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Filling technology for carrying out refilling on goaf

A technology for goaf and filling work, which is applied in the direction of filling, mining equipment, earthwork drilling and mining, etc. It can solve the problems of gaps and low compactness in the filling area, and achieve spontaneous combustion, high compactness, and zero The effect of disaster mining

Inactive Publication Date: 2015-07-22
XINWEN MINING GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, an object of the present invention is to propose a filling process for backfilling goafs, so as to solve the problem that there are gaps and low compactness in the filling area in the prior art

Method used

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  • Filling technology for carrying out refilling on goaf
  • Filling technology for carrying out refilling on goaf

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Embodiment Construction

[0018] The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims. These embodiments of the present invention may be referred to herein, individually or collectively, by the term "invention", which is for convenience only and is not intended to automatically limit the application if in fact more than one invention is disclosed The scope is any individual invention or inventive concept.

[0019] Now illustrate in conjunction with accompanying drawing, figure 1 Shown is a flow chart...

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Abstract

The invention provides a filling technology for carrying out refilling on a goaf. The filling technology comprises the steps that a filling working face level is arranged in a double-roadway mode, one roadway is a similar-to-pasty-fluid body conveying roadway, and the other roadway is a gangue conveying roadway; and through the gangue conveying roadway, the goaf is subjected to gangue filling, and then a similar-to-pasty-fluid body is arranged in a gap between gangues in the goaf in a filling mode through the similar-to-pasty-fluid body conveying roadway. After the technology is used for carrying out filling, the filling compactness in the goaf is high, the obvious problems such as goaf natural fire generating, cavitating water, bottom plate confined water and harmful gas are effectively solved, and non-disaster exploiting is achieved.

Description

technical field [0001] The invention belongs to the technical field of filling, and in particular relates to a filling process for backfilling goafs. Background technique [0002] Mine goaf is the empty area left below the surface after mining. If it is not filled, it will cause ground subsidence and bring danger. Traditionally, mine gob filling uses tailings as the main filling material, and cement as filling cementing auxiliary materials. The tailings slurry contains water, so the concentration adjustment of the filling slurry is complicated. [0003] For coal mining goaf, backfilling is rarely done at present, so the goaf left after coal mining has become a dangerous source for coal production areas, and ground subsidence has occurred in many coal mining areas in my country. Therefore, it is imperative to fill the coal mine goaf. However, the traditional filling process is no longer suitable for the filling of goafs in coal mines. [0004] In the prior art, there are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F15/06
CPCE21F15/00E21F13/00E21F15/06E21F15/08
Inventor 张文张殿振颜磊张传恕孙焕磊王涛
Owner XINWEN MINING GROUP