National energy Mengxi Coal Chemical Co., Ltd. chessboard well coal mine

Case Type

EPC general contract project for coal gangue paste filling

Project Description

After crushing and screening, coal gangue is used as the main filling aggregate, and fly ash and cement are added at the same time. The filling system capacity is 200m³/h, and the annual filling and mining capacity reaches 600,000 tons.

Project Outcome

Prevent ground collapse, protect village buildings and surface safety, but also avoid coal gangue ground accumulation, protect the ecological environment of the mining area.