Process and practice of calcining mullite from 200000 t/a coal bearing associated kaolinite
Coal bearing associated kaolinite is a coal mine associated mineral,in which the high-quality kaolinite SiO2/Al2O3 material ratio is close to the theoretical value of 2.0.After calcination,it can be used to produce mullite precision casting sand.This project in-troduces the process and practice of calcining mullite from 200000 t/a coal bearing associated kaolinite.The technology and equipment are advanced,using preheaters,grate coolers and other advanced technologies and equipment.The calcined products have stable per-formance and quality,low energy consumption,and have become the largest and most technologically advanced mullite production line in China and even Asia.
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