CN103195388A - Two-plugging hole packer and plugging grouting method - Google Patents
Two-plugging hole packer and plugging grouting method Download PDFInfo
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- CN103195388A CN103195388A CN2013101041678A CN201310104167A CN103195388A CN 103195388 A CN103195388 A CN 103195388A CN 2013101041678 A CN2013101041678 A CN 2013101041678A CN 201310104167 A CN201310104167 A CN 201310104167A CN 103195388 A CN103195388 A CN 103195388A
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Abstract
A two-plugging hole packer comprises a gas drainage pipe, a first expansion air bag, a second expansion air bag and a grouting pipe. The first expansion air bag and the second expansion air bag are elastic bags and are parallel to each other. The gas drainage pipe penetrates through the first expansion air bag and the second expansion air bag, and a gas drainage hole pipe is connected at the front end of the gas drainage pipe. The connection positions of the gas drainage pipe with the first expansion air bag and the second expansion air bag are respectively sealed. The grouting pipe penetrates through the first expansion air bag and penetrates into through one side of the second expansion air bag. The two-plugging hole packer overcomes defects of the existing polyurethane hole packing by being provided with the air bags at two ends for air filling and plugging and by aid of the grouting process.
Description
Technical field
The present invention relates to sealing of hole utensil field, especially relate to a kind of hole packer and shutoff grouting method.
Background technology
Increase to 15-18 rice according to " protrusion-dispelling administrative provisions " drilling and sealing segment length by original 5-8 rice, existing hole-sealing technology has not satisfied the needs of safety in production, existing gas extraction hole sealing of hole is mainly with the polyurethane material sealing of hole, but fix for polyurethane sealing of hole material foamed time under the situation that prescription is determined, foaming initial stage blowing agent belongs to flowable liquid, because the gas extraction hole length in each ore deposit, seal that empty length requirement differs and the pitch angle degree in hole is also different, each ore deposit geological conditions, being mingled with of bearing and spoil causes the straightness accuracy in extraction hole uneven, and the cleaning of bulk cinder totally all can not cause hole sealing tube binding polyurethane tape to insert inconvenient; For the elevation angle, the hole, the angle of depression of wide-angle, the initial stage of blowing agent, mobile very difficult control also caused sealing of hole not reach requirement, so the polyurethane sealing sky exists following shortcoming:
1, for the bigger envelope sky of sealing of hole angle, because that polyurethane exists is mobile, the empty position of envelope is difficult to fixing, does not reach the empty effect of envelope, the polyurethane material also can occur for the envelope sky at the big angle of depression and flow to the bottom, hole, stops up the gas drainage under suction pipe, influences the extraction of gas;
2, for the situation that porous dehiscence is arranged in the hole, also be certain because the amount of polyurethane is certain coefficient of foaming, therefore plugging hole fully influences the sealing of hole effect;
3, too fast also not being inserted at gas tube of foaming sometimes requires the position, and polyurethane has just foamed to rise broken and made the envelope sky not in place;
4, because the complexity of geographical conditions is holed sometimes and existed crookedly, and cinder is cleared up sordid situation and can be inserted also that polyurethane foam just foams less than correct position because of the gas drainage under suction pipe, the shutoff that influence is holed in the hole in;
5, also exist the atrophy phenomenon to make the shutoff in hole poorly sealed sometimes through long ingress of air behind the polyurethane sealing of hole, gas leakage influences the extraction of gas;
6, polyurethane belongs to macromolecular material, and there is potential safety hazard in inflammability than higher;
7, the poor electric conductivity of polyurethane, for static prevent poorly, for the safety of high gas environment the hidden danger effect is arranged;
8, polyurethane is subjected to the influence of environment temperature also bigger, and foamed time is just quite slow under the lower situation of temperature, influences the sealing of hole effect.
Summary of the invention
The object of the present invention is to provide a kind of two stifled hole packer and the shutoff grouting methods that can control the sealing of hole time, can after the gas drainage under suction pipe inserts the appropriate location, just begin slip casting, significantly improve plugging effect, avoided the potential safety hazard of polyurethane shutoff simultaneously.
Technical scheme of the present invention is:
Two stifled hole packers, comprise the gas drainage under suction pipe, also comprise the first swelling bag bag, second swelling bag bag and the Grouting Pipe, the described first swelling bag bag, the second swelling bag bag are the elastomeric bladder bag and are set up in parallel, described gas drainage under suction pipe passes from the first swelling bag bag, the second swelling bag bag, described gas drainage under suction pipe front end is connected with the gas extraction hole pipe, and described gas drainage under suction pipe and the first swelling bag bag, the second swelling bag bag junction all seal; Described Grouting Pipe is passed from the first swelling bag bag, Grouting Pipe penetrates from a side of the second swelling bag bag, the front end of Grouting Pipe is positioned at the second swelling bag bag, the end sealing of described front end, and the junction of described Grouting Pipe and the first swelling bag bag, the second swelling bag bag all seals; Described Grouting Pipe is provided with first pore in the first swelling bag bag, described Grouting Pipe is provided with second pore in the second swelling bag bag, described Grouting Pipe is provided with the 3rd pore between the first swelling bag bag and the second swelling bag bag, described first and second pore is provided with the gas unidirectional valve, and described the 3rd pore is provided with the gas sequence valve.
Described gas sequence valve is the closed rubber tube of two ends fixing seal on Grouting Pipe, and the two ends of fixing seal are positioned at the both sides of the 3rd pore.
Described gas unidirectional valve is the single open-type rubber tube of an end fixing seal on Grouting Pipe, and an end of fixing seal is positioned at a side of first pore or second pore.
Spacing is 15-18 rice between the described first swelling bag bag and the second swelling bag bag.
Described elastomeric bladder bag is the rubber bag tank bag.
Described gas drainage under suction pipe is connected to form by pipe, and the pipe junction is positioned at the both sides of the first swelling bag bag and the second swelling bag bag.
Described Grouting Pipe and gas drainage under suction pipe are parallel.
At first, the capsule bag of the first swelling bag bag and the second swelling bag bag is fixed on the gas drainage under suction pipe, the first swelling bag bag and the second swelling bag bag belong to deflated state in the unaerated situation, easily insert in the gas extraction hole; Grouting Pipe is provided with first pore at the first swelling bag bag, and Grouting Pipe is provided with second pore in the second swelling bag bag, and first pore and second pore are provided with the gas unidirectional valve; Grouting Pipe is provided with the 3rd pore between the first swelling bag bag and the second swelling bag bag, the 3rd pore is provided with sequence valve;
After being inserted into the correct position of gas extraction hole, earlier Grouting Pipe being inflated expands the first swelling bag bag and the second swelling bag bag, along with the expansion of the first swelling bag bag and the second swelling bag bag, the capsule bag of the first swelling bag bag and the second swelling bag bag touches the hole wall in extraction hole; Continue the pressure that inflation improves the capsule bag, after the pressure set points that reaches sequence valve, the sequence valve on the 3rd pore of Grouting Pipe is opened, and finishes shutoff this moment;
Then Grouting Pipe is carried out slip casting, because there is certain pressure in the air bag of the first swelling bag bag and the second swelling bag bag, slurries can flow to slip casting band position by second pore along with Grouting Pipe, finish injection hole sealing.
Described sequence valve comprises closed rubber tube, the explosion after reaching the pressure set points of rubber tube of described closed rubber tube.
The shortcoming that the present invention is directed to existing polyurethane sealing of hole existence has proposed two stifled hole packers and has adopted two ends gasbags inflation shutoff, and the technology of carrying out slip casting then overcomes the defective of existing polyurethane sealing of hole.
Innovative point of the present invention:
1, expansion type capsule bag sealing of hole is adopted at the two ends of gas drainage under suction pipe, and the capsule bag adopts high-elastic rubber, and its coefficient of expansion is big, and sealing of hole is tight;
2, the integration-in-one pipe is adopted in sealing of hole, slip casting, and after elastomeric bladder bag expansion sealing of hole, slip casting is carried out in the explosion of the thin-walled rubber mouth of pipe then;
3, the one-way fashion inflation is adopted in the inflation of capsule bag, after the grouting port explosion swelling bag bag gas can not flow backwards, can not release;
4, grouting port adopts thin-walled rubber tube (high-elastic rubber), and after gasbag pressure reached setting value, slip casting was carried out in the automatic explosion of meeting then.
Description of drawings
Fig. 1 is the structural representation of the present invention's two stifled hole packers;
Fig. 2 is the structural representation after the closed rubber tube explosion among Fig. 1;
Fig. 3 is inflation slip casting control principle figure of the present invention.
The specific embodiment
As shown in Figure 1, the present invention includes the gas extraction hole pipe 4 of gas drainage under suction pipe 1, Grouting Pipe 5 and porous, gas extraction hole pipe 4 is threaded in gas drainage under suction pipe 1 front end end, and gas drainage under suction pipe 1 and gas extraction hole pipe 4 are coaxial and diameter is identical.Gas drainage under suction pipe 1 by the identical pipe of many calibers by being threaded, all very convenient when installation and removal like this.
The present invention comprises that also the first swelling bag bag 2, the second swelling bag bag, 3, the first swelling bag bags 2, the second swelling bag bag 3 are the elastomeric bladder bag, is hollow cryptomere, and what the present invention adopted is the rubber bag tank bag.Gas drainage under suction pipe 1 passes from the first swelling bag bag 2, the second swelling bag bag 3, and the capsule bag inside of the first swelling bag bag 2, the second swelling bag bag 3 is cavity, is cylindrical after inflation.The first swelling bag bag 2, the second swelling bag bag 3 seal fully with the junction of gas drainage under suction pipe 1.Spacing can customize according to the actual requirements between the first swelling bag bag 2 and the second swelling bag bag 3, and present embodiment is 15-18 rice.The second swelling bag bag 3 is positioned at the front end of gas drainage under suction pipe 1.
When passing each capsule bag with gas drainage under suction pipe 1, Grouting Pipe 5 should not disturb mutually, preferred mode is that the two is parallel, the caliber of Grouting Pipe 5 is thinner, Grouting Pipe 5 is passed the first swelling bag bag 2, the second swelling bag bag 3, and Grouting Pipe 5 and the first swelling bag bag 2, the second swelling bag bag, 3 junctions equally also are hermetically-sealed constructions.But being enclosed in the second swelling bag bag 3, the front end of Grouting Pipe 5 do not penetrate.
Grouting Pipe 5 is provided with three pores, Grouting Pipe 5 offers first pore 6 in the first swelling bag bag 2, in the second swelling bag bag 3, offer second pore 7, first pore 6, second pore 7 are by 9 sealings of single open-type rubber tube, single open-type rubber tube 9 one ends at this two place are by complete sealing and fixing, the other end can be opened under the certain pressure effect, and its effect is equal to the gas unidirectional valve.Grouting Pipe 5 is provided with the 3rd pore 8 between the first swelling bag bag 2 and the second swelling bag bag 3, by closed rubber tube 11 sealings, but the rubber tube terminal that should locate is all sealed fixing, and closed rubber tube 11 can self-explosion after surpassing setting pressure.In addition the single open-type rubber tube 9 at two places is owing to there is an end not sealed fixing, thus can self-explosion, and its effect is equal to the gas sequence valve.The material of single open-type rubber tube 9 and closed rubber tube 11 is the thin-walled rubber tube.
As shown in Figure 2, after closed rubber tube 11 explosions of the 3rd pore 8 sealings, the 3rd pore 8 just becomes grouting port 8a, and the slurries that inject from Grouting Pipe 5 will be the 3rd pore 8 from grouting port 8a() overflow.
Method for blocking:
The capsule bag of the first swelling bag bag 2 and the second swelling bag bag 3 is fixed on the gas drainage under suction pipe 1, and the material itself of the first swelling bag bag 2 and the second swelling bag bag 3 belongs to flexible body, belongs to deflated state in the unaerated situation, can very light insertion gas extraction hole 10 in; After the correct position that is inserted into gas extraction hole 10, at first Grouting Pipe 5 being inflated expands the first swelling bag bag 2 and the second swelling bag bag 3, expansion along with the first swelling bag bag 2 and the second swelling bag bag 3, the hole wall of their contact gas extraction holes 10, the pressure of capsule bag is still in continuous rising, after reaching pressure set points, shutoff is finished in closed rubber tube 11 explosions on the 3rd pore 8 this moment.
As shown in Figure 2, then Grouting Pipe 5 is carried out slip casting, because there is certain pressure in air bag, slurries can be the 3rd pore 8 by grouting port 8a(along with Grouting Pipe 5) flow to slip casting band 12 positions (space that surrounds between the slip casting band 12 finger first swelling bag bags 2 and the second swelling bag bag 3), finish injection hole sealing.
As shown in Figure 3, be provided with gas unidirectional valve 13,14 on the pipeline of Grouting Pipe 5 successively, and gas sequence valve 15, gas unidirectional valve 13,14 is the corresponding control first swelling bag bag 2 and the second swelling bag bag 3 respectively, gas sequence valve 15 controls the 3rd pore 8.Inflation slip casting control principle: at first the pipeline to Grouting Pipe 5 fills gases at high pressure, and gas is discharged from each pore, and the first swelling bag bag 2 and the second swelling bag bag 3 expand; Treat that the capsule bag rises by big pressure when rising to sequence valve 15 pressure, sequence valve 15 explosions, one way valve 13,14 carries out unidirectional locked, and the first swelling bag bag 2 and the second swelling bag bag 3 are in swelling state, carry out injection hole sealing by injected hole 8a then.Sequence valve 15 is the closed rubber tube 11 among Fig. 1, and one way valve 13,14 is the single open-type rubber tube 9 among Fig. 1.
Because the own characteristic of cement grout, it does not exist flammable and the danger that produces static, therefore can there be potential safety hazard, slip casting is just carried out sealing of hole, slip casting after gas drainage under suction pipe 1 is being with the first swelling bag bag 2, the second swelling bag bag 3 to insert correct position together in addition, the therefore also not requirement of life period.
Claims (9)
1. two block up hole packers, comprise the gas drainage under suction pipe, it is characterized in that: also comprise the first swelling bag bag, second swelling bag bag and the Grouting Pipe, the described first swelling bag bag, the second swelling bag bag are the elastomeric bladder bag and are set up in parallel, described gas drainage under suction pipe passes from the first swelling bag bag, the second swelling bag bag, described gas drainage under suction pipe front end is connected with the gas extraction hole pipe, and described gas drainage under suction pipe and the first swelling bag bag, the second swelling bag bag junction all seal; Described Grouting Pipe is passed from the first swelling bag bag, Grouting Pipe penetrates from a side of the second swelling bag bag, the front end of Grouting Pipe is positioned at the second swelling bag bag, the end sealing of described front end, and the junction of described Grouting Pipe and the first swelling bag bag, the second swelling bag bag all seals; Described Grouting Pipe is provided with first pore in the first swelling bag bag, described Grouting Pipe is provided with second pore in the second swelling bag bag, described Grouting Pipe is provided with the 3rd pore between the first swelling bag bag and the second swelling bag bag, described first and second pore is provided with the gas unidirectional valve, and described the 3rd pore is provided with the gas sequence valve.
2. according to claim 1 two block up hole packers, it is characterized in that: described gas sequence valve is the closed rubber tube of two ends fixing seal on Grouting Pipe, and the two ends of fixing seal are positioned at the both sides of the 3rd pore.
3. according to claim 1 and 2 two block up hole packers, it is characterized in that: described gas unidirectional valve is the single open-type rubber tube of an end fixing seal on Grouting Pipe, and an end of fixing seal is positioned at a side of first pore or second pore.
4. according to claim 1 and 2 two block up hole packers, it is characterized in that: spacing is 15-18 rice between the described first swelling bag bag and the second swelling bag bag.
5. according to claim 1 and 2 two block up hole packers, it is characterized in that: described elastomeric bladder bag is the rubber bag tank bag.
6. according to claim 1 and 2 two block up hole packers, it is characterized in that: described gas drainage under suction pipe is connected to form by pipe, and the pipe junction is positioned at the both sides of the first swelling bag bag and the second swelling bag bag.
7. according to claim 1 and 2 two block up hole packers, it is characterized in that: described Grouting Pipe and gas drainage under suction pipe are parallel.
8. adopt as claim 1 ~ 7 as described in the two shutoff grouting methods that block up hole packers, it is characterized in that:
At first, the capsule bag of the first swelling bag bag and the second swelling bag bag is fixed on the gas drainage under suction pipe, the first swelling bag bag and the second swelling bag bag belong to deflated state in the unaerated situation, easily insert in the gas extraction hole; Grouting Pipe is provided with first pore at the first swelling bag bag, and Grouting Pipe is provided with second pore in the second swelling bag bag, and first pore and second pore are provided with the gas unidirectional valve; Grouting Pipe is provided with the 3rd pore between the first swelling bag bag and the second swelling bag bag, the 3rd pore is provided with sequence valve;
After being inserted into the correct position of gas extraction hole, earlier Grouting Pipe being inflated expands the first swelling bag bag and the second swelling bag bag, along with the expansion of the first swelling bag bag and the second swelling bag bag, the capsule bag of the first swelling bag bag and the second swelling bag bag touches the hole wall in extraction hole; Continue the pressure that inflation improves the capsule bag, after the pressure set points that reaches sequence valve, the sequence valve on the 3rd pore of Grouting Pipe is opened, and finishes shutoff this moment;
Then Grouting Pipe is carried out slip casting, because there is certain pressure in the air bag of the first swelling bag bag and the second swelling bag bag, slurries can flow to slip casting band position by second pore along with Grouting Pipe, finish injection hole sealing.
9. shutoff grouting method according to claim 8, it is characterized in that: described sequence valve comprises closed rubber tube, the explosion after reaching the pressure set points of rubber tube of described closed rubber tube.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101041678A CN103195388A (en) | 2013-03-28 | 2013-03-28 | Two-plugging hole packer and plugging grouting method |
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| CN2013101041678A CN103195388A (en) | 2013-03-28 | 2013-03-28 | Two-plugging hole packer and plugging grouting method |
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| CN103334714A (en) * | 2013-07-23 | 2013-10-02 | 蔡长辉 | Bag device for quickly sealing holes |
| CN103437736A (en) * | 2013-08-05 | 2013-12-11 | 洛阳烨翔实业有限公司 | Rapidly-assembled type grouting and hole sealing device |
| CN103485747A (en) * | 2013-09-23 | 2014-01-01 | 陕西煤业化工技术研究院有限责任公司 | Automatic pressure-adding borehole sealing device and method |
| CN103590782A (en) * | 2013-11-28 | 2014-02-19 | 华北科技学院 | Under-pressure grouting hole sealing device and method for gas extraction drill air bag blocking |
| CN104314508A (en) * | 2014-08-19 | 2015-01-28 | 徐州中矿贝壳迈宁矿业科技有限公司 | Hole sealing method for coal bed gas drainage drill hole |
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| CN106639962A (en) * | 2016-10-17 | 2017-05-10 | 华北理工大学 | Secondary hole sealing and pressure measuring device based on expanding agents |
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| CN103334714A (en) * | 2013-07-23 | 2013-10-02 | 蔡长辉 | Bag device for quickly sealing holes |
| CN103437736A (en) * | 2013-08-05 | 2013-12-11 | 洛阳烨翔实业有限公司 | Rapidly-assembled type grouting and hole sealing device |
| CN103485747A (en) * | 2013-09-23 | 2014-01-01 | 陕西煤业化工技术研究院有限责任公司 | Automatic pressure-adding borehole sealing device and method |
| CN103485747B (en) * | 2013-09-23 | 2016-08-10 | 陕西煤业化工技术研究院有限责任公司 | A kind of automatic compensation borehole sealing device and method |
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| CN105545250A (en) * | 2016-01-21 | 2016-05-04 | 淮南久辉工贸有限责任公司 | Deep sealing type hole sealing device and hole sealing method |
| CN105756599A (en) * | 2016-04-29 | 2016-07-13 | 史买林 | Coal mine two-end gas plug and middle water seal layer penetrating drill hole sealing device and method |
| CN105971661A (en) * | 2016-06-28 | 2016-09-28 | 淮南矿业(集团)有限责任公司 | Point injection type hole sealing device |
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| CN110424924A (en) * | 2019-09-04 | 2019-11-08 | 高九华 | Bag type paste blowout prevention hole sealing device |
| CN110984904A (en) * | 2019-10-29 | 2020-04-10 | 东北大学 | Air pressure type separation high-pressure liquid injection device and method for complex fractured rock mass |
| CN110984904B (en) * | 2019-10-29 | 2021-06-18 | 东北大学 | Air pressure type separation high-pressure liquid injection device and method for complex fractured rock mass |
| CN112267848A (en) * | 2020-10-23 | 2021-01-26 | 中国矿业大学 | Grouting method and device capable of automatically sealing holes and preventing grouting pump pipeline from being blocked |
| CN112267848B (en) * | 2020-10-23 | 2021-11-09 | 中国矿业大学 | Grouting method and device capable of automatically sealing holes and preventing grouting pump pipeline from being blocked |
| CN113202446A (en) * | 2021-06-25 | 2021-08-03 | 河南理工大学 | Reusable hole packer for coal mine underground gas extraction cross-layer drilling and operation method thereof |
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| CN114718100B (en) * | 2022-03-22 | 2023-11-10 | 浙江省建筑设计研究院 | Water-stop grouting construction method |
| CN115075769A (en) * | 2022-06-22 | 2022-09-20 | 中国煤炭地质总局勘查研究总院 | Gas extraction drilling and hole sealing device and method |
| CN116677345A (en) * | 2023-06-02 | 2023-09-01 | 山西实瑞达管业有限公司 | Hole packer for gas drainage |
| CN116677345B (en) * | 2023-06-02 | 2023-11-24 | 山西实瑞达管业有限公司 | Hole packer for gas drainage |
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Application publication date: 20130710 |