The filling station adopts HGBS160.15.710 type filling industrial pump produced by Feiyi Company. Using construction waste as the main filling material, the paste strip filling mining is completed.
The project uses cyclones for pre-classification of concentration tailings, separating coarse and fine tailings for different treatments. The coarse tailings are filtered to produce filter cakes, while the fine tailings are thickened through a thickener, ensuring the stability o..
The first full tailings paste backfill project in Hunan Province, uses a one-stage deep cone thickener process, combined with new cementitious materials independently developed by FENY.
Use the full tailings paste backfill process , with the filling station utilizing two deep cone thickeners, each with an meter diameter, and three sets of mixing and pumping systems (one set as backup). Each system has a capacity of 120 m³/h, total filling capacity of 360 m³/h.
For the high-altitude, high-concentration, and high-drop working conditions at the Yalong River Mine, FENY independently developed the HGBZ70.15.320G cone valve industrial pump. Through the use of large-diameter sliding valve parallel synchronous control and high-flow, high-back..
Using FENY's paste backfill system, several key technologies, including simultaneous mining and backfilling, have been achieved.
The designed mining methods mainly include the stage stopping followed by backfill method, and the upward stratified backfill method. The backfill station primarily consists of deep cone thickeners, cement silos, and mixing systems.
Phosphogypsum dihydrate, phosphogypsum semihydrate, phosphogypsum tailing and modifier are used as filling aggregate, the system filling capacity is 120m³/h, and the filling mass concentration is 70%.
Xiaoma Coal Mine uses FENY HGBS200.14.800 backfill pump for coal extraction and backfilling under villages. A surface station is established to pump the slurry to underground mined-out areas.The transport distance includes 30 meters of horizontal pipe, 120meters of vertical pipe..
The filling capacity of the system is 100m³/h, the slurry is thickened to 73% through the deep cone paste thickener, and the filling slurry is prepared by adding cement, and the conveying distance can reach 2000 meters.
Liudong Coal Mine has a serious issue with coal seams trapped beneath buildings, water bodies, and railways (or highways), with a coal volume of 24.892 million tons affected. Using the 5,000-meter single-stage pumping system developed by FENY, t
The tailings are pre-classified at the processing plant, with coarse particle size tailings entering the vertical sand silo and overflow tailings entering the deep cone thickener. This fundamentally addresses safety hazards in mined-out areas and, through backfill, maximizes the..
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