A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
System and process for producing sulfur and co-producing cement clinker by synergy of industrial byproduct gypsum and metallurgical slag melt
The invention discloses a system and a process for producing sulfur and co-producing cement clinker by synergy of industrial byproduct gypsum and metallurgical slag melt. The system comprises an industrial by-product gypsum storage bin; the industrial byproduct gypsum storage bin is communicated with the agglomeration fluidized bed decomposing furnace; the bottom end of the agglomerating fluidized bed decomposing furnace is communicated with the molten pool firing kiln, and the top is communicated with the carbon thermal reduction device; the carbon thermal reduction device is sequentially connected with the heat exchanger, the sulfur recovery device and the sulfur storage tank; a melt outlet at the bottom of the side wall of the molten pool firing kiln is communicated with a melt bubble atomization device, a nozzle extends into a waste heat boiler, an outlet of the waste heat boiler is connected with an electric precipitator, and a bottom outlet of the electric precipitator is connected with a cement clinker storage bin through conveying equipment. According to the invention, the industrial byproduct gypsum and the high-temperature metallurgical slag melt are used as raw materials for comprehensive utilization at the same time to produce Portland cement clinker and co-produce sulfur; therefore, stockpiling land occupation and environmental pollution of industrial by-product gypsum and metallurgical slag are eliminated, and resource multifunctional utilization and waste heat recovery of the metallurgical slag and the by-product gypsum are realized.
本发明公开了工业副产品石膏协同冶金渣熔液生产硫磺联产水泥熟料的系统及工艺，包括工业副产石膏储仓，工业副产石膏储仓与熔聚流化床分解炉连通，熔聚流化床分解炉底端与熔池烧成窑连通、顶部与碳热还原装置连通，碳热还原装置与换热器、硫磺回收装置、硫磺储罐依次相连；熔池烧成窑的侧壁底部熔液出口与熔液气泡雾化装置相通，喷嘴伸入余热锅炉中，余热锅炉出口连接电除尘，电除尘底部出口通过输送设备与水泥熟料成储仓相连。本发明的有益效果在于：同时将工业副产石膏和高温冶金渣熔液作为原料进行综合利用，生产硅酸盐水泥熟料并联产硫磺，消除工业副产石膏、冶金渣的堆存占地和环境污染，实现冶金渣、副产石膏的资源化多功能利用及余热回收。
System and process for producing sulfur and co-producing cement clinker by synergy of industrial byproduct gypsum and metallurgical slag melt
The invention discloses a system and a process for producing sulfur and co-producing cement clinker by synergy of industrial byproduct gypsum and metallurgical slag melt. The system comprises an industrial by-product gypsum storage bin; the industrial byproduct gypsum storage bin is communicated with the agglomeration fluidized bed decomposing furnace; the bottom end of the agglomerating fluidized bed decomposing furnace is communicated with the molten pool firing kiln, and the top is communicated with the carbon thermal reduction device; the carbon thermal reduction device is sequentially connected with the heat exchanger, the sulfur recovery device and the sulfur storage tank; a melt outlet at the bottom of the side wall of the molten pool firing kiln is communicated with a melt bubble atomization device, a nozzle extends into a waste heat boiler, an outlet of the waste heat boiler is connected with an electric precipitator, and a bottom outlet of the electric precipitator is connected with a cement clinker storage bin through conveying equipment. According to the invention, the industrial byproduct gypsum and the high-temperature metallurgical slag melt are used as raw materials for comprehensive utilization at the same time to produce Portland cement clinker and co-produce sulfur; therefore, stockpiling land occupation and environmental pollution of industrial by-product gypsum and metallurgical slag are eliminated, and resource multifunctional utilization and waste heat recovery of the metallurgical slag and the by-product gypsum are realized.
本发明公开了工业副产品石膏协同冶金渣熔液生产硫磺联产水泥熟料的系统及工艺，包括工业副产石膏储仓，工业副产石膏储仓与熔聚流化床分解炉连通，熔聚流化床分解炉底端与熔池烧成窑连通、顶部与碳热还原装置连通，碳热还原装置与换热器、硫磺回收装置、硫磺储罐依次相连；熔池烧成窑的侧壁底部熔液出口与熔液气泡雾化装置相通，喷嘴伸入余热锅炉中，余热锅炉出口连接电除尘，电除尘底部出口通过输送设备与水泥熟料成储仓相连。本发明的有益效果在于：同时将工业副产石膏和高温冶金渣熔液作为原料进行综合利用，生产硅酸盐水泥熟料并联产硫磺，消除工业副产石膏、冶金渣的堆存占地和环境污染，实现冶金渣、副产石膏的资源化多功能利用及余热回收。
System and process for producing sulfur and co-producing cement clinker by synergy of industrial byproduct gypsum and metallurgical slag melt
工业副产品石膏协同冶金渣熔液生产硫磺联产水泥熟料的系统及工艺
LI ZHIYUAN (author) / YU GUOZHONG (author)
2022-01-11
Patent
Electronic Resource
Chinese
| European Patent Office | 2022
High-sulfur cement clinker and method for producing high-sulfur cement clinker
| European Patent Office | 2023
Process for producing alpha high-strength gypsum powder by using industrial byproduct gypsum
| European Patent Office | 2021
Byproduct-based ettringite binder – A synergy between ladle slag and gypsum
| British Library Online Contents | 2019