A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method and device for preparing sulfuric acid and co-producing cement clinker from industrial byproduct gypsum
The invention belongs to the technical field of comprehensive treatment of industrial by-products, and particularly discloses a method and a device for preparing sulfuric acid and co-producing cement clinker from industrial by-product gypsum. The process disclosed by the invention comprises the following steps: firstly, mixing and grinding the industrial byproduct gypsum, a reducing agent and an auxiliary material to obtain a raw material; then molding and granulating the raw material to obtain an intermediate material; placing the intermediate material in a five-in-one thermal device for reaction to obtain clinker and sulfur-containing flue gas, grinding the clinker and the mixed material to prepare cement, and preparing sulfuric acid from the sulfur-containing flue gas. According to the invention, the processes of raw material preheating, gypsum crystal water removal, reduction desulfurization, clinker calcination and cooling are combined and realized in one set of device; the integrated equipment is compact in arrangement, main equipment does not need to rotate, multiple sets of equipment can be easily arranged in parallel under the condition of saving power, the occupied area of unit productivity is small, and the investment is saved; the method also has the advantages of direct waste heat utilization, small heat loss, high reduction rate and low reduction temperature.
本发明属于工业副产物综合处理技术领域，具体公开了一种工业副产石膏制取硫酸联产水泥熟料的方法及装置。本发明公开的工艺为先将工业副产石膏、还原剂、辅料混合研磨，得到生料；然后将生料进行成型造粒，得到中间物料；再将中间物料置于五合一热工装置中进行反应，得到熟料和含硫烟气，熟料与混合材研磨制备水泥，含硫烟气制备硫酸。本发明将原料预热、石膏脱结晶水、还原脱硫、熟料煅烧、冷却工序合并在一套装置内实现；一体化设备布置紧凑，主体设备无需转动，节约动力的情况下也易于并联布置多套设备，单位产能占地小、投资省；本发明还存在余热利用直接、热损失小、还原速率高、还原温度低的优势。
Method and device for preparing sulfuric acid and co-producing cement clinker from industrial byproduct gypsum
The invention belongs to the technical field of comprehensive treatment of industrial by-products, and particularly discloses a method and a device for preparing sulfuric acid and co-producing cement clinker from industrial by-product gypsum. The process disclosed by the invention comprises the following steps: firstly, mixing and grinding the industrial byproduct gypsum, a reducing agent and an auxiliary material to obtain a raw material; then molding and granulating the raw material to obtain an intermediate material; placing the intermediate material in a five-in-one thermal device for reaction to obtain clinker and sulfur-containing flue gas, grinding the clinker and the mixed material to prepare cement, and preparing sulfuric acid from the sulfur-containing flue gas. According to the invention, the processes of raw material preheating, gypsum crystal water removal, reduction desulfurization, clinker calcination and cooling are combined and realized in one set of device; the integrated equipment is compact in arrangement, main equipment does not need to rotate, multiple sets of equipment can be easily arranged in parallel under the condition of saving power, the occupied area of unit productivity is small, and the investment is saved; the method also has the advantages of direct waste heat utilization, small heat loss, high reduction rate and low reduction temperature.
本发明属于工业副产物综合处理技术领域，具体公开了一种工业副产石膏制取硫酸联产水泥熟料的方法及装置。本发明公开的工艺为先将工业副产石膏、还原剂、辅料混合研磨，得到生料；然后将生料进行成型造粒，得到中间物料；再将中间物料置于五合一热工装置中进行反应，得到熟料和含硫烟气，熟料与混合材研磨制备水泥，含硫烟气制备硫酸。本发明将原料预热、石膏脱结晶水、还原脱硫、熟料煅烧、冷却工序合并在一套装置内实现；一体化设备布置紧凑，主体设备无需转动，节约动力的情况下也易于并联布置多套设备，单位产能占地小、投资省；本发明还存在余热利用直接、热损失小、还原速率高、还原温度低的优势。
Method and device for preparing sulfuric acid and co-producing cement clinker from industrial byproduct gypsum
一种工业副产石膏制取硫酸联产水泥熟料的方法及装置
MIN JIANGNING (author)
2022-09-20
Patent
Electronic Resource
Chinese
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