Non-coal backfill system

Feijia's unique key technologies are used, including single-stage deep cone dense and homogenizing mixing, high-flow and high-pressure pump feeding, Remote anti-clogging transportation on pipes / deep wells with reduced pressure, intelligent "one-click load" control, prefabricated walls made of metal structures, as well as the development of new materials characterized by environmental friendliness, high efficiency and low cost. This significantly increases the use of mineral resources and the level of internal security. The total production rate increases by more than 90%, the life of the mines is extended; Problems such as the demolition of empty areas, the accumulation of solid waste and environmental pollution are fully addressed.