Zisheng Coal Mine of Huozhou Coal Electricity Group Zisheng Coal Industry Co., Ltd.

Case Type

Coal Gangue Gypsum Paste Backfill Equipment Case

Project Description

Zisheng coal mine uses gangue + cement + fly ash + water for paste backfill. Backfill system capacity 150 m³/h., conveying distance up to 2500 meters.

Project Outcome

The project has significant economic and environmental benefits.On the one hand,it puts overburden resources,recovers 300,000tons of coal more every year,and generates more than RMB 90million of income every year;on the other hand,it prevents ground subsidence,protects the safety of village buildings and the ground surface,and also avoids the accumulation of waste materials on the ground in the mining area,and protects the ecological environment of the mining area.