CN101985877A - High pressure water jet cutting drum coal dropping double power shearer - Google Patents
High pressure water jet cutting drum coal dropping double power shearer Download PDFInfo
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- CN101985877A CN101985877A CN 201010276039 CN201010276039A CN101985877A CN 101985877 A CN101985877 A CN 101985877A CN 201010276039 CN201010276039 CN 201010276039 CN 201010276039 A CN201010276039 A CN 201010276039A CN 101985877 A CN101985877 A CN 101985877A
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Abstract
The invention relates to a high pressure water jet cutting drum coal dropping double power shearer. The invention is characterized in that the shearer comprises a drum shearer and a high pressure water jet cutting device; wherein the high pressure water jet cutting device is arranged at the front end and rear end of the drum of drum shearer body. The shearer can obviously improve coal dropping block coal yield, greatly reduces coal dust generation rate and reduces hazard of coal dust explosion and harm of dust lung, thus having great economic benefit and social benefit. The shearer can be applicable to coal mine which generally adopts drum shearer.
Description
Technical field
The present invention relates to the coal mining field, particularly relate to remarkable increase lump coal rate, significantly reduce the double dynamical coal-winning machine of high-pressure water jet slot cylinder coal breakage of coal dust.
Background technology
The world's three big basic power sources are from coal, petroleum and natural gas.Coal is the abundantest in the world solid mineral fuel, is distributed in countries in the world, and for example there are a large amount of storages and exploitation in China, North America, Australia, South Africa, Russia, Europe etc.Along with world today's rapid development of science and technology, particularly the coal mining plant equipment enters automatically, the Da Xing Integrated of associating, effective operation closes mining mechanization equipment.At present, mine and mainly adopt the synthetic cover of flitting, drag conveyor and hydraulic support De Integrated coal excavation apparatus in countries in the world, improve coal mining efficient greatly, make coal-mining technique and equipment enter a brand-new high speed development stage, yet flitting relies on the pick Mechanical Crushing to make coal body coal breakage output fine coal and coal dust rate height.The colliery coal dust is that mining work produces more than 80%, mainly is to mine to produce.Mechanical coal mining make the coal dust amount at double, tens times of increases, high yield work plane amplification is big especially, does not take dust prevention, the dust concentration up 14000mg/m of fully-mechanized mining working
3After taking measures such as coal-bed flooding and High Pressure Spray for Dust Suppression at present, dust concentration generally drops to 300-500mg, also exceeds the concentration requirement of China's coal-mine security regulations.At present, the dust concentration in China's coal-mine digging place substantially exceeds regulation 10mg/m
3Coal dust is serious explosive source, is again the pneumoconiosis pathogeny.Coal dust can be blasted separately, also may cause coal-dust explosion (common name gas and dust explosion) by gas explosion, when coal dust and gas coexist as same environment, increase explosion hazard greatly, the coal-dust explosion scale is often much bigger than gas explosion, more serious is that blast is united in the coexistence of coal dust and gas, is the gas and dust explosion that occurs in the nineteen forty-two colliery, lake, China Benxi captured of Japan according to record mine disaster the biggest in the world, dead 1594 people.The old white hole colliery coal-dust explosion of nineteen sixty China Datong District, dead 684 people.In November, 2005 Heilungkiang Qitaihe east wind colliery super-huge coal-dust explosion, dead 171 people, above-mentioned blast causes a tremendous loss of lives and very big economic loss.The pneumoconiosis patients problem that coal dust causes is even more serious, according to incompletely statistics, and to the year ends 2006, China's pneumoconiosis patients is totally 608763 people, annual in recent years newly-increased pneumoconiosis patients surpasses 10,000 people, and colliery pneumoconiosis patients and newly-increased pneumoconiosis patients are about 1/2 of the whole nation, and New Development patient is in rising trend.
Pneumoconiosis makes the colliery constantly lose the experienced operator.The medical expense in general economically each pneumoconiosis patients every year is ten thousand yuan of 3-5, ten thousand yuan of high 7-8.According to expert calculation, the direct economic loss that the whole nation is used for pneumoconiosis patients is 8,000,000,000 yuan, hundred million yuan of indirect economic loss 300-400, and the colliery accounts for 1/2..Pneumoconiosis can't be cured, patient's The Long-term Effect one family, and hundreds thousand of families are injured for a long time.Pneumoconiosis is to people-oriented, and the serious problems of scientific development not only have a strong impact on the healthy sustainable development of coal industry, and are the social concerns that becomes increasingly conspicuous, and have caused extensive concern in the world.
Summary of the invention
The objective of the invention is to overcome above-mentioned prior art intermediate roll coal-winning machine and go out the situation that lump coal is low, the coal dust rate is high, be engaged in the developmental research and the practice in coal and high-pressure water jet field for a long time through the inventor, exploitation provides a kind of lump coal rate that significantly improves out, significantly reduces the double dynamical coal-winning machine of high-pressure water jet slot cylinder coal breakage of coal dust rate.
The double dynamical coal-winning machine of high-pressure water jet slot cylinder coal breakage provided by the invention, it is characterized in that comprising flitting and high-pressure water jet slot device, high-pressure water jet slot device is arranged on flitting body drum front end and rear end, all carry out slot before the cylinder coal breakage or behind the coal breakage, (bar) slot can be cut repeatedly, (bar) slot can be cut repeatedly in cylinder coal breakage front and back end according to flitting drum rotation speed speed.Described flitting mainly comprises component equipments such as cutting units member, haulage gear, motor and electrical system and servicing unit.The cutting units member is the general name of operating mechanism and drive unit thereof, comprises fixedly reduction box, rocking arm and cylinder, is that coal-winning machine is realized coal cutting, broken coal and the member of coalingging; Haulage gear is used for coal-winning machine and moves along work plane, comprises traction drive and haulage gear, and haulage gear is the executing agency of mobile coal-winning machine; Motor is the power section of coal-winning machine, and for coal cutting portion member haulage gear equipment provides power, the power of electric motor size is selected according to the type of flitting, meets the requirement that coal-winning machine is highly efficient and productive, autocontrol performance is good and decides; Servicing unit comprises that a grade coal plate, bottom bracket, cable drag electric installation, water supply atomizing de-dusting cooling unit and device such as heighten, transfer tiltedly.Described high-pressure water jet slot device comprises motor, high-pressure hydraulic pump, high-pressure water hose and nozzle and water under high pressure rotating seal, wherein motor is connected with high-pressure hydraulic pump, it is the power source of high-pressure hydraulic pump, the high-pressure hydraulic pump port of export is connected with the water under high pressure rotating seal, the water under high pressure rotating seal is connected with nozzle by high-pressure water hose, because the water under high pressure rotating seal can make nozzle carry out the coal seam slot in comprehensive space in the rotation of comprehensive 360 ° of spaces.
According to the invention provides in the double dynamical coal-winning machine of high-pressure water jet slot cylinder coal breakage, described flitting is the common coal-winning machine that adopts of present countries in the world mechanical coal mining, drum shearer has the flitting of all kinds and various models, be suitable for different coal geological conditions and production technology process situation and each distributed coal beds and thickness degree and the degree of depth and mining machines degree and wait and select flitting, single ended shearer and double-ended shearer etc. are arranged.Single cylinder (single rocking arm) coal-winning machine fuselage is shorter, and weight is lighter, but the otch poor-performing suits to use in high-grade conventional mining and thinner seam work plane.It is big that twin-roll (two rocking arm) coal-winning machine is heightened scope, and the production efficiency height is applied widely.At present there is the drum shearer of commercially available various models countries in the world, particularly automatically, the Da Xing Integrated of associating, effective operation closes mining mechanization equipment.The flitting excursion is very big, and the minimum mining height of flitting mining height is 0.5-0.9m, is up to 5-6m, even higher; The flitting diameter of cylinder has all size for example to change or the like in 500 to the 2300mm scopes.The flitting of above-mentioned related all kinds and model all can be commercially available or be ordered gained, and for example Jixi Coal Mine Machinery Factory produces and sells.
The geological conditions that described high-pressure water jet slot device (Fig. 2) is produced according to the coal seam waits to be selected, to adopt 1000-4000kg/C m
2Pressure is example, and high-pressure hydraulic pump volume length * wide * height is 1.75 meters * 0.75 meter * 0.6 meter, and motor is a three phase electric machine, and power is 150-300KW.High-pressure water jet slot device is installed in the body front-end and back-end of flitting.As adopt double-ended shearer, and in the front-end and back-end of two cylinders of double-ended shearer body a high-pressure water jet slot device is set respectively, before the cylinder coal breakage, all carry out slot behind the machine coal breakage, promptly cut repeatedly (bar) slot (Fig. 1); If single ended shearer, at the front end of a cylinder of single ended shearer body a high-pressure water jet slot device is set, before the cylinder coal breakage, cut once seam.The slot width is 2.5-10mm, and the degree of depth is greater than the cylinder degree of depth, and can comprehensively take various slots to arrange (as figure, 1,3,4) etc., need and flitting is decided at subterranean coal tunnel coal-face, space and flitting type and traction track by the coal mining production technology.
At present commercially available automatically, the Da Xing Integrated of associating, effective operation closes mechanical coal mining equipment and comprises that coal-winning machine, hydraulic support and drag conveyor etc. are unified into covering device.
The double dynamical coal-winning machine characteristics of high-pressure water jet slot cylinder coal breakage provided by the invention are:
1, high-pressure water jet slot device is arranged on the drum front end and the rear end of flitting body, need not to change the layout of whole flitting, high-pressure water jet slot device only is set in the cylinder front and back end, its used water under high pressure can use the spray water system of flitting, the extension set small investment, cost is low, and high efficiency has distinct economic and social benefit.
2, still can give full play to the little advantage of high production, high efficiency, safety, low consumption and labour intensity of various flittings, and raising output lump coal rate, reduce coal-face coal dust concentration, the coal seam slot that before the cylinder coal breakage, will be exploited by high-pressure water jet slot device, make the coal seam be the slot state, soaked (slot place water equals to soak earlier) by water under high pressure by working seam, equal to give earlier by the mining coal seam water filling, obviously improve the output lump coal rate, reduction work dusty complexion coal output capacity lands vertically to the safety index 10mg/m of national standard
3,, significantly reduce the danger that the dirt coal explodes, improve the ambient conditions of coal-face, useful coal miner is healthy, has distinct economic and social benefit.
3, applicability is strong, adopts in the colliery of flitting applicable to present each colliery
Description of drawings
Fig. 1 is the double dynamical coal-winning machine structural representation of high-pressure water jet slot cylinder coal breakage:
Illustrate 1. double-ended shearers, 2. cylinder, 3. high-pressure water jet slot device, 4. slot, 5. tunnel, 6. coal face coal, 7. goaf.
Fig. 2 is a high-pressure water jet slot apparatus structure schematic diagram
Illustrate: 8. motor, 9. high-pressure hydraulic pump, 10. water under high pressure rotating seal, 11. high-pressure water hoses, 12. nozzles.
Fig. 3,4 is high-pressure water jet slot layout schematic diagram
Illustrate: 13. top boards, 14. base plates, 4. slot.
The specific embodiment:
The present invention illustrates further the present invention in conjunction with the accompanying drawings with the following example, but protection domain of the present invention is not limited to down the following example
Embodiment 1
The double dynamical coal-winning machine of high-pressure water jet slot cylinder coal breakage provided by the invention comprises MG2X300-W double-ended shearer 1 (Jixi Coal Mine Machinery Factory's production and sales), its each part parameter is: machine height 1600mm, limit of mining 2.0～3.7m, inclination angle≤35 ℃, Polodyakonov coefficient≤3f, tractive force 400KN, main oil pump working flow 275L divides and operating pressure 16MPa; Hydraulic motor nominal torque 1300 and working speed 88.26r/ branch; Cutting mechanism: diameter of cylinder 1600-2000mm, cut dark 630mm, maximum cut torque 83000 (N, M), rocking arm centre of gyration square 6200mm, drum rotation speed 25～45.6 (r/ branch), the planted agent measures 135～335 (mm); Necessary electromotor: power 2 * 300KW, voltage 1140V, rotating speed 1472r/ branch; Cable ucPQ3 * 70+1 * 16+3 * 6; If interior external spraying, 44 tons of its amounts, high-pressure water jet slot device 3 comprises that high-pressure hydraulic pump 9 is 1400kg/c m
2Volume: length * wide * height=1.75 * 0.75 * 0.6m, motor 8 is a three phase electric machine: power 1500KW links to each other with high-pressure hydraulic pump, be the high-pressure hydraulic pump power source, water under high pressure rotating seal 10, high-pressure water pipe 11 and nozzle 12 (slot nozzle) are supporting commercially available prod (Fig. 2), two water jet slot devices are installed in the front-end and back-end (Fig. 1) of double-ended shearer front and back two cylinders respectively, each slot repeatedly before coal breakage and behind the coal breakage, can be comprehensive according to the coal mining requirement as arbitrary form among Fig. 1 or other slot patterns, dark 0.65 meter of slot, the slot width is 10mm, slot is arranged as shown in fig. 1.
Claims (3)
1. the double dynamical coal-winning machine of high-pressure water jet slot cylinder coal breakage is characterized in that comprising flitting and high-pressure water jet slot device, and high-pressure water jet slot device is arranged on flitting body drum front end and rear end.
2. according to the double dynamical coal-winning machine of high-pressure water jet slot cylinder coal breakage of claim 1, it is characterized in that described flitting mainly comprises cutting units member, haulage gear, motor and electrical system and servicing unit, described cutting units member comprises fixedly reduction box, rocking arm and cylinder; Described haulage gear comprises traction drive and tractor member; Described servicing unit comprises retaining coal version, bottom bracket, cable towing gear, water supply atomizing de-dusting cooling unit and height-inclination adjustable device.
3. according to the double dynamical coal-winning machine of high-pressure water jet slot cylinder coal breakage of claim 1, it is characterized in that described high-pressure water jet slot device comprises motor, high-pressure hydraulic pump, high-pressure water hose and nozzle and water under high pressure rotating seal, wherein motor is connected with high-pressure hydraulic pump, the high-pressure hydraulic pump port of export is connected with the water under high pressure rotating seal, the water under high pressure rotating seal is connected with nozzle by high-pressure water hose, constitutes high-pressure water jet slot device.
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| CN 201010276039 CN101985877A (en) | 2010-09-09 | 2010-09-09 | High pressure water jet cutting drum coal dropping double power shearer |
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| CN 201010276039 CN101985877A (en) | 2010-09-09 | 2010-09-09 | High pressure water jet cutting drum coal dropping double power shearer |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797464A (en) * | 2012-08-13 | 2012-11-28 | 大同煤矿集团有限责任公司 | Mining method for deterioration coal under intrusion of igneous rock |
| CN103089256A (en) * | 2011-11-07 | 2013-05-08 | 刘素华 | Water cutting falling coal mining method and water cutting falling coal mining machine |
| CN103089257A (en) * | 2011-11-07 | 2013-05-08 | 刘素华 | Water jet mining machine |
| CN103216226A (en) * | 2012-01-21 | 2013-07-24 | 刘素华 | Water-jet cutting and impacting mining machine |
| CN106437704A (en) * | 2016-12-01 | 2017-02-22 | 黑龙江科技大学 | Coal rock cutting method and novel cutting pick |
| CN110195586A (en) * | 2019-06-04 | 2019-09-03 | 中国矿业大学 | A kind of device and method improving coalcutter working seam thickness using abradant jet |
| CN112879073A (en) * | 2021-03-22 | 2021-06-01 | 北京天地玛珂电液控制系统有限公司 | Water injection method for underground coal mining coal seam or rock stratum |
| CN114352275A (en) * | 2021-12-06 | 2022-04-15 | 北京天玛智控科技股份有限公司 | Underground coal mining method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089256A (en) * | 2011-11-07 | 2013-05-08 | 刘素华 | Water cutting falling coal mining method and water cutting falling coal mining machine |
| CN103089257A (en) * | 2011-11-07 | 2013-05-08 | 刘素华 | Water jet mining machine |
| CN103216226A (en) * | 2012-01-21 | 2013-07-24 | 刘素华 | Water-jet cutting and impacting mining machine |
| CN102797464A (en) * | 2012-08-13 | 2012-11-28 | 大同煤矿集团有限责任公司 | Mining method for deterioration coal under intrusion of igneous rock |
| CN106437704A (en) * | 2016-12-01 | 2017-02-22 | 黑龙江科技大学 | Coal rock cutting method and novel cutting pick |
| CN106437704B (en) * | 2016-12-01 | 2018-12-07 | 黑龙江科技大学 | A kind of coal petrography cutting process and Novel cutting tooth |
| CN110195586A (en) * | 2019-06-04 | 2019-09-03 | 中国矿业大学 | A kind of device and method improving coalcutter working seam thickness using abradant jet |
| CN112879073A (en) * | 2021-03-22 | 2021-06-01 | 北京天地玛珂电液控制系统有限公司 | Water injection method for underground coal mining coal seam or rock stratum |
| CN112879073B (en) * | 2021-03-22 | 2024-01-26 | 北京天玛智控科技股份有限公司 | Water injection method for exploiting coal seam or rock stratum in underground coal mine |
| CN114352275A (en) * | 2021-12-06 | 2022-04-15 | 北京天玛智控科技股份有限公司 | Underground coal mining method |
| CN114352275B (en) * | 2021-12-06 | 2024-04-09 | 北京天玛智控科技股份有限公司 | Underground coal mining method |
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Application publication date: 20110316 |