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以粉煤灰为主要原料,掺部分粘土及无烟煤混合成球,在1200～1300℃高温下烧结的粉煤灰陶粒是一种人造混凝土轻骨料。1964年,天津市硅酸盐制品厂在沈阳冶炼厂、原东北工业建筑设计院、天津市建筑科学研究所等单位配合下进行了粉煤灰陶粒的研制工作。1966年建成一生产车间,设计年产量为7万立米。迄今共生产陶粒20万立米,利用粉煤灰约20万吨,节约排灰用地200余亩和排灰处理费用60万元。一、粉煤灰陶粒的生产生产粉煤灰陶粒的原料主要有粉煤灰、粘土及无烟煤三种。1.粉煤灰:是电厂粉煤炉排出的湿灰。细度要求4900孔/厘米~2筛余量小于40%,在和其他原料混合前应烘干,使其含水率在15～20%之间。2.粘土:做成球的粘结剂,也是陶粒烧
With fly ash as the main raw material, mixed with some clay and anthracite mixed into balls, fly ash ceramsite sintering at high temperature of 1200 ~ 1300 °C is an artificial concrete lightweight aggregate. In 1964, Tianjin Silicate Products Factory carried out the research and development of fly ash ceramsite in cooperation with Shenyang Smeltery, former Northeast Industrial Design Institute, and Tianjin Institute of Building Science. In 1966, a production workshop was built with a designed annual output of 70,000 cubic meters. So far it has produced a total of 200,000 cubic meters of ceramics, using fly ash about 200,000 tons, saving more than 200 acres of ash land and ash handling costs 600,000 yuan. First, the production of fly ash ceramsite production of fly ash ceramsite raw materials are mainly fly ash, clay and anthracite three. 1. Fly ash: It is the wet ash discharged from power plant pulverized coal stoves. The fineness requirement of 4900 holes/cm~2 sieve is less than 40%, and should be dried before mixing with other raw materials to make the moisture content between 15~20%. 2. Clay: Binder made into balls, also burned with ceramic