CN102678164A - Hole sealing device for multi-parameter testing of coal mine underground gas - Google Patents
Hole sealing device for multi-parameter testing of coal mine underground gas Download PDFInfo
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- CN102678164A CN102678164A CN2011100626702A CN201110062670A CN102678164A CN 102678164 A CN102678164 A CN 102678164A CN 2011100626702 A CN2011100626702 A CN 2011100626702A CN 201110062670 A CN201110062670 A CN 201110062670A CN 102678164 A CN102678164 A CN 102678164A
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Abstract
The invention discloses a hole sealing device for multi-parameter testing of coal mine underground gas. The device comprises a box body of which the top is provided with a feed port and the bottom is provided with a discharge port, wherein a stirring shaft is vertically arranged in the box body; a power blade and a stirring blade are arranged on the stirring shaft; an air inlet and an air outlet are formed on the box body; the air inlet is correspondingly formed on one side of the power blade; the air outlet is formed on the other side of the power blade; and the air inlet is connected with a high-pressure air pipe. The device is high-efficiency and simple hole sealing equipment for testing gas related parameters such as coal mine underground pressure, gas flow, a gas flow attenuation coefficient and a coal bed air permeability coefficient, and extracting gas.
Description
Technical field
The present invention relates to disclose the high-efficient simple sealing of hole equipment that a kind of coal mine gas multi-parameters test hole sealing device can carry out test of gas relevant parameters such as colliery well pressure measuring, gas flow test, the test of gas flow attenuation factor, the test of gas permeability of coal seam coefficient and gas pumping.
Background technology
Coal-bed gas pressure is as one of important coal-bed gas parameter, and character (low gaseous mine, highly gassy mine, projecting mine), Forecast of Gas Emission and the gas control etc. of mine are had important directive function.The accuracy of coal-bed gas pressure test has been directly connected to the safety in production of mine.
Simultaneously; The test of coal-bed gas flow, gas flow attenuation factor, gas permeability of coal seam coefficient etc. and the quality and quantity of coal-bed gas extraction also have substantial connection; The accuracy of these parameter testings has been directly connected to the type selecting of drainage from coal seam equipment, the selection of extraction pipeline, the effect of gas pumping.
The main sealing material of current China coal-bed gas pressure, the isoparametric test of gas flow has that polyurethane, cement mortar, horse are beautiful to loose etc.Sealing of hole equipment (hole-sealing pump) is power with wind or electricity generally, and operation is difficulty comparatively, and the special-purpose hole-sealing pump of the beautiful diffusing grade of horse also needs the professional and technical personnel that it is carried out sealing of hole, and operation is comparatively complicated.And the hole-sealing pump price is higher.Cushion rubber mucus sealing of hole (the 4th generation (MWYZ-HIV) gas pressure tester) is as a kind of novel gas pressure break test hole sealing device; The sealing of hole effect is better; But in the whole process of sealing of hole, need the special messenger to observe the pressure of sealing of hole capsule constantly,, carry out pressurising to it immediately in case pressure descends; Otherwise can influence sealing quality, and this equipment cost is higher relatively.
The coal-bed gas extraction is adopted by the most high prominent mines of China as the important channel of administering gas, and the quality of sealing of hole effect is seriously restricting the extraction effect of gas." the outstanding regulation of control coal and gas " the 50: " the gas pumping borehole sealing must be tight in advance.The sealing of hole segment length of layer-through drilling must not be less than 5m, must not be less than 8m along the sealing of hole segment length of layer boring ".But because the restriction of factors such as underworkings condition, workman's operant level, be difficult at present seal and require length by manpower.The sealing of hole equipment that is specifically designed to gas pumping has also been studied by related scientific research enterprise, but because operation is comparatively loaded down with trivial details, the workman is unwilling to use, and does not obtain excellent popularization and application.
Summary of the invention
The purpose of this invention is to provide a kind of high-efficient simple sealing of hole equipment that is used for coal mine underground coal bed gas multi-parameters test.
For realizing above-mentioned purpose; The present invention adopts following technical scheme: a kind ofly be used for coal mine underground coal bed gas multi-parameters test hole sealing device; Comprise that the top is provided with the casing that charging aperture, bottom are provided with discharging opening, vertically be provided with shaft in the casing, shaft is provided with power blade and stirring vane; Casing is provided with air intake and air outlet, and said air intake correspondence is arranged at power blade one side, and air outlet is arranged at the power blade opposite side, and air intake is connected with high-pressure air hose.
Said charging aperture, discharging opening, air intake and air outlet are equipped with ball valve.
Said casing is the seal case that the top is provided with top pressure closure.
Level is provided with the support of bearing in the casing, is provided with deep groove ball bearing between the support of bearing and the shaft; The top pressure closure soffit is provided with the taper roll bearing that cooperates with shaft.
Said power blade and stirring vane are for being provided with up and down, and the support of bearing is between power blade and stirring vane.
During use; Air intake connects the existing air pipeline in ore deposit side; Be mining blast (general work face airduct blast is greater than 0.4MPa), high-pressure blast injects casing through air intake, is connected to ambient atmosphere through air outlet; Utilize the power blade rotation of the blast official post of air intake and air outlet generation, drive stirring vane and stir over against air intake.Simultaneously, under pressing wind action, make stir material in the casing through discharging opening inject constructed accomplish treat envelope boring, be equipment normal operation power with this blast, simultaneously, the size of blast has determined the degree of depth of vertical sealing of hole.Charging aperture can inject different materials according to concrete sealing of hole needs; If carry out the sealing of hole pressure measurement with cement mortar, at first inject water through charging aperture, cement and sand afterwards reinject; Make it to mix through the stirring vane stirring; When the airduct blast is 0.4MPa, use this device to carry out the pressure measurement sealing of hole, sealed borehole length is not less than 20m.Carry out the extraction borehole sealing of hole with polyurethane, can two kinds of polyurethane A liquid and B liquid be injected the stirring casing through charging aperture simultaneously, carry out sealing of hole.Air outlet also can be used as observation panel.The present invention has that sealed borehole length is long, cost of manufacture is low, simple to operate, sealing of hole efficient high, be easy to safeguard, be convenient to carrying, the down-hole is suitable for characteristics such as the place is wide, reusable.Technical barriers such as present gas pressure test difficulty, the extraction hole sealed borehole length of solution that can low-cost high-efficiency is short.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the axial arrangement sketch map of power blade.
The specific embodiment
By a kind of coal mine gas multi-parameters test hole sealing device illustrated in figures 1 and 2; Comprise that the top is provided with the seal case 5 of top pressure closure 1, top pressure closure 1 is provided with charging aperture 3, and seal case 5 bottoms are provided with discharging opening 18; Seal case 5 bottoms are provided with bearing 20; Dual-side is provided with air intake 10 and air outlet 12 on the seal case 5, vertically is provided with shaft 7 in the seal case 5, is arranged with power blade 6 and stirring vane 17 on the shaft 7; Three leaves of power blade 6 circumferentially evenly distribute, and promptly α is 120 °.Level is provided with the support of bearing 11 in the seal case 5 between power blade 6 and the stirring vane 17; Be installed with fixed support 14 in the seal case 5; The support of bearing 11 is fixedly connected in the seal case 5 through bolt 16; Be provided with deep groove ball bearing 15 between the support of bearing 11 and the shaft 7, top pressure closure 1 soffit is provided with the taper roll bearing 2 that cooperates with shaft 7.Said air intake 10 correspondences are arranged at power blade 6 one sides; Air outlet 12 is arranged at power blade 6 opposite sides; Air intake 10 is connected with high-pressure air hose 21, is respectively equipped with charging aperture ball valve 4, discharging opening ball valve 19, air intake ball valve 9 and air outlet 13 ball valves on said charging aperture 3, discharging opening 18, air intake 10 and the air outlet 12.
Concrete use is following:
(1) air intake 10 connects the high-pressure air hose 21 that the ore deposit has, and discharging opening 18 connects the sealing of hole injection hose;
(2) close air intake ball valve 9, discharging opening ball valve 19, open charging aperture ball valve 4 and air outlet ball valve 13.Inject sealing materials to casing 5 in through charging aperture 3, have sealing material to overflow to air outlet 12, stop from charging aperture 3 injection sealing materials.Close charging aperture ball valve 4.
(3) open air intake ball valve 9, input high-pressure blast, high-pressure blast blow power blade 6 and rotate, and drive stirring vane 17 and stir, and confirm mixing time according to the stirring material difference.After stirring completion, close air outlet ball valve 13, open discharging opening ball valve 19, sealing material carries out sealing of hole through discharging opening 18 in the hole sealing tube injection hole, close air intake ball valve 9 when stopping sealing of hole;
(4) after sealing of hole is accomplished, open air outlet ball valve 13, charging aperture ball valve 4, close discharging opening ball valve 19, open air intake ball valve 9 behind the injection clear water, casing 5 grades are cleaned.But opening encapsulation top cover 1 after long-term the use, the bolt 16 that comes loose takes out power blade 6, stirring vane 17, and shaft 7 cleans.
During use; Air intake 10 connects the existing air pipeline in ore deposit side through high-pressure air hose 21; Be mining blast (general work face airduct blast is greater than 0.4MPa), high-pressure blast injects casing 5 through air intake 10, is connected to ambient atmosphere through air outlet 12; Utilize power blade 6 rotations of the blast official post of air intake 10 and air outlet 12 generations, drive stirring vane 17 and stir over against air intake 10.Simultaneously, under pressing wind action, making and stir in the casing 5 material and inject the envelope of accomplishing of treating of having constructed through discharging opening 18 and hole, is equipment normal operation power with this blast, and simultaneously, the size of blast has determined the degree of depth of vertical sealing of hole.Charging aperture 3 can inject different materials according to concrete sealing of hole needs; If carry out the sealing of hole pressure measurement with cement mortar, at first inject sand through charging aperture 3, cement and sand afterwards reinject; Make it to mix through stirring vane 17 stirrings; When high-pressure air hose 21 blast are 0.4MPa, use this device to carry out the pressure measurement sealing of hole, sealed borehole length is not less than 20m.Carry out the extraction borehole sealing of hole with polyurethane, can two kinds of polyurethane A liquid and B liquid be injected stirring casing 5 through charging aperture 3 simultaneously, carry out sealing of hole.Air outlet 12 also can be used as observation panel.
Claims (5)
1. coal mine gas multi-parameters test hole sealing device is characterized in that: comprise that the top is provided with the casing that charging aperture, bottom are provided with discharging opening, vertically be provided with shaft in the casing, shaft is provided with power blade and stirring vane; Casing is provided with air intake and air outlet, and said air intake correspondence is arranged at power blade one side, and air outlet is arranged at the power blade opposite side, and air intake is connected with high-pressure air hose.
2. coal mine gas multi-parameters test hole sealing device as claimed in claim 2, it is characterized in that: said charging aperture, discharging opening, air intake and air outlet are equipped with ball valve.
3. like the described coal mine gas multi-parameters test of claim 1-3 hole sealing device device, it is characterized in that: said casing is the seal case that the top is provided with top pressure closure.
4. coal mine gas multi-parameters test hole sealing device as claimed in claim 4 is characterized in that: level is provided with the support of bearing in the casing, is provided with deep groove ball bearing between the support of bearing and the shaft; The top pressure closure soffit is provided with the taper roll bearing that cooperates with shaft.
5. coal mine gas multi-parameters test hole sealing device as claimed in claim 5 is characterized in that: said power blade and stirring vane are for being provided with up and down, and the support of bearing is between power blade and stirring vane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100626702A CN102678164A (en) | 2011-03-09 | 2011-03-09 | Hole sealing device for multi-parameter testing of coal mine underground gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100626702A CN102678164A (en) | 2011-03-09 | 2011-03-09 | Hole sealing device for multi-parameter testing of coal mine underground gas |
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| Publication Number | Publication Date |
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| CN102678164A true CN102678164A (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100626702A Pending CN102678164A (en) | 2011-03-09 | 2011-03-09 | Hole sealing device for multi-parameter testing of coal mine underground gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049914A (en) * | 2018-02-06 | 2018-05-18 | 河南理工大学 | A kind of mining tailrace for preventing cinder from depositing |
| CN108757011A (en) * | 2018-07-13 | 2018-11-06 | 中国矿业大学(北京) | A kind of gas drilling plugging equipment and method based on the conjunction of positive-negative press seal bridging |
| CN114059972A (en) * | 2021-11-24 | 2022-02-18 | 河南工程学院 | Be used for coal bed gas negative pressure to take out and adopt analogue means |
-
2011
- 2011-03-09 CN CN2011100626702A patent/CN102678164A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049914A (en) * | 2018-02-06 | 2018-05-18 | 河南理工大学 | A kind of mining tailrace for preventing cinder from depositing |
| CN108049914B (en) * | 2018-02-06 | 2023-09-22 | 河南理工大学 | Mining drainer for preventing cinder deposition |
| CN108757011A (en) * | 2018-07-13 | 2018-11-06 | 中国矿业大学(北京) | A kind of gas drilling plugging equipment and method based on the conjunction of positive-negative press seal bridging |
| CN114059972A (en) * | 2021-11-24 | 2022-02-18 | 河南工程学院 | Be used for coal bed gas negative pressure to take out and adopt analogue means |
| CN114059972B (en) * | 2021-11-24 | 2023-05-16 | 河南工程学院 | Be used for coal bed gas negative pressure to take out and adopt analogue means |
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Application publication date: 20120919 |