Apparatus and method for gas extraction through complex strata with pipe protection holes

A technology for extracting gas and complex strata, applied in drilling equipment and methods, gas discharge, safety devices, etc. cost saving effect

Active Publication Date: 2022-07-29
TAIYUAN UNIV OF TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problem of drilling goaf gas through complex gangue layers between short-distance coal seams, drilling and forming holes is difficult, the present invention provides a device and method for gas extraction through complex formations with pipe protection holes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Apparatus and method for gas extraction through complex strata with pipe protection holes
  • Apparatus and method for gas extraction through complex strata with pipe protection holes
  • Apparatus and method for gas extraction through complex strata with pipe protection holes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038]The utility model relates to a device for gas extraction through complex strata following a pipe and protecting a hole, comprising a traveling mechanism, a power input device, an angle adjustment mechanism, a center directional drilling assembly and an external hole protecting assembly, and a power input device and an angle adjustment mechanism are installed on the traveling mechanism. A central directional drilling assembly is installed on the angle adjustment mechanism, and the power input device drives the central directional drilling assembly. like Figure 5 , 6 As shown, the central directional drilling assembly includes a drill pipe 3, a pilot drill bit 30, an alloy drill bit 32, a guide head control assembly 29, a down-the-hole hammer 27 and a reducing adapter 28, and the front end of the drill pipe 3 is connected with the down-the-hole hammer 27 , the down-the-hole hammer 27 is connected with the guide head control assembly 29 through the reducing joint 28, the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to the technical field of coal mine safety, in particular to a device and a method for gas extraction through a complex stratum following a pipe protection hole. A power input device and an angle adjustment mechanism are installed on the traveling mechanism, and a center directional drilling assembly is installed on the angle adjustment mechanism. The power input device drives the center directional drilling assembly. The center directional drilling assembly includes drill rods, pilot bits, alloy drill bits, and guide bits. The control assembly, the DTH hammer and the reducing adapter, the front end of the drill pipe is connected with the DTH hammer, the DTH hammer is connected with the guide head control assembly through the reducing adapter, the front end of the guide head control assembly is connected with the pilot bit, and the inside of the pilot bit is An alloy drill bit is provided, the outer hole guard assembly includes a heel tube sleeved on the outside of the drill pipe, the front end of the heel tube is fixed with a tube shoe, the tube shoe is sleeved at the front end of the guide head control assembly, and the inner diameter of the tube shoe is smaller than the middle section of the guide head control assembly maximum diameter.

Description

technical field [0001] The invention relates to the technical field of coal mine safety, in particular to a device and a method for gas extraction through a complex stratum following a pipe protection hole. Background technique [0002] Coal mine gas is the natural enemy of coal mine safety production. It will not only cause coal mine operators to suffocate and damage human physical and mental health, but also cause coal and gas outbursts, gas and coal dust explosions, and cause mine destruction. main source of pollution. In addition, gas is also an unconventional, high-quality clean energy. [0003] During the mining process of the working face, the gas exceeding the limit often occurs, especially near the upper corner. In addition, because the mine adopts the mining method of fully mechanized top coal caving, there is a lot of residual coal in the goaf, and the residual coal will A large amount of gas is released, and at the same time, the adjacent coal seams, unmined la...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): E21B7/20E21B43/00E21F7/00E21B7/02E21B15/04E21B4/20E21B4/14E21B19/086
CPCE21B7/208E21B43/006E21F7/00E21B7/02E21B7/022E21B15/04E21B4/20E21B4/14E21B19/086
Inventor 张兴华郭歌曾伟郑确张露露
Owner TAIYUAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap