According to the situation of CHINALCO Henan Branch

combined with ore discharge mechanics theory

similarity experiment and discrete element simulation technology

we deeply research discharge mechanism and main factors that influence ore flow in hopper in both macro and micro conditions. Discrete element simulation shows the dynamic process of mutual interaction between particles-particles

particles-walls. According to the results

we design a new internal vertical flow-aiding device

achieve a better effect in field experiment. New device not only greatly improves the flow capability of ore in hopper

solves the blocking

arching

stucking problems which troubled CHINALCO for several decades

optimizes the mechanical relationship between ore and hopper

reduces wall dynamic contact pressure

but also largely improves the discharge efficiency and safety factor and reduces the labor intensity.