CN102913183B - Multifunctional pneumatic power hole sealing device and the hole-sealing technology supporting with it - Google Patents
Multifunctional pneumatic power hole sealing device and the hole-sealing technology supporting with it Download PDFInfo
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- CN102913183B CN102913183B CN201210415492.1A CN201210415492A CN102913183B CN 102913183 B CN102913183 B CN 102913183B CN 201210415492 A CN201210415492 A CN 201210415492A CN 102913183 B CN102913183 B CN 102913183B
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- 238000007789 sealing Methods 0.000 title claims abstract description 161
- 238000005516 engineering process Methods 0.000 title claims abstract description 17
- 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 28
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000007599 discharging Methods 0.000 claims abstract description 24
- 238000009423 ventilation Methods 0.000 claims abstract description 20
- 238000000605 extraction Methods 0.000 claims abstract description 13
- 230000008676 import Effects 0.000 claims abstract description 11
- 210000003097 mucus Anatomy 0.000 claims description 44
- 238000005553 drilling Methods 0.000 claims description 35
- 239000007788 liquid Substances 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 19
- 239000003245 coal Substances 0.000 claims description 15
- 238000005086 pumping Methods 0.000 claims description 14
- 239000006260 foam Substances 0.000 claims description 11
- 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
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 38
- 229920001971 elastomer Polymers 0.000 description 12
- 239000011148 porous material Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 239000000945 filler Substances 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
- 239000011083 cement mortar Substances 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000002265 prevention 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
- 230000000694 effects Effects 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
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection 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
- 230000002028 premature Effects 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
- 239000003643 water by type Substances 0.000 description 1
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- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses 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, 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 also accessing mixing tube, and tube connector is provided with volume damper.The present invention is that one sealing load boring can seal again extraction boring, and sealing quality is stablized, sealed borehole length and the degree of depth can control, materials are economized, the low Multifunctional pneumatic power polyurethane hole sealing device of labour intensity and the hole-sealing technology supporting with it.
Description
Technical field
The present invention relates to the hole sealing device for underground pressure measurement for coal mine boring, extraction boring and coal-bed flooding and hole-sealing technology, 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 eliminating gas accident hidden danger, play an important role in the work of mine gas prevention and control, and in these two techniques, have the application of hole sealing technology, sealing of hole becomes the critical process of these two techniques, it is whether accurate that the quality of sealing quality is directly connected to gas pressure measurement, the height of gas drainage under suction efficiency.
At present, the encapsulating method of pressure port mainly contains cushion rubber hole packer method of pore sealing, cement mortar method of pore sealing, glued circle 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, and cement solidification forms crack after shrinking cannot effectively shutoff, and sealing of hole effect is bad.Glued circle pressure mucus sealing of hole manometric method, although can solve boring natural fissure around and the problem of release crack gas leakage well, 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, sealing of hole pipe fitting is by locking, and equipment cannot reclaim.
What extraction hole encapsulating method mainly adopted is circumvolution method, (towel is namely used to be wound around hole sealing tube, limit wrapped edge waters polyurethane mixed liquor on cloth, be wound around and terminate namely to pour into a mould end, then related for hole sealing tube towel is inserted extraction borehole together with polyurethane mixed liquor, treat that polyurethane dilatancy hardening terminates and sealing of hole terminates.) the operation competency profiling of this pure manual method for sealing to workman be very high, workman is needed at short notice hole sealing tube to be delivered to precalculated position, otherwise polyurethane premature cure then sealing of hole lost efficacy, and destroy the integrality of rigid foam due to the existence of towel, the permeability of sealing of hole section is increased, affects gas drainage results.
Summary of the invention
The object of the invention is the deficiency for existing in current hole sealing technology, there is provided one sealing load boring can seal again extraction boring, and sealing quality is stablized, sealed borehole length and the degree of depth can control, materials are economized, the low Multifunctional pneumatic power polyurethane hole sealing device of labour intensity 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 also accessing mixing tube, and tube connector is provided with volume damper.
The outlet of mixing tube connects the sealing of hole conduit for sending boring to, and the port of sealing of hole conduit is provided with shower nozzle.
Also comprise mixing and connect block, mixing connects block and is provided with three inlet connector and a discharging joint, three inlet connector all with discharging fittings, three inlet connector connect two discharging openings of two pneumatic linear actuators respectively, the import of discharging joint connection mixing tube.
Two air intakes of two pneumatic linear actuators are communicated with by U-tube, pressure ventilation pipe is communicated with a tube connector, and the end connection described first of tube connector is in charge of and is in charge of with second, and second is in charge of the described U-tube of connection, second is in charge of and is provided with reducing valve, and the junction that U-tube is in charge of with second is provided with pressure meter.
Described pneumatic cylinder is provided with content gauge.
Pressure measuring drill hole hole-sealing technology, above-mentioned mash gas pumping drilling hole sealing device is first set, the black material of polyurethane feed liquid and white material is respectively charged in two pneumatic linear actuators of mash gas pumping drilling hole sealing device, after hole sealing tube inserts coal bed drilling, air line under pressure ventilation pipe connected well, mash gas pumping drilling hole sealing device interval between hole sealing tube and coal bed drilling is utilized to inject two sections of polyurethane feed liquids, after two sections of polyurethane feed liquid dilatancy hardenings become block, boring in hole sealing tube outer ring two sections of hardening polyurethane blocks between inject mucus.
During boring pressure measurement, mucus pressure is greater than gas pressure in boring.
Described mucus is that mucus tank injects between two sections of hardening polyurethane blocks by mucus carrier pipe, and mucus tank is hermetically sealed can, and mucus tank is communicated with gas tank, and gas tank is built-in for making the liquid carbon dioxide of mucus supercharging.
Described hole sealing tube is before insertion boring, the outer ring of hole sealing tube is arranged at intervals with four separators, three regions are formed successively between four separators, the sealing of hole conduit be connected with mixing tube has two, two sealing of hole conduits stretch in two side areas respectively, now mucus carrier pipe is stretched in zone line, after hole sealing tube inserts coal bed drilling, two side areas injects polyurethane feed liquid simultaneously, after two sections of polyurethane feed liquid dilatancy hardenings, inject mucus, finally fill in stopper with the hole sealing tube of fixed orifice at drilling orifice place, prevent hole sealing tube from rocking.
Extraction drilling and sealing technique, above-mentioned mash gas pumping drilling hole sealing device is first set, the black material of polyurethane feed liquid and white material is respectively charged 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 pressure ventilation pipe connected well, by sealing of hole conduit between two closeouts, polyurethane feed liquid is injected between sealing of hole conduit and boring, become after block to form foam sealing hole section until polyurethane dilatancy hardening, foam sealing hole section is positioned at the extending stress band of coal bed drilling, 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 underground pressure air be power source without the need to other power, be pure mechanical hole sealing device, therefore, apparatus of the present invention are essential safe type device.
2, the present invention can change the length of hole sealing depth and sealing of hole section by the position that changes shower nozzle and the position being fixed on rubber cushion or closeouts on hole sealing tube.
3, apparatus of the present invention are provided with volume damper, after sealing of hole, open volume damper can by polyurethane remaining in mixing tube and sealing of hole conduit blowout, prevent blocking pipeline after polyurethane expansion curing, press wind can also form a gas shutoff wall after opening volume damper in addition and stop polyurethane axial expansion in boring, force its expanded radially and then make shutoff tighter.
4, apparatus of the present invention arrange two polyurethane output flow control valve, proportioning can go out the polyurethane mixed liquor of different proportion, to adapt to the characteristic of dissimilar polyurethane different ratio by regulating these two valves.
5, apparatus of the present invention are provided with precision pressure gauge and reducing valve, blast can be made to be adjusted to convenient pressure by regulating reducing valve, thus solve the excessive polyurethane that causes of pressure wind pressure and mix uneven and waste, blast is too small makes again polyurethane send problem less than appointed place.
6, apparatus of the present invention are provided with the liquid level that two pointer floating ball lever meters can indicate two containers respectively, and then can determine the consumption of polyurethane.
7, apparatus of the present invention are provided with the seedpod of the lotus shower nozzle mixing material of ejection can be made to become thread to diffuse state, polyurethane can be made to be adjacent to hole wall, can reduce again the consumption of polyurethane.
8, apparatus of the present invention structure is simple, and easy to install, 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; In fire damp prevention and control field, there is very large promotional value.
Accompanying drawing explanation
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.
Detailed description of the invention
Embodiment 1:
A kind of Multifunctional pneumatic power hole sealing device as shown in Figure 1, comprises and connects block 45 and mixing tube 31 with the pneumatic linear actuator 36 of charging aperture and discharging opening 35, pressure ventilation pipe 38, mixing.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 place of pneumatic linear actuator 36 is provided with flow control valve 33, the top of pneumatic linear actuator 36 is also 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-tube, the two-port of U-tube connects two air intakes respectively, the middle part of U-tube connects described second again and is in charge of 40, junction U-tube being in charge of 40 with second 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 is just all connected with pressure ventilation pipe 38.
The side that described mixing connects block 45 is provided with three inlet connector 44, opposite side is provided with a discharging joint 46, three inlet connector 44 are all communicated with discharging joint 46, and three inlet connector 44 are in charge of the port of 43 respectively by two discharging openings 35 and first that three pipes 32 connect two pneumatic linear actuators 36, 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 35 of two pneumatic linear actuators 36 just all connects the import of mixing tube 31, and the import of 43 connection mixing tubes 31 is also in charge of by pressure ventilation pipe 38 by first.The outlet of mixing tube 31 connects the sealing of hole conduit 47 for sending boring to, 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 filter screen for filtering the impurity in polyurethane in charging aperture, in order to avoid blocking pneumatic linear actuator 36 and pipeline; The tightness that O type circle ensures pneumatic linear actuator 36 is lined with in seal cover 49.The reading of pointer-type floating ball lever meter 41 hand of dial indication represents the height of liquid level in pneumatic linear actuator 36, and the height declined by liquid level can calculate the consumption of polyurethane, thus takes corresponding operation accurately can control the consumption of polyurethane.
Multifunctional pneumatic power hole sealing device of the present invention, in two sub-cylinders, the black material of polyurethane and white material is injected respectively by two charging apertures, and pressure ventilation pipe 38 is connected with underground pressure air pipeline, take underground pressure air as power source, by underground pressure air by the black material in two sub-cylinders and expect in vain extrude, by the size regulating two flow control valves 33 on two discharging openings 35 can control the output flow of the black material of polyurethane and white material, to mix the black and white material mixed liquor of the optimum proportioning being suitable for sealing of hole.Black material name is called isocyanates, and white material name is called combined polyether.
After the reducing valve 39 be in charge of on 40 in cut out second stops material feeding, open the first volume damper 34 be in charge of on 43 and can blow out liquid residual in mixing tube 31 and pipeline, so as not to polyurethane expand after blocking pipeline.The hole-sealing technology utilizing 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 the pressure measuring drill hole hole-sealing technology shown in Fig. 1 and Fig. 2, mash gas pumping drilling hole sealing device as described in Example 1 is first set, in two pneumatic linear actuators 36 of mash gas pumping drilling hole sealing device, is respectively charged into the black material of a certain amount of polyurethane feed liquid of allocating in proportion in advance and white material.
Described hole sealing tube 54 is before insertion 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 fixed gear dishes 57 that interval, hole sealing tube 54 outer ring sets firmly, (certainly, if do not have rubber cushion 52, separator can substitute with towel, also can be wrapped on hole sealing tube 54), form three regions between four rubber cushions 52 successively: two side areas and zone line.Export with mixing tube 31 the sealing of hole conduit 47 be connected the while of described and have two, two sealing of hole conduits 47 are inserted through corresponding rubber cushion 52 and extend into respectively in two side areas also to be tied up on hole sealing tube 54 respectively, again a mucus carrier pipe 50 being also inserted through corresponding rubber cushion 52 and extending in zone line is also fixed on hole sealing tube 54, 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, gas tank is built-in for making the liquid carbon dioxide of mucus supercharging, CO
2being inert gas common in air, and being the gas that in conventional gas, critical-temperature is the highest, is that is hold liquescent gas most.Therefore, under identical volume, the amount of the gas that can store is maximum, thus for ensureing mucus pressure stability, can provide the most lasting power.Pipe is provided with switch valve 61.
Hole sealing tube 54 inserts in coal bed drilling 58 after the reservation degree of depth together with sealing of hole conduit 47 and mucus carrier pipe 50, and the inner end of hole sealing tube 54 is stretched out outside the most inboard rubber cushion 52 inwards, and the innermost end tube wall of hole sealing tube 54 is provided with sieve aperture 59.By air line under pressure ventilation pipe 38 connected well, mash gas pumping drilling 58 hole sealing device interval between hole sealing tube 54 and coal bed drilling 58 is utilized to inject two sections of polyurethane feed liquids, and be that the two side areas that four rubber cushions 52 are formed injects polyurethane feed liquid simultaneously: two flow control valves 33 first opening pneumatic linear actuator 36 liang of discharging openings 35, open pressure wind reducing valve 39 and be modulated to predetermined pressure, observe the height of the instruction of two pointer float level meter 41 hand of dial, then when liquid level drops to predetermined altitude, close pressure wind reducing valve 39 and two flow control valves 33 immediately, open volume damper 34 immediately, by the polyurethane blowout remained in pipeline, two hole sealing tubes 54 of note polyurethane are extracted out fast more simultaneously, to reuse.
After two sections of polyurethane feed liquid dilatancy hardenings become block, in boring 58 hole sealing tube 54 outer ring two sections of hardening polyurethane blocks 51 between inject mucus 53, mucus 53 is that above-mentioned mucus tank 63 injects between two sections of hardening polyurethane blocks 51 by mucus carrier pipe 50, hole 58 pressure measurement time, hole sealing tube 54 installing gas pressure meter 56 detects boring 58 gas pressure, mucus 53 pressure is all the time slightly larger than gas pressure in boring 58, and switch valve 61 is in opening always, until pressure measurement process terminates rear closedown.Mucus is mixed by aggregate, filler and mucus.The formula of sealing mucus (plugging gap is for being not more than 4mm) is: chemical pulp aleuron (starch+anticorrisive agent) makes mucus with ratio (mass ratio) 1:16 of water, the ratio (volume ratio) of aggregate and mucus is 1:8, and the ratio (volume ratio) of filler and mucus is 1:16.Wherein aggregate by granularity be 0.5mm ~ 1.0mm, 1.0mm ~ 2.5mm, 2.5mm ~ 5.0mm slag in proportion 1:2:3 mix; Filler by 0.25mm ~ 0.5mm, 0.5mm ~ 1.0mm, 1.0mm ~ 2.5mm sawdust by volume 1:1:1 Homogeneous phase mixing form.
Finally fill in stopper 55 with the hole sealing tube 54 of fixed orifice at boring 58 aperture place, stopper 55 is stopper or industrial cotton yarn, and main purpose is the hole sealing tube 54 of fixed orifice, prevents 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, high pressure mucus 53 pairs of coal-bed gas carry out shutoff), during this method for sealing key is pressure measurement, the pressure of mucus 53 will all the time slightly larger than gas pressure, make it to permeate in crack around boring 58 wall, thus avoid gas to external leakage.
Embodiment 3:
By the extraction drilling and sealing technique shown in Fig. 1 and Fig. 3, mash gas pumping drilling hole sealing device as described in Example 1 is first set, the black material of a certain amount of polyurethane feed liquid of allocating in proportion in advance and white material is respectively charged into, pressure ventilation pipe 38 connecting downhole air line in two pneumatic linear actuators 36 of mash gas pumping drilling hole sealing device.
Interval on drainage tube 66 is arranged two closeouts 70, and closeouts 70 is the towel being wrapped in drainage tube 66 outer ring respectively, is extend between two closeouts 70 by the sealing of hole conduit 47 of mash gas pumping drilling hole sealing device, and is tied up on drainage tube 66 by sealing of hole conduit 47.
Again drainage tube 66 is inserted the degree of depth predetermined in coal bed drilling 58, by air line under pressure ventilation pipe 38 connected well, polyurethane feed liquid is injected between two closeouts 70, between sealing of hole conduit 47 and boring 58 by sealing of hole conduit 47, foam sealing hole section 69 is formed after polyurethane expansion feed liquid hardens into block, foam sealing hole section 69 is positioned at the extending stress band of coal bed drilling 58, the scope helping approximately 5m ~ 8m inwards perpendicular to lane is extending stress band, foam sealing hole section 69 length is between 100cm-110cm, to ensure that permeability is lower.
After the abundant dilatancy hardening of the polyurethane in foam sealing hole section 69, fix drainage tube 66 at aperture stopper 71 or industrial cotton yarn, finally drainage tube 66 interface is connected on extraction pipeline and carries out extraction.
Claims (7)
1. a 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, 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 also accessing mixing tube, tube connector is provided with volume damper, also comprise mixing and connect block, mixing connects block and is provided with three inlet connector and a discharging joint, three inlet connector all with discharging fittings, three inlet connector connect two discharging openings of two pneumatic linear actuators respectively, discharging joint connects the import of mixing tube, two air intakes of two pneumatic linear actuators are communicated with by U-tube, pressure ventilation pipe is communicated with a tube connector, the end connection described first of tube connector is in charge of and is in charge of with second, second is in charge of the described U-tube of connection, second is in charge of and is provided with reducing valve, the junction that U-tube is in charge of with second is provided with pressure meter, described pneumatic linear actuator is provided with content gauge, the discharge outlet of pneumatic linear actuator is provided with flow control valve.
2. Multifunctional pneumatic power hole sealing device as claimed in claim 1, is characterized in that: the outlet of mixing tube connects the sealing of hole conduit for sending boring to, and the port of sealing of hole conduit is provided with shower nozzle.
3. pressure measuring drill hole hole-sealing technology, it is characterized in that: Multifunctional pneumatic power hole sealing device according to claim 1 is first set, the black material of polyurethane feed liquid and white material is respectively charged in two pneumatic linear actuators of Multifunctional pneumatic power hole sealing device, after hole sealing tube inserts coal bed drilling, air line under pressure ventilation pipe connected well, mash gas pumping drilling hole sealing device interval between hole sealing tube and coal bed drilling is utilized to inject two sections of polyurethane feed liquids, after two sections of polyurethane feed liquid dilatancy hardenings become block, boring in hole sealing tube outer ring two sections of hardening polyurethane blocks between inject mucus.
4. pressure measuring drill hole hole-sealing technology as claimed in claim 3, is characterized in that: during boring pressure measurement, mucus pressure is greater than gas pressure in boring.
5. pressure measuring drill hole hole-sealing technology as claimed in claim 4, it is characterized in that: described mucus is that mucus tank injects between two sections of hardening polyurethane blocks by mucus carrier pipe, mucus tank is hermetically sealed can, and mucus tank is communicated with gas tank, and gas tank is built-in for making the liquid carbon dioxide of mucus supercharging.
6. pressure measuring drill hole hole-sealing technology as claimed in claim 5, it is characterized in that: described hole sealing tube is before insertion boring, the outer ring of hole sealing tube is arranged at intervals with four separators, three regions are formed successively between four separators, the sealing of hole conduit be connected with mixing tube has two, two sealing of hole conduits stretch in two side areas respectively, now mucus carrier pipe is stretched in zone line, after hole sealing tube inserts coal bed drilling, two side areas injects polyurethane feed liquid simultaneously, after two sections of polyurethane feed liquid dilatancy hardenings, inject mucus, finally fill in stopper with the hole sealing tube of fixed orifice at drilling orifice place, prevent hole sealing tube from rocking.
7. extraction drilling and sealing technique, it is characterized in that: Multifunctional pneumatic power hole sealing device according to claim 1 is first set, the black material of polyurethane feed liquid and white material is respectively charged in two pneumatic linear actuators of Multifunctional pneumatic power 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 pressure ventilation pipe connected well, by sealing of hole conduit between two closeouts, polyurethane feed liquid is injected between sealing of hole conduit and boring, become after block to form foam sealing hole section until polyurethane dilatancy hardening, foam sealing hole section is positioned at the extending stress band of coal bed drilling, foam sealing hole segment length is between 100cm-110cm.
Priority Applications (1)
| 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 CN102913183A (en) | 2013-02-06 |
| CN102913183B true CN102913183B (en) | 2015-11-04 |
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| CN107255022B (en) * | 2017-07-10 | 2023-03-24 | 南充西南石油大学设计研究院有限责任公司 | Double-channel mixed spray head, double-layer continuous pipe leakage stopping device and well drilling leakage stopping process |
| 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 |
| 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 |
| 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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| CN201241725Y (en) * | 2008-06-17 | 2009-05-20 | 淮南矿业(集团)有限责任公司 | Mining polyurethane hole packer |
| CN201320508Y (en) * | 2008-10-25 | 2009-10-07 | 华晋焦煤有限责任公司 | Pneumatic injection device made of hole sealing materials |
| CN201671588U (en) * | 2010-04-30 | 2010-12-15 | 华北科技学院 | Pressure measuring hole sealing apparatus for downward long hole |
| CN201826807U (en) * | 2010-10-29 | 2011-05-11 | 北京中矿天安科技发展有限公司 | Gas drainage hole sealing device |
| CN102009448A (en) * | 2010-12-10 | 2011-04-13 | 煤炭科学研究总院重庆研究院 | Reactive foam injection system |
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| CN102287218A (en) * | 2011-08-16 | 2011-12-21 | 贵州永聚恒丰科技发展有限公司 | Gas drainage hole-sealing device |
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