Patent Application
20250188858
This application claims priority to Chinese patent application number 202323307786.5, filed on Dec. 6, 2023, the disclosure of which is incorporated by reference herein in its entirety.
The disclosure relates generally to the field of apparatus for processing tail gases. More specifically, the disclosure relates to systems for catalyzing and degreasing tail gases.
In the prior art, a tail gas of a catalytic degreasing furnace is often processed with a combustion method, an adsorption method, and a dissolution method.
The adsorption method (see
No effective solution is proposed for the problem of ineffective removal of the hazardous substances in related art.
The following presents a simplified summary of the invention in order to provide a basic understanding of some aspects of the invention. This summary is not an extensive overview of the invention. It is not intended to identify critical elements or to delineate the scope of the invention. Its sole purpose is to present some concepts of the invention in a simplified form as a prelude to the more detailed description that is presented elsewhere.
In some embodiments, the disclosure provide a system for catalyzing and degreasing a tail gas including an acid-inlet volatilization device, a catalytic degreasing device, and a three-way catalytic converter. The catalytic degreasing device is connected with the acid-inlet volatilization device, the three-way catalytic converter is connected with the catalytic degreasing device, the three-way catalytic converter is configured to decompose or react with hazardous substances.
Optionally, the acid-inlet volatilization device includes an acid storage tank and a pump, the pump is connected with the acid storage tank, and the pump is connected with the catalytic degreasing device.
Optionally, the acid-inlet volatilization device further includes an evaporator connected between the pump and the catalytic degreasing device.
Optionally, the evaporator is connected with a nitrogen gas inlet.
Optionally, the system further includes a tail-gas heater provided around a housing of the three-way catalytic converter.
Optionally, the three-way catalytic converter is provided with a gas inlet and a gas outlet at top of the three-way catalytic converter near two ends.
Optionally, at least one three-way catalytic filter element is arranged inside the three-way catalytic converter.
Optionally, two three-way catalytic filter elements are arranged inside the three-way catalytic converter.
Optionally, the catalytic degreasing device includes a catalytic degreasing furnace, a bracket, a fan, a degreasing heater, and a bioblast. The bracket is provided inside the catalytic degreasing furnace, and the bioblast is placed on the bracket.
Optionally, the fan is located on a left-side furnace wall of the catalytic degreasing furnace, and the degreasing heater is circumferentially arranged on an inner furnace wall of the catalytic degreasing furnace.
In other embodiments, the system for catalyzing and degreasing the tail gas according to the disclosure includes: an acid-inlet volatilization device, a catalytic degreasing device communicated with the acid-inlet volatilization device, and a three-way catalytic converter communicated with the catalytic degreasing device. The hazardous substances are decomposed and/or reacted by the three-way catalytic converter.
Optionally, the acid-inlet volatilization device includes an acid storage tank, and a pump communicated with the acid storage tank. The pump is communicated with the catalytic degreasing device.
Optionally, the acid-inlet volatilization device further includes an evaporator connected between the pump and the catalytic degreasing device.
Optionally, the system for catalyzing and degreasing the tail gas further includes a tail-gas heater provided around a housing of the three-way catalytic converter.
Optionally, at least one three-way catalytic filter element is arranged inside the three-way catalytic converter.
Optionally, the three-way catalytic converter is provided with a gas inlet and a gas outlet at the top of the three-way catalytic converter near two ends.
Optionally, the two three-way catalytic filter element are disclosed.
Optionally, the catalytic degreasing device includes a catalytic degreasing furnace, a bracket, a fan, and a degreasing heater provided in the catalytic degreasing furnace, and a bioblast placed on the bracket.
Optionally, the fan is located on the left-side furnace wall of the catalytic degreasing furnace. The degreasing heater is circumferentially arranged on the inner furnace wall of the catalytic degreasing furnace and located on the periphery of the bioblast.
Optionally, the evaporator is communicated with a nitrogen gas inlet.
In further embodiments of the disclosure, the three-way catalysis is used to replace modes of burning, adsorbing and dissolving the tail gas. The three-way catalytic converter communicated with the catalytic degreasing device and is heated by the tail-gas heater provided in the three-way catalytic converter. The hazardous substances discharged from the catalytic degreasing device are decomposed and/or reacted.
Illustrative embodiments of the present disclosure are described in detail below with reference to the attached drawing figures.
The following describes some non-limiting exemplary embodiments of the invention with reference to the accompanying drawings. The described embodiments are merely a part rather than all of the embodiments of the invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the disclosure shall fall within the scope of the disclosure.
To enable a person skilled in the art to better understand the embodiments of the disclosure, the following clearly and completely describes the technical solutions in embodiments of the disclosure in conjunction with the accompanying drawings in the embodiments of the disclosure. Obviously, the described embodiments are a part of the embodiments of the disclosure, rather than all embodiments. Based on the embodiments of the disclosure, all other embodiments obtained by a person skilled in the art without inventive work shall fall within the protection scope of the disclosure.
It should be noted that the terms “first” and “second” in the description and claims of the disclosure and the forgoing drawings are used to distinguish similar objects, but are not necessarily used to describe a specific order or sequence. It should be understood that data so used may be interchangeable, where appropriate, for the embodiments of the disclosure described herein. In addition, the terms “include” and “have”, and any variations thereof, are intended to cover non-exclusive inclusion, e.g., a process, a method, a system, a product or an apparatus that incorporates a series of steps or units need not be limited to those that are clearly enumerated, but may include other steps or units that are not clearly enumerated or are inherent to the process, the method, the product or the apparatus.
In the disclosure, orientation or positional relationships indicated by the terms “upper”, “lower”, “left”, “right”, “front”, “back”, “top”, “bottom”, “inside”, “outside”, “middle”, “vertical”, “horizontal”, “transverse”, “longitudinal”, etc., are orientation or positional relationships based on the accompanying drawings. These terms are used primarily to better describe the present utility model and the embodiments thereof, and are not intended to define that indicated devices, elements, or assemblies should have a particular orientation, or be constructed and operated in a particular orientation.
Moreover, some of the forgoing terms may be used to indicate other meanings in addition to the orientation or positional relationships, for example, the term “upper” may also be used in some cases to indicate some relationship of dependency or connection. For a person skilled in the art, the specific meaning of these terms in the present utility model may be understood based on specific situations.
In addition, the terms “mounted”, “provided”, “provided with”, “connected”, “interconnected”, and “sleeved” are to be understood in a broad sense. For example, “connected” may refer to fixed connection, detachable connection, or an integral structure, may refer to mechanical connection or electrical connection, may refer to direct connection, or indirect connection through an intermediate medium, or internal communication between two devices, two elements or two assemblies. A person skilled in the art may understand specific meanings of the forgoing terms in the embodiments of the utility model according to a specific situation.
It is to be noted that the embodiments of the disclosure and the features of the embodiments may be combined with each other without conflict. The disclosure will be described in detail below in combination with embodiments with reference to the accompanying drawings.
In
As shown in
From the forgoing description, it may be seen that the disclosure realizes the following technical effects:
In the embodiment of the disclosure, the three-way catalysis is used to replace modes of burning, adsorbing and dissolving the tail gas. The three-way catalytic converter 3 communicated with the catalytic degreasing device 2 is heated by the tail-gas heater 4 provided in the three-way catalytic converter 3. The hazardous substances discharged from the catalytic degreasing device 2 are decomposed and/or reacted, thereby achieving the objectives that the effect of removing the hazardous substances is more stable than that of a combustion method, and the hazardous substances may be removed more efficiently than those of an adsorption method and a dissolution method. This realizes the technical effect of improving the effect of removing the hazardous substances, and then solves the technical problem that the effect of removing the hazardous substances is not satisfactory.
Optionally, the acid-inlet volatilization device 1 further may include an evaporator 7 connected between the pump 6 and the catalytic degreasing device 2. An acidic substance taken by the pump 6 is first volatilized into an acidic vapor through the evaporator 7, so that the acidic vapor may be evenly dispersed in the bioblast 15 in a cavity of the catalytic degreasing furnace 11 through the agitation of the fan 13, thus promoting the decomposition of the polymerized compound of the bioblast 15. Optionally, the evaporator 7 is communicated with the nitrogen gas inlet 16. The nitrogen gas and an acidic steam are mixed first and then input into the catalytic degreasing furnace 11 together to ensure that the nitrogen gas and the acidic steam may be dispersed uniformly on the bioblast 15 in the cavity of the catalytic degreasing furnace 11. This also eliminates the nitrogen gas inlet 16 provided on the catalytic degreasing furnace 11 additionally, simplifying a structure.
Optionally, the system for catalyzing and degreasing the tail gas further may include the tail-gas heater 4 provided around a housing of the three-way catalytic converter 3. The tail-gas heater 4 may heat the three-way catalytic converter 3 to increase a temperature, thereby enhancing the catalytic efficiency of the three-way catalytic converter 3 and ensuring that the three-way catalytic converter may remove harmful substances more effectively. The heating efficiency may be improved by the tail-gas heater 4 circumferential arranged.
Optionally, at least one three-way catalytic filter element 8 is arranged inside the three-way catalytic converter 3. Optionally, the two three-way catalytic filter elements 8 are disclosed. The harmful substances may be removed one by one by the plurality of three-way catalytic filter elements 8, which improves removal capacity.
Optionally, a gas inlet 9 and a gas outlet 10 are arranged at the top of the three-way catalytic converter 3 near the two ends. Air necessary for decomposition and reaction is replenished through the gas inlet 9. A gas or substances removed with the harmful substances is discharged through the gas outlet 10.
Optionally, the fan 13 is located on the left-side furnace wall of the catalytic degreasing furnace 11. The degreasing heater 14 is circumferentially arranged on the inner furnace wall of the catalytic degreasing furnace 11 and located on the periphery of the bioblast 15. The acidic steam and the nitrogen gas entering from the left side may be blown to various positions of the catalytic degreasing furnace 11. The degreasing heater 14 circumferentially arranged may improve the heating efficiency and the efficiency of catalytic degreasing.
The foregoing is merely a preferred embodiment of the disclosure and is not intended to limit the disclosure. For a person skilled in the art, the disclosure may have various changes and variations. Any modification, equivalent replacement and improvement made within the spirit and principle of the disclosure shall be included within the protection scope of the disclosure.
Various embodiments of the disclosure may have one or more of the following effects. In some embodiments, the disclosure may provide a system for catalyzing and degreasing a tail gas to solve the problem of ineffective removal of harmful substances. In other embodiments, the effect of removing the hazardous substances according the disclosure may be more stable than that of a combustion method, and may be more effective than those of an adsorption method and a dissolution method in removing the hazardous substances. The disclosure may help to solve the technical problem of ineffective removal of the harmful substances. In further embodiments, the disclosure may achieve the objectives that the effect of removing the hazardous substances is more stable than that of a combustion method, and the hazardous substances may be removed more efficiently than those of an adsorption method and a dissolution method. Such embodiments may achieve the technical effect of improving the effect of removing the hazardous substances, and may help to solve the technical problem that the effect of removing the hazardous substances is not satisfactory.
Many different arrangements of the various components depicted, as well as components not shown, are possible without departing from the spirit and scope of the present disclosure. Embodiments of the present disclosure have been described with the intent to be illustrative rather than restrictive. Alternative embodiments will become apparent to those skilled in the art that do not depart from its scope. A skilled artisan may develop alternative means of implementing the aforementioned improvements without departing from the scope of the present disclosure.
It will be understood that certain features and subcombinations are of utility and may be employed without reference to other features and subcombinations and are contemplated within the scope of the claims. Unless indicated otherwise, not all steps listed in the various figures need be carried out in the specific order described.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202323307786.5 | Dec 2023 | CN | national |
