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Pneumatic gangue combined filling device and coal mining method

A backfilling device and backfilling coal mining technology, which is applied in the fields of backfill, safety device, ground mining, etc., can solve the problems of inability to realize the backfilling and mining of goafs, and achieve the advantages of reducing ground subsidence, simple filling method and fast filling speed. Effect

Pending Publication Date: 2019-08-16
SHANDONG DONGSHAN GUCHENG COAL MINE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Filling the goaf with gangue can reduce surface subsidence, realize gangue out of the well, and reduce the pressure of lifting and transportation. At present, the existing underground gangue filling technology cannot realize all goaf filling and mining

Method used

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  • Pneumatic gangue combined filling device and coal mining method
  • Pneumatic gangue combined filling device and coal mining method
  • Pneumatic gangue combined filling device and coal mining method

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Embodiment Construction

[0040] Embodiments of the technical solutions of the present application will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present application more clearly, and therefore are only examples, rather than limiting the protection scope of the present application.

[0041] like Figure 1-5As shown in , the gas-powered gangue 2 combined filling device includes track trough 15 (that is, the material transport roadway of the mining face), belt trough 16 (that is, the coal transport roadway of the mining face), and the mining face. A loader 9 and a coal transport belt 10 are installed on the trough 16, a gangue belt 7 is installed on the track trough 15, a support top plate 14 is fixedly installed on the top of the mining face through a bolt 13, and a support top plate 14 is installed below the support top plate 14. There is a hanging belt 3 connecting the track trough 15 an...

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Abstract

The invention relates to coal mining equipment and method which use a gangue filling method to manage a roof, in particular to a pneumatic gangue combined filling device and coal mining method. The pneumatic gangue combined filling device comprises a track gate road (a material conveying roadway of a stoping working face), a belt gate road (a coal conveying roadway of the stoping working face) andthe stoping working face; and the pneumatic gangue combined filling device is characterized in that a support roof is fixedly installed at the top of the stoping working face through anchor rods, a hanging belt is arranged below the support roof, wherein the head end and the tail end of the hanging belt are connected with the track gate road and the belt gate road, a plurality of hydraulic supports for a coal mine are installed on the front side of the hanging belt in a spaced mode, the hanging belt is fixed behind all the hydraulic supports for the coal mine, and high-pressure wind power devices for blowing gangue conveyed by the hanging belt into a goaf, of the working face, behind tail beams of the supports are each installed on the lower parts of the tail beams of all the hydraulic supports for the coal mine. The problem of full filling of the goaf is solved, the ground depression is reduced, and the lifting transportation pressure is relieved.

Description

technical field [0001] The application relates to coal mining equipment and a coal mining method for roof management by a gangue filling method, in particular to a pneumatic gangue combined filling device and a coal mining method. Background technique [0002] Coal gangue open-air discharge and surface subsidence damage are the main causes of environmental problems in coal mine production, and they are solid wastes that affect the production process of mines. Filling the goaf with gangue can reduce surface subsidence, realize gangue out of the well, and reduce the pressure of lifting and transportation. At present, the existing underground gangue filling technology cannot realize full filling and mining of the goaf. Contents of the invention [0003] In order to solve one of the above technical problems, this application provides a pneumatic waste rock combined filling device and coal mining method, which has fast filling speed, simple filling method, high filling rate, st...

Claims

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Application Information

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IPC IPC(8): E21F15/08E21F15/10E21C41/18
CPCE21F15/08E21F15/10E21C41/18
Inventor 伦庆忠王桂利徐国华段培溪郑州诸葛祥华尹成鑫王东京肖金杰林增金鹏赵厚玲
Owner SHANDONG DONGSHAN GUCHENG COAL MINE
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