CN201391331Y - Integral in-hole drilling tool for drilling slotting punched hole of coal seam - Google Patents

Integral in-hole drilling tool for drilling slotting punched hole of coal seam Download PDF

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Publication number
CN201391331Y
CN201391331Y CN200920089773U CN200920089773U CN201391331Y CN 201391331 Y CN201391331 Y CN 201391331Y CN 200920089773 U CN200920089773 U CN 200920089773U CN 200920089773 U CN200920089773 U CN 200920089773U CN 201391331 Y CN201391331 Y CN 201391331Y
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China
Prior art keywords
hole
valve core
slot
drilling
punching
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Expired - Fee Related
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CN200920089773U
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Chinese (zh)
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孙玉宁
王永龙
宋维宾
熊祖强
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Henan University of Technology
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Henan University of Technology
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Abstract

The utility model discloses an integral in-hole drilling tool for drilling slotting punched hole of a coal seam, comprising a water supply or air supply device. A drilling machine is provided with a high-pressure sealing drilling rod the outer surface of which is provided with a screw conveying groove or a screw convex rib with the height of 1 to 6mm; the water supply or air supply device is connected with the high-pressure sealing drilling rod at the position of an orifice; a slotting punching valve is arranged between the high-pressure sealing drilling rod and a drilling bit; and the high-pressure sealing drilling rod, the slotting punching valve and the drilling bit are coaxially arranged. The drilling tool has novel design, easy operation, safety and reliability, improves outburst elimination efficiency, is mainly used for drilling of a soft and protruding coal seam and anti-reflection and outburst elimination after drilling, and realizes integrated operation of drilling, slotting or punching and outburst elimination.

Description

Drilling tool in the hole-punching integrated hole of slot is crept in the coal seam
Technical field
The utility model belong to the colliery soft projecting coal bed drill and drill after anti-reflection extinction technical field, be specifically related to a kind ofly to be used for that the coal seam is crept into, high-pressure hydraulic slot or the used coal seam of punching construction creep into drilling tool in the hole-punching integrated hole of slot.
Background technology
For a long time, projecting coal bed drilling with the extinction problem is the difficult problem of domestic and international projecting coal bed gas control of generally acknowledging.China most projecting coal bed be relatively poor relatively soft projecting coal bed of gas permeability, to drilling and anti-reflection extinction is one of domestic research focus in the coal seam.The anti-reflection method of slot commonly used at present is by creeping into the boring of enough degree of depth, drilling rod is withdrawed from fully, then high-pressure pump is connected with the seamless steel pipe that is welded with high pressure nozzle by high-pressure hose, manually insert boring, simultaneously will be by manual or other chucking device rotation slot or punching, when occurring collapsing the hole, the slot hole punched device can't insert boring and carry out slot or punching, this kind job practices efficient is low, and exists potential safety hazard.
The utility model content
The utility model is in order to solve weak point of the prior art, provide a kind of easy and simple to handle, security performance good, operating efficiency is high, can creep into simultaneously, drilling tool in the hole-punching integrated hole of slot is crept in the coal seam of slot, punching.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: drilling tool in the hole-punching integrated hole of slot is crept in the coal seam, comprise and supplying water or air supply device, rig is provided with the high pressure sealing drilling rod, the external surface of high pressure sealing drilling rod is provided with spiral conveying groove or is provided with the spiral convex rib of height 1~6mm at its external surface, water supply or air supply device are connected with the high pressure sealing drilling rod at place, aperture, slot punching valve is installed, high pressure sealing drilling rod, slot punching valve and the coaxial setting of drill bit between described high pressure sealing drilling rod and the drill bit.
Described slot punching valve comprises that two ends are equipped with the valve casing of screw thread and hollow, are provided with the slot hole punched device in the valve casing.
Described slot hole punched device comprises non-return valve core, fixed spool, movable spool and cutting nozzles, the non-return valve core periphery is fixedlyed connected with the valve casing inwall, non-return valve core axially is provided with through hole, movable spool is positioned at the non-return valve core rear, it comprises fixedlys connected with the valve casing inwall and first fixed spool and first sliding valve core of hollow, first sliding valve core is made up of for two sections front and back, the back segment external diameter is greater than the leading portion external diameter, the leading portion inner chamber is anterior suitable with the non-return valve core rear portion, the leading portion periphery is provided with first spring that two ends cooperate with first fixed spool and the first sliding valve core back segment roof pressure respectively, the first sliding valve core leading portion and the first fixed spool inwall sliding connection, back segment and the sliding connection of valve casing inwall, be provided with first annular retaining ring that cooperates with its roof pressure in the first sliding valve core back segment rear portion on the valve casing inwall, cutting nozzles is arranged in the valve casing housing of fragment position behind first sliding valve core.
The described first sliding valve core back segment end face is the cumulative curved surface that the conical surface adds curve form, the first spring position place on the valve casing housing on the first sliding valve core leading portion is provided with air vent, be provided with filter core in the air vent, between first fixed spool and the valve casing inwall, be equipped with sealing ring between the first sliding valve core rear end and the valve casing inwall.
Described cutting nozzles evenly is provided with 2~6 at the valve casing circumference, and it is cylindric poroid structure for the conical surface adds.
Described punching nozzle evenly is provided with 2~6 at the valve casing circumference, and it is cylindric poroid structure, and its axis and valve casing axis angle are between 15 °~75 °.
Be provided with dust guard in slot hole punched device the place ahead in the described valve casing, described dust guard comprises fixedlys connected with the valve casing inwall and second fixed spool and second sliding valve core of hollow, second sliding valve core is located in the second fixed spool inside, second sliding valve core is made up of front slide spool that is spirally connected and back sliding valve core, front slide spool front end and sliding valve core rear end, back external diameter are all greater than the second fixed spool internal diameter, back sliding valve core is axially arranged with the limbers, the second fixed spool inwall front end is provided with second collar stop with its one, be equipped with second spring on second sliding valve core between second collar stop and the sliding valve core rear end, back, the second fixed spool front end inner chamber is the circumference scalariform structure that cooperates with the front slide spool.
The external diameter of described slot valve body is suitable with high pressure sealing drilling rod external diameter.
Described slot valve body two ends are spirally connected by a change joint and high pressure sealing drilling rod and drill bit respectively.
Described non-return valve core, first fixed spool, second fixed spool all are connected by screw with valve casing.
Adopt said structure, slot punching valve is set between high pressure sealing drilling rod and drill bit, this valve is as the part of drilling apparatus, realize when creeping into ventilating or water flowing, move back when boring and carry out the slot operation, realized creeping into, the institutional operation of slot and extinction, improved operating efficiency; The valve casing of slot valve body and high pressure sealing drilling rod and drill bit are spirally connected, and the slot hole punched device is set in it can carries out the slot operation when moving back brill; The through hole of non-return valve core on axially be for increase fluid by the time damping, form pressure differential when being convenient to fluid and flowing through valve pocket easily, more help the switching of valve body, the power that fluid can formation activity spool moves forward, ventilating or water carries out the coal seam when creeping into, fluid pressure is less, therefore first spring in the first sliding valve core outside guarantees when creeping into, spring force and fluid pressure that first sliding valve core is suffered offset, axial passage opens when having guaranteed to creep into, when moving back the brill slot, water flow pressure is greater than the suffered spring force of first sliding valve core, cause first sliding valve core to move forward, the flowing water passage is by the non-return valve core shutoff, and water under high pressure just passes through radially slot of cutting nozzles; The cumulative curved surface can make the cohesion better in the axial direction of pressure flow or air-flow; Air vent can guarantee the sensitivity of first spring action, crosses filter core and prevents the normal operating conditions that dust enters influences first spring; When creeping into, dust guard is opened, and when moving back the brill slot, dust guard with the axial passage shutoff, plays preventing that the dust refluence from having influence on normal slot operation under second spring action; Sealing ring plays sealing, prevent the effect of leaking; This set of cutting nozzles needn't need very high hydraulic pressure, helps carrying out deep hole waterpower and cuts the hole; Connect by screw, convenient and swift, be easy to dismounting; The slot valve body is suitable with high pressure sealing drilling rod external diameter, does not influence to creep into and move back the hole work of cutting of boring; The utility model modern design, easy operating, safe and reliable, move two courses of work of switching air intake and water inlet by first sliding valve core, slot or punching when moving back the high pressure sealing drilling rod, with respect to common unit, reduced by a procedure, save the time, avoided the difficulty that is difficult to insert, improved extinction efficient.Simultaneously, in creeping into slot, punch process, that has used autonomous utility model takes off hole cooling high pressure sealing drilling rod (200610111830.7), strengthened the deslagging effect, drilling depth and drilling efficiency have been improved, realized creeping into, slot or punching, extinction institutional operation, increase the degree of depth of creeping into, can correspondingly increase the extinction degree of depth.
Description of drawings
Fig. 1 is the structural representation of the utility model duty;
Fig. 2 is the structural representation of slot punching valve of the present utility model when creeping into state;
Fig. 3 is the structural representation of slot punching valve of the present utility model when moving back the brill state;
Fig. 4 is the cross-sectional structure schematic diagram of the back sliding valve core of the utility model second sliding valve core;
Fig. 5 is the mounting structure schematic diagram of the utility model cutting nozzles of being applied to the varied angle hydraulic flushing in hole.
The specific embodiment
As Fig. 1~shown in Figure 5, drilling tool in the hole-punching integrated hole of slot is crept in coal seam of the present utility model, comprise rig 31, supply water or air supply device, rig 31 is provided with high pressure sealing drilling rod 25, water supply or air supply device comprise high pressure pumping plant 22, flexible pipe 23 and water supplying apparatus or air feed device 24, flexible pipe 23 1 ends are connected with high pressure pumping plant 22, the other end is connected with water supplying apparatus or air feed device 24, water supplying apparatus or air feed device 24 are connected with 25 imports of high pressure sealing drilling rod, high pressure sealing drilling rod 25 front ends become joint 27 by one and are bolted with slot punching valve 28, slot punching valve 28 front ends become joint 29 by one and are bolted with drill bit 30, high pressure sealing drilling rod 25, slot punching valve 28 and drill bit 30 coaxial settings, the external diameter of slot punching valve 28 is suitable with high pressure sealing drilling rod 25 external diameters.
Slot punching valve 28 comprises that two ends are equipped with the valve casing 10 of interior screw thread 1 and hollow, and the material of valve casing 10 requires to adopt intensity and the good structural alloy steel of toughness.Be provided with the slot hole punched device in the valve casing 10, the slot hole punched device comprises non-return valve core 6, movable spool and cutting nozzles 12, cutting nozzles 12 is critical elements of water jet equipment, it has finally formed the water jet operating mode, restricting system's cutting performance, its material itself needs wear-resisting, high pressure resistant, corrosion-resistant, circular cone convergence structure is adopted in its cross section simultaneously, or adopt other curved-surface structure, cooperate suitable nozzle diameter, thereby when jet, can form enough jet impact forces, for the cutting coal seam provides enough big cutting force.Non-return valve core 6 peripheries are fixedlyed connected by screw 8 with valve casing 10 inwalls, non-return valve core 6 axially is provided with through hole 4, movable spool is positioned at non-return valve core 6 rears, it comprises fixedlys connected with valve casing 10 inwalls and first fixed spool 7 and first sliding valve core 9 of hollow, first sliding valve core 9 is made up of for two sections front and back, the back segment external diameter is greater than the leading portion external diameter, leading portion inner chamber front portion can cooperate with non-return valve core 6, the leading portion periphery is provided with first spring 19 that two ends cooperate with first fixed spool 7 and first sliding valve core, 9 back segment roof pressures respectively, first sliding valve core, 9 leading portions and the 7 inwall sliding connections of first fixed spool, back segment and valve casing 10 inwall sliding connections, be provided with first collar stop 21 that cooperates with its roof pressure in first sliding valve core, 9 back segment rear portions on valve casing 10 inwalls, cutting nozzles 12 is arranged in valve casing 10 housings of first sliding valve core, 9 back fragment position, cutting nozzles 12 evenly is provided with 2~6 at valve casing 10 circumference, and first sliding valve core, 9 back segment end faces are the cumulative curved surface 11 that the conical surface adds curve form.First spring, 19 positions on valve casing 10 housings on first sliding valve core, 9 leading portions are provided with air vent 40, be provided with filter core 17 in the air vent 40, it is fixing by jackscrew 18 to cross filter core 17, is provided with between first fixed spool 7 and valve casing 10 inwalls between sealing ring 16, first sliding valve core, 9 rear ends and valve casing 10 inwalls and is provided with sealing ring 20.
Be provided with dust guard in slot hole punched device the place ahead in the valve casing 10, dust guard comprises fixedlys connected by screw 15 with valve casing 10 inwalls and second fixed spool 2 and second sliding valve core of hollow, second sliding valve core is located in second fixed spool, 2 inside, second sliding valve core is made up of front slide spool 13 that is spirally connected mutually and back sliding valve core 3, second sliding valve core is provided with two sections, be convenient to installing/dismounting, front slide spool 13 front ends and back sliding valve core 3 rear end external diameters are all greater than second fixed spool, 2 internal diameters, back sliding valve core 3 cross sections are approximately three blade constructions with circle, be axially arranged with limbers 41 between three blades, second fixed spool, 2 inwall front ends are provided with second collar stop 42, second collar stop 42 and second fixed spool 2 are one processing, being equipped with second spring, 14, the second fixed spools, 2 front end inner chambers on the back sliding valve core 3 between second collar stop 42 and sliding valve core 3 rear ends, back is the circumference scalariform structure that cooperates with front slide spool 13.
Introduce concrete using method of the present utility model below:
One, drilling process: utilize water supplying apparatus or air feed device to provide current or distinguished and admirable to drill bit by hollow high pressure sealing drilling rod and slot punching valve, with current or distinguished and admirablely be discharged to outside the hole as the cinder of deslagging power in will holing, shown in seeing figures.1.and.2, if adopt wind power slag-discharging to creep into, the borehole sealing device 26 that is installed in drilling orifice can be dust arrester with dust exhaust apparatus 32 combinations, guarantee in the process of creeping into the cleaning of tunnel environment; When adopting hydraulic slag discharging to creep into, dust arrester can be installed, connect common water supplying apparatus or air feed device 24, be connected by flexible pipe 23 on the air supply line or water supply line in tunnel, current or the distinguished and admirable pressure that cumulative curved surface 11 is formed and the spring force of first spring 19 offset in the drilling process, first sliding valve core 9 is stablized motionless, cutting nozzles 12 is isolated with axial passage, the pressure of sliding valve core 3 is greater than the spring force of second spring 14 after current or the distinguished and admirable promotion, front slide spool 13 is moved forward open axial passage, finish the fluid deslagging and creep into operation.
Two, move back drilling coal cutting body process: after drilling construction finishes, employing has the water supplying apparatus of relief valve, starting the high pressure pumping plant improves pressure and the flow that supplies water, the pumping plant High-Pressure Water drives slot punching valve events, the sealing axial fluid passage, open footpath fluid passage, high-pressure spray is realized slot or punching by cutting nozzles or punching nozzle.With reference to Fig. 1 and shown in Figure 3, when the boring of enough degree of depth is crept in coal seam 44, while need carry out moving back the brill slot.Before slot, can the water-gas separator be installed at drilling orifice, be replaced by water-gas separator with borehole sealing device 26 and dust exhaust apparatus 32 combinations this moment, change the special-purpose water supplying apparatus that has relief valve 24 at the afterbody of high pressure sealing drilling rod 25 then, flexible pipe 23 will adopt high-pressure hose simultaneously, at least required pressure in the time of can bearing slot is connected to high-pressure hose 23 on the high pressure pumping plant 22.Move back when boring slot, the pressure that High-Pressure Water forms cumulative curved surface 11 is greater than the spring force of first spring 19, promote first sliding valve core 9 and move forward to first sliding valve core, 9 inner chamber front ends by non-return valve core 6 shutoff, at this moment, whole axial passage is by shutoff, cutting nozzles 12 is communicated with water stream channel, and High-Pressure Water is the cutting nozzles 12 radial spray High-Pressure Waters by being arranged on valve casing 10 circumference just, the cutting coal body.Simultaneously, second sliding valve core is returned to initial position under the effect of second spring 14, front slide spool 13 is with the inner chamber shutoff of second fixed spool 2, stop coal dust to enter axial passage, when particularly gas is taken the coal dust refluence, can guarantee the cleaning of spool equally.In the slot process, be used the high pressure sealing drilling rod 25 that external surface is carved with spiral conveying groove or is provided with spiral convex rib at its external surface, the rotation slot, this kind slotting process can guarantee cinder outwards conveying under the agitaion of high pressure sealing drilling rod that hole internal cause slot release produces, and has prevented that boring from a large amount of cinders gatherings occurring and stopping up the phenomenon of holing in the slot process; In the slot process,, so just can move back to creep into and go the slot of next position, hole simultaneously, because in the coal body release at place, position, slot hole, reached the purpose of coal body slot extinction this moment if the slot place produces the coal big gun in boring.Can be used in order better the slot extinction to be carried out in 44 deeps, coal seam, after position, a certain hole slot finishes, return and to remove high pressure sealing drilling rod 25 and carry out slot to next position, hole, when needing dismounting high pressure sealing drilling rod, need at first open the relief valve of water supplying apparatus 24, treat the water release pressure that accumulates in the high pressure sealing drilling rod or get rid of after carry out high pressure sealing drilling rod 25 dismantlement works again.
Three, move back the drilling hole process:
When carrying out punching to projecting coal bed 44, the 44 work plane the place aheads, coal seam that needing punching, by the utility model cutting nozzles is carried out local improvement, just can carry out the deep hole hydraulic flushing in hole, its structure is mainly at cutting nozzles 12 places, make spray cutting nozzles 12 into cylindrical bore type nozzle 33 shown in Figure 5, because do not need very high pressure during punching, the central axis and the vertical curve of cylinder nozzle have a drift angle a simultaneously, the direction deflection drilling direction of punching nozzle 33 outlets, between the angle of drift angle a can be selected 15 °~75 ° according to the scope of punching, promptly this drift angle and valve casing 10 axis angles were between 75 °~15 °.Thereby realize the deep hole hydraulic flushing in hole, the operating process of its punching and the process of hydraulic slotted liner technique are similar.So just can realize the deep hole hydraulic flushing in hole, can improve the extinction scope greatly, reduce potential safety hazard simultaneously.

Claims (10)

1, drilling tool in the hole-punching integrated hole of slot is crept in the coal seam, comprise and supplying water or air supply device, rig is provided with the high pressure sealing drilling rod, the external surface of high pressure sealing drilling rod is provided with spiral conveying groove or is provided with the spiral convex rib of height 1~6mm at its external surface, water supply or air supply device are connected with the high pressure sealing drilling rod at place, aperture, it is characterized in that: slot punching valve is installed, high pressure sealing drilling rod, slot punching valve and the coaxial setting of drill bit between described high pressure sealing drilling rod and the drill bit.
2 creep into drilling tool in the hole-punching integrated hole of slot according to right 1 described coal seam, and be characterised in that: described slot punching valve comprises that two ends are equipped with the valve casing of screw thread and hollow, are provided with the slot hole punched device in the valve casing.
3, creep into drilling tool in the hole-punching integrated hole of slot according to right 2 described coal seams, be characterised in that: described slot hole punched device comprises non-return valve core, fixed spool, movable spool and cutting nozzles, the non-return valve core periphery is fixedlyed connected with the valve casing inwall, non-return valve core axially is provided with through hole, movable spool is positioned at the non-return valve core rear, it comprises fixedlys connected with the valve casing inwall and first fixed spool and first sliding valve core of hollow, first sliding valve core is made up of for two sections front and back, the back segment external diameter is greater than the leading portion external diameter, the leading portion inner chamber is anterior suitable with the non-return valve core rear portion, the leading portion periphery is provided with first spring that two ends cooperate with first fixed spool and the first sliding valve core back segment roof pressure respectively, the first sliding valve core leading portion and the first fixed spool inwall sliding connection, back segment and the sliding connection of valve casing inwall, be provided with first annular retaining ring that cooperates with its roof pressure in the first sliding valve core back segment rear portion on the valve casing inwall, cutting nozzles is arranged in the valve casing housing of fragment position behind first sliding valve core.
4, drilling tool in the hole-punching integrated hole of slot is crept in coal seam according to claim 3, it is characterized in that: the described first sliding valve core back segment end face is the cumulative curved surface that the conical surface adds curve form, the first spring position place on the valve casing housing on the first sliding valve core leading portion is provided with air vent, be provided with filter core in the air vent, between first fixed spool and the valve casing inwall, be equipped with sealing ring between the first sliding valve core rear end and the valve casing inwall.
5, drilling tool in the hole-punching integrated hole of slot is crept in coal seam according to claim 4, it is characterized in that: described cutting nozzles evenly is provided with 2~6 at the valve casing circumference, and it is cylindric poroid structure for the conical surface adds.
6, drilling tool in the hole-punching integrated hole of slot is crept in coal seam according to claim 4, it is characterized in that: described punching nozzle evenly is provided with 2~6 at the valve casing circumference, and it is cylindric poroid structure, and its axis and valve casing axis angle are between 15 °~75 °.
7, creep into drilling tool in the hole-punching integrated hole of slot according to claim 5 or 6 described coal seams, it is characterized in that: be provided with dust guard in slot hole punched device the place ahead in the described valve casing, described dust guard comprises fixedlys connected with the valve casing inwall and second fixed spool and second sliding valve core of hollow, second sliding valve core is located in the second fixed spool inside, second sliding valve core is made up of front slide spool that is spirally connected and back sliding valve core, front slide spool front end and sliding valve core rear end, back external diameter are all greater than the second fixed spool internal diameter, back sliding valve core is axially arranged with the limbers, the second fixed spool inwall front end is provided with second collar stop with the fixed spool one, be equipped with second spring on second sliding valve core between second collar stop and the sliding valve core rear end, back, the second fixed spool front end inner chamber is the circumference scalariform structure that cooperates with the front slide spool.
8, drilling tool in the hole-punching integrated hole of slot is crept in coal seam according to claim 7, it is characterized in that: the external diameter of described slot valve body is suitable with high pressure sealing drilling rod external diameter.
9, drilling tool in the hole-punching integrated hole of slot is crept in coal seam according to claim 8, it is characterized in that: described slot valve body two ends are spirally connected by a change joint and high pressure sealing drilling rod and drill bit respectively.
10, drilling tool in the hole-punching integrated hole of slot is crept in coal seam according to claim 9, it is characterized in that: described non-return valve core, first fixed spool, second fixed spool all are connected by screw with valve casing.
CN200920089773U 2009-04-23 2009-04-23 Integral in-hole drilling tool for drilling slotting punched hole of coal seam Expired - Fee Related CN201391331Y (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102199991A (en) * 2011-05-05 2011-09-28 河南理工大学 Drilling-fixing integrated device and method for yolk coal terrane
CN102465712A (en) * 2010-11-15 2012-05-23 湖南汉寿中煤科技有限公司 Drilling-cutting-linked coal layer gas drainage and outburst prevention system and method based on ultra-long drilling and high-pressure water jetting
CN101532391B (en) * 2009-04-23 2012-11-28 河南理工大学 In-hole drilling tool integrating drilling, slotting and punching coal seam and using method thereof
CN103104222A (en) * 2013-02-01 2013-05-15 中北大学 Method for pumping and collecting coal bed gas through combination of ground vertical well and long bedding drill hole
CN103470297A (en) * 2013-09-10 2013-12-25 湖南省煤炭科学研究所 Drilling, pumping and discharging integrated coal seam pressure relief and permeability improvement device and using method thereof
CN104563871A (en) * 2015-01-15 2015-04-29 河南理工大学 Hydraulic punching, dredging and slag discharge integrated device and method
CN110486012A (en) * 2019-07-25 2019-11-22 广西雷公斧重工有限公司 Dust-collecting type splitting machine
CN113847026A (en) * 2020-10-22 2021-12-28 河南理工大学 Coal seam hydraulic punching simulation experiment method

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101532391B (en) * 2009-04-23 2012-11-28 河南理工大学 In-hole drilling tool integrating drilling, slotting and punching coal seam and using method thereof
CN102465712B (en) * 2010-11-15 2015-01-28 湖南汉寿中煤科技有限公司 Drilling-cutting-linked coal layer gas drainage and outburst prevention system and method based on ultra-long drilling and high-pressure water jetting
CN102465712A (en) * 2010-11-15 2012-05-23 湖南汉寿中煤科技有限公司 Drilling-cutting-linked coal layer gas drainage and outburst prevention system and method based on ultra-long drilling and high-pressure water jetting
CN102199991A (en) * 2011-05-05 2011-09-28 河南理工大学 Drilling-fixing integrated device and method for yolk coal terrane
CN102199991B (en) * 2011-05-05 2013-07-03 河南理工大学 Drilling-fixing integrated device and method for yolk coal terrane
CN103104222A (en) * 2013-02-01 2013-05-15 中北大学 Method for pumping and collecting coal bed gas through combination of ground vertical well and long bedding drill hole
CN103104222B (en) * 2013-02-01 2015-07-29 中北大学 Ground peupendicular hole combines extraction coal bed gas method with concordant long drilled holes
CN103470297A (en) * 2013-09-10 2013-12-25 湖南省煤炭科学研究所 Drilling, pumping and discharging integrated coal seam pressure relief and permeability improvement device and using method thereof
CN103470297B (en) * 2013-09-10 2015-11-18 湖南省煤炭科学研究院 One is bored, takes out, is arranged integrated coal seam pressure relief permeability improvement device and using method thereof
CN104563871A (en) * 2015-01-15 2015-04-29 河南理工大学 Hydraulic punching, dredging and slag discharge integrated device and method
CN104563871B (en) * 2015-01-15 2016-09-21 河南理工大学 A kind of hydraulic flushing in hole, desilting and deslagging integrated apparatus and method
CN110486012A (en) * 2019-07-25 2019-11-22 广西雷公斧重工有限公司 Dust-collecting type splitting machine
CN113847026A (en) * 2020-10-22 2021-12-28 河南理工大学 Coal seam hydraulic punching simulation experiment method
CN113847026B (en) * 2020-10-22 2023-05-23 河南理工大学 Coal seam hydraulic punching simulation experiment method

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