Claims
- 1. A method of thermal destruction of waste material which comprises the steps of:
- (a) introducing solid waste material into a primary incineration combustion means;
- (b) providing a controllable amount of primary oxidizing gas into said primary incineration combustion means;
- (c) incinerating said solid waste in said primary incineration combustion means to produce solid residue and gaseous exhaust;
- (d) directing said gaseous exhaust from said primary incineration combustion means to containment means having an auxiliary burner generating hot auxiliary combustion product;
- (e) controllably introducing fluid combustible material into said auxiliary burner;
- (f) providing two secondary oxidizing gases having different oxygen and nitrogen concentrations from each other to said containment means, at least one of said oxidizing gases being provided into said auxiliary burner;
- (g) combusting the residual combustible components of said gaseous exhaust in said containment means and said fluid combustible material in said auxiliary burner;
- (h) sensing process characteristics in said primary incineration means and said containment means and generating signals indicative of the value of the process characteristics sensed;
- (i) comparing said sensed process characteristic signals with predetermined values for said process characteristics which insure reduction of hazardous components in said gaseous exhaust below a desired level and communicating the results of said comparison to means for controlling the flow of at least one of said two secondary oxidizing gases provided to said containment means;
- (j) sensing when batch of said waste material is about to be introduced into said primary incineration combustion means and generating a signal indicative of said introduction and communicating said introductions signal to said means for controlling the flow at least one of said two secondary oxidizing gases provided to said containment means; and
- (k) adjusting the flows of at least one of said oxidizing gases provided to said containment means to increase in response to said introduction signal the total amount of oxygen momentarily provided to said containment means and to increase the proportion of oxygen to nitrogen provided with said oxidizing gases.
- 2. The method of claim 1 wherein said secondary oxidizing gases are provided into said auxiliary burner.
- 3. The method of claim 2 wherein said secondary oxidizing gases are oxygen and air.
- 4. The method of claim 1 wherein said primary oxidizing gas is comprised of two gaseous oxidizers having different oxygen and nitrogen concentration.
- 5. The method of claim 4 wherein at least one of said gaseous oxidizers is provided into primary auxiliary burner firing into said primary incineration combustion means and burning primary fluid combustible material.
- 6. The method of claim 5, wherein the flow of said first fluid combustible material is reduced during said step of adjusting the flows.
- 7. The method of claim 6, which further comprises the step of directing a stream of water inside said primary incineration combustion means to reduce temperature.
- 8. The method of claim 4 wherein said indication signal is communicated to means controlling the flow of at least one of said two gaseous oxidizers and which further comprises the step of adjusting the flows of this one gaseous oxidizers to increase the amount of oxygen momentarily provided to said primary incineration combustion means and increasing the proportion of oxygen to nitrogen provided with said gaseous oxidizers.
- 9. The method of claim 1 wherein a signal indicative to said introduction of waste into said primary incineration combustible means is communicated to means for controlling the flows of said primary oxidizing gas and which further comprises the step of adjusting the flows of said primary oxidizing gas to increase the amount of oxygen momentarily provided to said primary incineration combustion means.
- 10. The method of claim 9 wherein the flow of at least one of said two secondary oxidizing gases during said step of adjusting the flows is provided for predetermined period of time.
- 11. The method of claim 1 wherein the flow of at least one of said two secondary oxidizing gases during said step of adjusting the flows is provided for predetermined period of time.
- 12. The method of claim 1, which further comprises the step of directing a stream of water inside said primary incineration combustion means to reduce temperature.
- 13. A method of thermal destruction of waste material which comprise the steps of:
- (a) introducing solid waste material into a primary incineration combustion means having a primary auxiliary burner;
- (b) providing two primary oxidizing gases having a different oxygen and nitrogen concentrations from each other to said primary incineration combustion means at least one of said oxidizing gases being provided into said primary auxiliary burner;
- (c) controllably introducing a first fluid combustible material into said primary auxiliary burner;
- (d) incinerating said solid waste in said primary incineration combustion means to produce solid residue and gaseous exhaust;
- (e) directing said gaseous exhaust from said primary incineration combustible means to containment means having a secondary auxiliary burner generating hot auxiliary combustion product;
- (f) controllably introducing a second fluid combustible material into said secondary axiliary burner;
- (g) providing a controllable amount of secondary oxidizing gas to said containment means;
- (h) combusting the residual combustible components of said gaseous exhaust in said containment means and said fluid combustible material in said primary and secondary auxiliary burners;
- (i) sensing process characteristics of said primary incineration means and said containment means and generating signals indicative of the value of the process characteristics sensed;
- (j) comparing said sensed process characteristics signals with predetermined values for said process characteristics which insure reduction of hazardous components of said solid waste stream below a desired level and communicating the results of said comparisons to means for controlling the flows of at least one of said two primary oxidizing gases provided to said primary incineration combustion means;
- (k) sensing when said batch of waste material is about to be introduced into said primary incineration combustion means and generating a signal indicative of said introduction and communicating said introduction signal to said means for controlling the flow of at least one of said two primary oxidizing gases; and
- (l) adjusting the flow of at least one of said two primary oxidizing gases to increase in response to said introduction signal the amount of oxygen momentarily provided to said primary incineration combustion means and to increase the proportion of oxygen to nitrogen provided with said primary oxidizing gases.
- 14. The method of claim 13 wherein said secondary oxidizing gas is comprised of two gaseous oxidizers having different oxygen and nitrogen concentration.
- 15. The method of claim 14 wherein one of said gaseous oxidizers is provided into said secondary auxiliary burner.
- 16. The method of claim 14, wherein a signal indicative to said introduction of waste into said primary incineration combustion means is communicated to means controlling the flow of at least one of said two gaseous oxidizers and which further comprises the step of adjusting the flow of this gaseous oxidizer provided to said containment means to increase the amount of oxygen momentarily provided to said containment means.
- 17. The method of claim 14, which further comprises the step of directing a stream of water inside said primary incineration combustible means to reduce temperature.
- 18. The method of claim 13 wherein at least one of said fluid combustible material is comprised of a liquid waste stream.
- 19. The method of claim 13 wherein said primary oxidizing gases are provided into said primary auxiliary burner.
- 20. The method of claim 13 wherein said two primary oxidizing gases are oxygen and air.
- 21. The method of claim 13 wherein in a signal indicative of said introduction of waste into said primary incineration combustion means is communicated to means for controlling the flows of said secondary oxidizing gas and which further comprises the step of adjusting the flows of said secondary oxidizing gas to increase the amount of oxygen momentarily provided to said containment means.
- 22. The method of claim 21 wherein the flows of said oxidizing gases provided during said step of adjusting of the flows are provided for predetermined period of time.
- 23. The method of claim 21, wherein the flow of said first fluid combustible material is reduced during said step of adjusting the flows.
- 24. The method of claim 13 wherein the flows of said oxidizing gases provided during said step of adjusting of the flows are provided for predetermined period of time.
- 25. The method of claim 24, wherein the flow of said first fluid combustible material is reduced during said step of adjusting the flows.
- 26. The method of claim 24, further comprises a step of directing a stream of water inside interior of said primary incineration combustion means to reduce the temperature.
- 27. The method of claim 13, wherein the flow of said first fluid combustible material is reduced during said step of adjusting the flows.
- 28. The method of claim 13, wherein the flow of said first fluid combustible material is reduced during said step of adjusting the flows.
- 29. The method of claim 28, further comprises a step of directing a stream of water inside interior of said primary incineration combustion means to reduce the temperature.
- 30. The method of claim 13, which further comprises a step of directing a stream of water inside interior of said primary incineration combustion means to reduce the temperature.
- 31. A method of thermal destruction of waste material which comprises the steps of:
- (a) introducing solid waste material into a primary incineration combustion means;
- (b) providing a controllable amount of a primary oxidizing gas to said primary incineration combustion means;
- (c) incinerating said solid waste in said primary incineration combustion means to produce solid residue and gaseous exhaust;
- (d) directing said gaseous exhaust from said primary incineration combustion means to containment means having an auxiliary burner generating hot auxiliary combustion product;
- (e) controllably introducing fluid combustible material into said auxiliary burner;
- (f) providing two secondary oxidizing gases having different oxygen and nitrogen concentrations from each other to said containment means, at least one of said oxidizing gases being provided into said auxiliary burner;
- (g) combusting the residual combustible components of said gaseous exhaust in said containment means and said fluid combustible material in said auxiliary burner;
- (h) sensing process characteristics of said primary incineration means and said containment means and generating signals indicative of the value of the process characteristics sensed;
- (i) comparing said sensing process characteristics signals with predetermined values for said process characteristics which insure reduction of hazardous components in said gaseous exhaust below a desired level and communicating the results of said comparison to means for controlling the flow at least one of said two secondary oxidizing gases provided to said containment means; and
- (j) sensing a value correlating with the level of unburned hazardous components in said gaseous exhaust;
- (k) comparing said sensed correlating value with a predetermined value representing the safe level of said unburned hazardous components which insures their presence in exhaust gases exiting from thermal destruction process in concentration below environmentally desired level to detect the event when the level of unburned components exceeds said safe level;
- (l) generating a signal indicative of said event and communicating this signal event to said means for controlling the flow of at least one of said two secondary oxidizing gases provided to said containment means; and
- (m) adjusting the flows of at least one of said secondary oxidizing gases provided to said containment means to increase in response to said signal the amount of oxygen momentarily provided to said containment means and to increase the proportion of oxygen to nitrogen provided with said oxidizing gases.
- 32. The method of claim 31 wherein said step of adjusting the flows further comprises the step of adjusting both flows of said secondary oxidizing gases to decrease the amount of nitrogen momentarily provided to said containment means.
- 33. The method of claim 32 wherein said primary oxidizing gas is comprised of two gaseous oxidizers having different oxygen and nitrogen concentrations.
- 34. The method of claim 32, which further comprises a step of directing a stream of water inside interior of said primary incineration combustion means to reduce the temperature.
- 35. The method of claim 31 wherein said primary oxidizing gas is comprised of two gaseous oxidizers having different oxygen and nitrogen concentrations.
- 36. The method of claim 35 or 33, wherein a signal indicative of said event is communicated to means controlling the flows of said two gaseous oxidizers and which further comprises the step of adjusting the flows of said gaseous oxidizers provided to said primary incineration combustion means to increase the amount of oxygen momentarily provided to said primary incineration combustion means and increasing the proportion of oxygen to nitrogen provided with said oxidizing gases.
- 37. The method of claim 36, wherein the flow of said first fluid combustible material is reduced during said step of adjusting the flows.
- 38. The method of claim 35, wherein at least one of said gaseous oxidizers is provided into a primary auxiliary burner firing into said primary incineration combustion means and burning primary fluid combustible material.
- 39. The method of claim 38, which further comprises a step of directing a stream of water inside interior of said primary incineration combustion means to reduce the temperature.
- 40. The method of claim 38, wherein the flow of said first fluid combustible material is reduced during said step of adjusting the flows.
- 41. The method of claim 40, which further comprises a step of directing a stream of water inside interior of said primary incineration combustible means to reduce the temperature.
- 42. The method of claim 35, wherein a signal indicative to said event is communicated to means controlling the flows of said primary oxidizing gas and which further comprises the step of adjusting the flows of said primary oxidizing gas to increase the amount of oxygen momentarily provided to said primary incineration combustion means.
- 43. The method of claim 35, wherein one of said gaseous oxidizers is provided into said secondary auxiliary burner.
- 44. The method of claim 31 wherein at least one of said fluid combustible material is comprised of a liquid waste stream.
- 45. The method of claim 31 wherein said two secondary oxidizing gases are provided into said auxiliary burner.
- 46. The method of claim 31 wherein said two secondary oxidizing gases are oxygen and air.
- 47. The method of claim 31 wherein said value correlating with the level of said unburned hazardous components is a concentration of carbon monoxide.
- 48. The method of claim 31 wherein said value correlating with the level of said unburned hazardous components is a concentration of oxygen.
- 49. The method of claim 31 wherein said value correlating with the level of said unburned hazardous components is an opacity of exhaust gases.
- 50. The method of claim 31, wherein a signal indicative to said event is communicated to means controlling the flows of said primary oxidizing gas and which further comprises the step of adjusting the flows of said primary oxidizing gas to increase the amount of oxygen momentarily provided to said primary incineration combustion means.
- 51. A method of thermal destruction of waste material which comprises the steps of:
- (a) introducing solid waste material into a primary incineration combustion means having a primary auxiliary burner;
- (b) providing two primary oxidizing gases having different oxygen and nitrogen concentration from each other to said primary incineration combustion means at least one of said oxidizing gases being provided into said primary auxiliary burner;
- (c) controllably introducing a first fluid combustible material into said primary auxiliary burner;
- (d) incinerating said solid waste in said primary incinerating combustion means to produce solid residue and gaseous exhaust;
- (e) directing said gaseous exhaust from said primary incineration combustion means to containment means having a secondary auxiliary burner generating hot auxiliary combustion product;
- (f) controllably introducing a secondary fluid combustible material into said secondary auxiliary burner;
- (g) providing a controllable amount of secondary oxidizing gas to said containment means;
- (h) combusting the residual combustible components of said gaseous exhaust in said containment means and said fluid combustible materials in said primary and secondary auxiliary burners;
- (i) sensing process characteristics of said primary incinerating means and said containment means and generating signals indicative of the value of the process characteristics sensed;
- (j) comparing said sensed process characteristic signals with predetermined values for said process characteristics which insure reduction of hazardous components in said solid waste stream below a desired level and communicating the results of said comparisons to means for controlling the flow of at least one of said two primary oxidizing gases provided to said primary incineration combustion means;
- (k) sensing a value correlating with the level of unburned hazardous components in said gaseous exhaust;
- (l) comparing said sensed correlating value with a predetermined value representing the safe level of said unburned components which insures their presence in exhaust gases exiting from thermal destruction process in concentrations below desired level to detect the event when the level of unburned components exceed said safe level;
- (m) generating a signal indicative of this event and communicating this signal to said means for controlling the flows of said primary oxidizing gases provided to said primary incineration combustion means; and
- (n) adjusting the flows of said primary oxidizing gases in response to said signal to increase the amount of oxygen momentarily provided to said primary incinerating combustion means and increasing the proportion of oxygen to nitrogen provided with said primary oxidizing gases.
- 52. The method of claim 51, wherein said value correlating with the level of said unburned hazardous components is a concentration of carbon monoxide.
- 53. The method of claim 51, wherein said value correlating with the level of said unburned hazardous components is a concentration of oxygen.
- 54. The method of claim 51, wherein said value correlating with the level of said unburned hazardous components is an opacity of exhaust gases.
- 55. The method of claim 51, wherein at least one of said fluid combustible material comprises a liquid waste stream.
- 56. The method of claim 51, wherein said two primary oxidizing gases are provided into said primary auxiliary burner.
- 57. The method of claim 51, wherein said two primary oxidizing gases are oxygen and air.
- 58. The method of claim 57, which further comprises a step of directing a stream of water inside interior of said primary incineration combustion means to reduce the temperature.
- 59. The method of claim 51, wherein a signal indicative of said event is communicated to means for controlling the flows of said secondary oxidizing gas and which further comprises the step of adjusting the flows of said secondary oxidizing gas to increase the amount of oxygen momentarily provided to said containment means.
- 60. The method of claim 51, wherein said secondary oxidizing gas is comprised of two gaseous oxidizers having different oxygen and nitrogen concentrations.
- 61. The method of claim 60, wherein a signal indicative to said event is communicated to means controlling the flows of said two gaseous oxidizers and which further comprises the step of adjusting the flows of said gaseous oxidizers provided to said containment means to increase the amount of oxygen momentarily provided to said containment means and increasing the proportion of oxygen to nitrogen provided with said oxidizing gases.
- 62. The method of claim 51 wherein said step of adjusting the flows further comprises the step of decreasing the amount of nitrogen momentarily provided to said primary incineration combustion means.
- 63. The method of claim 62, wherein said secondary oxidizing gas is comprised of two gaseous oxidizers having different oxygen and nitrogen concentrations.
- 64. The method of claim 62, wherein a signal indicative of said event is communicated to means for controlling the flows of said secondary oxidizing gas and which further comprises the step of adjusting the .[.glows.]. .Iadd.flows .Iaddend.of said secondary oxidizing gas to increase the amount of oxygen momentarily provided to said containment means.
- 65. The method of thermal destruction of waste material which comprises the steps of:
- (a) introducing solid waste material into a primary incineration combustion means;
- (b) providing a controllable amount of a primary oxidizing gas to said primary incineration combustion means;
- (c) incinerating said solid waste in said primary incineration combustion means to produce solid residue and gaseous exhaust;
- (d) directing said gaseous exhaust from said primary incineration combustion means to containment means having an auxiliary burner generating hot auxiliary combustion product;
- (e) controllably introducing fluid combustible material into said auxiliary burner;
- (f) providing two secondary oxidizing gases having different oxygen and nitrogen concentrations from each other to said containment means, at least one of said oxidizing gases being provided into said auxiliary burner;
- (g) combusting the residual combustible components of said gaseous exhaust in said containment means and said fluid combustible material in said auxiliary burner;
- (h) sensing process characteristics of said primary incineration means and said containment means and generating signals indicative of the value of the process characteristics sensed;
- (i) comparing said sensed process characteristic signals with predetermined values for said process characteristics which insure reduction of hazardous components in said gaseous exhaust below a desired level and communicating the results of said comparisons to means for controlling the flows of said secondary oxidizing gases provided to said containment means;
- (j) sensing a value correlating with the level of negative pressure within said primary incineration combustion means;
- (k) comparing sensed correlating value with a predetermined value representing the level of negative pressure which insures an absence of any leakage from said primary combustion means to detect the event when said correlating value is reduced below said predetermined value;
- (l) generating a signal indicative of this event and communicating this signal to said means for controlling the flows of oxidizing gases provided to said containment means; and
- (m) adjusting the flows of said oxidizing gases provided to said containment means to reduce in response to said signal the amount of nitrogen momentarily provided to said containment means and to increase the proportion of oxygen to nitrogen provided with said oxidizing gases.
- 66. The method of claim 65, wherein a signal indicative to said event is communicated to means controlling the flows of said primary oxidizing gas and which further comprises the step of adjusting the flows of said primary oxidizing gas in response to said signal to reduce the amount of nitrogen momentarily provided to said primary incineration combustion means.
- 67. The method of claim 65, wherein at least on of said fluid combustible material comprises a liquid waste stream.
- 68. The method of claim 65, wherein said two secondary oxidizing gases are provided into said auxiliary burner.
- 69. The method of claim 65, wherein said two secondary oxidizing gases are oxygen and air.
- 70. The method of claim 65, wherein said primary oxidizing gas is comprised of two gaseous oxidizers having a different oxygen and nitrogen concentrations.
- 71. The method of claim 70, wherein a signal indicative to said event is communicated to means controlling the flows of said two gaseous oxidizers and which further comprises the step of adjusting the flows of said gaseous oxidizers in response to said signal to reduce the amount of nitrogen momentarily provided to said primary incineration combustion means and to increase the proportion of oxygen to nitrogen provided with said gaseous oxidizers.
- 72. The method of claim 71, wherein the flow of said first fluid combustible material is reduced during said step of adjusting the flows.
- 73. The method of claim 71, wherein said two primary oxidizing gases are oxygen and air.
- 74. The method of claim 70, wherein at least one of said gaseous oxidizers is provided into a primary auxiliary burner firing into said primary incineration combustion means and burning primary fluid combustible material.
- 75. The method of claim 74, wherein said two gaseous oxidizers are oxygen and air.
- 76. The method of claim 74, wherein the flow of said first fluid combustible material is reduced during said step of adjusting the flows.
- 77. The method of claim 76, wherein said two primary oxidizing gases are oxygen and air.
- 78. The method of claim 74, wherein said two primary oxidizing gases are oxygen and air.
- 79. The method of claim 70, wherein said two gaseous oxidizers are oxygen and air.
- 80. A method of thermal destruction of waste material which comprises the steps of:
- (a) introducing solid waste material into a primary incineration combustion means having a primary auxiliary burner;
- (b) providing two primary oxidizing gases having different oxygen and nitrogen concentration from each other to said primary incineration combustion means, at least one of said oxidizing gases being provided into said primary auxiliary burner;
- (c) controllably introducing first fluid combustible material into said primary auxiliary burner;
- (d) incinerating said solid waste in said primary incineration combustion means to produce solid residue and gaseous exhaust;
- (e) directing said gaseous exhaust from said primary incineration combustion means to containment means having a secondary auxiliary burner generating hot auxiliary combustion product;
- (f) controllably introducing a second fluid combustible material to said secondary auxiliary burner;
- (g) providing a controllable amount of secondary oxidizing gas to said containment means;
- (h) combusting the residual combustible components of said gaseous exhaust in said containment means and said fluid combustible materials in said primary and secondary auxiliary burners;
- (i) sensing process characteristics of said primary incineration means and said containment means and generating signals indicative of the value of the process characteristics sensed;
- (j) comparing said sensed process characteristic signals with predetermined values for said process characteristics which insure reduction of hazardous components in said solid waste stream below a desired level and communicating the results of said comparisons to means for controlling the flow of said two primary oxidizing gases;
- (k) sensing the value correlating with the level of negative pressure within said primary incineration combustion means;
- (l) comparing sensed correlating value with a predetermined value representing the level of negative pressure which insures an absence of any leakage from said primary combustion means to detect the event when said correlating value is reduced below said predetermined value;
- (m) generating a signal indicative of this event and communicating this signal to said means for controlling the flows of said two primary oxidizing gases; and
- (n) adjusting the flows of said primary oxidizing gases in response to said signal to reduce the amount of nitrogen momentarily provided to said primary incineration combustion means and to increase the proportion of oxygen to nitrogen provided with said primary oxidizing gases.
- 81. The method of claim 80, wherein said secondary oxidizing gas is comprised of two gaseous oxidizers having different oxygen and nitrogen concentrations.
- 82. The method of claim 81, wherein of said gaseous oxidizers is provided into said secondary auxiliary burner.
- 83. The method of claim 81, wherein a signal indicative to said event is communicated to means controlling the flows of said two gaseous oxidizers and which further comprises the step of adjusting the flows of said gaseous oxidizers provided to said containment means to reduce the amount of nitrogen momentarily provided to said containment means and to increase the proportion of oxygen to nitrogen provided with said gaseous oxidizers.
- 84. The method of claim 80, wherein a signal indicative to said event is communicated to a means controlling the flows of said secondary oxidizing gas and which further comprises the step of adjusting the flows of said secondary oxidizing gas to reduce the amount of nitrogen momentarily provided to said containment means.
- 85. The method of claim 80, wherein said value correlating with the level of negative pressure is the value of pressure at exit of said primary incineration combustion means.
- 86. The method of claim 80, wherein said value correlating with the level of the negative pressure is the value of pressure at the exist of said containment means.
- 87. The method of claim 80, wherein at least one of said fluid combustible material comprises a stream of liquid waste.
- 88. The method of claim 80, wherein said primary oxidizing gases are provided into said primary auxiliary burner.
- 89. The method of claim 80, wherein said two primary oxidizing gases are oxygen and air.
- 90. The method of claim 80, wherein said two gaseous oxidizers are oxygen and air. .Iadd.
- 91. A method of thermal destruction of waste material which comprises the steps of:
- a) introducing solid waste material into a primary incineration means;
- b) providing a primary oxidizing gas to said primary incineration means;
- c) incinerating said solid waste material in said primary incineration means to produce solid residue and gaseous exhaust;
- d) directing said gaseous exhaust from said primary incineration means to a containment means having an auxiliary burner generating hot auxiliary combustion product;
- e) controllably introducing fluid combustible material into said auxiliary burner;
- f) providing two secondary oxidizing gases having different oxygen and nitrogen concentrations from each other to said containment means, at least one of said oxidizing gases being provided into said auxiliary burner;
- g) combusting the residual combustible components of said gaseous exhaust in said containment means and combusting said fluid combustible material introduced into said auxiliary burner;
- h) sensing process characteristics of said primary incineration means and said containment means and generating signals indicative of the values of the process characteristics sensed;
- i) comparing at least one said sensed process characteristic signal with a predetermined value for said process characteristic which ensures reduction of hazardous components of said gaseous exhaust below a desired level and communicating the result of said comparison to means for controlling the flow of at least one of said two secondary oxidizing gases provided to said containment means;
- j) sensing when a batch of said solid waste material is about to be introduced into said primary incineration means and generating a signal indicative of said introduction; and
- k) in response to said signal indicative of said introduction of solid waste material, adjusting the flow of at least one of said oxidizing gases provided to said containment means to increase the total amount of oxygen momentarily provided to said containment means and to increase the proportion of oxygen to nitrogen provided with said oxidizing gases. .Iaddend. .Iadd.92. The method of claim 91, wherein said signal indicative of said introduction of solid waste material is automatically communicated to said means for controlling the flow of at least one of said two secondary oxidizing gases. .Iaddend. .Iadd.93. The method of claim 91, wherein said primary oxidizing gas is comprised of two gaseous oxidizers having different oxygen and nitrogen concentrations. .Iaddend. .Iadd.94. The method of claim 93, wherein said signal indicative of said introduction of solid waste material into said primary incineration means is communicated to means for controlling the flow of at least one of said two gaseous oxidizers and which further comprises the step of adjusting the flow of at least one of said two gaseous oxidizers to increase the amount of oxygen momentarily provided to said primary incineration means and to increase the proportion of oxygen to nitrogen provided with said gaseous oxidizers. .Iaddend. .Iadd.95. The method of claim 91, wherein said signal indicative of said introduction of solid waste material into said primary incineration means is communicated to means for controlling the flow of said primary oxidizing gas and which further comprises the step of adjusting the flow of said primary oxidizing gas to increase the amount of oxygen momentarily provided to said primary incineration means. .Iaddend. .Iadd.96. A method of thermal destruction of waste material which comprise the steps of:
- a) introducing solid waste material into a primary incineration means having a primary auxiliary burner;
- b) providing two primary oxidizing gases having different oxygen and nitrogen concentrations from each other to said primary incineration means, at least one of said oxidizing gases being provided into said primary auxiliary burner;
- c) controllably introducing a first fluid combustible material into said primary auxiliary burner;
- d) incinerating said solid waste material in said primary incineration means to produce solid residue and gaseous exhaust;
- e) directing said gaseous exhaust from said primary incineration means to a containment means having a secondary auxiliary burner generating hot auxiliary combustion product;
- f) controllably introducing a second fluid combustible material into said secondary auxiliary burner;
- g) providing a controllable amount of secondary oxidizing gas to said containment means;
- h) combusting the residual combustible components of said gaseous exhaust in said containment means and combusting said fluid combustible materials introduced into said primary and secondary auxiliary burners;
- i) sensing at least one process characteristic of said primary incineration means and said containment means and generating signals indicative of the values of the process characteristic sensed;
- j) comparing at least one said sensed process characteristic signal with a predetermined value for said at least one process characteristic which ensures reduction of hazardous components of said solid waste stream below a desired level and communicating the results of said comparison to means for controlling the flow of at least one of said two primary oxidizing gases provided to said primary incineration means;
- k) sensing when a batch of said solid waste material is about to be introduced into said primary incineration means and generating a signal indicative of said introduction; and
- l) in response to said signal indicative of said introduction of solid waste material, adjusting the flow of at least one of said two primary oxidation gases to increase the amount of oxygen momentarily provided to said primary incineration means and to increase the proportion of oxygen to nitrogen provided with said primary oxidizing gases. .Iaddend. .Iadd.97. The method of claim 96, wherein said signal indicative of said introduction of solid waste material is automatically communicated to said means for controlling the flow of at least one of said two primary oxidizing gases. .Iaddend. .Iadd.98. The method of claim 96, wherein said secondary oxidizing gas is comprised of two gaseous oxidizers having different oxygen and nitrogen concentrations. .Iaddend. .Iadd.99. The method of claim 98, wherein said signal indicative of said introduction of solid waste material into said primary incineration means is communicated to means for controlling the flow of at least one of said two gaseous oxidizers and which further comprises the step of adjusting the flow of at least one of said two gaseous oxidizers provided to said containment means to increase the amount of oxygen momentarily provided to said containment
- means. .Iaddend. .Iadd.100. The method of claim 96, wherein said signal indicative of said introduction of solid waste material into said primary incineration means is communicated to means for controlling the flow of said secondary oxidizing gas and which further comprises the step of adjusting the flow of said secondary oxidizing gas to increase the amount of oxygen momentarily provided to said containment means. .Iaddend. .Iadd.101. A method of thermal destruction of waste material which comprises the steps of:
- a) introducing solid waste material into a primary incineration means;
- b) providing a primary oxidizing gas to said primary incineration means;
- c) incinerating said solid waste in said primary incineration means to produce solid residue and gaseous exhaust;
- d) directing said gaseous exhaust from said primary incineration means to a containment means having an auxiliary burner generating hot auxiliary combustion product;
- e) controllably introducing fluid combustible material into said auxiliary burner;
- f) providing two secondary oxidizing gases having different oxygen and nitrogen concentrations from each other to said containment means, at least one of said oxidizing gases being provided into said auxiliary burner;
- g) combusting the residual combustible components of said gaseous exhaust in said containment means and combusting said fluid combustible material introduced into said auxiliary burner;
- h) sensing process characteristics of said primary incineration means and said containment means and generating signals indicative of the values of the process characteristics sensed;
- i) comparing at least one said sensed process characteristic signal with a predetermined value for said process characteristic which ensures reduction of hazardous components of said gaseous exhaust below a desired level and communicating the results of said comparisons to means for controlling the flow at least one of said two secondary oxidizing gases provided to said containment means;
- j) sensing a value correlating with the level of unburned hazardous components in said gaseous exhaust;
- k) comparing said sensed correlating value with a predetermined value representing the safe level of said unburned hazardous components which ensures their presence in exhaust gases exiting from the thermal destruction process in concentrations below an environmentally desired level to detect the event when the level of unburned components exceeds said safe level; and
- l) in response to said event of exceeding the safe level of unburned components, adjusting the flow of at least one of said secondary oxidizing gases provided to said containment means to increase the amount of oxygen momentarily provided to said containment means and to increase the proportion of oxygen to nitrogen provided with said secondary oxidizing
- gases. .Iaddend. .Iadd.102. The method of claim 101, wherein a signal is generated indicative of said event of exceeding the safe level of unburned components which is automatically communicated to said means for controlling the flow of at least one of said two secondary oxidizing gases provided to said containment means. .Iaddend. .Iadd.103. The method of claim 102, wherein said primary oxidizing gas is comprised of two gaseous oxidizers having different oxygen and nitrogen concentrations. .Iaddend.
- .Iadd.104. The method of claim 103, wherein said signal indicative of said event is communicated to means for controlling the flow of at least one of said two gaseous oxidizers and which further comprises the step of adjusting the flow of at least one of said two gaseous oxidizers provided to said primary incineration means to increase the amount of oxygen momentarily provided to said primary incineration means and to increase the proportion of oxygen to nitrogen provided with said gaseous oxidizers. .Iaddend. .Iadd.105. The method of claim 102, wherein said signal indicative of said event is communicated to means for controlling the flow of said primary oxidizing gas and which further comprises the step of adjusting the flow of said primary oxidizing gas to increase the amount of oxygen momentarily provided to said primary incineration means. .Iaddend. .Iadd.106. A method of thermal destruction of waste material which comprises the steps of:
- a) introducing solid waste material into a primary incineration means having a primary auxiliary burner;
- b) providing two primary oxidizing gases having different oxygen and nitrogen concentration from each other to said primary incineration means, at least one of said oxidizing gases being provided into said primary auxiliary burner;
- c) controllably introducing a first fluid combustible material into said primary auxiliary burner;
- d) incinerating said solid waste in said primary incineration means to produce solid residue and gaseous exhaust;
- e) directing said gaseous exhaust from said primary incineration means to a containment means having a secondary auxiliary burner generating hot auxiliary combustion products;
- f) controllably introducing a secondary fluid combustible material into said secondary auxiliary burner;
- g) providing a controllable amount of secondary oxidizing gas to said containment means;
- h) combusting the residual combustible components of said gaseous exhaust in said containment means and combusting said fluid combustible materials introduced into said primary and secondary auxiliary burners;
- i) sensing process characteristics of said primary incineration means and said containment means and generating signals indicative of the values of the process characteristics sensed;
- j) comparing at least one said sensed process characteristic signal with a predetermined value for said process characteristic which ensures reduction of hazardous components of said solid waste stream below a desired level and communicating the results of said comparisons to means for controlling the flow of at least one of said two primary oxidizing gases provided to said primary incineration means;
- k) sensing a valve correlating with the level of unburned hazardous components in said gaseous exhaust;
- l) comparing said sensed correlating value with a predetermined value representing the safe level of said unburned components which ensures their presence in exhaust gases existing from the thermal destruction process in concentrations below an environmentally desired level to detect the event when the level of unburned components exceeds said safe level; and
- m) in response to said event of exceeding the safe level of unburned components, adjusting the flow of at least one of said two primary oxidizing gases to increase the amount of oxygen momentarily provided to said primary incinerating combustion means and increasing the proportion of oxygen to nitrogen provided with said primary oxidizing gases.
- .Iaddend. .Iadd.107. The method of claim 106, wherein a signal is generated indicative of said event of exceeding the safe level of unburned components which is automatically communicated to said means for controlling the flow of at least one of said two primary oxidizing gases provided to said primary incineration means. .Iaddend. .Iadd.108. The method of claim 107, wherein said secondary oxidizing gas is comprised of two gaseous oxidizers having different oxygen and nitrogen concentrations. .Iaddend. .Iadd.109. The method of claim 108, wherein said signal indicative of said event is communicated to means for controlling the flow of at least one of said two gaseous oxidizers and which further comprises the step of adjusting the flow of at least one of said two gaseous oxidizers provided to said containment means to increase the amount of oxygen momentarily provided to said containment means and to increase the proportion of oxygen to nitrogen provided with said gaseous oxidizers. .Iaddend. .Iadd.110. The method of claim 107, wherein said signal indicative of said event is communicated to means for controlling the flow of said secondary oxidizing gas and which further comprises the step of adjusting the flow of said secondary oxidizing gas to increase the amount of oxygen momentarily provided to said containment means. .Iaddend. .Iadd.111. A method of thermal destruction of waste material which comprises the steps of:
- a) introducing solid waste material into a primary incineration means;
- b) providing a primary oxidizing gas to said primary incineration means;
- c) incinerating said solid waste material in said primary incineration means to produce solid residue and gaseous exhaust;
- d) directing said gaseous exhaust from said primary incineration combustion means to a containment means having an auxiliary burner generating hot auxiliary combustion product;
- e) controllably introducing fluid combustible material into said auxiliary burner;
- f) providing two secondary oxidizing gases having different oxygen and nitrogen concentrations from each other to said containment means, at least one of said oxidizing gases being provided into said auxiliary burner;
- g) combusting the residual combustible components of said gaseous exhaust in said containment means and combusting said fluid combustible material introduced into said auxiliary burner;
- h) sensing process characteristics of said primary incineration means and said containment means and generating signals indicative of the values of the process characteristics sensed;
- i) comparing at least one said sensed process characteristic signal with a predetermined value for said process characteristic which ensures reduction of hazardous components of said gaseous exhaust below a desired level and communicating the results of said comparisons to means for controlling the flow of at least one of said two secondary oxidizing gases provided to said containment means;
- j) sensing a value correlating with the level of negative pressure within said primary incineration means;
- k) comparing said sensed correlating value with a predetermined value representing the level of negative pressure which ensures an absence of any leakage from said primary incineration means to detect the event when said sensed correlating value is reduced below said predetermined value; and
- l) in response to said event of the level of negative pressure being reduced below said predetermined value, adjusting the flow of at least one of said two secondary oxidizing gases provided to said containment means to reduce the amount of nitrogen momentarily provided to said containment means and to increase the proportion to oxygen to nitrogen provided with
- said oxidizing gases. .Iaddend. .Iadd.112. The method of claim 111, wherein a signal is generated indicative of said event of the level of negative pressure being reduced below said predetermined value which is automatically communicated to said means for controlling the flow of at least one of said two secondary oxidizing gases provided to said containment means. .Iaddend. .Iadd.113. The method of claim 112, wherein said primary oxidizing gas is comprised of two gaseous oxidizers having different oxygen and nitrogen concentrations. .Iaddend. .Iadd.114. The method of claim 113, wherein said signal indicative of said event is communicated to means for controlling the flow of at least one of said two gaseous oxidizers and which further comprises the step of adjusting the flow of at least one of said two gaseous oxidizers in response to said signal to reduce the amount of nitrogen momentarily provided to said primary incineration means and to increase the proportion of oxygen to nitrogen provided with said gaseous oxidizers. .Iaddend. .Iadd.115. A method of thermal destruction of waste material which comprises the steps of:
- a) introducing solid waste material into a primary incineration means having a primary auxiliary burner;
- b) providing two primary oxidizing gases having different oxygen and nitrogen concentration from each other to said primary incineration means, at least one of said oxidizing gases being provided into said primary auxiliary burner;
- c) controllably introducing first fluid combustible material into said primary auxiliary burner;
- d) incinerating said solid waste material in said primary incineration means to produce solid residue and gaseous exhaust;
- e) directing said gaseous exhaust from said primary incineration means to a containment means having a secondary auxiliary burner generating hot auxiliary combustion product;
- f) controllably introducing a second fluid combustible material to said secondary auxiliary burner;
- g) providing a controllable amount of secondary oxidizing gas to said containment means;
- h) combusting the residual combustible components of said gaseous exhaust in said containment means and combusting said fluid combustible materials introduced into said primary and secondary auxiliary burners;
- i) sensing process characteristics of said primary incineration means and said containment means and generating signals indicative of the values of the process characteristics sensed;
- j) comparing at least one said sensed process characteristic signal with a predetermined value for said process characteristic which ensures reduction of hazardous components in said solid waste stream below a desired level and communicating the results of said comparisons to means for controlling the flow of at least one of said two primary oxidizing gases;
- k) sensing the value correlating with the level of negative pressure within said primary incineration means;
- l) comparing said sensed correlating value with a predetermined value representing the level of negative pressure which ensures an absence of any leakage from said primary incineration means to detect the event when said sensed correlating value is reduced below said predetermined value; and
- m) in response to said event of the level of negative pressure being reduced below said predetermined value, adjusting the flow of at least one of said two primary oxidizing gases to reduce the amount of nitrogen momentarily provided to said primary incineration means and to increase the proportion of oxygen to nitrogen provided with said primary oxidizing
- gases. .Iaddend. .Iadd.116. The method of claim 115, wherein a signal is generated indicative of said event of the level of negative pressure being reduced below said predetermined value which is automatically communicated to said means for controlling the flow of at least one of said two primary oxidizing gases. .Iaddend. .Iadd.117. The method of claim 116, wherein said secondary oxidizing gas is comprised of two gaseous oxidizers having different oxygen and nitrogen concentrations. .Iaddend. .Iadd.118. The method of claim 117, wherein said signal indicative of said event is communicated to means for controlling the flow of at least one of said two gaseous oxidizers and which further comprises the step of adjusting the flow of at least one of said two gaseous oxidizers provided to said containment means in response to said signal to reduce the amount of nitrogen momentarily provided to said containment means and to increase the proportion of oxygen to nitrogen provided with said gaseous oxidizers.
- .Iaddend. .Iadd.119. The method of claim 116, wherein said signal indicative to said event is communicated to a means for controlling the flow of said secondary oxidizing gas and which further comprises the step of adjusting the flow of said secondary oxidizing gas to reduce the amount of nitrogen momentarily provided to said containment means. .Iaddend.
Parent Case Info
This application is a continuation-in-part of Ser. No. 883,769, filed Jul. 9, 1986, .Iadd.U.S. Pat. No. 4,797,087, .Iaddend.which is a continuation-in-part of application Ser. No. 755,831, filed Jul. 15, 1985, .Iadd.U.S. Pat. No. 4,642,047, .Iaddend.which is a continuation-in-part of application Ser. No. 642,141, filed Aug. 17, 1984, issued as U.S. Pat. No. 4,622,007; all of which are incorporated herein by reference.
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Continuation in Parts (3)
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