Drying method during coal washing
November.20,2024
The drying method during coal washing generally uses mechanical drying, that is, a coal dryer is used to achieve the purpose of reducing coal water content and improving quality. How to dry coal during coal washing? This article explains it in detail through the coal drying process diagram of the coal washing plant:
Coal drying machine
Coal drying equipment in the coal washing plant generally uses a rotary drum structure and a tube bundle structure, and adopts high-temperature hot air or low-temperature steam technology to quickly evaporate and gasify the moisture in the coal. The moisture content of the dried coal is about 10, which is convenient for direct combustion or blending, and the calorific value of the coal is increased. Its process flow: the wet coal is transported to the drum dryer by a conveyor, and under the turning of the uniformly distributed copying plate in the drum, it directly exchanges heat with the hot air or indirectly exchanges heat with the heat provided by the steam heating tube, and quickly evaporates and gasifies the moisture in the coal to achieve the purpose of heat and mass transfer of the coal.
