CN101666240A - High-pressure water jet anti-outburst permeable system for mine - Google Patents
High-pressure water jet anti-outburst permeable system for mine Download PDFInfo
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- CN101666240A CN101666240A CN200910024080A CN200910024080A CN101666240A CN 101666240 A CN101666240 A CN 101666240A CN 200910024080 A CN200910024080 A CN 200910024080A CN 200910024080 A CN200910024080 A CN 200910024080A CN 101666240 A CN101666240 A CN 101666240A
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- sebific duct
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Abstract
The invention discloses a high-pressure water jet anti-outburst permeable system for a mine, which comprises a high-pressure pump station and a hose propeller. The high-pressure pump station pressurizes water in a water tank and continuously pumps the water in a main pipeline; the hose propeller pushes a high-pressure hard hose to advance; an inlet of the high-pressure pump station is communicatedwith an outlet of the water tank; an outlet of the high-pressure pump station is communicated with the high-pressure hard hose by a high-pressure hose; the high-pressure hard hose penetrates throughthe hose propeller and is communicated with an inlet of a voltage stabilizer; an outlet of the voltage stabilizer is communicated with an inlet of a rotary joint; an outlet of the rotary joint is communicated with an inlet of a self-rotary joint; and a hose propelling controller is connected with the hose propeller and an electric motor I. The system has low label intensity, low degree of automation, wide serviceable range, low production cost and high coal bed gas pumping efficiency.
Description
Technical field
The invention belongs to the safety of coal mines technical field, relate to a kind of coal mine gas treating apparatus, be specifically related to a kind of high-pressure water jet anti-outburst permeable system for mine.
Background technology
Meeting produces inflammable and explosive gas in the Coal Production process, is very easy to bring out when especially the content of gas is for 5%-16% cause exploding, and gas drainage under suction is the essential measure of control colliery disaster accident.For the production safety in colliery, at present, three kinds of measures of handling gas are arranged usually, the one, by strengthening wind supply quantity, the gas bearing capacity in the dilution colliery; The 2nd, the way of shutoff is taked at gas leakance position, the 3rd, the way by suction is discharged to other places with gas from the big part of concentration.The prerequisite that these three kinds of measures obtain better effects is gas thoroughly need be discharged from the coal seam.Original gas permeability of coal seam is poor, and the gas bearing capacity height at present, increase the gas permeability in original coal seam usually with the method for beating extraction hole, coal seam, but this method labour intensity is big, and automaticity is low, and cost of production height and coal bed gas drainage efficient are low.
Summary of the invention
Technical problem to be solved by this invention is at above-mentioned deficiency of the prior art, a kind of high-pressure water jet anti-outburst permeable system for mine is provided, this system is based on high-pressure water jet cutting theory, by high-pressure water jet extraction hole, coal seam is cut with anti-reflection, increased the gas permeability in coal seam.By adjusting device parameter, can be adapted to the different soft and hard coal seam, can not cause the hole of collapsing, plug-hole phenomenon.This system's labour intensity is low, the automaticity height, and the scope of application is wide, the low and coal bed gas drainage efficient height of cost of production.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of high-pressure water jet anti-outburst permeable system for mine, comprise the sebific duct propeller that the pressurization of the water in water tank back is injected the high pressure pumping plant in the main line continuously and advanced high pressure hard sebific duct to advance, it is characterized in that: described high pressure pumping plant inlet is connected with the water tank outlet, the outlet of high pressure pumping plant is communicated with high pressure hard sebific duct by high-pressure hose, high pressure hard sebific duct passes the sebific duct propeller and is connected with the stabilizator inlet, the outlet of described stabilizator is connected with the swivel joint inlet, and the swivel joint outlet is connected with the Spin spray head inlet; The sebific duct forward controller links to each other with motor one with the sebific duct propeller.
Described high pressure hard sebific duct is made up of inner glue layer, mesoglea, enhancement layer and outer glue-line, and enhancement layer is entwined by 2 layers, 4 layers or 6 layers of steel wire.
Off-centre is provided with nozzle bore on the described Spin spray head, and nozzle bore is through the nozzle that has been threaded, and nozzle interior is provided with flow stabilizing valve, and the nozzle end face is provided with water jet.
Described high pressure hard sebific duct is connected by screw thread with the stabilizator inlet.
The outlet of described stabilizator is connected by screw thread with the swivel joint inlet.
Described swivel joint outlet is connected by screw thread with Spin spray head
The switch of described motor two is a flame-proof switch.
The rated pressure of described high pressure pumping plant is 70MPa, and flow is 70L/min.
The present invention compared with prior art has the following advantages:
(1) labour intensity is low; The work of forward controller control sebific duct propeller makes high pressure hard sebific duct advance according to job requirement, need not the artificial location that advances, and labour intensity is low;
(2) automaticity height uses easy and simple to handle; Automatic control program according to the design of high-pressure water jet anti-outburst permeable system for mine operation characteristic can make controller control the work of this system automatically, need not manually-operated;
(3) stable, compact conformation; System operates steadily in the course of work, high pressure hard sebific duct safety durable, and the reliability height can be guaranteed high-pressure water jet anti-outburst permeable system for mine operation steady in a long-term.
(4) scope of application is wide; Not only can use the safety of coal mines field, also can be used for fields such as pipeline rust cleaning;
(5) the low coal bed gas drainage efficient height of cost of production; By experimental data as can be known, use this system that the gas drainage under suction amount is improved more than 3 times, gas drainage under suction speed improves more than 3 times, and coal bed gas drainage efficient and protrusion-dispelling effect significantly improve.
Below by drawings and Examples, the present invention is described in further detail.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention.
Fig. 2 is the front view of Spin spray head of the present invention.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the front view of nozzle of the present invention.
Fig. 5 is the B-B sectional view of Fig. 4.
Description of reference numerals:
1-high pressure pumping plant; The 2-water tank; The 3-high-pressure hose;
4-high pressure hard sebific duct; 5-sebific duct propeller; The 6-stabilizator;
The 7-swivel joint; The 8-Spin spray head; The 9-forward controller;
10-motor one; 11-motor two; The 12-flame-proof switch
The 13-nozzle bore; The 14-nozzle; The 15-flow straightener;
The 16-water jet; The 17-compression leg; Extraction hole, 18-coal seam.
The specific embodiment
A kind of high-pressure water jet anti-outburst permeable system for mine as shown in Figure 1, comprise the sebific duct propeller 5 that the pressurization of the water in the water tank 2 back is injected the high pressure pumping plant 1 in the main line continuously and advanced high pressure hard sebific duct 4 to advance, described high pressure pumping plant 1 inlet is communicated with water tank 2 outlets, 1 outlet of high pressure pumping plant is connected with high pressure hard sebific duct 4 by high-pressure hose 3, high pressure hard sebific duct 4 passes sebific duct propeller 5 and is connected with stabilizator 6 inlets, the outlet of described stabilizator 6 is connected with swivel joint 7 inlets, and swivel joint 7 outlets are connected with Spin spray head 8 inlets; Sebific duct forward controller 9 links to each other with motor 1 with sebific duct propeller 5.
As shown in Figure 1, high pressure hard sebific duct 4 is made up of inner glue layer, mesoglea, enhancement layer and outer glue-line, and enhancement layer is entwined by 2 layers, 4 layers or 6 layers of steel wire.The inner glue layer of anti-liquid, mesoglea and outer glue-line make high pressure hard sebific duct 4 have better water proofing property, and the protection steel wire does not weather, and outer glue-line also plays the injury-free effect of protection steel wire simultaneously.Steel wire floor (2 layers or 4 layers, the 6 layers enhancement layer that steel wire twines) is a framework material, play humidification, can make high pressure hard sebific duct 4 have better intensity and hardness, because high pressure hard sebific duct 4 has very high hardness, when the compression leg 17 of sebific duct propeller 5 clamped high pressure hard sebific duct 4, high pressure hard sebific duct 4 can be by the flat distortion of folder; Simultaneously because high pressure hard sebific duct 4 has very high intensity, when the compression leg 17 of sebific duct propeller 5 clamped high pressure hard sebific ducts 4 and advances, that high pressure hard sebific duct 4 advances was smooth and easy, bending can not give a discount.
Shown in Fig. 2,3,4 and 5, off-centre is provided with nozzle bore 13 on the Spin spray head 8, and nozzle bore 13 is through the nozzle 14 that has been threaded, and nozzle 14 inside are provided with flow stabilizing valve 15, and nozzle 14 end faces are provided with water jet 16.
As shown in Figure 1, high pressure hard sebific duct 4 is connected by screw thread with stabilizator 6 inlets.
As shown in Figure 1, the outlet of stabilizator 6 is connected by screw thread with swivel joint 7 inlets.
As Fig. 1, Fig. 2 and shown in Figure 3, swivel joint 7 outlet and Spin spray head 8 are connected by screw thread.
As Fig. 1 and shown in Figure 5, the switch of motor 2 11 is a flame-proof switch 12.Flame-proof switch 12 has good sealing property, can prevent electric spark in the switch extraneous inflammable and explosive gas that ignites, use flame-proof switch 12 can increase high-pressure water jet anti-outburst permeable system for mine safety in use greatly, make safety of coal mines obtain sound assurance.
As shown in Figure 1, the rated pressure of high pressure pumping plant 1 is 70MPa, and flow is 70L/min.When the rated pressure of pumping plant 1 is 70MPa, can make that current have very high pressure and flow velocity in the water jet 16 in working angles, thereby current be cut and anti-reflection quick more smooth in the coal seam; When the flow of pumping plant 1 was 70L/min, the discharge by water jet 16 in working angles was bigger, thereby makes extraction hole, coal seam 18 deslagginves more smooth.
As shown in Figure 1, high pressure hard sebific duct 4 input hole depths are more than the 100m.High pressure hard sebific duct 4 input hole depths are more than the 100m, can guarantee the forward travel distance of high pressure hard sebific duct 4 extraction hole, coal seam 18 in more than 100m, thus make once cut and anti-reflection coal seam thicker.
The course of work of the present invention is: at first Spin spray head 8 is put into the 18 A station places, extraction hole, coal seam of having bored, open flame-proof switch 11, start high pressure pumping plant 1, high pressure pumping plant 1 is extracted the water in the water tank 2 out and is pressurized to 70MPa, and is more than the 70L/min with flow-control.High-Pressure Water flow through high-pressure hose 3, high pressure hard sebific duct 4, flow straightener 6 and swivel joint 7, enter Spin spray head 8, High-Pressure Water promotes Spin spray head 8, make its automatic rotation, High-Pressure Water is through behind flow stabilizing valve 15 current stabilizations of nozzle 14 simultaneously, the high-pressure water jet that sprays 1.6 millimeters cuts with anti-reflection the coal seam, forms the coal seam joint-cutting at the A station.
After A station joint-cutting is finished, the compression leg 17 of sebific duct forward controller 9 control sebific duct propellers 5 clamps high pressure hard sebific duct 4, when compression leg 17 clamps high pressure hard sebific duct 4, sebific duct propeller 5 promotes high pressure hard sebific duct 4 forward, make Spin spray head 8 advance to B (next one) cutting work station, high pressure pumping plant 1 is extracted the water in the water tank 2 out and is pressurized to 70MPa, and is more than the 70L/min with flow-control.High-Pressure Water flow through high-pressure hose 3, high pressure hard sebific duct 4, flow straightener 6 and swivel joint 7, enter Spin spray head 8, High-Pressure Water promotes Spin spray head 8, make its automatic rotation, High-Pressure Water is through behind flow stabilizing valve 15 current stabilizations of nozzle 14 simultaneously, the high-pressure water jet that sprays 1.6 millimeters cuts with anti-reflection the coal seam, forms the coal seam joint-cutting at the B station.
The B cutting work station finish cutting and anti-reflection after, can enter next cutting work station, in like manner multistation cutting and anti-reflection is carried out in the Spin spray head 8 extraction hole that can progressively go deep into the coal seam, thereby makes gas in the coal seam through 18 each joint-cuttings discharge coal seams, extraction hole, coal seam.
After each cutting work station joint-cutting is finished in the extraction hole, coal seam 18, the compression leg 17 of sebific duct forward controller 9 control sebific duct propellers 5 clamps high pressure hard sebific duct 4, clamp high pressure hard sebific duct 4 simultaneously at compression leg 17, sebific duct propeller 5 drags high pressure hard sebific duct 4 backward, thereby Spin spray head 8 is retreated to last cutting work station, the compression leg 17 of sebific duct forward controller 9 control sebific duct propellers 5 unclamps high pressure hard sebific duct 4, and sebific duct propeller 5 slides into original position forward simultaneously.Repeat above action,, turn off flame-proof switch 11 then from extraction hole, coal seam 18, close high pressure pumping plant 1, finish the cutting in extraction hole, coal seam 18 and anti-reflection until hard sebific duct 4 is all extracted out.
According to the difference of seam hardness, can select the high-pressure water jet of different pressures and different flow for use, thereby the speed of Spin spray head rotation is adjusted in the scope that 200-1500 changes.High-pressure water jet the coal seam is cut with anti-reflection in, the cinder that current can drive cutting-out 18 is discharged through extraction hole, coal seam.
The above; it only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every according to the technology of the present invention essence to any simple modification, change and equivalent structure transformation that above embodiment did, all still belong in the protection domain of technical solution of the present invention.
Claims (8)
1. high-pressure water jet anti-outburst permeable system for mine, comprise the sebific duct propeller (5) that the pressurization of the water in the water tank (2) back is injected the high pressure pumping plant (1) in the main line continuously and advanced high pressure hard sebific duct (4) to advance, it is characterized in that: described high pressure pumping plant (1) inlet is communicated with water tank (2) outlet, high pressure pumping plant (1) outlet is communicated with high pressure hard sebific duct (4) by high-pressure hose (3), high pressure hard sebific duct (4) passes sebific duct propeller (5) and is connected with stabilizator (6) inlet, the outlet of described stabilizator (6) is connected with swivel joint (7) inlet, and swivel joint (7) outlet is connected with Spin spray head (8) inlet; Sebific duct forward controller (9) links to each other with motor one (10) with sebific duct propeller (5).
2. according to the described high-pressure water jet anti-outburst permeable system for mine of claim 1, it is characterized in that: described high pressure hard sebific duct (4) is made up of inner glue layer, mesoglea, enhancement layer and outer glue-line, and enhancement layer is entwined by 2 layers, 4 layers or 6 layers of steel wire.
3. according to the described high-pressure water jet anti-outburst permeable system for mine of claim 1, it is characterized in that: Spin spray head (8) is gone up off-centre and is provided with nozzle bore (13), nozzle bore (13) is through the nozzle that has been threaded (14), nozzle (14) inside is provided with flow stabilizing valve (15), and nozzle (14) end face is provided with water jet (16).
4. according to the described high-pressure water jet anti-outburst permeable system for mine of claim 1, it is characterized in that: described high pressure hard sebific duct (4) is connected by screw thread with stabilizator (6) inlet.
5. according to the described high-pressure water jet anti-outburst permeable system for mine of claim 1, it is characterized in that: the outlet of described stabilizator (6) is connected by screw thread with swivel joint (7) inlet.
6. according to the described high-pressure water jet anti-outburst permeable system for mine of claim 1, it is characterized in that: described swivel joint (7) outlet is connected by screw thread with Spin spray head (8).
7. according to the described high-pressure water jet anti-outburst permeable system for mine of claim 1, it is characterized in that: the switch of motor two (11) is flame-proof switch (12).
8. according to the described high-pressure water jet anti-outburst permeable system for mine of claim 1, it is characterized in that: the rated pressure of described high pressure pumping plant (1) is 70MPa, and flow is 70L/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910024080A CN101666240A (en) | 2009-09-27 | 2009-09-27 | High-pressure water jet anti-outburst permeable system for mine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910024080A CN101666240A (en) | 2009-09-27 | 2009-09-27 | High-pressure water jet anti-outburst permeable system for mine |
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| CN101666240A true CN101666240A (en) | 2010-03-10 |
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| CN200910024080A Pending CN101666240A (en) | 2009-09-27 | 2009-09-27 | High-pressure water jet anti-outburst permeable system for mine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296982A (en) * | 2011-05-15 | 2011-12-28 | 太原理工大学 | Method for electrochemically strengthening desorption and seepage of coal gas |
| CN102465712A (en) * | 2010-11-15 | 2012-05-23 | 湖南汉寿中煤科技有限公司 | Drilling-cutting-linked coal layer gas drainage and outburst prevention system and method based on ultra-long drilling and high-pressure water jetting |
| CN102518412A (en) * | 2011-12-29 | 2012-06-27 | 郑州大学 | Method for mining coal and gas by hydraulic jet grouting washout |
| CN102817631A (en) * | 2012-08-20 | 2012-12-12 | 山西煤炭运销集团科学技术研究有限公司 | Method for draining gas of upper adjacent layer of mine |
| CN103883332A (en) * | 2014-02-28 | 2014-06-25 | 北京市市政工程研究院 | Method and device for reinforcing fine sand layers |
| CN104061014A (en) * | 2014-07-07 | 2014-09-24 | 太原理工大学 | Coal seam anti-reflection experiment device based on high-voltage electric pulse |
| CN108086901A (en) * | 2017-12-12 | 2018-05-29 | 中煤科工集团重庆研究院有限公司 | A kind of netted slot anti-reflection method of layer-through drilling |
| CN110953013A (en) * | 2019-12-05 | 2020-04-03 | 中煤科工集团西安研究院有限公司 | Controllable jet flow punching pressure relief and permeability increase device and method for soft coal seam |
-
2009
- 2009-09-27 CN CN200910024080A patent/CN101666240A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102465712A (en) * | 2010-11-15 | 2012-05-23 | 湖南汉寿中煤科技有限公司 | Drilling-cutting-linked coal layer gas drainage and outburst prevention system and method based on ultra-long drilling and high-pressure water jetting |
| CN102465712B (en) * | 2010-11-15 | 2015-01-28 | 湖南汉寿中煤科技有限公司 | Drilling-cutting-linked coal layer gas drainage and outburst prevention system and method based on ultra-long drilling and high-pressure water jetting |
| CN102296982A (en) * | 2011-05-15 | 2011-12-28 | 太原理工大学 | Method for electrochemically strengthening desorption and seepage of coal gas |
| CN102296982B (en) * | 2011-05-15 | 2013-05-08 | 太原理工大学 | Method for electrochemically strengthening desorption and seepage of coal gas |
| CN102518412A (en) * | 2011-12-29 | 2012-06-27 | 郑州大学 | Method for mining coal and gas by hydraulic jet grouting washout |
| CN102817631A (en) * | 2012-08-20 | 2012-12-12 | 山西煤炭运销集团科学技术研究有限公司 | Method for draining gas of upper adjacent layer of mine |
| CN102817631B (en) * | 2012-08-20 | 2014-11-05 | 山西煤炭运销集团科学技术研究有限公司 | Method for draining gas of upper adjacent layer of mine |
| CN103883332A (en) * | 2014-02-28 | 2014-06-25 | 北京市市政工程研究院 | Method and device for reinforcing fine sand layers |
| CN104061014A (en) * | 2014-07-07 | 2014-09-24 | 太原理工大学 | Coal seam anti-reflection experiment device based on high-voltage electric pulse |
| CN104061014B (en) * | 2014-07-07 | 2016-03-02 | 太原理工大学 | A kind of coal seam anti-reflection experimental device based on high electric field pulse |
| CN108086901A (en) * | 2017-12-12 | 2018-05-29 | 中煤科工集团重庆研究院有限公司 | A kind of netted slot anti-reflection method of layer-through drilling |
| CN110953013A (en) * | 2019-12-05 | 2020-04-03 | 中煤科工集团西安研究院有限公司 | Controllable jet flow punching pressure relief and permeability increase device and method for soft coal seam |
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Open date: 20100310 |