The equipment selected for filling goaf in mines should have the characteristics of high efficiency, stability, safety, wear resistance, corrosion resistance, etc., and should be selected and configured according to the actual situation of the mine and the filling process requirements. At the same time, attention should be paid to the intelligence and automation level of equipment to improve the overall efficiency and effectiveness of filling operations. In practical applications, equipment adjustment and optimization should also be carried out according to specific situations to achieve the best filling effect. The specific equipment required has been listed by technical personnel from Hunan Heyu Heavy Industry, as follows

Filling preparation station: The filling preparation station is the core part of the mining filling system, responsible for mixing tailings, cement, water and other filling materials into filling slurry in a certain proportion. It usually includes mixing equipment, conveying equipment, measuring equipment, and control systems to ensure that the quality and quantity of the filling slurry meet the requirements.

Filling pipeline: The filling pipeline is a bridge connecting the filling preparation station and the mining area, responsible for transporting the prepared filling slurry to the mining area. It is necessary to have characteristics such as wear resistance, pressure resistance, and corrosion resistance to ensure that the filling slurry will not leak or block during transportation. When designing, attention should be paid to the pipeline layout not hindering the overall operation of the machine, and it should be easy to disassemble and maintain. The number of bends should be minimized, and the distance between two bends should be avoided from being close to each other to reduce material breakage and blockage. Meanwhile, horizontal pipelines should not be too long to avoid the formation of stagnant layers at the bottom of the pipe.


Filling drilling equipment: used to drill holes in mining areas and provide channels for the transportation of filling slurry. It usually includes drilling rigs, drill rods, drill bits, etc., which need to have efficient, stable, and safe characteristics to ensure the accuracy of drilling and the smooth transportation of filling slurry.

Filling pump: It is an important component of coal mine filling equipment, which can automatically transport filling materials to goaf through pipelines. The pump body is usually made of high-strength and wear-resistant materials to ensure the stability and durability of pumping.

Dehydration equipment: The filling dehydration equipment is used to dehydrate the filling slurry, reduce the moisture content in the filling slurry, and improve the strength and stability of the filling body. Including centrifuges, filter presses, etc.

The introduction of intelligent systems in filling operations, such as ERP management systems, remote control systems, etc., can improve work efficiency, reduce labor costs, and ensure the safety and stability of the work process.