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Telescopic gas extraction pipeline device

A gas pipe and telescopic technology, which is applied in the field of telescopic gas pumping pipeline devices, can solve the problems of gas exceeding the limit, and achieve the effect of saving equipment and money

Pending Publication Date: 2021-04-20
BEIJING TIANDI HUATAI MINING MANAGEMENT CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the buried pipe in the upper corner has higher requirements on the depth and position of the buried pipe, and the position error will cause the gas to exceed the limit

Method used

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  • Telescopic gas extraction pipeline device
  • Telescopic gas extraction pipeline device
  • Telescopic gas extraction pipeline device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033]Such asFigure 1 to 5, A telescopic tuning pipeline device comprising a pumping drag tube 10, a telescopic pipe 20, and a base tube 30.

[0034]The pumping drag 10 is a steel pipe of 377 x 6 (outer diameter 377 mm, wall thickness, and a front end of the pumping drag tube, i.e., a plurality of vent hole 11 is provided.

[0035]The telescoping pipe 20 is a steel pipe of 355 × 6 (outer diameter 355 mm, wall thickness 6 mm), and the outer diameter of the telescoping pipe is provided with a stop flange 21, and the stop flange is disposed in the middle of the telescoping pipe.

[0036]The base tube 30 is the same as the specification of the pumping drag, and is also a steel pipe of 377 × 6 (377 mm, wall thickness of 6 mm). The inner diameter D2 of the base tube is the same as the inner diameter D3 of the pumping drag.

[0037]The rear end of the base tube is provided with a connection flange 31, and the base tube is attached to the gasteat pipe connection through the connection flange 31. The ga...

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PUM

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Abstract

The invention relates to a telescopic gas extraction pipeline device. The telescopic gas extraction pipeline device comprises an air extraction dragging pipe, a telescopic connecting pipe and a base pipe, wherein the two ends of the telescopic connecting pipe are embedded in the air extraction dragging pipe and the base pipe respectively; the air extraction dragging pipe moves relative to the base pipe in the axial direction; and the telescopic connecting pipe moves relative to the air extraction dragging pipe and the base pipe in the axial direction. The telescopic gas extraction pipeline device has the advantages that the air extraction dragging pipe capable of moving in a telescopic mode is adopted, the pipe inserting position can be adjusted, the optimal extraction position of the air extraction dragging pipe is kept, the upper corner gas extraction effect is guaranteed, the air extraction dragging pipe is prevented from being buried in a goaf and can be continuously and repeatedly used, and equipment and funds are saved.

Description

Technical field[0001]The present invention relates to coal mine safety facilities, and more particularly to a telescopic piral pipeline device.Background technique[0002]The integrated working face is adopted "U" type ventilation, and the wind flow is easy to form eddy current in the corner position of the working surface, resulting in the accumulation of the upper corner gas, so the pumping tip will be arranged in the upper corner position, and the gas pump is used. The negative pressure pulls the gas gases in the upper corner, reaches the purpose of governance in the corner of the corner; with the advancement of the comprehensive work surface, the pumping drag is buried inside the hollow area, causing the waste of materials, causing gas pumping The effect is poor, resulting in the increase in Gas in the form of comprehensive columns, which brings safety hazards for coal mine safety production.[0003]The upper corner gas governance is the focus and difficulty of coal mine gas governa...

Claims

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Application Information

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IPC IPC(8): E21F7/00E21F17/02
Inventor 吴新华宋伟吕会庆董浩郭应张鹏马鹏余杰刘然然仲满川赛尔克别克·达汗
Owner BEIJING TIANDI HUATAI MINING MANAGEMENT CO LTD
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