Coal mine goaf filling and grouting equipment

Abstract

The invention discloses coal mine goaf filling and grouting equipment. The coal mine goaf filling and grouting equipment comprises a support drilling mechanism, a water pumping detection mechanism, asoil excavating mechanism, a soil pressing mechanism and a pressurizing and grouting mechanism; the support drilling mechanism comprises a bottom frame, universal wheels, a controller, a sliding frame, a rack groove, a driving motor and a pushing handle frame; the universal wheels are fixedly installed on the lower end face of the bottom frame; the lower end face of the controller is fixedly connected with the upper end face of the bottom frame; the rack groove is fixedly formed in the upper end face of the bottom frame; a gear on the sliding frame is meshed with the rack in the groove in theside end face of the rack groove; the driving motor is fixedly installed on the side end face of the sliding frame, and a motor shaft of the driving motor is fixedly connected with the gear on the sliding frame; the pushing handle frame is fixedly installed on the rear end face of the rack groove so as to drive a drilling motor to move downwards; the water pumping detection mechanism is fixedly installed on the upper end face of the sliding frame; the soil excavating mechanism and the pressurizing and grouting mechanism are fixedly installed on the upper end face of the bottom frame; and the soil pressing mechanism is fixedly installed on a baffle on the upper end face of the bottom frame.

Description

technical field [0001] The invention relates to the technical field of coal mine goaf filling equipment, in particular to a coal mine goaf filling and grouting equipment. Background technique [0002] The hazards of underground mined-out areas to mining projects are significant and cumulatively superimposed, mainly reflected in two aspects: First, the deformation and destruction of ore pillars in the mined-out area, large-scale caving of the roof, and rock movement cause surface subsidence, cracking, and subsidence , damage the ground environment and affect open-pit operations, and what is more serious is the casualties and equipment damage caused by the high-speed air waves and shock waves of the sudden collapse of the goaf; on the other hand, during the mining process, the surrounding rock of the goaf is shaken The impact leads to the development of cracks in the rock mass, and even penetrates the surface or connects to the accumulated water in old kilns, causing water inr...

AI Technical Summary

Problems solved by technology

[0002] The hazards of underground mined-out areas to mining projects are significant and cumulatively superimposed, mainly reflected in two aspects: First, the deformation and destruction of ore pillars in the mined-out area, large-scale caving of the roof, and rock movement cause surface subsidence, cracking, and subsidence , damage the ground environment and affect open-pit operations, and what is more serious is the casualties and equipment damage caused by the high-speed air waves and shock waves of the sudden collapse of the goaf; on the other hand, during the mining process, the surrounding rock of the goaf is shaken The impact leads to the development of cracks in the rock mass, and even penetrates the surface or connects to the accumulated water in old kilns, causing water inrush accidents, submerging tunnels and working faces, and causing huge economic losses;

[0003] Usually the coal mine goaf that will be left after the coal mining operation is completed, if the coal mine goaf is not reinforced or backfilled, it will cause subsidence after a long time, resulting in ground subsidence, forming a subsidence pit on the surface, and forming water accumulation , causing farmland to be uncultivable; therefore, a coal mine goaf filling and grouting equipment is needed, which can fill the goaf with grouting, effectively prevent the subsidence of the goaf, and ensure the utilization rate of the farmland. The accumulated water in the goaf can be pumped out, effectively ensuring the efficient filling of the goaf, and it can also compact the pit dug at the upper end of the goaf to ensure the smoothness of the road surface

Images