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A method of coal mining and gangue filling

A technology for gangue and coal shearer, which is applied in the fields of backfill, mining equipment, earthwork drilling, etc., can solve the problems affecting coal mining construction method and backfill construction method, low efficiency, etc., achieves good roof support effect, and reduces pull frame time, the effect of improving coal mining efficiency

Inactive Publication Date: 2015-08-26
山东万祥矿业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the existing gangue filling support structure, it affects the coal mining construction method and filling construction method, so that the efficiency of mining with gangue for coal is not high

Method used

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  • A method of coal mining and gangue filling

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Embodiment Construction

[0014] Embodiments are further described below with reference to the accompanying drawings.

[0015] One is to improve the existing filling bracket:

[0016] from figure 1 It can be seen that the filling bracket used for filling in the present invention is made up of base 9, hydraulic column 3, top beam 4, front swing beam 5, rear tail beam 2 and hydraulic pushing rod 8, and the hydraulic pushing rod 8 is designed to be 1.2 meters. The telescopic beam 13 is added on the rear tail beam 2, and the telescopic beam 13 is moved by the telescopic hydraulic cylinder 1, and the pushing stroke is 800 mm. A telescopic baffle 11 is installed at the rear of the base 9 of the filling bracket, and the baffle 11 is hinged with the base 9. , it can swing back and forth through the swing hydraulic cylinder 10, with a swing angle of ±12°;

[0017] The second is that when the coal shearer cuts the coal seam 6, it cuts coal in two directions along the top and bottom plates, enters two knives at...

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Abstract

The invention discloses a method for coal extracting and gangue filling. At first, a hydraulic push rod of an existing filling support is designed to be 1.2 meters, a flexible beam is additionally arranged on a tail beam of the filling support and pushes through a flexible hydraulic cylinder, and a flexible gangue blocking plate is installed on the rear part of a base of the filling support and can swing back and forth through a swing hydraulic cylinder; and a coal mining machine mines bidirectionally along a top bottom plate during the coal mining, after the coal mining machine mines for two circulations, and the filling support is pulled to fill the gangue and is pulled for one time after every two coal mining circulations until the coal mining and filling work is completed. After the filling support is improved, the filling support is pulled for one time after every two coal mining circulations, so that the support pulling time is reduced, and the coal mining efficiency is increased; and after the flexible gangue blocking plate is installed on the rear part of the base of the filling support, a function of a tamping mechanism is played, the goaf filling rate is increased from 75% to 90%, and a good top plate supporting effect is obtained.

Description

Technical field: [0001] The invention relates to coal mine gangue filling technology. Background technique [0002] Gangue filling is a commonly used technology in coal mines. When filling gangue, the support is generally filled; the filling support is generally composed of a base, a hydraulic column, a top beam, a front swing beam, a rear tail beam and a hydraulic push rod. The stroke of the hydraulic pushing rod is only 600mm. Due to the existing gangue filling support structure, the coal mining construction method and the filling construction method are affected, so that the efficiency of exchanging gangue for coal mining is not high. Contents of the invention [0003] In order to improve the mining efficiency of exchanging gangue for coal, the invention proposes a method of coal mining and gangue filling improved on the filling support. [0004] The technical solution is a method for coal mining and gangue filling, which is characterized as follows: [0005] One is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D23/04E21D23/16E21F15/10
Inventor 孟昭增尚传峰李庆福
Owner 山东万祥矿业有限公司
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