Filling device for controlling surface subsidence of coal mine

A technology of surface subsidence and filling device, which is applied to safety devices, filling materials, mining equipment, etc., can solve the problems of low filling efficiency, affecting filling reliability and thoroughness, etc.

Pending Publication Date: 2022-08-05
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current filling is generally carried out by means of ordinary high-pressure grouting, which is not efficient, and it is difficult to achieve all-round gap filling, which affects the reliability and thoroughness of filling.

Method used

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  • Filling device for controlling surface subsidence of coal mine
  • Filling device for controlling surface subsidence of coal mine
  • Filling device for controlling surface subsidence of coal mine

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Embodiment Construction

[0025] The following will be combined with the Figure 1-4 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] The present invention provides a filling device for controlling ground subsidence in a coal mine through improvement, which includes a filling machine base 1, a high-pressure filling pump group 10, a feeding and filling pump group 3, a first filling slurry tank 11, a second filling slurry tank 2 and Multiple groups of filling head assemblies 5, wherein the high-pressure filling pump group 10, the feeding and filling pump g...

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Abstract

The invention discloses a filling device for controlling surface subsidence of a coal mine, which can effectively ensure the filling effect and prevent subsidence, and can effectively realize filling of slurry at gaps by setting slurry with different viscosities or concentrations, and the slurry with high viscosity or concentration is supplemented and pressurized by using a rotary driving mechanism, so that the filling efficiency is improved. The slurry filling device can effectively pressurize slurry with small viscosity, improve the pressurizing capacity and the filling effect, and achieve effective filling of gaps.

Description

technical field [0001] The invention specifically relates to a filling device for controlling ground subsidence in a coal mine, and relates to the related field of filling equipment. Background technique [0002] At present, in the process of coal mining, with the mining of coal mines, goafs will occur underground, and if the surface above these goafs is not deep enough or supported by rock formations, etc., it will be prone to subsidence problems. Once subsidence occurs , it not only leads to the scrapping of coal mines, but also poses a greater threat to the safety of personal and property above and below ground. In this regard, it is necessary to fill these areas prone to subsidence in order to ensure the support of the surface above the goaf and prevent the problem of subsidence. The current filling is generally carried out by means of ordinary high-pressure grouting. This filling efficiency is not high, and it is difficult to achieve a full range of gap filling treatme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F15/00
CPCE21F15/00
Inventor 谭毅白二虎尹大伟敬小非孙琦范智海宋瑞涛张后全张玉江
Owner HENAN POLYTECHNIC UNIV
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