CN1261126A - Efficient dusting system carried by coal-mining machine by means of high-voltage charging and mist spray - Google Patents
Efficient dusting system carried by coal-mining machine by means of high-voltage charging and mist spray Download PDFInfo
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- CN1261126A CN1261126A CN 99112027 CN99112027A CN1261126A CN 1261126 A CN1261126 A CN 1261126A CN 99112027 CN99112027 CN 99112027 CN 99112027 A CN99112027 A CN 99112027A CN 1261126 A CN1261126 A CN 1261126A
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Abstract
An efficient dusting system carried by coal mining machine for fully mechanized mining face features use of high-voltage charging and mist spray, and is composed of high-pressure pump, overflow valve assembly, coupling drive part, hydraulic control valve group, upper and lower wind flow dividing arms, high-voltage charging nozzle installed to said dividing arms, and built-in high-pressure water source. Its advantages are high atomizing and dusting effect, and not blocking nozzles easily.
Description
The present invention relates to coal winning technology, particularly the efficient dusting system carried by coal-mining machine by means of high-voltage charging and mist spray used of a kind of coal-winning machine external spraying of fully-mechanized mining working.
Dust concentration during the coal-winning machine coal cutting of fully-mechanized mining working can reach 3000～6000mg/m
3, the coal dust control of its generation is the big technical barrier in the work of China's coal-mine dust prevention and control always.
At present, China's coal-mine coal-winning machine dust-settling technology is mostly based on inside and outside spraying, and for various reasons, nozzle is easily stifled can't normally to be used.Practice at home and abroad proves, high-pressure fog is a kind of very effective dust-settling technology, but there are many problems in the airborne High Pressure Spray for Dust Suppression system of domestic coal-winning machine, mainly be: 1. do not solve airborne high-pressure water problem, the present high-pressure water overwhelming majority is by the high-pressure pump that is installed in the crossheading, is transported to coal-winning machine by high-pressure rubber pipe from cable clamp, along with the back production of coal-winning machine drags, rub mutually with cable clamp and cable wherein on the one hand, cable clamp is damaged; On the other hand high-pressure rubber pipe drag back and forth and the bending curvature radius little, fragile high-pressure rubber pipe.Because hydraulic pressure height, damaged high-pressure rubber pipe leak spray and threaten personal safety.2. the outer spray of high pressure system design is huge, and injection field and high-pressure nozzle design are unreasonable, and nozzle is easily stifled, and water consumption is big, and atomizing effect and dust-laying effect are not good, and spraying system is operate as normal etc. for a long time.
The objective of the invention is to overcome the weak point in the prior art, and provide a kind of atomizing de-dusting that makes airborne with the realization of water under high pressure feedway, and the effective efficient dusting system carried by coal-mining machine by means of high-voltage charging and mist spray of atomizing de-dusting.
Purpose of design of the present invention can reach by following measure:
Efficient dusting system carried by coal-mining machine by means of high-voltage charging and mist spray comprises the spill valve 12 of airborne high-pressure pump 14, pump 14, shaft coupling drive disk assembly, the hydraulic control valve group 15 of pump 14 and the upper and lower distinguished and admirable shunting arm 22 and 3 that shower nozzle is housed.The output shaft 24 of coal-winning machine motor is through the power shaft driving coupling of shaft coupling drive disk assembly and airborne high-pressure pump 14, the shaft coupling drive disk assembly of airborne high-pressure pump 14, pump 14 and the spill valve 12 of pump 14 are loaded in the coal-winning machine intermediate box 13, and the hydraulic control valve group 15 of pump 14 is loaded on intermediate box 13 outer, operation driver one sides.Upper and lower distinguished and admirable shunting arm 22,3 is loaded on the coal-winning machine right side, termination, left two ends respectively, on the upper and lower distinguished and admirable shunting arm 22 and 3 the shower nozzle of adorning 23 for having the high-voltage charging electric injector of two-layer screen pack, shower nozzle 23 is connected with the delivery port 25 of airborne high-pressure pump through high-pressure hose 16.
Purpose of design of the present invention can also reach by following measure:
Its airborne high-pressure pump 14 is horizontal plunger displacement pumps, its shaft coupling drive disk assembly is clutch/shaft coupling 9 and gearbox 11, horizontal plunger displacement pump and gearbox 11 are loaded on upper saddle 27, and lower slider 28 is fixed in the bottom surface in the intermediate box 13, and upper and lower slide 27,28 setting-ins together and be slidingly matched.
The control far away of the control pilot valve 37 far away of overflow valve mouthful K ' in its hydraulic control valve group 15 is connected by the road with the control mouth K far away of overflow valve 12 and controls.When inlet gage 8 shown hydraulic pressure are lower than setting, for example during hydraulic pressure≤1MPa, the contact of pressure switch 7 will be in normally open, the fail to start of coal-winning machine motor, and airborne high-pressure pump 14 can not be worked.
On its upper and lower distinguished and admirable shunting arm 22 and 3 the shower nozzle installing rack 30 and 36 nozzle boss 32 is housed, shower nozzle 23 is housed on the nozzle boss 32, the injection direction of shower nozzle 23 is adjustable at any time at three-dimensional: promptly shower nozzle 23 is fastening and can regulate direction around the axis of this bolt by horizontal tight fixed bolt on nozzle boss 32, nozzle boss 32 is contained on the shower nozzle installing rack 30,36, is fastened admittedly by vertical clamp screw and also can regulate direction around the axis of this bolt.The arm seat of windward diverting flow arm 22 is connected by swivel pin 29 with winning machine cutting part 19 terminations, so that shower nozzle installing rack 30 swings up and down leeway.Be provided with waste rock board 31 in the bottom surface of this arm 22, the place ahead of each shower nozzle 33.
Its upper and lower distinguished and admirable shunting arm 22 and 3 shower nozzle 23, being contained on the end face of shower nozzle installing rack 30 and 36 is the main injection shower nozzle 34 and 35 that plays distinguished and admirable ejector action, being contained on its bottom surface is atomizing, the strong mist curtain shower nozzle 33 of charged effect.
So-called injection shower nozzle is meant porous large size shower nozzle 35 and the medium size single hole shower nozzle 34 of aperture 〉=Φ 1mm, and its injection direction is flow path direction and tilt 60～90 ° to rib with the wind, far firing range, and it is big to produce negative pressure, mainly plays distinguished and admirable ejector action.
So-called mist curtain shower nozzle is meant the small size single hole shower nozzle of aperture≤Φ 0.8mm, and its injection direction tilts 10～20 ° downwards and to rib, and two or more are installed.Its atomizing of small-bore shower nozzle, charged effect are strong, and several small size single hole shower nozzles 33 can form the mist curtain together.
Compared with the prior art the present invention has following advantage:
1. adopt the coal-winning machine motor output shaft, and drive airborne high-pressure pump by transmission clutch, gearbox etc., high-pressure water is provided, solved at crossheading and installed high-pressure pump, long distance is carried the drawback of water under high pressure.
2. adopt efficiently depositing dust of high-voltage charging electric injector.High-pressure fog has multiple depositing dust mechanism such as inertia is condensed, static condenses, eddy current condenses, and is particularly outstanding to respirable dust.
3. adopt through high-pressure nozzle particular design, that double-filtration is arranged, solved the spray nozzle clogging problem of present most critical substantially.
4. adopt advanced seizure and the distinguished and admirable ejection system of dust-laden, can control effectively that dust-laden is distinguished and admirable to make it to driver and sidewalk diffusion, efficient depositing dust is the ideal arrangement mode of coal miner spray system again.
The drawing of accompanying drawing is described as follows:
Fig. 1: the schematic diagram front view of each ingredient of the present invention
Fig. 2: airborne high-pressure pump, clutch/shaft coupling, gearbox be the installation site schematic diagram in intermediate box
Fig. 3: the schematic diagram of windward diverting flow arm
Fig. 4: the schematic diagram of leeward diverting flow arm
Fig. 5: the hydraulic scheme of high-pressure pump
Fig. 6: the structural representation of hydraulic control valve group
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail:
Present embodiment is with AM500 type coal-winning machine, and it is example that airborne high-pressure pump 14 adopts the Wuxi to produce TQB80/12.5 type horizontal triplex plunger pump.
Fig. 1: show coal-winning machine and each ingredient of the present invention.Coal-winning machine mainly partly is made up of roll left tube 1, left rocking arm 2, left cutting units 4, left motor 6, intermediate box 13, right motor 17, pump box 18, right cutting units 19, right rocking arm 20, right cylinder 21 etc.Efficient dusting system carried by coal-mining machine by means of high-voltage charging and mist spray of the present invention is by spill valve 12, hydraulic control valve group 15, high-pressure hose 16, the upper and lower distinguished and admirable shunting arm 22 and 3 of airborne high-pressure pump 14, clutch/shaft coupling 9, gearbox 11, airborne high-pressure pump 14, with and on compositions such as high-pressure nozzle 23.
Airborne high-pressure pump 14, clutch/shaft coupling 9, gearbox 11 are loaded in the intermediate box 13, and by left motor 6 drivings of coal-winning machine double output shaft, the right output shaft 24 of left motor 6 is through clutch/shaft coupling 9, gearbox 11, with the power shaft driving coupling of airborne high-pressure pump 14.The clutch of power can be controlled and drive to clutch/shaft coupling 9, simultaneously to 14 overload protective functions of pump for clutch, the shaft coupling of band shear pin.
The parts of airborne high-pressure pump hydraulic protecting system comprise the spill valve 12 in the intermediate box 13, and intermediate box 13 is outer inlet gage 8, pressure switch 7, discharge pressure table 36, safety valve 39 etc.Its composition sees Fig. 5 for details.
Hydraulic control valve group 15 is loaded on intermediate box 13 outer walls, coal-winning machine driver one side, and its structure sees Fig. 6 for details.
The water under high pressure O of the output of airborne high-pressure pump 14
WBe connected to the shower nozzle 23 that is installed in upper and lower distinguished and admirable shunting arm 22 and 3, atomizing de-dusting through high-pressure hose 16.Upper and lower distinguished and admirable shunting arm 22 and 3 is contained in the right side, left cutting units 19 of coal-winning machine and 4 termination respectively.The water inlet I of airborne high-pressure pump 14
WProvide low-pressure water by crossheading.Water inlet I
WHydraulic pressure is by inlet gage 8 demonstrations, pressure switch 7 control protections.
The cooling water of airborne high-pressure pump 14 draws the cooling water of discharging from the coal-winning machine motor, with I
CThe flow direction enters the cooling tube of the crankcase of pump 14, with O
CFlow to and discharge, and by stop valve 10 control start-stops.
Also be provided with down distinguished and admirable rocking arm shower nozzle 5 on the left rocking arm 2 of coal-winning machine, to strengthen the atomizing de-dusting effect.
F is a wind direction, and the coal flow path direction is consistent with wind direction.
Fig. 2: further show the position on the vertical direction in intermediate box 13 such as airborne high-pressure pump 14, clutch/shaft coupling 9, gearbox 11, and the right output shaft 24 of coal-winning machine left side motor 6 is through clutch/shaft coupling 9, gearbox 11, with the structure of the power shaft driving coupling of airborne high-pressure pump 14.On upper saddle 27 connects with airborne high-pressure pump 14, lower slider 28 is fixed at the bottom of the intermediate box 13 casees.Upper and lower slide 27,28 is inlaid in together and is slidingly matched, so that I﹠ M.
The delivery port 25 of airborne high-pressure pump 14 is connected with shower nozzle 23 through high-pressure hose 16; The water inlet 26 of airborne high-pressure pump 14 and common water supply I from crossheading
WConnect.
Fig. 3: the structure that shows windward diverting flow arm 22.It comprises shower nozzle installing rack 30 and a plurality of shower nozzles on it.Shower nozzle installing rack 30 is welded by arm and arm seat, and gusset is strengthened the connection of the two, and hinge joint pin 29 is connected to arm seat the termination of winning machine cutting part 19.Adopt the connection of swivel pin 29 can make shower nozzle installing rack 30 that certain up and down leeway is arranged, in case the bulk spoil top of being come by suitable coal flow path direction is bad.
On the shower nozzle installing rack 30 of windward diverting flow arm 22 nozzle boss 32 is housed, shower nozzle 23 is housed on the nozzle boss 32, the injection direction of shower nozzle 23 is adjustable at any time at three-dimensional: promptly shower nozzle 23 is fastening and can regulate direction, adjustable 180 ° in vertical direction around the axis of this bolt by horizontal tight fixed bolt on nozzle boss 32; Nozzle boss 32 is contained on the shower nozzle installing rack 30,36, is fastened admittedly by vertical clamp screw and also can regulate direction around the axis of this bolt; Adjustable in the horizontal direction 180 °, adjust the back by bolt tightening.
The shower nozzle of installing above shower nozzle installing rack 30 is the large size porous nozzle 35 of two aperture Φ 1mm and the medium size single hole shower nozzle 34 of an aperture Φ 1mm, its injection direction is to flow with the wind and tilt 60～90 ° to rib substantially, their far firing ranges, the generation negative pressure is big, a main distinguished and admirable ejector action is penetrated shower nozzle so cite approvingly.The shower nozzle that install shower nozzle installing rack 30 belows is the small size single hole shower nozzle 33 of four aperture Φ 0.8mm, its injection direction is to be tilted to down substantially, and tilts 10～20 ° to rib, and small size single hole shower nozzle atomizes, charged effect is strong, several shower nozzles can form the mist curtain together, so claim mist curtain shower nozzle.
Above-mentioned shower nozzle all adopts the high-voltage charging electric injector, and this shower nozzle is through particular design, nozzle spray chargeability height, and atomizing de-dusting is effective; Nozzle housing stainless steel manufacturing, wall thickness is big, and the intensity height includes two-layer screen pack, can solve the spray nozzle clogging problem substantially; Nozzle core can be changed.Large size porous injection shower nozzle 35, medium size single hole shower nozzle 34 apertures are 〉=Φ 1mm that small size single hole shower nozzle 33 apertures are≤Φ 0.8mm.
Flow the place ahead at the bottom surface of shower nozzle installing rack 30, the coal of meeting of each small size shower nozzle 33, the riser that respectively is welded with a band reinforcement gusset claims waste rock board 31, in case bottom surface shower nozzle 33 is broken by the bulk spoil.
For ease of watching, among the figure, the one side of the band nozzle of the injection shower nozzle direction of having reversed.
Fig. 4: the structure that shows leeward diverting flow arm 3.Its structure and windward diverting flow arm 22 are basic identical, also are to be made of shower nozzle installing rack 36 and the shower nozzle on it.Shower nozzle installing rack 36 is welded by arm seat, arm, gusset, but its arm is short, and nozzle boss 32 is few with the shower nozzle number, and no waste rock board 31 on the arm, its arm seat are with on the fastening termination that is connected to the left cutting units 4 of coal-winning machine of bolt 37.Herein, the injection shower nozzle is with two porous nozzles 35, a medium size single hole shower nozzle 34, and mist curtain shower nozzle is with two small size shower nozzles 33.
Fig. 5: the composition and the flow process that show the hydraulic system of high-pressure pump.
Total water inlet of 1. airborne high-pressure pump 14 is by I
WFlow to input, after pump 14 boosts, be divided into three the tunnel, the one tunnel with O
WFlowing to output uses for spraying; one tunnel overflow valve 12 through the band throttle orifice flows back to total water inlet input; be used for the Adjustment System flow with steady pressure; another road access valve 38, pressure meter 36, safety valve 39, the three is respectively applied for the unloading emptying, observes output pressure, the protection system pressure nonoverload of pump.Draw a control liquid pipeline from the control far away mouthful K of overflow valve 12 and link to each other, the adjusting of system pressure can be realized by adjustment pilot valve 37 with the control far away mouthful K ' of pilot valve 37.
2. at total water inlet I of pump 14
WInput is also drawn one the tunnel and is connect pressure meter 8 and pressure switch 7, and the two is respectively applied for and observes intake pressure, coal-winning machine could be started shooting under the regulation intake pressure.
3. the cooling water of pump 14 is quoted the cooling water of coal-winning machine motor discharge with I
CThe flow direction enters the cooling tube of airborne high-pressure pump 14 crankcases, with O
CFlow to and discharge, and by stop valve 10 control start-stops.
4. the control far away of the control pilot valve 37 far away of overflow valve 12 mouthful K ' in the hydraulic control valve group 15 is connected by the road with the control mouth K far away of overflow valve 12 and controls.When the shown hydraulic pressure of inlet gage 8≤1MPa, the contact of pressure switch 7 will be in normally open, the fail to start of coal-winning machine motor, and airborne high-pressure pump 14 can not be worked.
All the other are among the figure: cooling water high-pressure hose 40, water inlet high-pressure hose 41, water outlet high-pressure hose 42.
Fig. 6: the structure that shows hydraulic control valve group 15.Hydraulic control valve group 15 is the control pilot valves 37 far away by safety valve 39, ball valve 38, pressure meter 36, overflow valve, is assemblied on the valve body 44 to constitute, and valve body 44 is anchored on the upper cover plate of intermediate box 13 by bolt 43, coal-winning machine driver one side.
Processing and type selecting: intermediate box 13 adopts extended type, and than former intermediate box lengthening 500mm, the coal-winning machine bottom bracket is also wanted corresponding lengthening.Airborne high-pressure pump 14 adopts the Wuxi to produce TQB80/12.5 type horizontal triplex plunger pump, clarified water pump, the special-purpose clutch/shaft coupling 9 of this pump band, gearbox 11.Control overflow valve 12:YK-WYF160/50 type far away, pressure meter 8,36:YN60-II type, ball valve 10,38:QJ10 (G) type, safety valve 39:WJF0101 type, pressure switch 7:HED1 type.High- pressure hose 16,41,42,40: adopt the KJR type.
The shower nozzle installing rack 30 and 36 of upper and lower distinguished and admirable shunting arm 22,3 is with i iron, steel plate rivet welding; Its high-voltage charging electric injector is the product of Chongqing Branch, Coal Science Research General Inst.
Claims (5)
1. an efficient dusting system carried by coal-mining machine by means of high-voltage charging and mist spray that is used for fully-mechanized mining working is characterized in that it comprises the spill valve (12) of airborne high-pressure pump (14), pump (14), shaft coupling drive disk assembly, the hydraulic control valve group (15) of pump (14) and the upper and lower distinguished and admirable shunting arm (22,3) that shower nozzle is housed; The output shaft of coal-winning machine motor (24) is through the power shaft driving coupling of shaft coupling drive disk assembly and airborne high-pressure pump (14), airborne high-pressure pump (14), the spill valve (12) of the shaft coupling drive disk assembly of pump (14) and pump (14) is loaded in the coal-winning machine intermediate box (13), the hydraulic control valve group (15) of pump (14) is loaded on outside the intermediate box (10), operation driver one side, on, leeward diverting flow arm (22,3) be loaded on the coal-winning machine right side respectively, termination, two ends, a left side, on, leeward diverting flow arm (22,3) shower nozzle on (23) is the high-voltage charging electric injector that two-layer screen pack is arranged, and shower nozzle (23) is connected with the delivery port (25) of airborne high-pressure pump through high-pressure hose (16).
2. efficient dusting system carried by coal-mining machine by means of high-voltage charging and mist spray according to claim 1, it is characterized in that said airborne high-pressure pump (14) is horizontal plunger displacement pump, its shaft coupling drive disk assembly is clutch/shaft coupling (9) and gearbox (11), horizontal plunger displacement pump and gearbox (11) are loaded on upper saddle (27), lower slider (28) is fixed in the bottom surface in the intermediate box (13), and upper and lower slide (27,28) is inlaid in together and is slidingly matched.
3. efficient dusting system carried by coal-mining machine by means of high-voltage charging and mist spray according to claim 1, it is characterized in that said hydraulic control valve group (15), the control far away mouthful (K ') of the control pilot valve far away (37) of its spill valve (12) is connected by the road with the control far away mouthful (K) of spill valve (12), when the hydraulic pressure of inlet gage (8) demonstration is lower than setting, the contact of pressure switch (7) will be in normally open, the fail to start of coal-winning machine motor, airborne high-pressure pump (14) can not be worked.
4. efficient dusting system carried by coal-mining machine by means of high-voltage charging and mist spray according to claim 1, it is characterized in that said on, leeward diverting flow arm (22,3), its shower nozzle installing rack (30, nozzle boss (32) is housed 36), shower nozzle (23) is housed on the nozzle boss (32), the injection direction of shower nozzle (23) is adjustable at any time at three-dimensional: promptly shower nozzle (23) is gone up fastening and can regulate direction around the axis of this bolt by horizontal tight fixed bolt at nozzle boss (32), nozzle boss (32) is contained in shower nozzle installing rack (30,36) on, fastening and can regulate direction around the axis of this bolt by the vertical fixing nut; The arm seat of windward diverting flow arm (22) is connected by swivel pin (29) with winning machine cutting part (19) termination, so that shower nozzle installing rack (30) swings up and down leeway; Be provided with waste rock board (31) in the bottom surface of this arm (22), the place ahead of each shower nozzle (33).
5. efficient dusting system carried by coal-mining machine by means of high-voltage charging and mist spray according to claim 3, the shower nozzle (23) that it is characterized in that said upper and lower distinguished and admirable shunting arm (22,3), what be contained in shower nozzle installing rack (30,36) end face is injection shower nozzle (34 and 35): the porous large size shower nozzle of aperture 〉=Φ 1mm and medium size single hole shower nozzle, its injection direction be flow path direction and tilt 60～90 ° to rib with the wind; What be contained in its bottom surface is mist curtain shower nozzle (33): the small size single hole shower nozzle of aperture≤Φ 0.8mm, its injection direction tilts 10～20 ° downwards and to rib, is at least two.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99112027 CN1261126A (en) | 1999-01-20 | 1999-01-20 | Efficient dusting system carried by coal-mining machine by means of high-voltage charging and mist spray |
| AU12506/00A AU745079B2 (en) | 1999-01-20 | 2000-01-20 | Water spraying dust suppression system for shearer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99112027 CN1261126A (en) | 1999-01-20 | 1999-01-20 | Efficient dusting system carried by coal-mining machine by means of high-voltage charging and mist spray |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1261126A true CN1261126A (en) | 2000-07-26 |
Family
ID=5275371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99112027 Pending CN1261126A (en) | 1999-01-20 | 1999-01-20 | Efficient dusting system carried by coal-mining machine by means of high-voltage charging and mist spray |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1261126A (en) |
| AU (1) | AU745079B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102494117A (en) * | 2011-12-26 | 2012-06-13 | 无锡汇虹机械制造有限公司 | Internal cooler device for gear transmission cavity on cutting part of coal-mining machine |
| CN102797425A (en) * | 2012-08-27 | 2012-11-28 | 王清刚 | Wind-water linked atomized dust removing and cleaning device for coal bed drilling exploration |
| CN103221637A (en) * | 2011-03-23 | 2013-07-24 | 桑德威克采矿和建筑有限责任公司 | Device for cooling chisels |
| US8590982B2 (en) | 2009-07-10 | 2013-11-26 | Joy Mm Delaware, Inc. | Longwall mining roof supports |
| CN105626134A (en) * | 2016-03-04 | 2016-06-01 | 山东科技大学 | Local area closed dust prevention and control method for fully mechanized coal mining working faces |
| CN110559770A (en) * | 2019-09-27 | 2019-12-13 | 许紫银 | Supporting high pressure spray case based on coal mining equipment |
| CN115506734A (en) * | 2022-10-24 | 2022-12-23 | 中煤科工集团重庆研究院有限公司 | Bedding drilling charge synergistic multistage filtering dust removal device and method |
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| CN107524415B (en) * | 2016-11-21 | 2024-01-19 | 河南大有能源股份有限公司新安煤矿 | Coal seam drilling dust collector and rig |
| CN110107341B (en) * | 2019-06-05 | 2024-02-20 | 陈业武 | Mine underground fully-mechanized coal mining face moving frame coal-falling fog gun dust-settling device |
| CN112777338A (en) * | 2019-11-11 | 2021-05-11 | 天津港第四港埠有限公司 | Spraying dust suppression device for funnel, control method of spraying dust suppression device and funnel |
| CN113202538A (en) * | 2021-04-27 | 2021-08-03 | 刘勤富 | Dust collector for coal mine with compact structure |
| CN118148631B (en) * | 2024-05-09 | 2024-07-12 | 山西潞安环保能源开发股份有限公司 | Spark-free cutting system for coal mining machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5507565A (en) * | 1994-12-19 | 1996-04-16 | Eimco Coal Machinery, Inc. | Method and apparatus for suppressing dust and frictional ignition on a continuous mining machine |
-
1999
- 1999-01-20 CN CN 99112027 patent/CN1261126A/en active Pending
-
2000
- 2000-01-20 AU AU12506/00A patent/AU745079B2/en not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8590982B2 (en) | 2009-07-10 | 2013-11-26 | Joy Mm Delaware, Inc. | Longwall mining roof supports |
| US9670777B2 (en) | 2009-07-10 | 2017-06-06 | Joy Mm Delaware, Inc. | Longwall mining roof supports |
| CN103221637B (en) * | 2011-03-23 | 2015-11-25 | 桑德威克采矿和建筑有限责任公司 | For cooling the device of chisel |
| CN103221637A (en) * | 2011-03-23 | 2013-07-24 | 桑德威克采矿和建筑有限责任公司 | Device for cooling chisels |
| CN102494117B (en) * | 2011-12-26 | 2014-05-21 | 无锡巨通矿山机械有限公司 | Internal cooler device for gear transmission cavity on cutting part of coal-mining machine |
| CN102494117A (en) * | 2011-12-26 | 2012-06-13 | 无锡汇虹机械制造有限公司 | Internal cooler device for gear transmission cavity on cutting part of coal-mining machine |
| CN102797425B (en) * | 2012-08-27 | 2014-12-10 | 王清刚 | Wind-water linked atomized dust removing and cleaning device for coal bed drilling exploration |
| CN102797425A (en) * | 2012-08-27 | 2012-11-28 | 王清刚 | Wind-water linked atomized dust removing and cleaning device for coal bed drilling exploration |
| CN105626134A (en) * | 2016-03-04 | 2016-06-01 | 山东科技大学 | Local area closed dust prevention and control method for fully mechanized coal mining working faces |
| CN105626134B (en) * | 2016-03-04 | 2018-06-05 | 山东科技大学 | A kind of closed dust prevention and control method of regional area for fully-mechanized mining working |
| CN110559770A (en) * | 2019-09-27 | 2019-12-13 | 许紫银 | Supporting high pressure spray case based on coal mining equipment |
| CN110559770B (en) * | 2019-09-27 | 2020-09-11 | 六安皖智知识产权运营有限公司 | Supporting high pressure spray case based on coal mining equipment |
| CN115506734A (en) * | 2022-10-24 | 2022-12-23 | 中煤科工集团重庆研究院有限公司 | Bedding drilling charge synergistic multistage filtering dust removal device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| AU745079B2 (en) | 2002-03-14 |
| AU1250600A (en) | 2000-08-17 |
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