Drilling and extracting integrated device

A drill pipe and drill bit technology, applied in the field of drilling and pumping integrated devices, can solve the problems of poor effect, complicated and slow operation process, affecting mining speed, etc., and achieve the effects of simple operation, high efficiency and reduction of mining cost.

Inactive Publication Date: 2014-07-23
HENAN POLYTECHNIC UNIV
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only is the operation process complex and slow, but the effect is not good, and it will also affect the overall mining speed

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
  • Drilling and extracting integrated device
  • Drilling and extracting integrated device
  • Drilling and extracting integrated device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: A kind of drilling and pumping integrated device, see figure 1 with figure 2 , the hollow PVC drill pipe 2 carries the PVC drill bit 1 to drill deep into the coal seam, and when the drill hole reaches the target position (for example, 60m), then the PVC drill pipe 2 is sealed. The PVC drill pipe is sealed.

[0017] The hollow PVC drill pipe 2 is used as a gas drainage pipe. The end of the PVC drill pipe 2 is sealed and connected to the air extraction device 10, and the air extraction device 10 is used to discharge the gas inside the borehole.

[0018] The PVC drill pipe 2 can be sealed and butted section by section, so that it can be continuously extended until it is drilled into a suitable position. The butt joint surface of the adjacent PVC drill pipe 2 is preferably provided with a sealing layer, such as a sleeve sealing ring 3, the sealing surface of the adjacent drill pipe can be provided with annular grooves 24 and 25, and the sealing ring 3 is m...

Embodiment 2

[0021] Embodiment 2: On the basis of the method of embodiment 1, the PVC drill bit is improved, see image 3 , Embedding the metal edge portion 9 at the drill edge position to form a composite drill bit. For example, protruding ribs can be provided at the root of the metal blade, and matching grooves can be provided on the base of the drill bit, and the protruding ribs can be embedded in the grooves to form a composite body through a heat sealing process.

Embodiment 3

[0022] Embodiment 3: see figure 2 , on the basis of Embodiment 1, a sealing structure that can be installed is provided, that is, a hole sealing device is movably installed on the end of the drill rod, and a clamping table is movably installed at the end of the drill rod according to actual needs. 5. A circular support plate 6 is set on the outside of the card table, and a circular flexible sealing sheet 7 is set on the outside of the circular support plate. The circular support plate is equivalent to or larger than the drilled hole, and the outer diameter of the circular flexible sealing sheet is larger than The outer diameter of the circular support plate is larger than the outer diameter of the drilled hole, so that when the PVC drill pipe is pumped, the internal air pressure is lower than the external air pressure, and the circular flexible sealing sheet is sucked inward, and it fits and seals near the drilled hole .

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 discloses a drilling and extracting integrated device. The drilling and extracting integrated device comprises a dill pipe, a drill bit and a drilling rig and is characterized in that the drill pipe is a hollow PVC drill pipe, the drill bit is a PVC drill bit, segments of the PVC drill pipe are in butt connection in a sealed mode one by one, and the tail end of the PVC drill pipe is connected to an air extractor in a sealed mode. After work of the drill pipe and the drill bit of the device is finished, the drill pipe and the drill bit are directly left in a dilled hole to serve as a gas extraction pipe, and therefore the device not only is favorable for gas blowing or gas extracting in the hole drilling process but also can better serve as a gas inlet for gas extraction. The drilling and extracting integrated device is easy and convenient to operate, high in efficiency, good in effect and very favorable for being popularized and implemented, and exploiting cost can be reduced, and exploiting speed is not affected.

Description

technical field [0001] The invention relates to the gas drainage technology in the field of coal mines, in particular to a drilling and pumping integrated device. Background technique [0002] The coal seam has been buried deep underground for a long time, and its internal pressure is relatively high. The continuously produced coal bed gas (gas) is compressed in the coal seam and is in a stable state, but in the process of mining the coal seam, the balance of the coal seam is destroyed, and the high-pressure gas stored in the coal seam The gas can burst out suddenly causing a prominent accident. Gas outburst is a serious disaster in coal mines, which restricts the safe production of coal mines. On the other hand, because coalbed methane is partially sealed, it is not easy to be excluded under normal circumstances. According to the standard mining steps, it is necessary to drill holes in the coal seam and drain the gas before mining. For a long time, metal drilling tools ha...

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 Applications(China)
IPC IPC(8): E21F7/00E21B21/00
Inventor 李辉雷东记张宏图胡广东丁志伟周霏李超岳志奇王新伟肖云涛
Owner HENAN POLYTECHNIC UNIV
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