CN115467638A - Rapid hole sealing device and hole sealing method for coal mine underground gas extraction drill hole - Google Patents
Rapid hole sealing device and hole sealing method for coal mine underground gas extraction drill hole Download PDFInfo
- Publication number
- CN115467638A CN115467638A CN202210972316.1A CN202210972316A CN115467638A CN 115467638 A CN115467638 A CN 115467638A CN 202210972316 A CN202210972316 A CN 202210972316A CN 115467638 A CN115467638 A CN 115467638A
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- hole sealing
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- sealing mechanism
- gas extraction
- coal mine
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- 238000007789 sealing Methods 0.000 title claims abstract description 122
- 238000000605 extraction Methods 0.000 title claims abstract description 40
- 239000003245 coal Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 16
- 229920002635 polyurethane Polymers 0.000 claims abstract description 29
- 239000004814 polyurethane Substances 0.000 claims abstract description 29
- 239000011083 cement mortar Substances 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims description 56
- 238000003756 stirring Methods 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract 1
- 239000003566 sealing material Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a quick hole sealing device for a coal mine underground gas extraction drill hole, which comprises an underground supporting plate, wherein an extension hole is formed in the center of the upper end face of the underground supporting plate, supporting oil cylinders are hinged at the four corners of the lower end face of the underground supporting plate through rotating seats, and self-locking universal wheels are fixedly arranged at the lower ends of the four supporting oil cylinders. The invention also discloses a hole sealing method of the device for quickly sealing the coal mine underground gas extraction drill hole. According to the invention, automatic hole sealing can be carried out only by calculating the hole sealing material amount required by hole sealing in advance, so that the operation is simple, manpower and material resources are saved, and the hole sealing efficiency is high; the cement mortar and the polyurethane are matched with each other for hole sealing, so that the hole sealing effect is good, no leakage is generated, and the safety and the stability are strong; the method can be suitable for various terrains when hole sealing is carried out, and has strong applicability.
Description
Technical Field
The invention relates to the technical field of coal mine gas extraction, in particular to a device and a method for quickly sealing a coal mine underground gas extraction drill hole.
Background
In the process of coal mine mining, potential safety hazards caused by gas can be avoided, in order to solve the problem fundamentally, mining personnel often can use a gas extraction technology to eliminate the potential safety hazards caused by the gas, technical personnel are required to recognize the importance of the gas extraction in the process, and the gas extraction effect is improved on the basis of mastering the key hole sealing technology. The gas extraction quantity is closely related to the hole sealing quality of the extraction drill hole.
At present, the extraction drilling hole sealing effect is poor, the hole sealing time is long, the extraction concentration is low, the common problem of coal seam gas extraction is solved, and the whole hole sealing process needs more consumed manpower and funds.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a device and a method for quickly sealing a coal mine underground gas extraction drill hole.
In order to achieve the purpose, the invention provides the following technical scheme:
a quick hole sealing device for a coal mine underground gas extraction drill hole comprises an lower supporting plate, wherein an extension hole is formed in the center of the upper end face of the lower supporting plate, supporting oil cylinders are hinged to four corners of the lower end face of the lower supporting plate through rotating seats, and self-locking universal wheels are fixedly arranged at the lower ends of the four supporting oil cylinders;
electric slide rails are fixedly arranged on two sides of the upper end face of the lower supporting plate, electric slide blocks are arranged on the upper end faces of the two electric slide rails in a sliding mode, an upper movable plate is fixedly arranged at the upper ends of the two electric slide blocks, a PLC (programmable logic controller) processor and a timer are fixedly arranged in one side of the upper movable plate respectively, a control panel is fixedly arranged on one side of the front end of the upper movable plate, and a first hole sealing mechanism and a second hole sealing mechanism are fixedly arranged on the upper end face of the upper movable plate close to the two sides respectively;
a hole sealing mechanism and No. two hole sealing mechanisms all include the storage jar and take out from the pump, take out from the output of pump and input fixed pipeline and No. two pipelines of being provided with respectively, the fixed flowmeter that is provided with on the pipe shaft of No. two pipelines, the fixed protective case that is provided with of lower terminal surface center department of storage jar, the fixed agitator motor that is provided with in inside of protective case, agitator motor's output runs through protective case and storage jar and leads to the fixed stirring vane that is provided with in inside of storage jar.
Preferably, the lower terminal surface both sides of storage jar are all fixed and are provided with the supporting leg, protecting crust and take out from the pump all with last fly leaf fixed connection.
Preferably, the lower end of the first pipeline penetrates through the upper movable plate and the extension hole to reach the lower end of the lower support plate.
Preferably, the control panel and the timer are located on the same side of the upper movable plate.
Preferably, the fixed observation window that is provided with in front side center department of storage jar, no. two pipelines are kept away from and are taken out the one end of pump and be connected with the discharge gate of storage jar.
Preferably, the PLC processor is respectively and electrically connected with the control panel, the timer, the flowmeter, the pump and the stirring motor.
Preferably, a hole sealing plate is fixedly arranged at the lower end of the first pipeline of the second hole sealing mechanism.
Preferably, cement mortar and polyurethane are respectively filled in the storage tanks of the first hole sealing mechanism and the second hole sealing mechanism.
A hole sealing method of a coal mine underground gas extraction drill hole quick hole sealing device is realized by adopting the coal mine underground gas extraction drill hole quick hole sealing device, and specifically comprises the following steps:
firstly, calculating quality data of cement mortar and polyurethane required by a mine, then, moving and adjusting the position of an upper movable plate through the extension of a supporting oil cylinder and the driving of an electric slide block, so that a second pipeline of a first hole sealing mechanism and a second hole sealing mechanism are respectively aligned to a mine opening, then, respectively putting cement mortar and polyurethane raw materials with required quality into storage tanks of the first hole sealing mechanism and the second hole sealing mechanism, starting and closing a drawing pump and a stirring motor of the first hole sealing mechanism and the second hole sealing mechanism at regular time by using a control panel and a timer, and then, sequentially starting the drawing pumps of the first hole sealing mechanism and the second hole sealing mechanism to respectively inject the cement mortar and the polyurethane raw materials into the mine for hole sealing operation.
Further, during the hole sealing operation, firstly need be to be equipped with the pipeline of No. two hole sealing mechanisms of polyurethane and insert the stope in, then utilize the pipeline of No. one to pour into the polyurethane raw materials into, utilize the hole sealing plate to carry out the shutoff, after polyurethane solidifies, cut off below and the pipeline of No. one that polyurethane is fixed, it can to carry out the shutoff through the pipeline of No. one hole sealing mechanism with cement mortar again.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides a quick hole sealing device and a hole sealing method for a coal mine underground gas extraction drill hole.
2. The invention provides a quick hole sealing device and a hole sealing method for a coal mine underground gas extraction drill hole.
3. The invention provides a device and a method for quickly sealing holes in coal mine underground gas extraction drill holes.
Drawings
FIG. 1 is a schematic structural diagram of the device for rapidly sealing a coal mine underground gas extraction borehole, provided by the invention;
FIG. 2 is a schematic cross-sectional view of the device for rapidly sealing the borehole for gas extraction in the coal mine of the present invention;
FIG. 3 is a schematic diagram of the PLC of the present invention connected to a control panel, a timer, a flow meter, a pump and a stirring motor;
FIG. 4 is a schematic front view of a first hole sealing mechanism of the present invention;
FIG. 5 is a schematic front cross-sectional view of a first hole sealing mechanism of the present invention;
fig. 6 is a schematic axial view of the lower support plate of the present invention.
In the figure: 1. a first hole sealing mechanism; 2. a second hole sealing mechanism; 3. a control panel; 4. an electric slider; 5. rotating the base; 6. a support cylinder; 7. a self-locking universal wheel; 8. a lower support plate; 9. an electric slide rail; 10. an upper movable plate; 11. a timer; 12. a PLC processor; 13. an extension hole; 14. sealing the hole plate; 101. a storage tank; 102. supporting legs; 103. protecting the shell; 104. a first pipeline; 105. a pump-out pump; 106. a flow meter; 107. an observation window; 108. a stirring blade; 109. a stirring motor; 110. and a second pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example one
Referring to fig. 1-6, the quick hole sealing device for the coal mine underground gas extraction drill hole comprises an lower supporting plate 8, wherein an extension hole 13 is formed in the center of the upper end face of the lower supporting plate 8, supporting oil cylinders 6 are hinged to four corners of the lower end face of the lower supporting plate 8 through rotating seats 5, the supporting oil cylinders 6 play a supporting role, the inclination can be adjusted, self-locking universal wheels 7 are fixedly arranged at the lower ends of the four supporting oil cylinders 6, and the device is convenient to move through the self-locking universal wheels 7;
referring to fig. 4-5, a hole sealing mechanism 1 and a hole sealing mechanism 2 both include storage tank 101 and take out from pump 105, take out from pump 105's output and input respectively fixed pipeline 104 and pipeline 110 No. two, fixed flowmeter 106 that is provided with on No. two pipeline 110's the pipe shaft, the fixed protective case 103 that is provided with of lower terminal surface center department of storage tank 101, the fixed agitator motor 109 that is provided with in inside of protective case 103, agitator motor 109's output runs through protective case 103 and storage tank 101 to the fixed stirring vane 108 that is provided with in inside of storage tank 101, make stirring vane 108 rotate through starting agitator motor 109 and make cement mortar or polyurethane mix's mixing more, it is difficult for solidifying to make the outflow.
The lower terminal surface both sides of storage jar 101 are all fixed and are provided with supporting leg 102, are used for further strengthening the effect of stability through supporting leg 102, and supporting leg 102, protecting crust 103 and pump 105 all with last movable plate 10 fixed connection, and the lower extreme of a pipeline 104 runs through last movable plate 10 and the lower extreme that extends hole 13 and lead to lower bolster 8.
According to the device for quickly sealing the hole in the coal mine underground gas extraction drill hole, the control panel 3 and the timer 11 are positioned on the same side of the upper movable plate 10, the observation window 107 is fixedly arranged at the center of the front side of the storage tank 101, the internal situation can be conveniently observed through the observation window 107, one end, far away from the drawing-off pump 105, of the second pipeline 110 is connected with the discharge hole of the storage tank 101, referring to fig. 3, the PLC (programmable logic controller) processor 12 is respectively and electrically connected with the control panel 3, the timer 11, the flowmeter 106, the drawing-off pump 105 and the stirring motor 109, the first hole sealing mechanism 1 and the second hole sealing mechanism 2 are identical in structure, and the difference is that the hole sealing plate 14 is fixedly arranged at the lower end of the first pipeline 104 of the second hole sealing mechanism 2, the hole sealing plate 14 plays a hole sealing role and prevents polyurethane from overflowing, cement mortar and polyurethane are respectively arranged in the storage tanks 101 of the first hole sealing mechanism 1 and the second hole sealing mechanism 2, and the cement mortar and the polyurethane are mutually matched, so that the hole sealing is more firm and the leakage is difficult to occur.
Example two
A hole sealing method of a coal mine underground gas extraction drill hole quick hole sealing device is realized by adopting the coal mine underground gas extraction drill hole quick hole sealing device in the first embodiment, and specifically comprises the following steps:
firstly, calculating mass data of cement mortar and polyurethane required by a mine, then driving an upper movable plate 10 to move and adjust positions through the extension of a supporting oil cylinder 6 and the driving of an electric slider 4, enabling a second pipeline 110 of a first hole sealing mechanism 1 and a second hole sealing mechanism 2 to be respectively aligned with a mine opening, then respectively putting the cement mortar and the polyurethane raw materials with required mass into storage tanks 101 of the first hole sealing mechanism 1 and the second hole sealing mechanism 2, using a control panel 3 to match with a timer 11 to start and close a pump 105 and a stirring motor 109 of the first hole sealing mechanism 1 and the second hole sealing mechanism 2 at regular time, and then sequentially starting the pump 105 of the first hole sealing mechanism 1 and the second hole sealing mechanism 2 to respectively inject the cement mortar and the polyurethane raw materials into the mine for hole sealing operation.
During the hole sealing operation, firstly need be equipped with the pipeline 104 of No. 2 of No. two hole sealing mechanism of polyurethane in inserting the mine, then utilize the pipeline 104 of No. one to pour into the polyurethane raw materials into, utilize the hole sealing board 14 to block, after polyurethane solidifies, cut off below and the pipeline 104 of No. one that the polyurethane is fixed, pour into cement mortar into through the pipeline 104 of No. one hole sealing mechanism 1 and carry out the shutoff.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The quick hole sealing device for the coal mine underground gas extraction drill hole is characterized by comprising a lower supporting plate, wherein an extension hole is formed in the center of the upper end face of the lower supporting plate, supporting oil cylinders are hinged to the four corners of the lower end face of the lower supporting plate through rotating seats, and self-locking universal wheels are fixedly arranged at the lower ends of the four supporting oil cylinders;
electric slide rails are fixedly arranged on two sides of the upper end face of the lower supporting plate, electric slide blocks are arranged on the upper end faces of the two electric slide rails in a sliding mode, an upper movable plate is fixedly arranged at the upper ends of the two electric slide blocks, a PLC (programmable logic controller) processor and a timer are fixedly arranged in one side of the upper movable plate respectively, a control panel is fixedly arranged on one side of the front end of the upper movable plate, and a first hole sealing mechanism and a second hole sealing mechanism are fixedly arranged on the upper end face of the upper movable plate close to the two sides respectively;
a hole sealing mechanism and No. two hole sealing devices all include the storage jar and take out from the pump, take out output and the input of being provided with a pipeline and No. two pipelines from the pump respectively fixedly, the fixed flowmeter that is provided with on the pipe shaft of No. two pipelines, the fixed protective case that is provided with of lower terminal surface center department of storage jar, the fixed agitator motor that is provided with in inside of protective case, agitator motor's output runs through protective case and storage jar and leads to the fixed stirring vane that is provided with in inside of storage jar.
2. The device for rapidly sealing the underground gas extraction borehole of the coal mine according to claim 1, wherein supporting legs are fixedly arranged on two sides of the lower end surface of the storage tank, and the supporting legs, the protective shell and the extraction pump are fixedly connected with an upper movable plate.
3. The device for rapidly sealing the coal mine underground gas extraction borehole according to claim 1, wherein the lower end of the first pipeline penetrates through the upper movable plate and the extension hole to reach the lower end of the lower support plate.
4. The device for rapidly sealing the gas extraction borehole in the underground coal mine according to claim 1, wherein the control panel and the timer are located on the same side of the upper movable plate.
5. The device for rapidly sealing the coal mine underground gas extraction drill hole according to claim 1, wherein an observation window is fixedly arranged at the center of the front side of the storage tank, and one end, far away from the extraction pump, of the second pipeline is connected with a discharge hole of the storage tank.
6. The device for rapidly sealing the underground coal mine gas extraction borehole according to claim 1, wherein the PLC processor is electrically connected with a control panel, a timer, a flowmeter, a pump and a stirring motor respectively.
7. The device for rapidly sealing the coal mine underground gas extraction borehole according to claim 1, characterized in that a hole sealing plate is fixedly arranged at the lower end of the first pipeline of the second hole sealing mechanism.
8. The device for quickly sealing the coal mine underground gas extraction drill hole according to claim 1, wherein cement mortar and polyurethane are respectively filled in the storage tanks of the first hole sealing mechanism and the second hole sealing mechanism.
9. A hole sealing method of a coal mine underground gas extraction drill hole rapid hole sealing device is realized by adopting the coal mine underground gas extraction drill hole rapid hole sealing device according to any one of claims 1-8, and specifically comprises the following steps:
firstly, calculating quality data of cement mortar and polyurethane required by a mine, then, moving and adjusting the position of an upper movable plate through the extension of a supporting oil cylinder and the driving of an electric slide block, so that a second pipeline of a first hole sealing mechanism and a second hole sealing mechanism are respectively aligned to a mine opening, then, respectively putting cement mortar and polyurethane raw materials with required quality into storage tanks of the first hole sealing mechanism and the second hole sealing mechanism, starting and closing a drawing pump and a stirring motor of the first hole sealing mechanism and the second hole sealing mechanism at regular time by using a control panel and a timer, and then, sequentially starting the drawing pumps of the first hole sealing mechanism and the second hole sealing mechanism to respectively inject the cement mortar and the polyurethane raw materials into the mine for hole sealing operation.
10. The method for sealing the hole of the rapid hole sealing device for the gas extraction borehole in the coal mine according to claim 9, wherein in the hole sealing operation, a first pipeline of a second hole sealing mechanism filled with polyurethane is firstly inserted into the borehole, then polyurethane raw materials are injected by the first pipeline, the first pipeline fixed with the polyurethane is blocked by a hole sealing plate, after the polyurethane is solidified, the first pipeline fixed with the polyurethane below is cut off, and cement mortar is injected by the first pipeline of the first hole sealing mechanism to be blocked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210972316.1A CN115467638A (en) | 2022-08-15 | 2022-08-15 | Rapid hole sealing device and hole sealing method for coal mine underground gas extraction drill hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210972316.1A CN115467638A (en) | 2022-08-15 | 2022-08-15 | Rapid hole sealing device and hole sealing method for coal mine underground gas extraction drill hole |
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| Publication Number | Publication Date |
|---|---|
| CN115467638A true CN115467638A (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210972316.1A Pending CN115467638A (en) | 2022-08-15 | 2022-08-15 | Rapid hole sealing device and hole sealing method for coal mine underground gas extraction drill hole |
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Citations (12)
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|---|---|---|---|---|
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| US20140090853A1 (en) * | 2012-09-28 | 2014-04-03 | Paul Edward Anderson | Subsea Well Containment Systems and Methods |
| CN104847303A (en) * | 2015-05-19 | 2015-08-19 | 安徽佳泰矿业科技有限公司 | Quick injection type hole sealing device and method for applying same |
| CN207499838U (en) * | 2017-11-23 | 2018-06-15 | 中国矿业大学 | Coal mine gas extraction drill hole is thickened slurry sealing of hole system |
| CN110617027A (en) * | 2019-09-27 | 2019-12-27 | 肥城新查庄地质勘查有限公司 | Movable relay type single-liquid and double-liquid grouting system and grouting method thereof |
| CN111677484A (en) * | 2020-07-22 | 2020-09-18 | 吕学民 | Intelligent ultra-long stroke oil production system |
| CN211648075U (en) * | 2020-03-03 | 2020-10-09 | 陕西长武亭南煤业有限责任公司 | Gas drainage hole sealing slip casting device for coal mine |
| CN112682086A (en) * | 2021-01-05 | 2021-04-20 | 扎赉诺尔煤业有限责任公司 | Nitrogen injection fire prevention method for small coal pillar mining near goaf |
| CN213039251U (en) * | 2020-10-09 | 2021-04-23 | 黄楠楠 | Gas drainage hole sealing device |
| CN113756742A (en) * | 2021-08-23 | 2021-12-07 | 山西兰花科创玉溪煤矿有限责任公司 | Secondary hole sealing method for coal mine underground gas drainage drill hole |
| CN113894929A (en) * | 2021-09-01 | 2022-01-07 | 中电建路桥集团有限公司 | Intelligent grouting equipment for water-rich silty-fine sand stratum |
| CN114471248A (en) * | 2021-12-29 | 2022-05-13 | 中煤科工集团武汉设计研究院有限公司 | Novel slurry storage tank capable of preventing high-concentration coal water slurry from hardening and hardening prevention method thereof |
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2022
- 2022-08-15 CN CN202210972316.1A patent/CN115467638A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140090853A1 (en) * | 2012-09-28 | 2014-04-03 | Paul Edward Anderson | Subsea Well Containment Systems and Methods |
| CN103195390A (en) * | 2013-04-10 | 2013-07-10 | 山西潞安环保能源开发股份有限公司 | Mining-coal bed nearly horizontal gas extraction borehole sealing method |
| CN104847303A (en) * | 2015-05-19 | 2015-08-19 | 安徽佳泰矿业科技有限公司 | Quick injection type hole sealing device and method for applying same |
| CN207499838U (en) * | 2017-11-23 | 2018-06-15 | 中国矿业大学 | Coal mine gas extraction drill hole is thickened slurry sealing of hole system |
| CN110617027A (en) * | 2019-09-27 | 2019-12-27 | 肥城新查庄地质勘查有限公司 | Movable relay type single-liquid and double-liquid grouting system and grouting method thereof |
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| CN113756742A (en) * | 2021-08-23 | 2021-12-07 | 山西兰花科创玉溪煤矿有限责任公司 | Secondary hole sealing method for coal mine underground gas drainage drill hole |
| CN113894929A (en) * | 2021-09-01 | 2022-01-07 | 中电建路桥集团有限公司 | Intelligent grouting equipment for water-rich silty-fine sand stratum |
| CN114471248A (en) * | 2021-12-29 | 2022-05-13 | 中煤科工集团武汉设计研究院有限公司 | Novel slurry storage tank capable of preventing high-concentration coal water slurry from hardening and hardening prevention method thereof |
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