CN104481577A - Drilling, cutting, discharging and diversion integrated coal seam physical and chemical combination permeability increase system and method - Google Patents
Drilling, cutting, discharging and diversion integrated coal seam physical and chemical combination permeability increase system and method Download PDFInfo
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- CN104481577A CN104481577A CN201410677249.6A CN201410677249A CN104481577A CN 104481577 A CN104481577 A CN 104481577A CN 201410677249 A CN201410677249 A CN 201410677249A CN 104481577 A CN104481577 A CN 104481577A
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- 239000003245 coal Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000005553 drilling Methods 0.000 title claims abstract description 22
- 230000035699 permeability Effects 0.000 title abstract description 10
- 238000005520 cutting process Methods 0.000 title abstract description 8
- 239000000126 substance Substances 0.000 title abstract description 8
- 238000007599 discharging Methods 0.000 title abstract 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000000605 extraction Methods 0.000 claims abstract description 16
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims description 34
- 239000003814 drug Substances 0.000 claims description 26
- 238000012546 transfer Methods 0.000 claims description 26
- 229940079593 drug Drugs 0.000 claims description 23
- 238000010410 dusting Methods 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 238000009826 distribution Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 15
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 14
- 239000012508 resin bead Substances 0.000 claims description 14
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 239000003818 cinder Substances 0.000 claims description 10
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical group O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 10
- 239000013043 chemical agent Substances 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 239000003595 mist Substances 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 239000004155 Chlorine dioxide Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 5
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 5
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 abstract 6
- 239000002893 slag Substances 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000001028 reflection method Methods 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000023753 dehiscence Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Nozzles (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention discloses a drilling, cutting, discharging and diversion integrated coal seam physical and chemical combination permeability increase system and method, and belongs to soft coal seam pressure relief permeability increase systems and methods. The system comprises a chemical supply jet flow generation device, a drilling, cutting and discharging integrated device and a water, coal and gas separation device. In the chemical supply jet flow generation device, high-pressure water and chemical reagents are fed into a jet flow mixer to be fully mixed through a high-pressure water pump and a chemical adding pump, so that chemical supply jet flow is formed. The drilling, cutting and discharging integrated device can achieve the integration of drilling, slitting and in-hole slag discharging, and the frequency of the phenomenon that holes are blocked in the slitting process is reduced. The water, coal and gas separation device can completely separate the water, coal slag and gas mixture ejected out in the slitting process, separated gas enters an extraction pipeline, and water enters a water tank after being filtered to be recycled. According to the system, ground stress and gas pressure are relieved through slitting, and physical permeability increase is achieved; under the combined action of physical and chemical permeability increase, the air permeability of a coal seam and the gas extraction effect are remarkably improved.
Description
Technical field
The present invention relates to a kind of anti-reflection system and method for weak seam release, particularly a kind of row's of cutting point integrated coal seam physical chemistry that bores combines anti-reflection system and method.
Technical background
China's coal-bed gas composes the feature of depositing and having micropore, low-permeability, high absorption, and coal seam permeability on average only has 1.1974 × 10
-18~ 1.1596 × 10
-14m
2.Gas permeability of coal seam is low is the one of the main reasons causing China's highly gassy mine coal bed gas extraction effect generally poor.The waterpower measure being representative with high-pressure spray coal seam hydraulic slotted liner technique realizes anti-reflection to the physics in coal seam by forming discharge space in coal body, achieves good effect.But along with the increase of coal mining depth, coal seam gas-bearing capacity increases, and pure water jets cannot meet the gas pumping requirement of high strength because cutting power is limited.In chemistry is anti-reflection, existing achievement in research shows, under finite concentration, chlorine dioxide can carry out oxide etch to coal body, increases coal body porosity and pore communication, thus improves coal body permeability.
In addition, easily there is spray orifice in slot process, coal body collapses and the phenomenon such as gas exceeding limit, causing in boring to embrace and boring and ejector blocking, causing slot operation to be forced to termination, make work site environment worsen simultaneously.
Summary of the invention
Technical problem: the object of the invention is the weak point overcome in prior art, a kind of row's of cutting point integrated coal seam physical chemistry that bores is provided to combine anti-reflection system and method, solve in slot process easily there is spray orifice, coal body collapses and the phenomenon such as gas exceeding limit, cause in boring to embrace and bore and ejector blocking, cause slot operation to be forced to stop, make the problem that work site environment worsens simultaneously.
Technical scheme: the object of the present invention is achieved like this: brill of the present invention cuts row's point integrated coal seam physical chemistry and combines anti-reflection system, by high-pressure hydraulic pump, dosing pump, dosing pump pressure regulator valve, high-pressure hydraulic pump control valve, strainer, dusting power drug jet mixer, high-pressure rubber pipe, main body outfall, voltage-controlled drill bit, hangers, rotational flow generator, drilling rod, see-through window, ash gate, rig, preposition nozzle, side nozzle, orifice sealing device, ball valve, extraction pipeline, transfer purifying box, hemispherical collection chamber, absorb cone, cross filter cone, filter plate, liftable supports, transfer purifying box outfall, water-gas is separated, non retern valve device is formed, transfer purifying box outfall is connected with the input port of high-pressure hydraulic pump with strainer by high-pressure rubber pipe with main body outfall, the delivery outlet of high-pressure hydraulic pump is connected by water under high pressure and pump control valve and the medicine jet mixer mixed port, and the another port of dusting power drug jet mixer is connected with dosing delivery side of pump with dosing pump pressure regulator valve by the non retern valve device of series connection, the output port of dusting power drug jet mixer is connected with the water pigtail of rig, and the drilling rod front end of rig, through hangers, is connected with voltage-controlled drill bit at the end that has of drilling rod, voltage-controlled drill bit has preposition nozzle, side nozzle and orifice sealing device, be connected with rotational flow generator in the lower end of hangers, be connected with water-gas separation in the lower end of rotational flow generator, be connected with liftable support in the bottom that water-gas is separated, in water-gas is separated, order has absorption cone, crosses filter cone and filter plate, be separated on sidewall at water-gas and be connected with see-through window and ash gate, outfall is arranged at the bottom of filter plate, and the outer wall on water-gas separation top has hemispherical collection chamber, transfer purifying box is connected with hemispherical collection chamber by pipeline, and pass into water-gas be separated in bore and be connected with absorbing, transfer purifying box outfall is arranged at the bottom of transfer purifying box, extraction pipeline is passed in transfer purifying box by ball valve and pipeline.
Described dusting power drug jet mixer comprises eddy flow guidance tape, the first mixing chamber, flow distribution plate, mist pipe, fixed axis, flight and the second mixing chamber; Mist pipe is connected to two ends of the first mixing chamber, the second mixing chamber is connected with in the middle part of the first mixing chamber, in the second mixing chamber, there are two ends of flight in the first mixing chamber to have eddy flow guidance tape, be connected on fixed axis at eddy flow guidance tape, in the first mixing chamber, also have flow distribution plate, flow distribution plate is adjacent with eddy flow guidance tape.
Described preposition nozzle comprises nozzle body, slagging channel, spring, resin beads and cooling passage; Passage is V-shaped diverges to for slagging channel and cooling, and is positioned at one end of nozzle body, and be all linked in sequence spring and resin beads in slagging channel with cooling passage.
Described liftable supports and comprises: bolt, circular hole and base; There is interior pipe in base, have logical circular hole on inner pipe, base has bolt; The height that liftable supports interior pipe is changed by adjusting bolt.
Described orifice sealing device comprises: toughness steel ring, cushion rubber, slide plate and adjusting nut, the outer wall of toughness steel ring is connected with cushion rubber, slide plate and adjusting nut is connected with at the other end of toughness steel ring, by the size regulating adjusting nut moving slide board can change toughness steel ring, make cushion rubber and drill hole wall close contact, prevent gas leakage.
Described absorption pitch cone radius crosses filter cone tip 1 ~ 3cm; Described absorption cone angle is 90 ~ 120 °; Described filter cone is excessively inverted V-shaped, and angle is 25 ~ 30 °;
Described flow distribution plate being uniform-distribution with 150 ~ 200 apertures is the circular hole of 1 ~ 2mm.
The V-arrangement binary channels angle of described preposition nozzle is 120 ~ 150 °.
Resin beads in described slagging channel and conduit wall close contact, the resin beads in cooling passage does not contact with conduit wall.
Brill of the present invention cuts row's point integrated coal seam physical chemistry associating anti-reflection method, comprises the steps:
A, start rig and drive voltage-controlled drill bit successively through water-gas separator and orifice sealing device, make cushion rubber on toughness steel ring and drill hole wall close contact by adjusting nut moving slide board, prevent from leaking gas;
B, startup high-pressure hydraulic pump, regulate high-pressure hydraulic pump pressure regulator valve to make pressure gauge reading be 3 ~ 5Mpa; Rig promotes voltage-controlled bit drills and proceeds to desired location; In drilling process, water flows out from the cooling passage of preposition nozzle, prevents side nozzle from blocking, reduces the temperature of voltage-controlled drill bit simultaneously;
C, adjustment high-pressure hydraulic pump pressure regulator valve make pressure gauge reading be 15 ~ 20MPa, start dosing pump regulates dosing pump pressure regulator valve to make flowmeter reading be 1 ~ 1.5L/min simultaneously, chemical agent obtains concentration 6 ‰ dusting power drug jet after fully mixing in dusting power drug jet mixer with water under high pressure enters voltage-controlled drill bit through drilling rod, and realize slot by side nozzle impact coal-mass, the jet of dusting power drug simultaneously impacts cinder by the slagging channel of preposition nozzle, prevents plug-hole; In slot process, cinder enters water-gas separator through rotational flow generator, part gas gathered by hemispherical collection chamber and through transfer purifying box filter after, enter methane gas extraction pipeline, remaining water-gas mixture filters through filter cone, gas enters extraction pipeline by absorbing cone, and cinder is gone out by automatic discharge door row, and water enters anti-high pressure rubber pipe by main body outfall and by entering high-pressure hydraulic pump after filter process;
D, rotate voltage-controlled drill bit 25 ~ 35min, the pressure meter registration regulating pressure regulator valve is 3 ~ 5MPa, meanwhile, closes dosing pump;
E, voltage-controlled drill bit retreat 1 ~ 1.5m along direction, aperture, repeat step b, complete the slot of voltage-controlled drill bit the next position, go round and begin again, complete the slot of multiple position.
The chemical agent adopted in method is made up of host and auxiliary agent, and wherein host is chlorine dioxide, and auxiliary agent comprises MCRS-2 type surfactant and corrosion inhibiter phosphonate, and the proportioning of chlorine dioxide, MCRS-2 type surfactant and corrosion inhibiter phosphonate is 4:1:1.
Beneficial effect: the present invention, by chemical agent and water under high pressure mixing impact coal-mass are formed discharge space, impels coal seam pressure relief, cranny development, realizes physics anti-reflection.The crack of formation that coal seam physics is anti-reflection promotes that chemical agent permeates to coal body, and chemical reagent oxidizes corrodes coal body, increases coal body porosity and pore communication, realizes coal seam chemistry anti-reflection.Under geostatic stress effect, the porous dehiscence gap of chemical anti-reflection formation is caved in and is promoted that further coal body physics is anti-reflection, thus defines that physics is anti-reflection combines anti-reflection with the anti-reflection coal seam physical chemistry of mutually promoting of chemistry, and gas permeability of coal seam can improve 300 ~ 500 times.Utilize preposition injection stream impact cinder effectively can reduce the generation of plug-hole in slot process.In addition, water-gas separator can be separated the water-gas mixture of ejection, realizes recycling of water, improves work site environment.This device integration degree is high, practical, has applicability widely in the gas pumping of high methane low-permeable weak seam.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is mixer structure schematic diagram of the present invention.
Fig. 3 is preposition nozzle arrangements figure of the present invention.
Fig. 4 is that liftable of the present invention supports schematic diagram.
Fig. 5 is orifice sealing device schematic diagram of the present invention.
In figure: 1-high-pressure hydraulic pump, 2-dosing pump, 3-dosing pump pressure regulator valve, 4-high-pressure hydraulic pump control valve, 5-strainer, 6-dusting power drug jet mixer, 6-1-eddy flow guidance tape, 6-2-first mixing chamber, 6-3-flow distribution plate, 6-4-mist pipe, 6-5-fixed axis, 6-6-flight, 6-7-second mixing chamber, 7-anti-high pressure rubber pipe, 8-main body outfall, the voltage-controlled drill bit of 9-, 10-hangers, 11-rotational flow generator, 12-drilling rod, 13-see-through window, 14-ash gate, 15-rig, 16-coal seam, the preposition nozzle of 17-, 17-1-nozzle body, 17-2-slagging channel, 17-3-spring, 17-4-resin beads, 17-5-lowers the temperature passage, 18-side nozzle, 19-orifice sealing device, 19-1-toughness steel ring, 19-2-cushion rubber, 19-3-slide plate, 19-4-adjusting nut, 20-ball valve, 21-extraction pipeline, 22-transfer purifying box, 23-hemispherical collection chamber, 24-absorbs cone, 25-crosses filter cone, 26-filter plate, 27-liftable supports, 27-1-bolt, 27-2-circular hole, 27-3-base, 28-transfer purifying box outfall, 29-water-gas separator, 30-non retern valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
As shown in Figure 1, brill of the present invention cuts to arrange and divides integrated coal seam physical chemistry to combine anti-reflection system, by high-pressure hydraulic pump 1, dosing pump 2, dosing pump pressure regulator valve 3, high-pressure hydraulic pump control valve 4, strainer 5, dusting power drug jet mixer 6, high-pressure rubber pipe 7, main body outfall 8, voltage-controlled drill bit 9, hangers 10, rotational flow generator 11, drilling rod 12, see-through window 13, ash gate 14, rig 15, coal seam 16, preposition nozzle 17, side nozzle 18, orifice sealing device 19, ball valve 20, extraction pipeline 21, transfer purifying box 22, hemispherical collection chamber 23, absorb cone 24, cross filter cone 25, filter plate 26, liftable supports 27, transfer purifying box outfall 28, water-gas is separated 29, non retern valve device 30 is formed, transfer purifying box outfall 28 is connected with the input port of strainer 5 with high-pressure hydraulic pump 1 by high-pressure rubber pipe 7 with main body outfall 8, the delivery outlet of high-pressure hydraulic pump 1 is connected by water under high pressure and pump control valve 4 and the medicine jet mixer mixed 6 one ports, and the another port of dusting power drug jet mixer 6 is connected with the output of dosing pump pressure regulator valve 3 with dosing pump 2 by the non retern valve device 30 of series connection, the output port of dusting power drug jet mixer 6 is connected with the water pigtail of rig 15, and drilling rod 12 front end of rig 15, through hangers 10, is connected with voltage-controlled drill bit 9 at the end that has of drilling rod 12, voltage-controlled drill bit 9 has preposition nozzle 17, side nozzle 18 and orifice sealing device 19, rotational flow generator 11 is connected with in the lower end of hangers 10, be connected with water-gas in the lower end of rotational flow generator 11 and be separated 29, the bottom being separated 29 at water-gas is connected with liftable support 27, and being separated order in 29 at water-gas has absorption cone 24, crosses filter cone 25 and filter plate 26, be separated on 29 sidewalls at water-gas and be connected with see-through window 13 and ash gate 14, outfall 8 is arranged at the bottom of filter plate 26, and the outer wall being separated 29 tops at water-gas has hemispherical collection chamber 23, transfer purifying box 22 is connected with hemispherical collection chamber 23 by pipeline, and pass into water-gas be separated in 29 with absorb cone 24 and be connected, transfer purifying box outfall 28 is arranged at the bottom of transfer purifying box 22, extraction pipeline 21 is passed in transfer purifying box 22 by ball valve 20 and pipeline.
Described dusting power drug jet mixer 6 comprises eddy flow guidance tape 6-1, the first mixing chamber 6-2, flow distribution plate 6-3, mist pipe 6-4, fixed axis 6-5, flight 6-6 and the second mixing chamber 6-7; Mist pipe 6-4 is connected to two ends of the first mixing chamber 6-2, the second mixing chamber 6-7 is connected with in the middle part of the first mixing chamber 6-2, in the second mixing chamber 6-7, there are two ends of flight 6-6 in the first mixing chamber 6-2 to have eddy flow guidance tape 6-1, be connected on fixed axis 6-5 at eddy flow guidance tape 6-1, in the first mixing chamber, also have flow distribution plate 6-3 flow distribution plate 6-3 adjacent with eddy flow guidance tape 6-1.
Described preposition nozzle 17 comprises nozzle body 17-1, slagging channel 17-2, spring 17-3, resin beads 17-4 and cooling passage 17-5; Slagging channel 17-2 diverges to cooling passage 17-5 is V-shaped, and is positioned at one end of nozzle body 17-1, and be all linked in sequence spring 17-3 and resin beads 17-4 in slagging channel 17-2 with cooling passage 17-5.
Described liftable supports 27 and comprises: bolt 27-1, circular hole 27-2 and base 27-3; There is interior pipe in base 27-3, have logical circular hole 27-2 on inner pipe, base 27-3 has bolt 27-1; The height that liftable supports pipe in 27 is changed by adjusting bolt 27-1.
Described orifice sealing device 19 comprises: toughness steel ring 19-1, cushion rubber 19-2, slide plate 19-3 and adjusting nut 19-4, the outer wall of toughness steel ring 19-1 is connected with cushion rubber 19-2, slide plate 19-3 and adjusting nut 19-4 is connected with at the other end of toughness steel ring 19-1, by the size regulating adjusting nut 19-4 moving slide board 19-3 can change toughness steel ring 19-1, make cushion rubber 19-2 and drill hole wall close contact, prevent gas leakage.
Described absorption cone 24 is apart from crossing filter cone 25 tip 1 ~ 3cm;
It is 90 ~ 120 ° that 24 angles are bored in described absorption; Described crosses filter cone 25 in inverted V-shaped, and angle is 25 ~ 30 °;
Described rotational flow generator 11 is fixed on water-gas separator 29 wall.
As shown in Figure 2, described dusting power drug jet mixer 6 comprises eddy flow guidance tape 6-1, the first mixing chamber 6-2, flow distribution plate 6-3, mist pipe 6-4, fixed axis 6-5, flight 6-6 and the second mixing chamber 6-7;
Described eddy flow guidance tape 6-1 to be fixed on fixed axis 6-5 and not to rotate with air-flow; Described flow distribution plate 6-3 being uniform-distribution with 150 ~ 200 apertures is the circular hole of 1 ~ 2mm, and chemical agent enters the second mixing chamber 6-7 after being shunted by flow distribution plate 6-3 with water under high pressure after the first mixing chamber 6-2 fully mixes, and again mixes at eddy flow guidance tape 6-1.
As shown in Figure 3, described preposition nozzle 17 comprises nozzle body 17-1, slagging channel 17-2, spring 17-3, resin beads 17-4 and cooling passage 17-5, slagging channel 17-2 and diverges to cooling passage 17-5 is V-shaped, and angle is 120 ~ 150 °; Resin beads 17-4 in described slagging channel 17-2 and conduit wall close contact, resin beads 17-4 in cooling passage 17-5 does not contact with conduit wall, when drilling, low-pressure water is flowed out by cooling passage 17-5, close at water under high pressure effect borehole cooling passage 17-5 during slot, slagging channel 17-2 opens, and water under high pressure flows out from slagging channel 17-2.
As shown in Figure 4, described liftable supports 27 and comprises bolt 27-1, circular hole 27-2, base 27-3, can change by adjusting bolt 27-1 the height that liftable supports 27.
As shown in Figure 5, described orifice sealing device 19 comprises toughness steel ring 19-1, cushion rubber 19-2, slide plate 19-3, adjusting nut 19-4, by the size regulating adjusting nut 19-4 moving slide board 19-3 can change toughness steel ring 19-1, make cushion rubber 19-2 and drill hole wall close contact, prevent gas leakage.
Brill of the present invention cuts row's point integrated coal seam physical chemistry associating anti-reflection method:
A, start rig 15 and drive voltage-controlled drill bit 9 successively through water-gas separator 29 and orifice sealing device 19, make cushion rubber 19-2 on toughness steel ring 19-1 and drill hole wall close contact by adjusting nut 19-4 moving slide board 19-3, prevent from leaking gas.
B, startup high-pressure hydraulic pump 1, regulate high-pressure hydraulic pump pressure regulator valve 4 to make pressure gauge reading be 3 ~ 5MPa.Rig 15 promotes voltage-controlled drill bit 9 and creeps into desired location.In drilling process, water flows out from the cooling passage 17-5 of preposition nozzle 17, prevents side nozzle 18 from blocking, reduces the temperature of voltage-controlled drill bit 9 simultaneously;
C, adjustment high-pressure hydraulic pump pressure regulator valve 4 make pressure gauge reading be 15 ~ 20MPa, start dosing pump 2 regulates dosing pump pressure regulator valve 3 to make flowmeter reading be 1 ~ 1.5L/min simultaneously, chemical agent obtains concentration 6 ‰ dusting power drug jet after fully mixing in dusting power drug jet mixer 6 with water under high pressure enters voltage-controlled drill bit 9 through drilling rod 12, and realize slot by side nozzle 18 impact coal-mass, the jet of dusting power drug simultaneously impacts cinder by the slagging channel 17-2 of preposition nozzle 17, prevents plug-hole; In slot process, cinder enters water-gas separator 29 through rotational flow generator 11, part gas gathered by hemispherical collection chamber 23 and through transfer purifying box filter after, enter methane gas extraction pipeline 21, remaining water-gas mixture filters through filter cone 25, gas by absorb cone 24 enter extraction pipeline 21, cinder is discharged by automatic discharge door 14, water enter anti-high pressure rubber pipe 7 by main body outfall 28 and by strainer 5 process after enter high-pressure hydraulic pump 1;
D, rotate voltage-controlled drill bit 925 ~ 35min, the pressure meter registration regulating pressure regulator valve is 3 ~ 5MPa, meanwhile, closes dosing pump (2);
E, voltage-controlled drill bit 9 retreat 1 ~ 1.5m along direction, aperture, repeat step b, complete the slot of voltage-controlled drill bit 9 the next position, go round and begin again, complete the slot of multiple position.
Claims (10)
1. a brill cuts to arrange and divides integrated coal seam physical chemistry to combine anti-reflection system, it is characterized in that: this associating is anti-reflection, and system comprises: high-pressure hydraulic pump, dosing pump, dosing pump pressure regulator valve, high-pressure hydraulic pump control valve, strainer, dusting power drug jet mixer, high-pressure rubber pipe, main body outfall, voltage-controlled drill bit, hangers, rotational flow generator, drilling rod, see-through window, ash gate, rig, coal seam, preposition nozzle, side nozzle, orifice sealing device, ball valve, extraction pipeline, transfer purifying box, hemispherical collection chamber, absorb cone, cross filter cone, filter plate, liftable supports, transfer purifying box outfall, water-gas is separated and non retern valve device, transfer purifying box outfall is connected with the input port of high-pressure hydraulic pump with strainer by high-pressure rubber pipe with main body outfall, the delivery outlet of high-pressure hydraulic pump is connected by water under high pressure and pump control valve and the medicine jet mixer mixed port, and the another port of dusting power drug jet mixer is connected with dosing delivery side of pump with dosing pump pressure regulator valve by the non retern valve device of series connection, the output port of dusting power drug jet mixer is connected with the water pigtail of rig, and the drilling rod front end of rig, through hangers, is connected with voltage-controlled drill bit at the end that has of drilling rod, voltage-controlled drill bit has preposition nozzle, side nozzle and orifice sealing device, be connected with rotational flow generator in the lower end of hangers, be connected with water-gas separation in the lower end of rotational flow generator, be connected with liftable support in the bottom that water-gas is separated, in water-gas is separated, order has absorption cone, crosses filter cone and filter plate, be separated on sidewall at water-gas and be connected with see-through window and ash gate, outfall is arranged at the bottom of filter plate, and the outer wall on water-gas separation top has hemispherical collection chamber, transfer purifying box is connected with hemispherical collection chamber by pipeline, and pass into water-gas be separated in bore and be connected with absorbing, transfer purifying box outfall is arranged at the bottom of transfer purifying box, extraction pipeline is passed in transfer purifying box by ball valve and pipeline.
2. brill according to claim 1 cuts to arrange and divides integrated coal seam physical chemistry to combine anti-reflection system, it is characterized in that: described dusting power drug jet mixer comprises eddy flow guidance tape, the first mixing chamber, flow distribution plate, mist pipe, fixed axis, flight and the second mixing chamber; Mist pipe is connected to two ends of the first mixing chamber, the second mixing chamber is connected with in the middle part of the first mixing chamber, in the second mixing chamber, there are the two ends of flight in the first mixing chamber to have eddy flow guidance tape, be connected on fixed axis at eddy flow guidance tape, in the first mixing chamber, also have flow distribution plate, flow distribution plate is adjacent with eddy flow guidance tape.
3. brill according to claim 1 cuts to arrange and divides integrated coal seam physical chemistry to combine anti-reflection system, it is characterized in that: described preposition nozzle comprises: nozzle body, slagging channel, spring, resin beads and cooling passage; Passage is V-shaped diverges to for slagging channel and cooling, and is positioned at one end of nozzle body, and be all linked in sequence spring and resin beads in slagging channel with cooling passage; The V-arrangement binary channels angle of described preposition nozzle is 120 ~ 150 °.
4. brill according to claim 1 cuts to arrange and divides integrated coal seam physical chemistry to combine anti-reflection system, it is characterized in that: described liftable supports and comprises: bolt, circular hole and base; There is interior pipe in base, have logical circular hole on inner pipe, base has bolt; The height that liftable supports interior pipe is changed by adjusting bolt.
5. brill according to claim 1 cuts to arrange and divides integrated coal seam physical chemistry to combine anti-reflection system, it is characterized in that: described orifice sealing device comprises: toughness steel ring, cushion rubber, slide plate and adjusting nut, the outer wall of toughness steel ring is connected with cushion rubber, slide plate and adjusting nut is connected with at the other end of toughness steel ring, by the size regulating adjusting nut moving slide board can change toughness steel ring, make cushion rubber and drill hole wall close contact, prevent gas leakage.
6. brill according to claim 1 cuts to arrange and divides integrated coal seam physical chemistry to combine anti-reflection system, it is characterized in that: described absorption pitch cone radius crosses filter cone tip 1 ~ 3cm; Described absorption cone angle is 90 ~ 120 °; Described filter cone is excessively inverted V-shaped, and angle is 25 ~ 30 °.
7. brill according to claim 1 cuts to arrange and divides integrated coal seam physical chemistry to combine anti-reflection system, it is characterized in that: described flow distribution plate being evenly distributed with 150 ~ 200 apertures is the circular hole of 1 ~ 2mm.
8. brill according to claim 1 cuts to arrange and divides integrated coal seam physical chemistry to combine anti-reflection system, and it is characterized in that: the resin beads in described slagging channel and conduit wall close contact, the resin beads in cooling passage does not contact with conduit wall.
9. brill according to claim 1 cuts the method that row's point integrated coal seam physical chemistry combines anti-reflection system, it is characterized in that comprising the steps:
A, start rig and drive voltage-controlled drill bit successively through water-gas separator and orifice sealing device, make cushion rubber on toughness steel ring and drill hole wall close contact by adjusting nut moving slide board, prevent from leaking gas;
B, startup high-pressure hydraulic pump, regulate high-pressure hydraulic pump pressure regulator valve to make pressure gauge reading be 3 ~ 5Mpa; Rig promotes voltage-controlled bit drills and proceeds to desired location; In drilling process, water flows out from the cooling passage of preposition nozzle, prevents side nozzle from blocking, reduces the temperature of voltage-controlled drill bit simultaneously;
C, adjustment high-pressure hydraulic pump pressure regulator valve make pressure gauge reading be 15 ~ 20MPa, start dosing pump regulates dosing pump pressure regulator valve to make flowmeter reading be 1 ~ 1.5L/min simultaneously, chemical agent obtains concentration 6 ‰ dusting power drug jet after fully mixing in dusting power drug jet mixer with water under high pressure enters voltage-controlled drill bit through drilling rod, and realize slot by side nozzle impact coal-mass, the jet of dusting power drug simultaneously impacts cinder by the slagging channel of preposition nozzle, prevents plug-hole; In slot process, cinder enters water-gas separator through rotational flow generator, part gas gathered by hemispherical collection chamber and through transfer purifying box filter after, enter methane gas extraction pipeline, remaining water-gas mixture filters through filter cone, gas enters extraction pipeline by absorbing cone, and cinder is gone out by automatic discharge door row, and water enters anti-high pressure rubber pipe by main body outfall and by entering high-pressure hydraulic pump after filter process;
D, rotate voltage-controlled drill bit 25 ~ 35min, the pressure meter registration regulating pressure regulator valve is 3 ~ 5MPa, meanwhile, closes dosing pump (2);
E, voltage-controlled drill bit retreat 1 ~ 1.5m along direction, aperture, repeat step b, complete the slot of voltage-controlled drill bit the next position, go round and begin again, complete the slot of multiple position.
10. brill according to claim 9 cuts the method that row's point integrated coal seam physical chemistry combines anti-reflection system, it is characterized in that: described chemical agent is made up of host and auxiliary agent, wherein host is chlorine dioxide, auxiliary agent comprises MCRS-2 type surfactant and corrosion inhibiter phosphonate, and the proportioning of chlorine dioxide, MCRS-2 type surfactant and corrosion inhibiter phosphonate is 4:1:1.
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