Coal and Gangue Underground Pneumatic Separation Effect Evaluation Influenced by Different Airflow Directions

Figure 1

Separation system of coal and gangue. High-pressure gasholder; air compressor; separation equipment; vibrating sieve; sieve plate; coal conveyor belt; conveyer belt for coal and gangue recognition; coal; gangue; (10, 11) materials conveyor belt; (a, b) high-pressure value array; control equipment; computer; image acquisition equipment; CCD camera; camera box; conveyor belt; coal conveyor belt; LED light array.