Claims
- 1. An apparatus for production of a hydraulic binder which comprises:
- means defining a preheating zone for particulate material used in the manufacture of cement, said preheating zone including a plurality of sequential stages each stage providing a progressively greater degree of deacidification to the raw material passing therethrough,
- means for introducing raw material into said preheating zone,
- means defining a calcining zone receiving the preheated output of said preheating zone, and
- discharge means between said preheating zone and said calcining zone for withdrawing a portion of the preheated material of a predetermined degree of deacidification which is less than complete deacidification.
- 2. An apparatus according to claim 1 which includes:
- at least two discharge means for withdrawing portions of preheated material of different degrees of deacidification from said preheating zone.
- 3. An apparatus according to claim 1 including the following units, in sequence, following said discharge means:
- a dosaging discharge member,
- a cooling means,
- a quenching means, and
- a continuous weighing device.
- 4. An apparatus according to claim 3 which includes:
- a worm type conveyor operatively positioned within said cooling means.
- 5. An apparatus according to claim 3 which includes:
- a mixing worm operatively positioned in said cooling means.
- 6. An apparatus according to claim 1 in which: said preheating zone consists of a plurality of suspension gas type heat exchangers and said discharge means is located between two of said heat exchangers.
- 7. An apparatus according to claim 1 in which:
- said sequential stages consist of a plurality of superposed cyclone heat exchangers, and
- means defining a calcination stage in the lowermost of said cyclone heat exchangers.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2815161 |
Apr 1978 |
DEX |
|
Parent Case Info
This is a division of application Ser. No. 027,035 filed Apr. 4, 1979, now U.S. Pat. No. 4,236,932.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3884620 |
Rammler |
May 1975 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
703951 |
Feb 1954 |
GBX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
27035 |
Apr 1979 |
|