A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention provides a method for processing waste phosphogypsum into plastering gypsum, a formula comprises: phosphogypsum, coal gangue or industrial breeze, bentonite or yellow clay, and the method comprises the following steps of: 1, crushing coal gangue or industrial breeze into powder with a particle size of 0.01-0.3; 2, putting the powder into a stirrer to be stirred uniformly, then adding12-14% of clear water, stirring the substances uniformly, and pressing the mixture into spheroid by using a ball press machine at a temperature of 2-45DEG C; 3, naturally air-drying the semi-finishedproduct pressed into the spheroid; 4, feeding the air-dried semi-finished product into a vertical environment-friendly calcining kiln, and performing calcining at 800-1100DEG C for 5-8h; and 5, additionally adding 30-40% of finished cement clinker or a coagulant aid into the calcined semi-finished mixture according to the total weight, stirring the substances uniformly, and preparing the productinto powder with fineness of 350g/cm<2> by using a ball mill, thereby obtaining the finished product. The preparation method is simple and reliable, waste raw materials are fully utilized, resources are saved, and the product cost is reduced.
本发明提供一种利用废料磷石膏加工为粉刷石膏的方法，配方：磷石膏、煤矸石或工业煤碴、彭润土或黄黏土，方法：1、将煤矸石或工业煤碴粉碎至颗粒为0.01～0.3的粉料；2、放入搅拌机内搅拌均匀，再加入12～14%清水搅拌均匀后，在温度2～45℃状态下用压球机压制为球状体；3、将压制为球状体的半成品自然风干；4、将风干后的半成品送入立式环保煅烧窑内在800～1100℃状态下煅烧5～8小时；5、将煅烧后的半成品混合料按总重量另添加30～40%的成品水泥熟料或助凝剂拌匀后，用球磨机制成粉状料，细度为比表面积350g/cm2，即为成品。本制备方法简单可靠，充分利用了废弃原料，有利节约资源和降低产品成本。
The invention provides a method for processing waste phosphogypsum into plastering gypsum, a formula comprises: phosphogypsum, coal gangue or industrial breeze, bentonite or yellow clay, and the method comprises the following steps of: 1, crushing coal gangue or industrial breeze into powder with a particle size of 0.01-0.3; 2, putting the powder into a stirrer to be stirred uniformly, then adding12-14% of clear water, stirring the substances uniformly, and pressing the mixture into spheroid by using a ball press machine at a temperature of 2-45DEG C; 3, naturally air-drying the semi-finishedproduct pressed into the spheroid; 4, feeding the air-dried semi-finished product into a vertical environment-friendly calcining kiln, and performing calcining at 800-1100DEG C for 5-8h; and 5, additionally adding 30-40% of finished cement clinker or a coagulant aid into the calcined semi-finished mixture according to the total weight, stirring the substances uniformly, and preparing the productinto powder with fineness of 350g/cm<2> by using a ball mill, thereby obtaining the finished product. The preparation method is simple and reliable, waste raw materials are fully utilized, resources are saved, and the product cost is reduced.
本发明提供一种利用废料磷石膏加工为粉刷石膏的方法，配方：磷石膏、煤矸石或工业煤碴、彭润土或黄黏土，方法：1、将煤矸石或工业煤碴粉碎至颗粒为0.01～0.3的粉料；2、放入搅拌机内搅拌均匀，再加入12～14%清水搅拌均匀后，在温度2～45℃状态下用压球机压制为球状体；3、将压制为球状体的半成品自然风干；4、将风干后的半成品送入立式环保煅烧窑内在800～1100℃状态下煅烧5～8小时；5、将煅烧后的半成品混合料按总重量另添加30～40%的成品水泥熟料或助凝剂拌匀后，用球磨机制成粉状料，细度为比表面积350g/cm2，即为成品。本制备方法简单可靠，充分利用了废弃原料，有利节约资源和降低产品成本。
Phosphogypsum-based light plastering gypsum and preparation method thereof
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