The present invention discloses a mine exploitation, separation, filling and treatment exploitation method, including main sources of gangue on a small-volume gangue exploitation working face and gangue reducing measures; system layout, equipment and separation technology for coal gangue separation; system layout, equipment and production technology for filling synergistic caving type coal efficient stoping; pretreatment and pre-control measures for environmental influence before and after gangue filling; and design principle and design steps of the mine exploitation, separation, filling and treatment exploitation method. The method not only solves the problem of long-distance transportation of gangue, reduces the lifting cost of underground gangue and relieves the pressure of mine auxiliary lifting and ground coal washing plants, but also may effectively treat coal mine gangue, reduce the surface stacking area of coal gangue, reduce the damage to the ecological environment of a mine and protect an ecological environment. Furthermore, a gangue filling and coal efficient stope face has high single production efficiency, may meet the requirements of modern mines for production capacity, and application prospects are wide.

The present invention discloses a mine exploitation, separation, filling and treatment exploitation method, including main sources of gangue on a small-volume gangue exploitation working face and gangue reducing measures; system layout, equipment and separation technology for coal gangue separation; system layout, equipment and production technology for filling synergistic caving type coal efficient stoping; pretreatment and pre-control measures for environmental influence before and after gangue filling; and design principle and design steps of the mine exploitation, separation, filling and treatment exploitation method. The method not only solves the problem of long-distance transportation of gangue, reduces the lifting cost of underground gangue and relieves the pressure of mine auxiliary lifting and ground coal washing plants, but also may effectively treat coal mine gangue, reduce the surface stacking area of coal gangue, reduce the damage to the ecological environment of a mine and protect an ecological environment. Furthermore, a gangue filling and coal efficient stope face has high single production efficiency, may meet the requirements of modern mines for production capacity, and application prospects are wide.

A plug for a void in a mine to divert water having a rigid closed cell foam which fills the void. The rigid closed cell foam having a plurality of pipes disposed within the foam. The pipes distributed throughout the void. The pipes are positioned in the foam so the pipes are staggered in length vertically with respect to various heights in the void, and the pipes are positioned in the foam every 4 to 6 horizontally with respect to the void. Each pipe has a mixing stick. A method for diverting water from a void in a mine.

A plug for a void in a mine to divert water having a rigid closed cell foam which fills the void. The rigid closed cell foam having a plurality of pipes disposed within the foam. The pipes distributed throughout the void. The pipes are positioned in the foam so the pipes are staggered in length vertically with respect to various heights in the void, and the pipes are positioned in the foam every 4 to 6 horizontally with respect to the void. Each pipe has a mixing stick. A method for diverting water from a void in a mine.

A method for recovering room-mining coal pillars by solid filling in synergy with artificial pillars. Solid materials and cementing materials on the ground are conveyed through a feeding well and a pipeline to a room-and-pillar goaf, a plurality of artificial pillars is cast at an interval in a coal room area, and gangue is cast to fill other regions of the coal room using a gangue casting machine. Under joint support by the artificial pillars and the coal room filler, coal pillars are recovered using a continuous coal mining machine, artificial pillars are cast in the original coal pillar area after recovery, and gangue is cast to fill the original coal pillar area using the gangue casting machine. A system for recovering room-mining coal pillars by solid filling in synergy with artificial pillars mainly includes a material conveying system, a joint support system, and a coal pillar recovery system.

A method for recovering room-mining coal pillars by solid filling in synergy with artificial pillars. Solid materials and cementing materials on the ground are conveyed through a feeding well and a pipeline to a room-and-pillar goaf, a plurality of artificial pillars is cast at an interval in a coal room area, and gangue is cast to fill other regions of the coal room using a gangue casting machine. Under joint support by the artificial pillars and the coal room filler, coal pillars are recovered using a continuous coal mining machine, artificial pillars are cast in the original coal pillar area after recovery, and gangue is cast to fill the original coal pillar area using the gangue casting machine. A system for recovering room-mining coal pillars by solid filling in synergy with artificial pillars mainly includes a material conveying system, a joint support system, and a coal pillar recovery system.

A plug for a void in a mine to divert water having a rigid closed cell foam which fills the void. The rigid closed cell foam having a plurality of pipes disposed within the foam. The pipes distributed throughout the void. The pipes are positioned in the foam so the pipes are staggered in length vertically with respect to various heights in the void, and the pipes are positioned in the foam every 4 to 6 horizontally with respect to the void. Each pipe has a mixing stick. A method for diverting water from a void in a mine.

A plug for a void in a mine to divert water having a rigid closed cell foam which fills the void. The rigid closed cell foam having a plurality of pipes disposed within the foam. The pipes distributed throughout the void. The pipes are positioned in the foam so the pipes are staggered in length vertically with respect to various heights in the void, and the pipes are positioned in the foam every 4 to 6 horizontally with respect to the void. Each pipe has a mixing stick. A method for diverting water from a void in a mine.

An inclined shaft continuous feeding system for solid backfilling materials includes a surface loading system, an inclined shaft transportation system, and a downhole unloading system. The inclined shaft transportation system is arranged between the surface loading system and the underground unloading system. The inclined shaft transportation system includes a bottom unloading dumper, support guide wheels, a guide rail, a drive wheel, a reverse wheel, and a traction steel wire rope configured between the drive wheel and the reverse wheel. The present invention can realize a steady, continuous and efficient transportation of the solid backfilling materials from the surface to down hole. Moreover, the material transportation system does not wear easily, has long service life and low material transportation cost.

An inclined shaft continuous feeding system for solid backfilling materials includes a surface loading system, an inclined shaft transportation system, and a downhole unloading system. The inclined shaft transportation system is arranged between the surface loading system and the underground unloading system. The inclined shaft transportation system includes a bottom unloading dumper, support guide wheels, a guide rail, a drive wheel, a reverse wheel, and a traction steel wire rope configured between the drive wheel and the reverse wheel. The present invention can realize a steady, continuous and efficient transportation of the solid backfilling materials from the surface to down hole. Moreover, the material transportation system does not wear easily, has long service life and low material transportation cost.