Goaf filling machine and filling method thereof in end-side mining

Abstract

The invention discloses a goaf filling machine for end-side mining and a filling method thereof, and relates to the technical field of gangue filling in coal mine goafs. The filling machine includes a crawler belt running part, a fuselage body, a control room, a hydraulic pump station, an upper push plate mechanism and a lower push plate mechanism. The invention discloses a goaf filling machine for end-side mining and a filling method thereof, which can fill roadways and large-section goafs after end-side mining in open-pit mines, realize automatic filling of goaf roadways, and can carry out filling materials Compaction and curing operations to ensure the filling rate of the filling material, improve the filling rate of the filling material to the top, enhance the filling effect, and effectively prevent problems such as uneven filling and roof sinking; at the same time, the filling machine has strong mobility and can be used with open-pit mines. Mining and other conveying and filling equipment are used together to further save filling costs and improve filling effects. It has strong innovation and wide practicability.

Description

technical field [0001] The invention relates to the technical field of gangue filling in goafs of coal mines, in particular to a goaf filling machine for end-side mining and a filling method thereof. Background technique [0002] A large amount of pressed coal is formed on the side of the open-pit mine after mining, and this part of the pressed coal is often a great waste of side resources because it cannot be recovered in a timely and effective manner. It is of great significance to increase the economic benefits of enterprises and reduce the damage to the ecological environment. Gangue is a derivative of open-pit coal mining. Filling with gangue and other materials is an effective way to control the goaf of open-pit mine roadways. After the goaf roadway is filled, it can effectively reduce the bearing capacity of the coal pillar, maintain the stability of the gob and slope, avoid waste of resources, and further safe and efficient mining of side-side pressure coal has impo...

AI Technical Summary

Problems solved by technology

[0005] However, in the above-mentioned prior art, only mining and filling are carried out for the mining area, and the filling effect is limited. There will still be a phenomenon of poor roofing rate at the top of the goaf, and high-intensity compaction operations cannot be performed, making it difficult to form effective filling. The filling rate is low, the filling effect is not good, and it is easy to cause the roof to sink. It is difficult to apply to the large-section goaf after the end-side mining of open-pit mines, and the end-side coal pillar resources cannot be recovered in a timely and effective manner, resulting in waste of resources.

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