Matching and integrated device for underground man-made concrete core pillar construction

Abstract

The invention provides a matching and integrated device for underground man-made concrete core pillar construction, and belongs to the technical field of mining engineering. The matching and integrated device for the underground man-made concrete core pillar construction comprises a material storing mine car, a material receiving frame, a feeding funnel, a recycling frame, a water injection pipe,an agitator, a discharge chute and a conveying pipeline. The material receiving frame is arranged between the material storing mine car and the feeding funnel, and dry material of the material storingmine car is poured into the feeding funnel with the help of the material receiving frame. The recycling frame is arranged between the feeding funnel and an inlet of the agitator and used for overflowing sizing agent in the stirring process of the agitator. The discharge chute is formed between an outlet of the agitator and the conveying pipeline and used for dumping the sizing agent after stirredinto the conveying pipeline. The matching and integrated device for the underground man-made concrete core pillar construction can realize an automated operation and reduce the labor intensity of workers, continuous material receiving operation is realized by the material receiving frame, the cost can be reduced by the recycling frame, and continuous output of the sizing agent is realized by thedischarge chute.

Description

technical field [0001] The invention relates to the technical field of mining engineering, in particular to a matching integrated device for underground artificial concrete pillar construction. Background technique [0002] In non-coal mining operations, the open-field mining method has always occupied an important position. The main feature of open-stop mining is that the ore block is divided into ore rooms and ore pillars. The goaf after the recovery of the mine room is supported by regular or irregular ore pillars, including top and bottom pillars, inter-pillars and independent point pillars. To limit the deformation of the roof and ensure the stability of the stope. [0003] The primary ore pillars left by the open-field method are generally recycled at the end of production. The disadvantages of this recycling method are high ore loss and dilution rates, unsafe working conditions for workers, etc., which eventually lead to a decline in the economic benefits of the mine...

AI Technical Summary

Problems solved by technology

[0005] At present, the method of constructing concrete pillars underground mainly depends on manpower, which is time-consuming and labor-intensive.

Due to the narrow and limited space for downhole operations, the actual use of mixers for slurry mixing operations is seldom

Even if the mixer is used underground, it is generally constructed by manual loading and unloading, which cannot realize the automation and integrated operation of concrete pillar construction. Under the working condition of load, part of the slurry in the mixing will overflow, which will increase the construction cost of the artificial concrete pillar

Overall, the current construction of artificial concrete pillars is labor-intensive and cannot be integrated and automated. At the same time, the loss of slurry will lead to an increase in construction costs

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