▎ 摘　　要

NOVELTY - The coal gangue filter system comprises a conveying device (1) for conveying mixed material of coal block and waste rock. A microwave heating device (2) is arranged above the conveying equipment for heating the mixed materials of coal blocks and waste rocks by microwave. The microwave heating equipment is provided with a feeding port and a discharging port. The feeding port is connected with a feed channel (3). The discharge port is communicated with a discharge channel (4). The feeding channel is equipped with a first microwave inhibiting assembly for absorbing and reflecting the microwave leakage in the feeding port leakage. The discharge channel is provided a second microwave assembly for adsorbing and reflecting a microwave in the discharge channel leakage. USE - Gangue filter system for preventing microwave leakage of coal block and gangue mixed in coal block for use in coal plant. Can also be used in industrial production coal. ADVANTAGE - The system prevents microwave leakage at the feeding and discharging end of the microwave heating device, so as to protect the surrounding electric appliance from microwave interference, and prevents the energy loss. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the gangue filter system. Conveying device (1) Microwave heating device (2) Feeding channel (3) Discharging passage (4) First microwave suppression curtain (5) Second microwave suppression curtain (6) Graphene layer (7) Infrared camera (8) Constant temperature heating thermistor (10) Heating chamber (201) Microwave emitter (202)