CN102913183A - Multifunctional pneumatic sealing device and matched sealing process thereof - Google Patents
Multifunctional pneumatic sealing device and matched sealing process thereof Download PDFInfo
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- CN102913183A CN102913183A CN2012104154921A CN201210415492A CN102913183A CN 102913183 A CN102913183 A CN 102913183A CN 2012104154921 A CN2012104154921 A CN 2012104154921A CN 201210415492 A CN201210415492 A CN 201210415492A CN 102913183 A CN102913183 A CN 102913183A
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- 238000007789 sealing Methods 0.000 title claims abstract description 169
- 238000000034 method Methods 0.000 title claims abstract description 22
- 229920002635 polyurethane Polymers 0.000 claims abstract description 56
- 239000004814 polyurethane Substances 0.000 claims abstract description 56
- 238000002156 mixing Methods 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 26
- 238000009423 ventilation Methods 0.000 claims abstract description 20
- 210000003097 mucus Anatomy 0.000 claims description 44
- 238000005553 drilling Methods 0.000 claims description 43
- 239000007788 liquid Substances 0.000 claims description 31
- 238000007599 discharging Methods 0.000 claims description 22
- 238000005086 pumping Methods 0.000 claims description 22
- 239000003245 coal Substances 0.000 claims description 15
- 238000005516 engineering process Methods 0.000 claims description 15
- 238000000605 extraction Methods 0.000 claims description 13
- 239000006260 foam Substances 0.000 claims description 11
- 230000008676 import Effects 0.000 claims description 9
- 238000009530 blood pressure measurement Methods 0.000 claims description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 37
- 229920001971 elastomer Polymers 0.000 description 14
- 239000011148 porous material Substances 0.000 description 5
- 239000000945 filler Substances 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001677738 Aleuron Species 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
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Abstract
The invention discloses a multifunctional pneumatic sealing device, which comprises pneumatic cylinders with feeding holes and discharge holes, wherein air inlets are arranged at the top parts of the pneumatic cylinders; sealing covers are arranged at the feeding holes of the pneumatic cylinders; two pneumatic cylinders are arranged; the air inlets of the two pneumatic cylinders are connected with a pressure ventilation pipe; the discharge holes of the two pneumatic cylinders are connected with an inlet of a mixing pipe; the pressure ventilation pipe is also accessed into the inlet of the mixing pipe through a first branch pipe; and a volume damper is arranged on a connection pipe. The multifunctional pneumatic sealing device and the matched sealing process are multifunctional pneumatic polyurethane sealing device and matched sealing process capable of sealing a pressure borehole and sealing a drainage borehole, and being stable in sealing quality, controllable in sealing length and depth, saving materials, and being low in labor intensity.
Description
Technical field
The present invention relates to hole sealing device and hole-sealing technology for underground pressure measurement for coal mine boring, extraction boring and coal-bed flooding, be mainly used in the sealing of testing pressure down hole hole, extraction boring and water injection hole.
Background technology
Gas pressure measurement and gas drainage under suction are respectively as one of mine gas basic parameter and the important measures of eliminating gas accident hidden danger, play an important role in the work of mine gas prevention and control, and the application of hole sealing technology is arranged in these two techniques, sealing of hole becomes the critical process of these two techniques, accurately whether the quality of sealing quality is directly connected to gas pressure measurement, the height of gas drainage under suction efficient.
At present, the encapsulating method of pressure port mainly contains cushion rubber hole packer method of pore sealing, cement mortar method of pore sealing, cushion rubber pressure mucus method of pore sealing etc.Cushion rubber hole packer method of pore sealing sealing cost is higher, and hole sealing depth is little, is only applicable to the sealing of rock densification, complete boring.Cement mortar method of pore sealing waste of material is serious, labour intensity is large, forms effectively shutoff of crack after cement solidification is shunk, and the sealing of hole effect is bad.Cushion rubber pressure mucus sealing of hole manometric method, although can solve well boring natural crack on every side and the problem of release crack gas leakage, and the degree of accuracy is high, but its equipment cost is high, operational sequence is more complicated, and when running into soft seam and collapse hole, the sealing of hole pipe fitting is by locking, and equipment can't reclaim.
What extraction hole encapsulating method mainly adopted is the circumvolution method, (namely use towel to be wound around hole sealing tube, the limit wrapped edge is watered the polyurethane mixed liquor on cloth, be wound around and finish i.e. cast end, then the related towel of hole sealing tube and polyurethane mixed liquor are inserted extraction borehole together, treat that the polyurethane dilatancy hardening finishes and sealing of hole finishes.) this pure manual method for sealing is very high to workman's operation competency profiling, need the workman at short notice hole sealing tube to be delivered to the precalculated position, sealing of hole lost efficacy otherwise polyurethane solidifies in advance, and destroyed the integrality of rigid foam due to the existence of towel, make the permeability of sealing of hole section increase, affect the extraction effect.
Summary of the invention
The objective of the invention is the deficiency that exists in present hole sealing technology, provide a kind of can sealing load boring can seal again extraction boring, and sealing quality is stable, sealed borehole length and the degree of depth can be controlled, materials are economized, labour intensity is low Multifunctional pneumatic power polyurethane hole sealing device and the hole-sealing technology supporting with it.
For achieving the above object, the present invention adopts following technical scheme: a kind of Multifunctional pneumatic power hole sealing device, comprise the pneumatic linear actuator with charging aperture and discharging opening, the top of pneumatic linear actuator is provided with air intake, and the charging aperture place of pneumatic linear actuator is provided with seal cover, and described pneumatic linear actuator is provided with two, the air intake of two pneumatic linear actuators all connects pressure ventilation pipe, the discharging opening of two pneumatic linear actuators all connects the import of a mixing tube, and pressure ventilation pipe is in charge of by first the import that also accesses mixing tube, and tube connector is provided with volume damper.
The outlet of mixing tube connects the sealing of hole conduit that is used for sending to boring, and the port of sealing of hole conduit is provided with shower nozzle.
Also comprise mixing connecing piece, mixing connects piece and is provided with three charging joints and a discharging joint, and three charging joints all are communicated with the discharging joint, and three charging joints connect respectively two discharging openings of two pneumatic linear actuators, and the discharging joint connects the import of mixing tube.
Two air intakes of two pneumatic linear actuators are communicated with by U-shaped pipe, pressure ventilation pipe is communicated with a tube connector, and the end connection described first of tube connector is in charge of with second and is in charge of, and second is in charge of the described U-shaped pipe of connection, second is in charge of and is provided with reducing valve, and the junction that U-shaped Guan Shangyu second is in charge of is provided with pressure meter.
Described pneumatic cylinder is provided with content gauge.
The pressure measuring drill hole hole-sealing technology, above-mentioned mash gas pumping drilling hole sealing device first is set, be respectively charged into black material and the white material of polyurethane feed liquid in two pneumatic linear actuators of mash gas pumping drilling hole sealing device, after hole sealing tube inserts coal bed drilling, air line under the pressure ventilation pipe connected well, utilize mash gas pumping drilling hole sealing device two sections polyurethane feed liquids of interval injection between hole sealing tube and coal bed drilling, after two sections polyurethane feed liquid dilatancy hardenings become piece, inject mucus between two sections hardening polyurethane pieces of hole sealing tube outer ring in boring.
During the boring pressure measurement, mucus pressure is greater than gas pressure in boring.
Described mucus is that the mucus tank injects between two sections hardening polyurethane pieces by the mucus carrier pipe, and the mucus tank is hermetically sealed can, and the mucus tank is communicated with gas tank, the built-in liquid carbon dioxide be used to making the mucus supercharging of gas tank.
Described hole sealing tube is before inserting boring, the outer ring of hole sealing tube is arranged at intervals with four separators, form successively Three regions between four separators, the sealing of hole conduit that is connected with mixing tube has two, two sealing of hole conduits stretch into respectively in two side areas, stretch into the mucus carrier pipe in zone line this moment, after hole sealing tube inserts coal bed drilling, two side areas is injected the polyurethane feed liquid simultaneously, after two sections polyurethane feed liquid dilatancy hardenings, inject mucus, fill in stopper with the hole sealing tube of fixed orifice at the drilling orifice place at last, prevent that hole sealing tube from rocking.
extraction drilling and sealing technique, above-mentioned mash gas pumping drilling hole sealing device first is set, be respectively charged into black material and the white material of polyurethane feed liquid in two pneumatic linear actuators of mash gas pumping drilling hole sealing device, interval on hole sealing tube is arranged two closeouts, the sealing of hole conduit of mash gas pumping drilling hole sealing device is stretched between two closeouts, again hole sealing tube is inserted in coal bed drilling, air line under the pressure ventilation pipe connected well, by the sealing of hole conduit between two closeouts, inject the polyurethane feed liquid between sealing of hole conduit and boring, after becoming piece, the polyurethane dilatancy hardening forms the foam sealing hole section, the foam sealing hole section is positioned at the extending stress band of coal bed drilling, the foam sealing hole segment length is between 100cm-110cm.
Multifunctional pneumatic power hole sealing device of the present invention and the hole-sealing technology supporting with it have following beneficial effect:
1, Multifunctional pneumatic power hole sealing device of the present invention can down-hole pressure wind be that power source need not other power, is pure mechanical hole sealing device, and therefore, apparatus of the present invention are the essential safe type device.
2, the position that the present invention can be by changing shower nozzle and be fixed on rubber cushion on hole sealing tube or the position of closeouts changes the length of hole sealing depth and sealing of hole section.
3, apparatus of the present invention are provided with volume damper, opening volume damper after sealing of hole is complete can blow out polyurethane remaining in mixing tube and sealing of hole conduit, prevent blocking pipeline after the polyurethane expansion curing, press wind can also form gas shutoff wall prevention polyurethane axial expansion in boring after opening in addition volume damper, force its expanded radially and then make shutoff tighter.
4, apparatus of the present invention arrange two polyurethane output flow control valve, can proportioning go out the polyurethane mixed liquor of different proportion by regulating these two valves, in order to adapt to the characteristic of the different proportionings of dissimilar polyurethane.
5, apparatus of the present invention are provided with precision pressure gauge and reducing valve, can make blast transfer to convenient pressure by regulating reducing valve, the pressure wind pressure is excessive causes polyurethane to mix inhomogeneous and waste thereby solved, and blast is too small makes again polyurethane send problem less than the appointed place.
6, apparatus of the present invention are provided with the liquid level that two pointer floating ball lever meters can be indicated respectively two containers, and then can determine the consumption of polyurethane.
7, apparatus of the present invention are provided with the mixing material that seedpod of the lotus shower nozzle can make ejection and become thread to diffuse state, can make polyurethane be adjacent to hole wall, can reduce again the consumption of polyurethane.
8, apparatus of the present invention are simple in structure, and are easy to install, and sealing quality is high, and labour intensity is little, can reuse, and can be used for the sealing of the borings such as pressure measuring drill hole, extraction boring and water injecting drilling, can be used for again the spraying of rib; Has very large promotional value in the fire damp prevention and control field.
Description of drawings
Fig. 1 is the structural representation of Multifunctional pneumatic power hole sealing device of the present invention;
Fig. 2 is the structural representation of the embodiment of the present invention 2;
Fig. 3 is the structural representation of the embodiment of the present invention 3.
The specific embodiment
Embodiment 1:
By a kind of Multifunctional pneumatic power hole sealing device shown in Figure 1, comprise that pneumatic linear actuator 36, pressure ventilation pipe 38, the mixing with charging aperture and discharging opening 35 connects piece 45 and mixing tube 31.The charging aperture of pneumatic linear actuator 36 and discharging opening 35 lay respectively at top, the bottom of pneumatic linear actuator 36, the charging aperture place of pneumatic linear actuator 36 is provided with seal cover 49, discharging opening 35 places of pneumatic linear actuator 36 are provided with flow control valve 33, the top of pneumatic linear actuator 36 also is provided with air intake, pneumatic linear actuator 36 is provided with pointer float level meter 41, pneumatic linear actuator 36 is airtight setting, and pneumatic linear actuator 36 is provided with two altogether.
Described pressure ventilation pipe 38 is communicated with a tube connector 37, and the end connection first of tube connector 37 is in charge of 43 and second and is in charge of 40.Two air intakes of two pneumatic linear actuators 36 are communicated with by U-shaped pipe, the two-port of U-shaped pipe connects respectively two air intakes, the middle part of U-shaped pipe connects described second again and is in charge of 40, U-shaped Guan Shangyu second is in charge of 40 junction and is provided with pressure meter 42, second is in charge of 40 is provided with reducing valve 39, like this, the air intake of two pneumatic linear actuators 36 just all is connected with pressure ventilation pipe 38.
The side that described mixing connects piece 45 is provided with three charging joints 44, opposite sides and is provided with a discharging joint 46, three charging joints 44 all are communicated with discharging joint 46, and three charging joints 44 are in charge of 43 port by two discharging openings 35 and first that three pipes 32 connect two pneumatic linear actuators 36 respectively, discharging joint 46 connects the import of described mixing tube 31, and first is in charge of 43 is provided with volume damper 34.Like this, the discharging opening of two pneumatic linear actuators 36 35 just all connects the import of mixing tube 31, and pressure ventilation pipe 38 also is in charge of 43 imports that connect mixing tubes 31 by first.The outlet of mixing tube 31 connects the sealing of hole conduit 47 that is used for sending to boring, and the port of sealing of hole conduit 47 is provided with shower nozzle 48, and sealing of hole conduit 47 is high-pressure rubber pipe.
Establish the impurity that filter screen is used for filtering polyurethane in charging aperture, in order to avoid stop up pneumatic linear actuator 36 and pipeline; Be lined with the tightness that O type circle guarantees pneumatic linear actuator 36 in seal cover 49.The reading of pointer-type floating ball lever meter 41 dial plate pointer indications represents the height of pneumatic linear actuator 36 interior liquid levels, and the height that descends by liquid level can calculate the consumption of polyurethane, thereby takes corresponding operation can accurately control the consumption of polyurethane.
Multifunctional pneumatic power hole sealing device of the present invention, inject respectively black material and the white material of polyurethane in two sub-cylinders by two charging apertures, and pressure ventilation pipe 38 is connected with the down-hole air line, press wind as power source take the down-hole, press wind that the black material in two sub-cylinders and white material are extruded by the down-hole, can control by two flow control valves 33 of regulating on two discharging openings 35 size that polyurethane is deceived the output flow of material and white material, in order to mix the black and white material mixed liquor of the best proportioning that is suitable for sealing of hole.Black material name is called isocyanates, and white material name is called combined polyether.
Close second be in charge of reducing valve 39 on 40 and stop material feeding after, open the first volume damper 34 of being in charge of on 43 and can blow out residual liquid in mixing tube 31 and pipeline, so as not to polyurethane expand after blocking pipeline.The hole-sealing technology that utilizes Multifunctional pneumatic power hole sealing device of the present invention to realize comprises pressure measuring drill hole hole-sealing technology and extraction drilling and sealing technique.
Embodiment 2:
By pressure measuring drill hole hole-sealing technology illustrated in figures 1 and 2, mash gas pumping drilling hole sealing device as described in Example 1 first is set, is respectively charged into a certain amount of black material of the polyurethane feed liquid of allotment and material in proportion in vain in advance in two pneumatic linear actuators 36 of mash gas pumping drilling hole sealing device.
Described hole sealing tube 54 is before inserting boring 58, the outer ring of hole sealing tube 54 is arranged at intervals with four separators, separator is rubber cushion 52, and four rubber cushions 52 are separately fixed on four fixing shelves dishes 57 that hole sealing tube 54 intervals, outer ring set firmly, (certainly, if there is no rubber cushion 52, separator can substitute with towel, also can be wrapped on hole sealing tube 54), form successively Three regions between four rubber cushions 52: two side areas and zone line.The described while has two with the sealing of hole conduit 47 that mixing tube 31 outlets are connected, two sealing of hole conduits 47 interted corresponding rubber cushion 52 and extend into respectively in two side areas and tie up respectively on hole sealing tube 54, again a mucus carrier pipe 50 was also interted corresponding rubber cushion 52 and extend into and also be fixed on hole sealing tube 54 in zone line, mucus carrier pipe 50 connects mucus tank 63, mucus tank 63 is hermetically sealed can, mucus tank 63 is communicated with gas tank 62 by pipe, the built-in liquid carbon dioxide be used to making the mucus supercharging of gas tank, CO
2Be inert gas common in air, and be the highest gas of critical-temperature in gas commonly used, that is to say it is to hold liquescent gas most.Therefore, under identical volume, the amount of the gas that can store is maximum, thereby can for guaranteeing the mucus pressure stability, provide the most lasting power.Pipe is provided with switch valve 61.
After hole sealing tube 54 inserted the interior reservation degree of depth of coal bed drilling 58 together with sealing of hole conduit 47 and mucus carrier pipe 50, stretched out outside the most inboard rubber cushion 52 inwards the inner end of hole sealing tube 54, and the innermost end tube wall of hole sealing tube 54 is provided with sieve aperture 59.with air line under pressure ventilation pipe 38 connected wells, utilize mash gas pumping drilling 58 hole sealing devices two sections polyurethane feed liquids of interval injection between hole sealing tube 54 and coal bed drilling 58, and be that the two side areas that four rubber cushions 52 form is injected the polyurethane feed liquid simultaneously: two flow control valves 33 first opening 36 liang of discharging openings 35 of pneumatic linear actuator, open and press wind reducing valve 39 to be modulated to predetermined pressure, observe the height of the indication of two pointer float level meter 41 dial plate pointers, then when liquid level drops to predetermined altitude, occlusion pressure wind reducing valve 39 and two flow control valves 33 immediately, open immediately volume damper 34, the polyurethane that remains in pipeline is blown out, to annotate simultaneously two hole sealing tubes 54 that polyurethane uses extracts out fast again, in order to reuse.
After two sections polyurethane feed liquid dilatancy hardenings become piece, inject mucus 53 between two sections hardening polyurethane pieces 51 of boring 58 interior hole sealing tube 54 outer rings, mucus 53 is that above-mentioned mucus tank 63 injects between two sections hardening polyurethane pieces 51 by mucus carrier pipe 50, when holing 58 pressure measurement, hole sealing tube 54 installing gas pressure meters 56 detect boring 58 gas pressures, mucus 53 pressure are slightly larger than boring 58 interior gas pressures all the time, and switch valve 61 is in opening always, until the pressure measurement process is closed after finishing.Mucus is mixed by aggregate, filler and mucus.The formula of sealing mucus (plugging gap is for being not more than 4mm) is: ratio (mass ratio) 1:16 of chemical pulp aleuron (starch+anticorrisive agent) and water makes mucus, the ratio of aggregate and mucus (volume ratio) is 1:8, and the ratio of filler and mucus (volume ratio) is 1:16.Wherein aggregate is 0.5mm ~ 1.0mm by granularity, 1.0mm ~ 2.5mm, and the slag of 2.5mm ~ 5.0mm 1:2:3 in proportion mixes; Filler is by 0.25mm ~ 0.5mm, 0.5mm ~ 1.0mm, and the sawdust of 1.0mm ~ 2.5mm 1:1:1 by volume evenly mixes.
Fill in stopper 55 with the hole sealing tube 54 of fixed orifice at 58 places, apertures that hole at last, stopper 55 is stopper or industrial cotton yarn, and main purpose is the hole sealing tube 54 of fixed orifice, prevents that hole sealing tube 54 from rocking in boring 58.
The sealing of hole principle of pressure measuring drill hole 58 is solid sealing liquid bodies, liquid envelope gas (namely utilizes the polyurethane block after expansion curing to carry out shutoff to high pressure mucus 53,53 pairs of coal-bed gas of high pressure mucus carry out shutoff), during this method for sealing key is pressure measurement, the pressure of mucus 53 will be slightly larger than gas pressure all the time, make it to permeate in the crack on every side to boring 58 walls, thereby avoid gas to external leakage.
Embodiment 3:
By Fig. 1 and extraction drilling and sealing technique shown in Figure 3, mash gas pumping drilling hole sealing device as described in Example 1 first is set, be respectively charged into a certain amount of black material of the polyurethane feed liquid of allotment and material in proportion in vain in advance in two pneumatic linear actuators 36 of mash gas pumping drilling hole sealing device, pressure ventilation pipe 38 connecting downhole air lines.
Interval on drainage tube 66 is arranged two closeouts 70, and closeouts 70 is for being wrapped in respectively the towel of drainage tube 66 outer rings, the sealing of hole conduit 47 of mash gas pumping drilling hole sealing device extend between two closeouts 70, and sealing of hole conduit 47 is tied up on drainage tube 66.
Again drainage tube 66 is inserted the interior predetermined degree of depth of coal bed drilling 58, with air line under pressure ventilation pipe 38 connected wells, by sealing of hole conduit 47 between two closeouts 70, sealing of hole conduit 47 and hole between 58 and to inject the polyurethane feed liquid, after hardening into piece, polyurethane expansion feed liquid forms foam sealing hole section 69, foam sealing hole section 69 is positioned at the extending stress band of coal bed drilling 58, helping inwards approximately perpendicular to the lane, the scope of 5m ~ 8m is extending stress band, foam sealing hole section 69 length are between 100cm-110cm, to guarantee that permeability is lower.
After the abundant dilatancy hardening of polyurethane in foam sealing hole section 69, use fixedly drainage tube 66 of stopper 71 or industrial cotton yarn in the aperture, drainage tube 66 interfaces are connected to carry out extraction on extraction pipeline at last.
Claims (10)
1. Multifunctional pneumatic power hole sealing device, it is characterized in that: comprise the pneumatic linear actuator with charging aperture and discharging opening, the top of pneumatic linear actuator is provided with air intake, the charging aperture place of pneumatic linear actuator is provided with seal cover, described pneumatic linear actuator is provided with two, and the air intake of two pneumatic linear actuators all connects pressure ventilation pipe, and the discharging opening of two pneumatic linear actuators all connects the import of a mixing tube, and pressure ventilation pipe is in charge of by first the import that also accesses mixing tube, and tube connector is provided with volume damper.
2. mash gas pumping drilling hole sealing device as claimed in claim 1 is characterized in that: the outlet of mixing tube connects the sealing of hole conduit that is used for sending to boring, and the port of sealing of hole conduit is provided with shower nozzle.
3. mash gas pumping drilling hole sealing device as claimed in claim 1 or 2, it is characterized in that: also comprise mixing connecing piece, mixing connects piece and is provided with three charging joints and a discharging joint, three charging joints all are communicated with the discharging joint, three charging joints connect respectively two discharging openings of two pneumatic linear actuators, and the discharging joint connects the import of mixing tube.
4. mash gas pumping drilling hole sealing device as claimed in claim 3, it is characterized in that: two air intakes of two pneumatic linear actuators are communicated with by U-shaped pipe, pressure ventilation pipe is communicated with a tube connector, the end connection described first of tube connector is in charge of with second and is in charge of, second is in charge of the described U-shaped pipe of connection, second is in charge of and is provided with reducing valve, and the junction that U-shaped Guan Shangyu second is in charge of is provided with pressure meter.
5. mash gas pumping drilling hole sealing device as claimed in claim 4, it is characterized in that: described pneumatic cylinder is provided with content gauge.
6. pressure measuring drill hole hole-sealing technology, it is characterized in that: power 1-power 5 described mash gas pumping drilling hole sealing devices first are set, be respectively charged into black material and the white material of polyurethane feed liquid in two pneumatic linear actuators of mash gas pumping drilling hole sealing device, after hole sealing tube inserts coal bed drilling, air line under the pressure ventilation pipe connected well, utilize mash gas pumping drilling hole sealing device two sections polyurethane feed liquids of interval injection between hole sealing tube and coal bed drilling, after two sections polyurethane feed liquid dilatancy hardenings become piece, inject mucus between two sections hardening polyurethane pieces of hole sealing tube outer ring in boring.
7. pressure measuring drill hole hole-sealing technology as claimed in claim 6 is characterized in that: during the boring pressure measurement, mucus pressure is greater than gas pressure in boring.
8. pressure measuring drill hole hole-sealing technology as claimed in claim 7, it is characterized in that: described mucus is that the mucus tank injects between two sections hardening polyurethane pieces by the mucus carrier pipe, the mucus tank is hermetically sealed can, and the mucus tank is communicated with gas tank, the built-in liquid carbon dioxide be used to making the mucus supercharging of gas tank.
9. pressure measuring drill hole hole-sealing technology as claimed in claim 8, it is characterized in that: described hole sealing tube is before inserting boring, the outer ring of hole sealing tube is arranged at intervals with four separators, form successively Three regions between four separators, the sealing of hole conduit that is connected with mixing tube has two, two sealing of hole conduits stretch into respectively in two side areas, stretch into the mucus carrier pipe in zone line this moment, after hole sealing tube inserts coal bed drilling, two side areas is injected the polyurethane feed liquid simultaneously, after two sections polyurethane feed liquid dilatancy hardenings, inject mucus, at last fill in stopper with the hole sealing tube of fixed orifice at the drilling orifice place, prevent that hole sealing tube from rocking.
10. extraction drilling and sealing technique, it is characterized in that: power 1-power 5 described mash gas pumping drilling hole sealing devices first are set, be respectively charged into black material and the white material of polyurethane feed liquid in two pneumatic linear actuators of mash gas pumping drilling hole sealing device, interval on hole sealing tube is arranged two closeouts, the sealing of hole conduit of mash gas pumping drilling hole sealing device is stretched between two closeouts, again hole sealing tube is inserted in coal bed drilling, air line under the pressure ventilation pipe connected well, by the sealing of hole conduit between two closeouts, inject the polyurethane feed liquid between sealing of hole conduit and boring, after becoming piece, the polyurethane dilatancy hardening forms the foam sealing hole section, the foam sealing hole section is positioned at the extending stress band of coal bed drilling, the foam sealing hole segment length is between 100cm-110cm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210415492.1A CN102913183B (en) | 2012-10-26 | 2012-10-26 | Multifunctional pneumatic power hole sealing device and the hole-sealing technology supporting with it |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210415492.1A CN102913183B (en) | 2012-10-26 | 2012-10-26 | Multifunctional pneumatic power hole sealing device and the hole-sealing technology supporting with it |
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| Publication Number | Publication Date |
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| CN102913183A true CN102913183A (en) | 2013-02-06 |
| CN102913183B CN102913183B (en) | 2015-11-04 |
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| CN201210415492.1A Expired - Fee Related CN102913183B (en) | 2012-10-26 | 2012-10-26 | Multifunctional pneumatic power hole sealing device and the hole-sealing technology supporting with it |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255022A (en) * | 2017-07-10 | 2017-10-17 | 南充西南石油大学设计研究院有限责任公司 | Binary channels hybrid nozzle, double layer continuous pipe plug leakage device and drilling leakage blockage technique |
| CN109667561A (en) * | 2019-01-28 | 2019-04-23 | 重庆广创工贸有限责任公司 | A kind of dissolvant type rapid hole sealing device and method for sealing |
| CN115853469A (en) * | 2022-12-29 | 2023-03-28 | 中国矿业大学(北京) | Fixed-point gas extraction device and method based on extraction holes in different depths |
| CN116378598A (en) * | 2023-04-10 | 2023-07-04 | 山东金鼎新能源材料有限公司 | Polyurethane long-distance quick fixed-point hole sealing device and method for underground coal mine drilling |
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| CN107255022A (en) * | 2017-07-10 | 2017-10-17 | 南充西南石油大学设计研究院有限责任公司 | Binary channels hybrid nozzle, double layer continuous pipe plug leakage device and drilling leakage blockage technique |
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| CN109667561A (en) * | 2019-01-28 | 2019-04-23 | 重庆广创工贸有限责任公司 | A kind of dissolvant type rapid hole sealing device and method for sealing |
| CN115853469A (en) * | 2022-12-29 | 2023-03-28 | 中国矿业大学(北京) | Fixed-point gas extraction device and method based on extraction holes in different depths |
| CN115853469B (en) * | 2022-12-29 | 2023-06-13 | 中国矿业大学(北京) | Fixed-point gas extraction device and method based on different depths of extraction holes |
| CN116378598A (en) * | 2023-04-10 | 2023-07-04 | 山东金鼎新能源材料有限公司 | Polyurethane long-distance quick fixed-point hole sealing device and method for underground coal mine drilling |
| CN116378598B (en) * | 2023-04-10 | 2023-11-03 | 山东金鼎新能源材料有限公司 | Polyurethane long-distance quick fixed-point hole sealing device and method for underground coal mine drilling |
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