CN101899976A - Continuous coal mining process method of open-pit coal mine - Google Patents
Continuous coal mining process method of open-pit coal mine Download PDFInfo
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Abstract
The invention relates to a continuous coal mining process method of an open-pit coal mine, the used main devices comprises a continuous coal mining machine, a walking type crushing machine of a continuous conveying machine unit, a bridge type transloading machine, a walking type transloading machine, an unloading car, a working face belt type conveyor, an outward transport heading belt type conveying machine and an outward transport machine lane belt type conveying machine, and the continuous coal mining process method adopts the continuous mining-continuous conveying way, and adopts the automatic mining, crushing, transloading, unloading and transportation. The coal mining method has advanced process, reasonable design, compact and continuous arrangement of the devices, safety, stability and reliability, high excavating efficiency, multi-stage transportation, smooth conveying and small occupied area, and can effectively improve the recovery rate of resources, reduce the consumption of fuel oil, reduce the carbon emission, be applicable to needs on low carbon, energy conservation and environmental protection and be a very ideal continuous coal mining process method of the open-pit coal mine.
Description
Technical field
The present invention relates to a kind of continuous coal winning technology method of open coal mine, belong to the application of coal excavation apparatus and the technical field of coal-mining method.
Background technology
Open coal mine mostly is nearly horizontal mineral deposit, have storage characteristics such as multiple seam, high seam, thick-covering, the angle is buried mostly below 10 ° in the coal seam, belong to nearly level or gently inclined seam, at present, the most frequently used mining way is: the dredger dredge digging---the semicontinuous or interrupted coal winning technology that truck transport---automatic moving type broken or centralized crusher in crushing---ribbon conveyer is carried.
Above dredger dredge digging---truck transport technology is because of its flexibility, compliance have obtained extensive use by force; But compare with advanced foreign technology, still exist small scale, industrial concentration is low, drawbacks such as production practice is single, but also it is many to exist the truck transport fuel consume, environment pollution is serious, driving passage floor space is big, it is big that concentrated Crushing Station moves difficulty, problems such as length consuming time, make cost of winning high, economic benefit reduces, and has a strong impact on the long term growth in mining area, in addition, adopt existing weaponry and equipment exploitation girdle cost higher, cause most of open coal mine that thickness is abandoned exploitation less than 1 meter girdle, cause the wasting of resources, therefore, press for and suit measures to local conditions, study effective production practice and relevant equipment, to adapt to the development need of low-carbon economy.
Summary of the invention
Goal of the invention
Purpose of the present invention is exactly at disadvantages of background technology, geological conditions at open coal mine, adopt modern coal excavation apparatus, process, company with the continuous digging that realizes open coal mine, fragmentation, transportation adopts---connect the fortune mode, reduce cost, reduce energy consumption, improve resource recovery.
Technical scheme
The equipment that the present invention uses has: continuous miner, continuous conveyor group, dump car, work plane ribbon conveyer, outward transport gallery ribbon conveyer, outward transport machine lane ribbon conveyer, the continuous conveyor group is by the stepped type crushing engine, and bridge conveyor, walking type reversed loader are formed;
The continuous coal winning technology method of open coal mine is as follows:
(1) arranges the installation extractive equipment
1. colliery individual layer getting working face front portion in the open, arrange the even mining-even shipped equipment of installing successively:
Continuous miner---continuous conveyor group---dump car---work plane ribbon conveyer---outward transport gallery ribbon conveyer---outward transport machine lane ribbon conveyer---coal bunker;
Continuous conveyor group erection sequence: stepped type crushing engine, bridge conveyor, walking type reversed loader, bridge conveyor;
2. adopt according to connecting---connect and transport apparatus arrangement, corresponding layout electric control box, anti-explosion cable, illuminating line, fluid pressure line, pneumatic circuit, hydraulic power unit, air pressure pumping plant, relevant corollary equipment, instrument and auxiliary material;
(2) continuous miner digging
Digging power: 340kw
Digging ability: 1200-2000t/h
Coal cutting direction and advance of the face angular separation: α=40 °-60 °
(3) fragmentation of continuous conveyor group, reprinting
1. stepped type crusher in crushing: the coal of continuous miner extraction directly is unloaded to stepped type crushing engine hopper, carries out fragmentation,
Crushing engine power: 110kw
Broken back coal grain diameter :≤300mm
Breaking capacity: 1500-2500t/h
2. bridge conveyor transhipment: the coal after the fragmentation is transported to bridge conveyor, transports;
Reprinting ability: 1500-2500t/h
3. walking type reversed loader transhipment: the coal of bridge conveyor transhipment is transported to walking type reversed loader, reprints;
Reprinting ability: 1500-2500t/h
(4) dump car discharging
The coal that walking type reversed loader is reprinted changes the dump car discharging over to, transports then;
Unloading performance: 1500-2500t/h
(5) the work plane ribbon conveyer is carried
The coal that dump car unloads directly enters the work plane ribbon conveyer, carries to the outward transport gallery;
Conveying capacity: 2000-3000t/h
(6) outward transport gallery ribbon conveyer is carried
The coal of work plane ribbon conveyer output directly enters outward transport gallery ribbon conveyer and carries;
Conveying capacity: 2500-3200t/h
(7) outward transport machine lane ribbon conveyer is carried
The coal of outward transport gallery ribbon conveyer output enters outward transport machine lane ribbon conveyer and carries;
Conveying capacity: 2500-3200t/h
(8) coal stores
The coal of outward transport machine lane ribbon conveyer output enters coal bunker and piles up, stores;
The mode of movement of described strip coal mining is: continuous miner, continuous conveyor group adopt scraping board type to carry, maximum delivery 2500t/h, work plane ribbon conveyer, outward transport gallery ribbon conveyer, outward transport machine lane ribbon conveyer adopt belt conveying, maximum delivery 3200t/h.
Described strip coal mining work plane is that nearly level becomes gently inclined seam, seam inclination＜10 °, and continuous miner, continuous conveyor group are moved towards into the inclination angle with work plane and are arranged that the angle between coal cutting direction and the advance of the face direction is 40 °-60 °.
Described open coal mine upper strata stripping rock advances step pitch L
1=40-80m, the auxilliary wan access width L of upper strata stripping rock
2=20-50m, mine and advance step pitch L in the upper strata
3=40-80m, auxilliary wan access width L mines on the upper strata
4=20-40m.
The described open coal mine stripping rock propelling step pitch L of lower floor
5=40-80m, the auxilliary wan access width L of lower floor's stripping rock
6=20-50m, lower floor mine and advance step pitch L
7=40-80m, lower floor mine and assist wan access width L
8=20-40m.
Described open coal mine coal-face ribbon conveyer is apart from the rib distance L
9=7-10m.
Beneficial effect
The present invention compares with background technology has tangible advance, it is geological conditions at open coal mine, the company of employing adopts---connect the fortune mode, adopt continuous miner, the continuous conveyor group, dump car, the work plane ribbon conveyer, the gallery ribbon conveyer, machine lane ribbon conveyer integral arrangement, form the even mining-even shipped mode of production, adopt automation to exploit continuously, broken, transhipment, discharging, carry, this coal-mining method technology advanced person, reasonable in design, apparatus arrangement is continuously compact, and safety and stability is reliable, digging efficient height, multistage transhipment, carry unobstructedly, floor space is little, and fuel consume is low, environmental protection and energy saving are continuous coal winning technology methods of very good open coal mine.
Description of drawings
Fig. 1 is the strip coal mining state diagram
Fig. 2 is strip coal mining coal cutting advanced state figure
Fig. 3 is the A-A rotation section layering coal mining state diagram of Fig. 2
Shown in the figure, list of numerals is as follows:
1, continuous miner, 2, the stepped type crushing engine, 3, bridge conveyor, 4, walking type reversed loader, 5, dump car, 6, the work plane ribbon conveyer, 7, outward transport gallery ribbon conveyer, 8, outward transport machine lane ribbon conveyer, 9, coal yard, 10, back filled region, 11, go up lithosphere, 12, go up the coal seam, 13, lower floor's rock, 14, following coal seam, 15, go up the truck passage, 16, truck passage down.
α, coal cutting direction and advance of the face angular separation, L1, upper strata stripping rock advance step pitch, L2, the auxilliary wan access width of upper strata stripping rock, mine and advance step pitch in L3, upper strata, mine and assist the wan access width in L4, upper strata, L5, lower floor's stripping rock advance step pitch, L6, the auxilliary wan access width of lower floor's stripping rock, L7, lower floor mine and advance step pitch, and L8, the lower floor auxilliary wan access width of mining, is gone up the lithosphere height at H1, H2, last coal seam height, H3, following lithosphere height, H4, lower floor's coal height, L9, work plane ribbon conveyer are apart from the rib distance.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing:
Shown in Figure 1, be open coal mine coal mining state diagram, apparatus arrangement is provided with by the even mining-even shipped form, and each position, connecting relation want correct, install firmly.
Set gradually stepped type crushing engine 2, bridge conveyor 3, walking type reversed loader 4, dump car 5, work plane ribbon conveyer 6, outward transport gallery ribbon conveyer 7, the outward transport machine lane ribbon conveyer 8 of continuous miner 1, continuous conveyor group at coal-face, the coal of extraction is transported to coal yard 9.
Shown in Figure 2, be strip coal mining coal cutting state diagram, continuous miner 1 connects stepped type crushing engine 2, bridge conveyor 3, the walking type reversed loader 4 of continuous conveyor group, on seat earth, mine, the coal cutting direction of propulsion is for vertically tiltedly advancing, the coal-face direction of propulsion is vertically, and circulation coal cutting direction be horizontal, and angle [alpha]＜60 ° are tiltedly entered in coal cutting.
Shown in Figure 3, be layering coal mining state diagram, below the last lithosphere 11 is last coal seam 12,12 rib L9 places, coal seam assign a work and wear formula conveyer 6 and corollary equipment on distance, it is L1 that last coal seam 12 advances the step pitch width, mines and advance mine auxilliary wan access width L4, lower floor of step pitch L3, upper strata to peel off and advance step pitch L5, the auxilliary wan access width L6 of lower floor's stripping rock, lower floor to mine to advance the auxilliary wan access width L8 that mines of step pitch L7, lower floor in the auxilliary wan access width L2 of upper strata stripping rock, upper strata.
Embodiment 1:
Each coal excavation apparatus, corollary equipment, instrument, auxiliary material all are in quasi-operating status;
By the coal winning technology preparation of mining;
Mine with continuous miner, be transported to dump car with stepped type fragmentation, bridge conveyor, the walking type reversed loader of continuous conveyor group;
Unload coal to the defeated coal of work plane ribbon conveyer with dump car;
The defeated coal of work plane ribbon conveyer is to transporting outward the gallery ribbon conveyer;
The defeated coal of outward transport gallery ribbon conveyer is to transporting outward machine lane ribbon conveyer;
Ribbon conveyer defeated coal in outward transport machine lane is to storing a storage;
Defeated coal speed conveying capacity 2500-3200t/h;
By above process, thereby finished the overall process of coal mining-fragmentation-reprinting-transportation.
Claims (6)
1. the continuous coal winning technology method of an open coal mine, it is characterized in that: the equipment of use has: continuous miner, continuous conveyor group, dump car, work plane ribbon conveyer, outward transport gallery ribbon conveyer, outward transport machine lane ribbon conveyer, the continuous conveyor group is by the stepped type crushing engine, and bridge conveyor, walking type reversed loader are formed;
The continuous coal winning technology method of open coal mine is as follows:
(1) arranges the installation extractive equipment
1. colliery individual layer getting working face front portion in the open, arrange the even mining-even shipped equipment of installing successively:
Continuous miner---continuous conveyor group---dump car---work plane ribbon conveyer---outward transport gallery ribbon conveyer---outward transport machine lane ribbon conveyer---coal bunker;
Continuous conveyor group erection sequence: stepped type crushing engine, bridge conveyor, walking type reversed loader, bridge conveyor;
2. adopt according to connecting---connect and transport apparatus arrangement, corresponding layout electric control box, anti-explosion cable, illuminating line, fluid pressure line, pneumatic circuit, hydraulic power unit, air pressure pumping plant, relevant corollary equipment, instrument and auxiliary material;
(2) continuous miner digging
Digging power: 340kw
Digging ability: 1200-2000t/h
Coal cutting direction and advance of the face angular separation: α=40 °-60 °
(3) fragmentation of continuous conveyor group, reprinting
1. stepped type crusher in crushing: the coal of continuous miner extraction directly is unloaded to stepped type crushing engine hopper, carries out fragmentation,
Crushing engine power: 110kw
Broken back coal grain diameter :≤300mm
Breaking capacity: 1500-2500t/h
2. bridge conveyor transhipment: the coal after the fragmentation is transported to bridge conveyor, transports;
Reprinting ability: 1500-2500t/h
3. walking type reversed loader transhipment: the coal of bridge conveyor transhipment is transported to walking type reversed loader, reprints;
Reprinting ability: 1500-2500t/h
(4) dump car discharging
The coal that walking type reversed loader is reprinted changes the dump car discharging over to, transports then;
Unloading performance: 1500-2500t/h
(5) the work plane ribbon conveyer is carried
The coal that dump car unloads directly enters the work plane ribbon conveyer, carries to the outward transport gallery;
Conveying capacity: 2000-3000t/h
(6) outward transport gallery ribbon conveyer is carried
The coal of work plane ribbon conveyer output directly enters outward transport gallery ribbon conveyer and carries;
Conveying capacity: 2500-3200t/h
(7) outward transport machine lane ribbon conveyer is carried
The coal of outward transport gallery ribbon conveyer output enters outward transport machine lane ribbon conveyer and carries;
Conveying capacity: 2500-3200t/h
(8) coal stores
The coal of outward transport machine lane ribbon conveyer output enters coal bunker and piles up, stores.
2. the continuous coal winning technology method of open coal mine according to claim 1, it is characterized in that: the mode of movement of described strip coal mining is: continuous miner, continuous conveyor group adopt scraping board type to carry, maximum delivery 2500t/h, work plane ribbon conveyer, outward transport gallery ribbon conveyer, outward transport machine lane ribbon conveyer adopt belt conveying, maximum delivery 3200t/h.
3. the continuous coal winning technology method of open coal mine according to claim 1, it is characterized in that: described strip coal mining work plane is that nearly level becomes gently inclined seam, seam inclination＜10 °, continuous miner, continuous conveyor group are moved towards into the inclination angle with work plane and are arranged that the angle between coal cutting direction and the advance of the face direction is 40 °-60 °.
4. the continuous coal winning technology method of open coal mine according to claim 1 is characterized in that: described open coal mine upper strata stripping rock propelling step pitch L
1=40-80m, the auxilliary wan access width L of upper strata stripping rock
2=20-50m, mine and advance step pitch L in the upper strata
3=40-80m, auxilliary wan access width L mines on the upper strata
4=20-40m.
5. the continuous coal winning technology method of open coal mine according to claim 1 is characterized in that: the described open coal mine stripping rock propelling step pitch L of lower floor
5=40-80m, the auxilliary wan access width L of lower floor's stripping rock
6=20-50m, lower floor mine and advance step pitch L
7=40-80m, lower floor mine and assist wan access width L
8=20-40m.
6. the continuous coal winning technology method of open coal mine according to claim 1, it is characterized in that: described open coal mine coal-face ribbon conveyer is apart from the rib distance L
9=7-10m.
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| CN102140916A (en) * | 2010-12-15 | 2011-08-03 | 河北天择重型机械有限公司 | Process and apparatus for mining open pit |
| CN102155227A (en) * | 2011-02-18 | 2011-08-17 | 北京矿冶研究总院 | Vertical direction continuous mining method and application in whole ore body continuous mining |
| CN102733809A (en) * | 2012-06-04 | 2012-10-17 | 闫林 | Coal mining method for recovering open-pit coal mine end slope coal |
| CN102777184A (en) * | 2012-08-08 | 2012-11-14 | 中联重科物料输送设备有限公司 | Mining system and method of mines |
| CN102889084A (en) * | 2012-09-05 | 2013-01-23 | 中国煤炭科工集团太原研究院 | Continuous mining technique for thin coal layer of opencast coal mine |
| CN103256051A (en) * | 2013-05-14 | 2013-08-21 | 中国煤炭科工集团太原研究院 | Double-wing continuous coal mining technique for open-pit coal mine |
| CN103726850A (en) * | 2013-10-09 | 2014-04-16 | 中国矿业大学 | Open-pit mining method for triangular ore quantity between layered flat deposit strip areas |
| CN104564077A (en) * | 2014-12-22 | 2015-04-29 | 中国神华能源股份有限公司 | Coal exploitation and transportation process for open coal mine |
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| CN106869937A (en) * | 2017-04-11 | 2017-06-20 | 中国神华能源股份有限公司 | Discharge method in the side of opencut end |
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| CN102140916A (en) * | 2010-12-15 | 2011-08-03 | 河北天择重型机械有限公司 | Process and apparatus for mining open pit |
| CN102155227A (en) * | 2011-02-18 | 2011-08-17 | 北京矿冶研究总院 | Vertical direction continuous mining method and application in whole ore body continuous mining |
| CN102733809A (en) * | 2012-06-04 | 2012-10-17 | 闫林 | Coal mining method for recovering open-pit coal mine end slope coal |
| CN102733809B (en) * | 2012-06-04 | 2014-10-08 | 闫林 | Coal mining method for recovering open-pit coal mine end slope coal |
| CN106121652A (en) * | 2012-07-09 | 2016-11-16 | 薛世忠 | Closed pit open-pit mine ore recovery method |
| CN102777184A (en) * | 2012-08-08 | 2012-11-14 | 中联重科物料输送设备有限公司 | Mining system and method of mines |
| CN102777184B (en) * | 2012-08-08 | 2015-12-09 | 中联重科物料输送设备有限公司 | The mining system in mine and method |
| CN102889084A (en) * | 2012-09-05 | 2013-01-23 | 中国煤炭科工集团太原研究院 | Continuous mining technique for thin coal layer of opencast coal mine |
| CN103256051A (en) * | 2013-05-14 | 2013-08-21 | 中国煤炭科工集团太原研究院 | Double-wing continuous coal mining technique for open-pit coal mine |
| CN103726850A (en) * | 2013-10-09 | 2014-04-16 | 中国矿业大学 | Open-pit mining method for triangular ore quantity between layered flat deposit strip areas |
| CN104612693A (en) * | 2014-12-13 | 2015-05-13 | 中国煤炭科工集团太原研究院有限公司 | Continuous coal-mining technology for strip mine |
| CN104564077A (en) * | 2014-12-22 | 2015-04-29 | 中国神华能源股份有限公司 | Coal exploitation and transportation process for open coal mine |
| CN104564077B (en) * | 2014-12-22 | 2016-07-06 | 中国神华能源股份有限公司 | A kind of open coal mine coal mining transportation technology |
| CN104790956A (en) * | 2015-03-13 | 2015-07-22 | 余绍泽 | Remote control heading machine tunnel type or fully-mechanized top coal exploitation end slope coal technology |
| CN104863594A (en) * | 2015-04-30 | 2015-08-26 | 华能伊敏煤电有限责任公司 | Machine channel construction design method for strip mine semi-continuous production system |
| CN104863594B (en) * | 2015-04-30 | 2017-05-17 | 华能伊敏煤电有限责任公司 | Machine channel construction design method for strip mine semi-continuous production system |
| CN104960934A (en) * | 2015-06-12 | 2015-10-07 | 唐山冀东装备工程股份有限公司 | Mine continuous mining and conveying system and method |
| CN106089211A (en) * | 2016-08-19 | 2016-11-09 | 郑晓辉 | A kind of surface mine is unmanned excavates Load System |
| CN106593448A (en) * | 2016-12-20 | 2017-04-26 | 中国神华能源股份有限公司 | Mining method for surface coal mine |
| CN106593448B (en) * | 2016-12-20 | 2018-12-04 | 中国神华能源股份有限公司 | The recovery method of open coal mine |
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