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Roof-contacted building block filling hydraulic bracket and use method thereof

A hydraulic support and block technology, which is applied in the direction of mine roof support, filling, earthwork drilling, etc., can solve the problems of high labor intensity, difficult work with machines, low filling efficiency, etc., and achieves obvious rock formation control effect and operation. Convenient and reduce the effect of handling work

Active Publication Date: 2019-07-12
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The filling bag needs to be hung on the hydraulic support for paste filling, and a "separation wall" needs to be set up between the filling area and the unfilled area. The filling efficiency is low and it is difficult to follow the machine.
The general block filling method needs to make blocks in a specific chamber, and then transport them to the filling site for filling. The labor intensity of workers is high and the efficiency is low.

Method used

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  • Roof-contacted building block filling hydraulic bracket and use method thereof
  • Roof-contacted building block filling hydraulic bracket and use method thereof
  • Roof-contacted building block filling hydraulic bracket and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a jacking block filling hydraulic support, including a support body; the support body includes a front roof beam 1, a rear roof beam 2 hinged with the front roof beam, and a The base 3, the front column 4 whose two ends are respectively hinged on the front roof beam 1 and the base 3, the rear column 5 whose two ends are respectively hinged on the rear roof beam 2 and the base 3, and the front column 4 and the rear column 5 are arranged between The four-bar linkage mechanism 6 is provided with a telescopic beam 7 at the tail of the rear top beam 2, and the telescopic beam jack 8 inside the telescopic beam 7 protrudes from the telescopic beam 7 to connect with the rear top beam 2, and a filling and pouring mold 9 is provided below the telescopic beam 7 The filling and pouring mold 9 includes an upper mold 9.1 located below the telescopic beam 7 and a lower mold 9.2 slidingly connected with the upper mold 9.1; both the upper mold 9.1 and the lower m...

Embodiment 2

[0034] This embodiment provides a method for using the roof block filling hydraulic support described in Embodiment 1, which includes the following steps:

[0035] S1, after the cut hole layout of the working face is completed, install the roof block filling hydraulic support, put the filling casting mold 9 close to the coal wall, and the telescopic beam 7 is in the retracted state (that is, the telescopic beam 7 is retracted into the top beam 2 at this time) , the mold height adjustment device swings upwards to drive the upper mold 9.1 to forcibly connect with the top plate to form a block pouring space;

[0036]S2, conveying the pouring material into the filling pouring mold 9 through the pouring pipeline, and performing the block pouring operation;

[0037] S3, after the blocks in the filling and pouring mold 9 are solidified to reach the preset strength, the mold pushing device pulls out the filling and pouring mold 9, moves and demoulds, and controls the moving step of th...

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Abstract

The invention provides a roof-contacted building block filling hydraulic bracket and a use method thereof, and belongs to the technical field of hydraulic brackets. The roof-contacted building block filling hydraulic bracket comprises a bracket body; the bracket body comprises a front top beam, a rear top beam, a base, a front column, a rear column and a four-connecting rod mechanism, wherein thetwo ends of the front column are separately hinged to the front top beam and the base, the two ends of the rear column are separately hinged to the rear top beam and the base, the four-connecting rodmechanism is arranged between the front column and the rear column, a telescopic beam is arranged at the tail of the rear top beam, a telescopic beam jack in the telescopic beam extends from the telescopic beam and the rear top beam, and a filling pouring mould is arranged below the telescopic beam; and a mould height-adjusting device and a mould pushing device are arranged between the filling pouring mould and the bracket body. A hydraulic bracket building block has short setting time, high strength, good roof-contacted effect and continuous building block, ''separating walls'' do not need tobe arranged artificially, the filling efficiency is high, machine-following operation can be realized, and safe and efficient mining is achieved.

Description

technical field [0001] The invention belongs to the technical field of hydraulic supports, and specifically discloses a roofing block filling hydraulic support and a method for using the same. Background technique [0002] With the increasing demand for coal resources in our country, the problem of "three undercuts" of coal pressing has become increasingly prominent. The filling coal mining method is a green mining method developed for the "three undercuts" of coal pressing, surface subsidence, coal gangue discharge and land resources. One of the coal technologies. The backfill mining method is a rock formation control method for filling the goaf of the coal mining face with filling materials. At present, the main backfill mining methods include bulk backfill, paste backfill and block backfill. Although the hydraulic support for bulk filling has a tamping mechanism to make the bulk compactly filled, the filling rate of the goaf is low due to the large void ratio of the bulk...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D23/04E21F15/02
CPCE21D23/04E21F15/02
Inventor 朱德福宋选民李昊城霍昱名杨小兵加麦生
Owner TAIYUAN UNIV OF TECH
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