CN209277932U - A kind of coal mine gas drainage device - Google Patents
A kind of coal mine gas drainage device Download PDFInfo
- Publication number
- CN209277932U CN209277932U CN201822102894.1U CN201822102894U CN209277932U CN 209277932 U CN209277932 U CN 209277932U CN 201822102894 U CN201822102894 U CN 201822102894U CN 209277932 U CN209277932 U CN 209277932U
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- China
- Prior art keywords
- hole
- pipe
- drilling pipe
- drilling
- drainage tube
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Abstract
The utility model relates to a kind of coal mine gas drainage devices, pass through setting threaded hole, bolt, connecting plate and card slot, so that drilling pipe can separate after piercing designated position with drilling machine, drainage tube is equipped with inside drilling pipe simultaneously, it is not necessary that drilling pipe is taken out, it is put into drainage tube, the gap between drainage tube and drilling is blocked, avoids gas in the meantime and pass through slot leakage；By the way that partition is arranged, two spaces will be divided into drilling pipe, two spaces are blocked respectively by the first Grouting Pipe and the second Grouting Pipe, improve closure rate, ensure that density with time-division storehouse slip casting；By the way that circular baffle plate is arranged, gas leakage is further avoided；By offering stomata in drainage tube rotary table position uniform circular, convenient for extracting the gas in coal seam.
Description
Technical field
The utility model relates to coal mine gas drainage technical fields, and in particular to a kind of coal mine gas drainage device.
Background technique
Coal mine gas drainage is directed to coal seam and gas gathers region and drills, and drilling is connect on dedicated pipeline, with pumping
It adopts equipment and the gas in coal seam and goaf is evacuated to ground, be used；Or it is emitted into total return.Mash gas extraction is not only
Be reduce recovery process in gas emission, prevent gas exceeding limit and accumulation, pre- anti-gas explosion and coal and gas prominent thing
Therefore important measures, can also turn bane into boon, the resource as coal association is developed and used, currently, China still remains greatly
Mine gas extraction rate and the undesirable situation of extraction concentration are measured, in addition to China's gas bearing complicated condition, gas pumping method
Select it is improper other than, another important reason be gas drainage pipe selection and borehole sealing it is ineffective.Borehole sealing
Refer to and block in the gap between drilling and releasing pipe completely, prevents gas from hole wall and the internal leakage of releasing pipe gap, therefore mention
High sealing quality, enhancing gas pumping effect, are a problem to be solved and the important guarantee of mine safety production.Currently,
The sealing of coal mine gas extraction drill hole includes two methods of polyurethane sealing of hole and cement mortar sealing of hole.
Currently, application No. is the Chinese patents of CN201721367530.5 to disclose a kind of New Coal Mine gas drainage dress
It sets, one end that extraction tube body protrudes into drilling is the curved head for blocking extraction tube body, and is evenly distributed with multiple extractions in curved head
Hole is surrounded with the first pouch and the second pouch along the axially spaced-apart of drainage tube body outer surface, leans in the first pouch, the second pouch
The side of nearly curved head is equipped with the eyelid retractor of support extraction tube body, also is provided with propping up close to the side of the second pouch in drainage holes
The eyelid retractor of extraction tube body is supportted, the utility model is used for gas drainage, but the device is between drainage tube and drilling
When gap is blocked, the gas in gap is easy leakage, and there are the risks of gas leakage, is based on this, the utility model design
A kind of coal mine gas drainage device.
Utility model content
One main purpose of the utility model is to overcome at least one defect in the prior art, provides a kind of coal mine
Gas drainage device, to solve to propose the gap when blocking to the gap between drainage tube and drilling in above-mentioned background
Interior gas is easy leakage, there are problems that the risk of gas leakage.
In order to realize above-mentioned technical proposal, the utility model uses following technical scheme:
One aspect according to the present utility model provides a kind of coal mine gas drainage device, including drilling pipe, the drilling pipe table
Face is fixedly installed with convex block, and partition is fixedly connected with inside the drilling pipe, and the drilling pipe is internally provided with drainage tube, the extraction
Pipe runs through partition, and the drainage tube side bottom offers stomata, and the extraction bottom of the tube is fixedly connected with drill bit, the drilling pipe
Top two sides symmetrically offer threaded hole, and circular baffle plate is fixedly connected at the top of the drilling pipe, and the circular baffle plate closes drilling pipe
Top, is provided with connecting plate at the top of the drilling pipe, the connecting plate bottom be fixedly connected with the matched bolt of threaded hole, it is described
Connecting plate top center offers card slot, and the connecting plate connects external drilling machine by card slot, and the threaded hole top is solid
Surely it is connected with gasket and nut, the bolt is fixed by gasket and nut, and two sides are symmetrically opened at the top of the circular baffle plate
Equipped with first through hole and the second through-hole, the first through hole and the second through-hole run through circular baffle plate, insert inside the first through hole
It is connected to the first Grouting Pipe, the positive row of the second through-hole, which is projected on the position of partition, offers connecting hole, and the connecting hole runs through
Partition, the second Grouting Pipe is plugged with inside second through-hole, and second Grouting Pipe is inserted by the second through-hole and connecting hole
Drilling pipe partition is respectively connected with grouting device, the extraction tube top with down space, first Grouting Pipe and the second slip casting tube end
Portion is fixedly connected with hose, and the hose end connects external draw-out device.
Preferably, the convex block even circumferential is arranged in drilling pipe outer surface, and the drainage tube is by cylinder position and rotary table portion
Position composition, the partition are in the intersection at drainage tube cylinder position and rotary table position, are higher than drilling pipe, institute at the top of the drainage tube
The setting of stomata even circumferential is stated in rotary table position side, the drill bit is the section circle ruler that taper and its great circle size are less than drilling pipe
It is very little.
Preferably, the circular baffle plate is integrated with drilling pipe casts, and the bolt is by threaded section and smooth department
Position composition, the length of the bolt threaded section are greater than the depth of threaded hole, the length of the bolt smooth part and with spiral shell
The length of line part is identical, and height locating for the bolt end head is higher than height locating for drainage tube top.
Preferably, the first through hole, the second through-hole, connecting hole, the first slip casting tube section and the second slip casting tube section
Size is identical.
Preferably, the hose is high-pressure glue leather hose, and each structure of device is made by corrosion-resistant material.
Compared with prior art, the utility model has the beneficial effects that passing through setting threaded hole, bolt, connecting plate and card
Slot, so that drilling pipe can separate after piercing designated position with drilling machine, while be equipped with drainage tube inside drilling pipe, without taking drilling pipe
Out, it is put into drainage tube, the gap between drainage tube and drilling is blocked, avoids gas in the meantime and pass through slot leakage；Pass through
Partition is set, two spaces will be divided into drilling pipe, two spaces are sealed respectively by the first Grouting Pipe and the second Grouting Pipe
It is stifled, closure rate is improved, ensure that density with time-division storehouse slip casting；By the way that circular baffle plate is arranged, further avoids gas and let out
Leakage；By offering stomata in drainage tube rotary table position uniform circular, convenient for extracting the gas in coal seam.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, for ordinary skill people
For member, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of coal mine gas drainage device described in the utility model；
Fig. 2 is the utility model sectional elevation structural schematic diagram；
Fig. 3 is the portion the utility model A enlarged structure schematic diagram；
Fig. 4 is the utility model horizontal profile structure schematic diagram.
In attached drawing, parts list represented by the reference numerals are as follows:
1- drilling pipe, 2- convex block, 3- partition, 4- drainage tube, 5- stomata, 6- drill bit, 7- threaded hole, 8- circular baffle plate, 9- spiral shell
Bolt, 10- connecting plate, 11- card slot, 12- gasket, 13- nut, 14- first through hole, the first Grouting Pipe of 15-, the second through-hole of 16-,
17- connecting hole, the second Grouting Pipe of 18-, 19- hose.
Specific embodiment
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.Term
The orientation or state relation of the instructions such as "inner", "upper", "lower" are orientation based on the figure or state relation, merely to just
In description the utility model and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention is understood as the case may be.
It should be noted that the specification and claims of the utility model and term " first " in above-mentioned attached drawing,
" second " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that in this way
The data used are interchangeable under appropriate circumstances, so as to the embodiments of the present invention described herein.
With reference to the accompanying drawing and specific embodiment is described in further detail the utility model.
Fig. 1-4, a kind of coal mine gas drainage device described in the utility model, including drilling pipe 1 are please referred to, 1 surface of drilling pipe is solid
Dingan County is equipped with convex block 2, and partition 3 is fixedly connected with inside drilling pipe 1, and drilling pipe 1 is internally provided with drainage tube 4, and drainage tube 4 runs through partition
3,4 side bottom of drainage tube offers stomata 5, and 4 bottom of drainage tube is fixedly connected with drill bit 6, and 1 top two sides of drilling pipe symmetrically open up
There is threaded hole 7, circular baffle plate 8 is fixedly connected at the top of drilling pipe 1, circular baffle plate 8 is closed 1 top of drilling pipe, is provided at the top of drilling pipe 1
Connecting plate 10,10 bottom of connecting plate is fixedly connected with to be opened up with the matched bolt 9 of threaded hole 7,10 top center of connecting plate
There is card slot 11, connecting plate 10 connects external drilling machine by card slot 11, gasket 12 and nut 13 is fixedly connected at the top of threaded hole 7,
Bolt 9 is fixed by gasket 12 and nut 13, and 8 top two sides of circular baffle plate symmetrically offer first through hole 14 and second and lead to
Hole 16, first through hole 14 and the second through-hole 16 run through circular baffle plate 8, are plugged with the first Grouting Pipe 15 inside first through hole 14, the
The positive row of two through-hole 16, which is projected on the position of partition 3, offers connecting hole 17, and connecting hole 17 is in partition 3, the second through-hole 16
Portion is plugged with the second Grouting Pipe 18, and the second Grouting Pipe 18 is inserted into 1 partition of drilling pipe, 3 or less sky by the second through-hole 16 and connecting hole 17
Between, the first Grouting Pipe 15 and 18 end of the second Grouting Pipe are respectively connected with grouting device, are fixedly connected with hose at the top of drainage tube 4
19,19 end of hose connects external draw-out device.
Wherein, 2 even circumferential of convex block is arranged in 1 outer surface of drilling pipe, and drainage tube 4 is made of cylinder position and rotary table position,
Partition 3 is in the intersection at 4 cylinder position and rotary table position of drainage tube, is higher than drilling pipe 1 at the top of drainage tube 4, facilitates hose 19
Installation, the setting of 5 even circumferential of stomata is in rotary table position side, and convenient for extracting the gas in coal seam, drill bit 6 is taper and its great circle
Size is less than the section circle size of drilling pipe 1；Circular baffle plate 8 is integrated with drilling pipe 1 to be cast, and ensure that 8 pairs of circular baffle plate brills
The leakproofness of cylinder 1, bolt 9 are made of threaded section and smooth department position, and the length of 9 threaded section of bolt is greater than threaded hole 7
Depth, the length of 9 smooth part of bolt is identical with the length of threaded section, height locating for 9 top of bolt be higher than extraction
Height locating for 4 top of pipe, is connected convenient for hose 19 with drainage tube 4；First through hole 14, the second through-hole 16, connecting hole 17, first
15 section of Grouting Pipe is identical with the size in 18 section of the second Grouting Pipe；Hose 19 is high-pressure glue leather hose, and each structure of device
It is made by corrosion-resistant material.
One concrete application of the present embodiment are as follows: threaded hole 7 is threadedly coupled using bolt 9, by connecting plate 10 and drilling pipe 1
It is fixed, bolt 9 is fixed by gasket 12 and nut 13, external drilling machine connects connecting plate 10 and outside by card slot 11
The direction and bolt 9 that drilling machine drives connecting plate 10 to rotate are identical as the direction of 7 screw threads for fastening of threaded hole, and external drilling machine drives connection
Plate 10 rotates, so that drilling pipe 1 and drill bit 6 be driven to drill, after the completion of drilling, removes connecting plate 10 and external drilling machine, passes through
Grouting device first passes through the second Grouting Pipe 18 and carries out slip casting to 3 following region of partition, right by the second Grouting Pipe 15 again after the completion
Region carries out slip casting between partition 3 and circular baffle plate 8, and storehouse slip casting is divided to guarantee density, extracts coal seam finally by draw-out device
Interior gas.
It should be appreciated that the utility model is not limited in its application to the detailed construction and arrangement of component proposed in this paper
Mode.The utility model can have other embodiments, and can realize and execute in many ways.Aforesaid deformation form
It is fallen in the scope of the utility model with modification.It should be appreciated that the utility model disclosed and defined herein extends
It is mentioned to text and/or drawings or all alternative combinations of two or more apparent independent features.It is described herein
Embodiment illustrate to become known for realize the best mode of the utility model, and those skilled in the art will be enable to utilize
The utility model.
Claims (5)
1. a kind of coal mine gas drainage device, including drilling pipe, which is characterized in that the drilling pipe surface is fixedly installed with convex block, institute
It states and is fixedly connected with partition inside drilling pipe, the drilling pipe is internally provided with drainage tube, and the drainage tube runs through partition, the extraction
Pipe side bottom offers stomata, and the extraction bottom of the tube is fixedly connected with drill bit, and two sides symmetrically offer at the top of the drilling pipe
Threaded hole, the drilling pipe top are fixedly connected with circular baffle plate, and the circular baffle plate closing drilling pipe top, the drilling pipe top is set
It is equipped with connecting plate, the connecting plate bottom is fixedly connected with and the matched bolt of threaded hole, the connecting plate top center
Card slot is offered, the connecting plate connects external drilling machine by card slot, is fixedly connected with gasket and nut at the top of the threaded hole,
The bolt is fixed by gasket and nut, and two sides symmetrically offer first through hole and second and lead at the top of the circular baffle plate
Hole, the first through hole and the second through-hole run through circular baffle plate, are plugged with the first Grouting Pipe inside the first through hole, and described the
The positive row of two through-holes, which is projected on the position of partition, offers connecting hole, and the connecting hole is inside partition, second through-hole
It is plugged with the second Grouting Pipe, second Grouting Pipe is inserted into drilling pipe partition by the second through-hole and connecting hole with down space, described
First Grouting Pipe and the second slip casting tube end are respectively connected with grouting device, are fixedly connected with hose at the top of the drainage tube, described
Hose end connects external draw-out device.
2. a kind of coal mine gas drainage device according to claim 1, which is characterized in that the convex block even circumferential setting
In drilling pipe outer surface, the drainage tube is made of cylinder position and rotary table position, the partition be in drainage tube cylinder position and
The intersection at rotary table position, the drainage tube top are higher than drilling pipe, and the stomata even circumferential is arranged in rotary table position side, institute
Stating drill bit is the section circle size that taper and its great circle size are less than drilling pipe.
3. a kind of coal mine gas drainage device according to claim 1, which is characterized in that the circular baffle plate and drilling pipe one
Body is cast, and the bolt is made of threaded section and smooth department position, and the length of the bolt threaded section is greater than
The depth of threaded hole, the length of the bolt smooth part is identical with the length of threaded section, locating for the bolt end head
Height is higher than height locating for drainage tube top.
4. a kind of coal mine gas drainage device according to claim 1, which is characterized in that the first through hole, second are led to
Hole, connecting hole, the size of the first slip casting tube section and the second slip casting tube section are identical.
5. a kind of coal mine gas drainage device according to claim 1, which is characterized in that the hose is that high-pressure glue is soft and soggy
Pipe, and each structure of device is made by corrosion-resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822102894.1U CN209277932U (en) | 2018-12-14 | 2018-12-14 | A kind of coal mine gas drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822102894.1U CN209277932U (en) | 2018-12-14 | 2018-12-14 | A kind of coal mine gas drainage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209277932U true CN209277932U (en) | 2019-08-20 |
Family
ID=67611120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822102894.1U Expired - Fee Related CN209277932U (en) | 2018-12-14 | 2018-12-14 | A kind of coal mine gas drainage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209277932U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781944A (en) * | 2021-01-04 | 2021-05-11 | 山东安益矿用设备股份有限公司 | Quick extraction sampling device based on coal mine gas extraction |
| CN113266413A (en) * | 2021-06-02 | 2021-08-17 | 山东科技大学 | Gas extraction drill hole plugging device and using method |
-
2018
- 2018-12-14 CN CN201822102894.1U patent/CN209277932U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781944A (en) * | 2021-01-04 | 2021-05-11 | 山东安益矿用设备股份有限公司 | Quick extraction sampling device based on coal mine gas extraction |
| CN113266413A (en) * | 2021-06-02 | 2021-08-17 | 山东科技大学 | Gas extraction drill hole plugging device and using method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190820 Termination date: 20211214 |