CN206016765U - The strong coal powder injection layer extraction borehole blowout prevention hole sealing device of high methane - Google Patents
The strong coal powder injection layer extraction borehole blowout prevention hole sealing device of high methane Download PDFInfo
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- CN206016765U CN206016765U CN201621043055.1U CN201621043055U CN206016765U CN 206016765 U CN206016765 U CN 206016765U CN 201621043055 U CN201621043055 U CN 201621043055U CN 206016765 U CN206016765 U CN 206016765U
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- tube
- hole sealing
- floral tube
- hole
- flexible floral
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Abstract
The utility model discloses the strong coal powder injection layer extraction borehole blowout prevention hole sealing device of high methane, including flexible floral tube and hole sealing tube, the flexible floral tube is sheathed in the hole sealing tube, the top of the flexible floral tube is concordant with the hole sealing tube top, the bottom of the flexible floral tube is protruding, the bottom of the flexible floral tube is fixedly installed anchor-shaped suspension arrangement, the suspension arrangement includes at least two strand steel wire ropes, at least two strand steel wire ropes and are bent upwards through the flexible floral tube in decussation, and the two ends per strand steel wire rope are the state of making a slit or vent；The Grouting Pipe for cement injection serosity is provided with the outside of the hole sealing tube.The utility model has the advantage of：Extension spray orifice casualty accident during grouting is prevented, has improve processing safety, while hole pumping and mining efficiency can be improved；It is not required to remove blowout hookup and adjustment rig inclination angle, being capable of rapid hole sealing；Device is simple to operate, with low cost, is conducive to energy-conservation wound effect.
Description
Technical field
This utility model is related to colliery one through three prevention, belongs to underground coal mine regional gas control technology and equipment field, especially
Which is related to underground coal mine extraction borehole hole sealing technology.
Background technology
During the high gas layer extraction borehole down tube solid hole of down-hole, because the reasons such as hole Nei Kua holes, water outlet cause to drill
, after trip-out, easily there is spray orifice accident in blocking, methane accumulation.Therefore, blowout hookup need to be first installed at aperture, is removed after trip-out again
Blowout hookup, then operator stand in aperture side face and carry out down tube solid hole, carry out follow-up sealing of hole operation, if during down tube send out
Coal petrography powder in hole with may be entered hole inner sleeve and be sprayed together, to operator near aperture by raw extension spray orifice accident
Damage, during how solving the problems, such as down tube, extension spray orifice accident is a difficult problem all the time.
Utility model content
This utility model for above-mentioned technical problem propose one kind be suitable for high gas layer drilling be particularly out water drilling
Hole and the hole sealing device of the hole drilling that collapses, efficiently solve drilling extension spray orifice accident caused by methane accumulation institute, with safe height
Effect, with low cost the characteristics of.
This utility model employs the following technical solutions to solve above-mentioned technical problem：The strong coal powder injection layer extraction borehole of high methane is prevented
Spray hole sealing device, including flexible floral tube and hole sealing tube, the flexible floral tube is sheathed in the hole sealing tube, the flexible floral tube
Top is concordant with the hole sealing tube top, and the bottom of the flexible floral tube is protruding, and the bottom of the flexible floral tube is fixed and set
Anchor-shaped suspension arrangement is equipped with, the suspension arrangement includes at least two strand steel wire ropes, and at least two strand steel wire ropes are in decussation
Pass through the flexible floral tube and be bent upwards, the two ends per strand steel wire rope are the state of making a slit or vent；The outside of the hole sealing tube
It is provided with the Grouting Pipe for grout injection.As commercially available special hole bottom suspension arrangement is relatively costly, (unit price is 50
～200 yuan), and using effect is poor, especially often occurs phenomenon of losing control of one's feelings using in high inclination-angle up-hole, therefore, makes
The suspension arrangement is used, not only cheap, and be suitable for the suspension of each angle and fix, efficiently solve the suspension of flexible floral tube
Fixation problem.
Further, the hole sealing tube is 2 PVC hard sleeves, and the flexible floral tube is 1 polyethylene floral tube.
Using the method for sealing of the strong coal powder injection layer extraction borehole blowout prevention hole sealing device of high methane as above, including following step
Suddenly：
A) pull out of hole after terminating, first do not remove blowout hookup, and proceed extraction, by the flexible floral tube together with setting
Suspended and fixed device on flexible floral tube enters bottom hole together through under drill power head, clamper, blowout hookup, leads drilling
Logical, so as to solve the problems, such as obstructed in trip-out metapore to cause methane accumulation；The flexible floral tube passes through the suspension arrangement
It is fixed in drilling；
B) blowout hookup is removed, borer frame is fallen or is moved away, then the sealing tube is filled to from drill hole set described
On flexible floral tube, make the flexible floral tube concordant with the top end face of the hole sealing tube, length of tube will according to measure under sealing tube
Ask execution, then between hole sealing tube and hole wall under enter the long Grouting Pipes of 4m all the way and using polyurethane and cotton yarn closure aperture 1.5m,
Injecting cement grout at the hole on the outside of the sealing tube finally by Grouting Pipe carries out solid hole；
C) hole sealing tube for exposing aperture and flexible floral tube are fixed together by iron wire, prevent flexible floral tube from altering from hole
Go out；
D) after the cement grout solidification of solid hole, being fixedly connected extraction flexible pipe on the sealing tube carries out interim extraction,
High methane strong coal powder injection layer extraction borehole sealing of hole process is completed.
During above-mentioned sealing of hole, the length of the flexible floral tube is identical with extraction borehole depth, and the flexible floral tube is stretched
Go out to see corresponding to drilling in section and be additionally provided with coal suspension arrangement described in a group.
The utility model has the advantage of：1. complete opening is turned on by flexible floral tube, it is to avoid in hole, methane accumulation causes to spray
Hole accident, has prevented extension spray orifice casualty accident during grouting, has improve processing safety, while drilling can be improved
Extraction efficiency；2. lower hole sealing tube sealing of hole after pulling out of hole, is not required to remove blowout hookup and adjustment rig inclination angle, safely and fast can seal
Hole；3. device is simple to operate, with low cost, is conducive to energy-conservation wound effect.
Description of the drawings
Fig. 1 is extraction borehole hole sealing structure schematic diagram in this utility model embodiment；
Fig. 2 is the structural representation of suspension arrangement in this utility model embodiment.
Specific embodiment
As shown in figure 1, during high methane, strong coal powder injection layer extraction borehole it may first have to which after solving to pull out of hole, plug-hole causes
The problem of methane accumulation, prevents the generation of extension spray orifice casualty accident, therefore, employs 1 flexible floral tube 1 (polyethylene) and passes through
Enter bottom hole under drill power head, clamper, blowout hookup, by drilling conducting, solving obstructed in trip-out metapore causes gas
Accumulation problems；Also, in order to prevent coarse coal rock dust in down tube process mesopore from hurting sb.'s feelings through drilling machine clamp holder, in drilling machine clamp holder
Preventer is mounted with inside, above accident can be prevented effectively from and occurred.
After entering bottom hole under above-mentioned 1 flexible floral tube (polyethylene hose), it is necessary to solve the problems, such as fixed suspension, in order to avoid be ejected
Or drop out outside hole.Using commercially available coupling type bottom hole suspension arrangement, relatively costly (unit price is at 50～200 yuan), but use
Effect is poor, and the situation of sleeve pipe of losing control of one's feelings especially occurs in high inclination-angle up-hole using in, therefore, devises new suspension
Fixing device 3：200mm length 6～8 is intercepted using diameter ￠ 1.5mm steel wires, is divided into two strands, is made steel wire rope, by two strands of steel wires
Rope through 1 floral tube, reuses diameter ￠ 1.0mm iron wires and tightens in " ten " word flower pattern, and two strand steel wire ropes are bent upwards, into anchor-shaped
Distribution, the two ends of steel wire rope are state (as shown in Figure 2) of making a slit or vent, as steel wire rope has very strong elasticity and toughness, and two ends
Sharply, when steel wire rope opens, two ends are connected on the gap in hole wall coal seam 4, are consolidated very much, finally successfully solve 1 soft
To the suspension difficult problem after bottom hole under property floral tube (polyethylene).
High methane, strong coal powder injection layer extraction borehole blowout prevention sealing of hole the course of work as follows：
1) whole sealing materials are prepared before pulling out of hole, 1 flexible floral tube 1 (polyethylene) is intercepted and hole depth phase in advance according to hole depth
Equal length；
2) suspended and fixed device 3 is installed in 1 flexible floral tube bottom, only coal situation is seen with specific reference to drilling, soft
Property floral tube correspondingly drills and sees that position installs the suspended and fixed device 3 described in a group again at coal.
3) pull out of hole after terminating, first do not remove blowout hookup, and proceed extraction, by the flexible floral tube 1 together with setting
Put the suspended and fixed device 3 on flexible floral tube 1 and enter bottom hole through under drill power head, clamper, blowout hookup together, make brill
Hole turns on, and the flexible floral tube 1 is scheduled in drilling by the suspension arrangement solid 3；
4) blowout hookup is removed, borer frame is fallen or is moved away.Enter 2 PVC sealing of holes from 1 flexible floral tube 1 under outward again
Pipe 2, lower length of tube require to execute according to measure, are provided with 4m4 point of Grouting Pipe 4 and using 5 envelope of polyurethane cotton yarn on the outside of hole sealing tube 2
Stifled 1.5m5, injects cement grout 7 by the Grouting Pipe 4 to hole at the hole on the outside of the sealing tube.
5) the flexible floral tube 1 of the 2 PVC hole sealing tubes 2 and 1 that aperture exposed using tied silk is fixed together, and is prevented 1 soft
Property floral tube 1 is scurried out from hole.
6) after the cement grout solidification of port closing, connection extraction flexible pipe carries out interim extraction, and uses more than 10# ferrum
Silk is fixed, that is, complete the strong coal powder injection layer extraction borehole sealing of hole process of high methane.
Complete opening is turned on by this utility model by flexible floral tube, it is to avoid in hole, methane accumulation causes spray orifice accident, prevents
During grouting, extension spray orifice casualty accident, improves processing safety, while hole pumping and mining efficiency can be improved；Pull out of hole
Descend hole sealing tube sealing of hole afterwards, be not required to remove blowout hookup and adjustment rig inclination angle, being capable of safely and fast sealing of hole；The device operation letter
Single, with low cost, be conducive to energy-conservation wound effect.
Preferred embodiment of the present utility model is the foregoing is only, not in order to limit this utility model, all at this
Any modification, equivalent and improvement that is made within the spirit and principle of utility model etc., should be included in this utility model
Protection domain within.
Claims (2)
1. the strong coal powder injection layer extraction borehole blowout prevention hole sealing device of high methane, it is characterised in that including flexible floral tube and hole sealing tube, described
Flexible floral tube is sheathed in the hole sealing tube, and the top of the flexible floral tube is concordant with the hole sealing tube top, the flexible flower
The bottom of pipe is protruding, and the bottom of the flexible floral tube is fixedly installed anchor-shaped suspension arrangement, the suspension arrangement include to
Few two strand steel wire ropes, at least two strand steel wire ropes and are bent upwards through the flexible floral tube in decussation, described per share
The two ends of steel wire rope are the state of making a slit or vent；The Grouting Pipe for cement injection serosity is provided with the outside of the hole sealing tube.
2. the strong coal powder injection layer extraction borehole blowout prevention hole sealing device of high methane as claimed in claim 1, it is characterised in that the sealing of hole
Manage as 2 PVC hard sleeves, the flexible floral tube is 1 polyethylene floral tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621043055.1U CN206016765U (en) | 2016-09-07 | 2016-09-07 | The strong coal powder injection layer extraction borehole blowout prevention hole sealing device of high methane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621043055.1U CN206016765U (en) | 2016-09-07 | 2016-09-07 | The strong coal powder injection layer extraction borehole blowout prevention hole sealing device of high methane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206016765U true CN206016765U (en) | 2017-03-15 |
Family
ID=58259340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621043055.1U Withdrawn - After Issue CN206016765U (en) | 2016-09-07 | 2016-09-07 | The strong coal powder injection layer extraction borehole blowout prevention hole sealing device of high methane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206016765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285555A (en) * | 2016-09-07 | 2017-01-04 | 淮南矿业(集团)有限责任公司 | High methane strong coal powder injection layer extraction borehole blowout prevention hole sealing device and method for sealing thereof |
-
2016
- 2016-09-07 CN CN201621043055.1U patent/CN206016765U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285555A (en) * | 2016-09-07 | 2017-01-04 | 淮南矿业(集团)有限责任公司 | High methane strong coal powder injection layer extraction borehole blowout prevention hole sealing device and method for sealing thereof |
| CN106285555B (en) * | 2016-09-07 | 2019-01-01 | 淮南矿业(集团)有限责任公司 | The strong coal powder injection layer extraction borehole blowout prevention hole sealing device of high methane and its method for sealing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170315 Effective date of abandoning: 20190101 |
|
| AV01 | Patent right actively abandoned |