System and method for recovering calcium carbonate and sulfur by calcining gypsum
A calcium carbonate and calcination technology, applied in the preparation/purification of calcium carbonate/strontium/barium, sulfur, etc., can solve the problems of limiting the application scope of sulfur resources, difficulty in storing and transporting sulfuric acid, affecting the stability of the sulfur market, etc. Chemical utilization, improve the utilization rate of raw materials, and prevent the effect of over-burning
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Embodiment 1
[0054] A system for recovering calcium carbonate and sulfur by calcination of gypsum, including: coal gasification-calcination U-shaped furnace 5, H 2 O-CO 2 Processor 8, Claus reactor 10, the coal gasification section on the right side of the coal gasification-calcination U-shaped furnace 5 is connected to the calcium-based material storage bin 1 and the coal powder storage bin 2 respectively, and the coal gasification-calcination U-shaped The calcining section on the left side of the U-shaped furnace 5 is connected to the gypsum storage bin 3, the top of the calcining section on the left side of the coal gasification-calcination U-shaped furnace 5 is connected to the high-temperature separator 6, and the bottom of the high-temperature separator 6 is cooled with calcium sulfide-calcium oxide Device 7, H 2 O-CO 2 Processor 8, calcium carbonate storage bin 9 are connected successively, and described H 2 O-CO 2The processor 8 is also connected to a Claus reactor 10 , and the...
Embodiment 2
[0059] A system for recovering calcium carbonate and sulfur by calcination of gypsum, including: coal gasification-calcination U-shaped furnace 5, H 2 O-CO 2 Processor 8, Claus reactor 10, the coal gasification section on the right side of the coal gasification-calcination U-shaped furnace 5 is connected to the calcium-based material storage bin 1 and the coal powder storage bin 2 respectively, and the coal gasification-calcination U-shaped The calcining section on the left side of the U-shaped furnace 5 is connected to the gypsum storage bin 3, the top of the calcining section on the left side of the coal gasification-calcination U-shaped furnace 5 is connected to the high-temperature separator 6, and the bottom of the high-temperature separator 6 is cooled with calcium sulfide-calcium oxide Device 7, H 2 O-CO 2 Processor 8, calcium carbonate storage bin 9 are connected successively, and described H 2 O-CO 2 The processor 8 is also connected to a Claus reactor 10 , and th...
Embodiment 3
[0064] A system for recovering calcium carbonate and sulfur by calcination of gypsum, including: coal gasification-calcination U-shaped furnace 5, H 2 O-CO 2 Processor 8, Claus reactor 10, the coal gasification section on the right side of the coal gasification-calcination U-shaped furnace 5 is connected to the calcium-based material storage bin 1 and the coal powder storage bin 2 respectively, and the coal gasification-calcination U-shaped The calcining section on the left side of the U-shaped furnace 5 is connected to the gypsum storage bin 3, the top of the calcining section on the left side of the coal gasification-calcination U-shaped furnace 5 is connected to the high-temperature separator 6, and the bottom of the high-temperature separator 6 is cooled with calcium sulfide-calcium oxide Device 7, H 2 O-CO 2 Processor 8, calcium carbonate storage bin 9 are connected successively, and described H 2 O-CO 2 The processor 8 is also connected to a Claus reactor 10 , and th...
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