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Forming method for retracting channel of fully mechanized coal mining face device with large dip angle and large mining height

A fully-mechanized mining face and retraction channel technology, which is applied to the formation of a fully-mechanized mining face with a large inclination angle and a large mining height. Problems such as low safety and high labor intensity of workers

Active Publication Date: 2017-04-26
四川川煤华荣能源有限责任公司
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Due to the large space required for the retraction channel, the time required for manual shipment is long, the labor intensity of the workers is high, the pedestrian passage and the shipping passage are separated by wooden boards, and the safety and work efficiency are low.

Method used

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  • Forming method for retracting channel of fully mechanized coal mining face device with large dip angle and large mining height
  • Forming method for retracting channel of fully mechanized coal mining face device with large dip angle and large mining height
  • Forming method for retracting channel of fully mechanized coal mining face device with large dip angle and large mining height

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] Such as Figure 1 ~ Figure 3 Shown, the steps of the present invention are:

[0028] S1. When the fully mechanized mining face reaches the stop line, the working face forms a positive inclination; the mining height a of the fully mechanized mining face is preferably controlled at 3.6m to 4.2m

[0029] S2. The upper drum a2 of the shearer and the lower drum a3 of the shearer cut coal along the roof from the lower side of the return airway a4 to the upper side of the transportation lane a5 in order from top to bottom. The working face forms a stepped coal b1. The coal cutting process The hydraulic support a1 is used to follow the roof protection side of the machine; the method adopted in this embodiment is to lag the upper drum a2 of the coal mining machine by about 5m to open the telescopic beam and the side protection of the hydraulic support a1...

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Abstract

The invention relates to a forming method for a retracting channel of a fully mechanized coal mining face device with large dip angle and large mining height and belongs to the technical field of coal mining. According to the invention, a working face is just bias arranged, a coal cutter can cut coal downward and upward on the basis of the channel height control, a hydraulic support serves as a temporary support and the hydraulic support, together with an anchor rope, an anchor rod and a rooting steel wire rope is used for jointly supporting a top plate, supporting in groups and mining the channel in groups, so that the forming method for the retracting channel of the fully mechanized coal mining device has the advantages of saving time and material, reducing labor intensity, increasing work efficiency, quickly and safely forming the channel and supplying a condition for the quick retracting of the fully mechanized coal mining face with large dip angle and large mining height. The forming method provided by the invention is convenient, safe, quick, stable and reliable.

Description

technical field [0001] The invention relates to a method for forming an equipment retraction channel in a fully mechanized mining face with a large inclination angle and a large mining height, which is especially suitable for a fully mechanized mining face with a large inclination angle and a large mining height, and belongs to the technical field of coal mining. Background technique [0002] At present, the retraction channel of fully mechanized mining equipment with large inclination angle and high mining height is excavated directly in front of the hydraulic support with large inclination angle and large mining height. The commonly used methods are mainly blasting operations, manual pounding, slipping and slipping, and supporting the roof in sequence Wait. Due to the large space required for the withdrawal channel, the time required for manual shipment is long, the labor intensity of the workers is high, and the pedestrian passage and the shipping passage are separated by...

Claims

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Application Information

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IPC IPC(8): E21F17/00E21C25/06E21D23/04E21D23/16
CPCE21C25/06E21D23/0427E21D23/16E21F17/00
Inventor 杨磷黄正平余波蒋仕柱
Owner 四川川煤华荣能源有限责任公司
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