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The installation method and support system of synchronous side expansion in fully mechanized mining face

A fully mechanized mining face and installation method technology, which is applied to mining equipment, earthwork drilling, mine roof support, etc., can solve the problems of unminable coal seams and waste of resources, so as to avoid empty top operations, save resources, and improve safety Effect

Active Publication Date: 2017-10-27
LIAONING XINFENG MINE IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, when installing the hydraulic support at the position of the cutout, the entire width of the cutout is excavated at one time, and no support device is used. It makes the coal seam above the entire cut eye unable to be mined, resulting in a huge waste of resources

Method used

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  • The installation method and support system of synchronous side expansion in fully mechanized mining face
  • The installation method and support system of synchronous side expansion in fully mechanized mining face
  • The installation method and support system of synchronous side expansion in fully mechanized mining face

Examples

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Effect test

Embodiment 1

[0047] Lay 600 or 900-gauge track in Huishun roadway, working face and Yunshun roadway; lay 2-meter-gauge track on the working face.

[0048] In the Yunshun roadway, use a crane to install the tail of the belt conveyor; install the nose of the loader and the bridge of the loader; install the crusher; install the middle slot and tail frame of the loader.

[0049] Install the end bracket at the end of the working surface.

[0050] Use a crane to install the rear scraper nose and transition slot, and install the front scraper nose and transition slot.

[0051] The crane moves to the return air triangle point.

[0052] Use the crane to assemble the lifting truck, and then use the lifting truck to install the middle slot of the rear scraper machine. After the installation is completed, withdraw the lifting truck.

[0053] Use a crane to install the four-corner road; hoist the hydraulic support to install the forklift, expand the hydraulic support to install the forklift, and inst...

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Abstract

The invention discloses a fully-mechanized mining face synchronous slope expansion and installation method and a supporting system. Firstly, a channel is dug in the length direction of a cut, and then slope expansion is performed in the dug channel in the width direction of the cut; during slope expansion, an excavator enters the position below the supporting system to perform tunneling operation. The supporting system comprises a front part and a rear part, the front part is a stacking type support, the support is provided with a base, four telescopic upright columns, a set of top beams and two sets of pushing jacks, the base is composed of three bottom plates which are connected into a whole through hinges, and the pushing jacks are installed in two box bodies; the front part and the rear part are connected through the pushing jacks. The fully-mechanized mining face synchronous slope expansion and installation method and the supporting system have the advantages that by means of the cut part slope expansion and supporting technology, a coal seam above a slope expansion part is explored through a roof caving method, and resources are saved; meanwhile, the supporting system is adopted, roof caving work is avoided, and safety is improved.

Description

technical field [0001] The invention relates to the field of coal mining equipment, in particular to a tunneling method and a supporting system. Background technique [0002] At present, there are mainly two methods of excavation in domestic coal mines: one is to use a roadheader to excavate; the other is to use the old-fashioned drilling and blasting method. When the two methods are excavated, most of the support methods are bolt support, and some support methods use metal hinged roof beams and single hydraulic props. [0003] The use of roadheaders for tunneling and bolt support is a method commonly used in key coal mines across the country. In the prior art, when installing the hydraulic support at the position of the cutout, the entire width of the cutout is excavated at one time, and no support device is used. Make the coal seam above the whole cut eye can not be mined, causing huge waste of resources. Contents of the invention [0004] In order to solve the above-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/01E21D9/06E21D23/04E21D23/06
Inventor 张希望薛庆生
Owner LIAONING XINFENG MINE IND GRP CO LTD
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