Hegang Coal Preparation Plant of middling coal Mudanjiang Coking Co., Ltd
Type: Coking coal preparation plant
Scale: 0.75Mt/a
Contracting mode: EPC general contracting, new construction projects
Process: The 50-0mm raw coal adopts the main process of "three product heavy medium cyclone coal selection without desliming, classification, and pressure feeding". The 0.5-0.25mm coal slurry adopts the coal slurry heavy medium separation process, and the -0.25mm coal slurry adopts the flotation process. Flotation clean coal is dehydrated and recovered using a combination of a screen settling centrifuge and a filter press. After the tail coal slurry is concentrated in a high-efficiency thickener, it is dehydrated and recovered using a horizontal settling filtration centrifugal dewatering machine and a filter press. The washing water is circulated in a closed loop, which is environmentally friendly and energy-saving.