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Steeply inclined coal seam fully-mechanized mining method and supporting facilities

A technology of steep incline and coal seam, applied in mining equipment, ground mining, earthwork drilling, etc., can solve problems such as the sliding of supporting facilities, and achieve the effect of coal mining safety, simple coal mining method, and no hidden danger of sliding.

Inactive Publication Date: 2013-05-01
秦玄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second object of the present invention is to provide a three-machine supporting facility for comprehensive mechanized coal mining in steeply inclined coal seams, including a coal cutter, a scraper conveyor and a hydraulic support, so as to overcome the existing supporting facilities when they are used for fully mechanized mining. serious downside flaw

Method used

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  • Steeply inclined coal seam fully-mechanized mining method and supporting facilities
  • Steeply inclined coal seam fully-mechanized mining method and supporting facilities
  • Steeply inclined coal seam fully-mechanized mining method and supporting facilities

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1 see figure 1 , figure 2 , image 3 , a method for fully mechanized mining of steeply inclined coal seams, comprising the following steps:

[0036] a. Preparation: Excavate two parallel return air chute 1 and transport chute 2 at the upper and lower ends of the steeply inclined coal seam, and dig a cut hole between the return air chute 1 and the transport chute 2 to form a fully mechanized mining In the working face, at least one groove 3 extending along the advancing direction of the working face is formed on the coal seam floor 8 of the fully mechanized mining face; a scraper conveyor 4 controlled by an electric control system and a plurality of first A support system 5 composed of a hydraulic support 51 and at least one second hydraulic support 52, the scraper conveyor 4 and the second hydraulic support 52 can use the groove 3 to prevent sliding, and the first hydraulic support 52 below the second The hydraulic support 51 is connected and fixed as one wi...

Embodiment 2

[0043] Example 2 see figure 1 , Figure 4 , Figure 5 , Image 6 , a scraper conveyor, comprising a base 41 and a control system, at least one prism 411 protrudes from the lower support surface of the base 41, and the prism 411 extends along the advancing direction of the scraper conveyor on the fully mechanized mining face .

[0044] The prism 411 is an arc prism.

Embodiment 3

[0045] Example 3 see figure 1 , Figure 4 , a coal cutter, comprising a machine base, an upper cutting head 61, a lower cutting head 62, and a control system, at least one prism protrudes from the lower supporting surface of the machine base, and the prism is formed along the coal cutter on the fully mechanized mining face. The propulsion direction extends; the control system is also used to control the coal cutter when cutting coal to the set position, the lower cutting head 62 of the coal cutter cuts the coal seam floor 8 below the coal seam floor, so that the coal seam floor 8 forms a A groove extending along the coal cutting process in the advancing direction of the working face.

[0046] The prism is an arc prism.

[0047] The frame in this embodiment utilizes the frame 41 of the scraper conveyor in Embodiment 2, thereby saving the frame of the coal cutter.

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PUM

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Abstract

The invention discloses a steeply inclined coal seam fully-mechanized mining method and supporting facilities. The fully-mechanized mining method comprises the work steps of preparation, coal mining, support moving, pushing, coal conveying and the like. In preparation work, firstly, a channel is formed in the seam floor in a working face, and then a scrapping plate conveyor and a supporting system are arranged in the working face, wherein the supporting system comprises a plurality of first hydraulic supports and at least one second hydraulic support; the scrapping plate conveyor and the second hydraulic support can be prevented from sliding down in virtue of the channel; the first hydraulic supports under the second hydraulic support are connected and fixed with the second hydraulic support into a whole; a coal cutter is arranged; and an extending segment of the channel is formed in the coal cutting process or after coal cutting. Convex ribs in embedded connection with the channel are arranged on the lower supporting surfaces of the base frames of the scrapping plate conveyor and the second hydraulic support among the supporting facilities; and the coal cutter and the scrapping plate conveyor share the same base frame. The invention has the benefits that the coal mining method is simple, anti-sliding conditions are created for the facilities, the supporting facilities are free from down-sliding potential hazards, and the coal mining is safe and efficient.

Description

technical field [0001] The invention relates to comprehensive mechanized coal mining technology in underground coal mines, in particular to a fully mechanized mining method for steeply inclined coal seams and supporting facilities. Background technique [0002] Steeply inclined coal seam refers to a coal seam with an inclination angle greater than 45°, which has the characteristics of wide distribution in my country, complex occurrence conditions, and difficult mining. Due to the backward mining technology and the large number of domestic mines. Therefore, in recent years, there have been many major accidents in our country. Due to the narrow mining space of the steeply inclined coal seam, the large inclination angle of the working space, the high risk of equipment slipping, and the potential threats such as coal mine gangue splashing, it is difficult for personnel to operate. At the same time, its coal seam structure is complex, with folds and faults, the operating enviro...

Claims

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Application Information

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IPC IPC(8): E21C41/16E21C25/06E21C35/00E21C35/24E21F13/06E21D23/04
Inventor 秦玄邹开科
Owner 秦玄