An open-pit end side pressure coal filling mining system

Abstract

The invention discloses an open-pit end-side pressure coal filling mining system, which includes automatic coal cutting for excavation, automatic pipe layout, closed road opening, automatic filling of pipelines, and automatic monitoring of full road. When the roadheader excavates and cuts coal, extend the mechanical arm to drag the filling pipeline forward, and the pipeline is automatically arranged at the bottom of one side of the roadway. In situ, the automatic pipe layout is realized; the monitoring pipeline is set on the flat plate corresponding to the filling roadway, and after the cemented filling material fills the roadway, a signal is sent through the monitoring pipeline, and the filling pump stops pumping slurry to the filling pipeline, thus completing Roadway filling, which realizes automatic monitoring of full roadway. This process combines the cemented filling coal mining process with the end-side tunneling coal mining process, and uses the unmanned filling face to mine the open-pit end-side pressed coal to realize automatic pipe layout and automatic monitoring of full lanes.

Description

technical field [0001] The invention belongs to the field of mine filling and mining technology, and in particular relates to an open-pit end side pressure coal filling mining system. Background technique [0002] Due to the high mining intensity and long mining time in some open-pit coal mines in my country, the coal resources that are easy to mine in the open-pit realm have basically been mined. However, the side slope of the mine pit occupies a large amount of coal resources. If it is abandoned, it will cause a serious waste of coal resources, which is not conducive to the sustainable development of coal mines, and at the same time causes the country to suffer major resource losses; and the remaining coal is exposed to oxygen for a long time. Weathering, It is prone to spontaneous combustion and poses a serious threat to the surrounding natural environment and village safety. [0003] Generally, the main method of recovering side slope coal pressure is to carry out end-s...

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Problems solved by technology

However, the side slope of the mine pit occupies a large amount of coal resources. If it is abandoned or not mined, it will cause a serious waste of coal resources, which is not conducive to the sustainable development of coal mines, and at the same time causes the country to suffer major resource losses; and the remaining coal is exposed to oxygen for a long time. It is prone to spontaneous combustion and poses a serious threat to the surrounding natural environment and village safety.

[0003] Generally, the main method of recovering side slope coal pressure is to carry out end-side mining, but when the roof is incomplete and the strength is not enough, it is easy to cause a large area of ​​the coal seam roof to collapse, thereby damaging the machine and endangering the safety of personnel; During the mining process, a large number of coal pillars need to be reserved to maintain mining safety, and the retention of coal pillars will affect the coal recovery rate, which is prone to natural fire disasters; and edge mining will lead to surface subsidence, making slope management difficult

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