COAL CLEANING AND GANGUE DISCHARGING SYSTEM USED FOR COAL CLEANING SYSTEM EMPLOYING AIR AND DRY SAND

摘要

A coal cleaning and gangue discharging system used for a mineral preparation system employing air and dry sand, comprising a separation chamber (10), an air distribution plate (11), an air blower (12), a gangue sieving system, a gangue pushing system, a gangue suction system and a gangue negative-pressure system. The air distribution plate is located in a bottom portion of the separation chamber and is used in cooperation with the air blower. The gangue sieving system is used in cooperation with the gangue pushing system. One end of the gangue suction system is connected to the gangue pushing system, and the other end thereof is in communication with the gangue negative-pressure system. The system enables convenient sieving, the equipment is not damaged easily, and the sieving efficiency is improved.