CN104912557A - High-efficiency thin coal seam complete-set coal mining equipment and coal mining method - Google Patents
High-efficiency thin coal seam complete-set coal mining equipment and coal mining method Download PDFInfo
- Publication number
- CN104912557A CN104912557A CN201510226000.8A CN201510226000A CN104912557A CN 104912557 A CN104912557 A CN 104912557A CN 201510226000 A CN201510226000 A CN 201510226000A CN 104912557 A CN104912557 A CN 104912557A
- Authority
- CN
- China
- Prior art keywords
- coal
- hydraulic support
- winning machine
- drag conveyor
- mining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention relates to high-efficiency thin coal seam complete-set coal mining equipment and a coal mining method; a coal mining machine is an electric traction coal mining machine, and a machine body is hung out of a scraper conveyer. The coal mining method includes the steps: the equipment is arranged on a coal mining working face in a complete-set mode; the coal mining machine is moved to a position of an advanced notch for feeding, after feeding, the scraper conveyer is propelled by a transition way, and the coal mining machine goes forward to cut coal so as to complete feeding; after completion of feeding, the coal mining machine goes forward to cut the coal at a speed of 3-4 m per minute along a coal wall and allows the coal to be loaded to a middle groove of the scraper conveyer; after the coal mining machine walks, a hydraulic support is pushed to move; and pushing downspouting is carried out in the range of 10-15 m behind the hydraulic support propelled to move. The problem of extremely thin coal seam mechanization comprehensive mining is solved, all mining devices are mechanized, and the mining devices satisfy the problem of extremely low mining height space arrangement, the complete set of equipment is rational in layout, the coal mining steps are reasonably carried out, the production efficiency is improved, the worker participation degree is reduced, and the mining safety is improved.
Description
Technical field
the present invention relates to and a kind ofly carry out the high efficiency complete set apparatuses coal excavation apparatus of mining and coal-mining method at girdle.
Background technology
By regulation, the coal seam of below 0.8m is called ultra-thin coal seam.China's girdle aboundresources, widely distributed, below 1.3m coal seam recoverable reserves accounts for 20%, and national girdle and ultra-thin coal seam recoverable reserves account for 16.9% and 2.8% of whole recoverable reserves respectively.Very large at some provinces, district's girdle reserves proportion, as Sichuan Province accounts for 60%, Shandong Province 54%, Heilongjiang Province accounts for 51%, and Guizhou Province accounts for 37%.Particularly in southern area, some province girdle accounts for more than 50% only, and girdle distribution is wide, and ature of coal is good.But because its working seam thickness is thin, with in thickly to compare with high seam, girdle mechanical mining also exists and works under hard conditions, equipment moving difficulty, the geological structure such as Coal Seam Thickness Change, tomography, large to girdle device fabrication performance impact, and input-output ratio is high, economic benefit not as thick with medium-thickness seam etc. specific question, cause girdle mechanical mining technical development speed relatively slow.
China 0.8m and following work plane major part appoint adopt be explosion coal-falling, the production practice of manually coalingging is mined.What only have a seldom part to adopt is high-grade conventional mining.There is following problem in what the method for adopting at ultra-thin coal seam machine was at present main: 1, equipment initial investment is large, roadway construction section large (more than 12m2), the shortcomings such as resource recovery lower (about about 60%).Single face output level lower (for domestic Xinwen Mining Administration used the earliest, the highest monthly output only about 5000 tons), can not, as the main mining face of mine, be mainly used in reclaiming corner coal at present.2, for the ultra-thin coal seam of mining height lower than 0.8m, upper and lower breach need caunch, and workload is comparatively large, equipment frequently movement in addition, and protect top difficulty and strengthen, preparation amount is larger, and the work plane that qualitative changeization is little over the ground, and per unit area yield is difficult to improve.3, fundamentally do not improve that work plane employment is many, labor strength be large, the present situation of work plane security context difference.
For girdle, the especially mechanical mining of ultra-thin coal seam, at least needs satisfied following technical indicator:
(1), according to condition of coal seam occurrence and working condition, the mining conditions that this outfit should adapt to: mining height 0.7m-1.2m, seam inclination ≯ 45 °, coal hardness f≤4 and can cut a small amount of rock, along tilting to have certain thin seam working surface risen and fallen.(2), equipment and technology is ripe, rational in infrastructure, and the mining conditions for complexity has larger rich ability and stronger stability, can give full play to the comprehensive potential of equipment, and minimum the combining meeting monthly output 20,000 tons adopts index.Equipment operation rate reaches more than 85%.(3), under the prerequisite meeting equipment use function, corollary equipment machine height ≯ 550mm; Underneath clearance ≮ 250mm; Cross machine space ≮ 200mm; In minimum mining height state People's Bank of China, spatial altitude reaches 550mm, width reaches 800mm.(4), work plane monthly output reach 20,000 t, annual production reaches 200,000 t.(5) reliability: non-artificial factor, electromechanical equipment accident rate is no more than 24 hours/ten thousand t.(6) subtract people and put forward effect: employment reduces 30% compared with general adopting, and working face layout improves more than 1 times, and work efficiency improves more than 2 times.
In order to meet above-mentioned requirements, the application develops and discloses following two technology: patent 201010212464.0, ultra-thin coal seam bottom climbing type comprehensive mechanical mining method; Patent 201310141429.8, Extra-thin coal.Above-mentioned two technology effective solve that ultra-thin coal seam is mechanical integrated melts some problems of adopting.Because above-mentioned two technology belong to some technical characteristics disclosed in this technology development process, and unexposed complete, disclose only more intending technology, in concrete test afterwards and implementation process, produce the change of some problems or technology, or concrete feature technology does not carry out open.
summary of the invention:
In order to solve the problem, the invention provides the complete coal excavation apparatus of efficient girdle and coal-mining method.
The complete coal excavation apparatus of efficient girdle of the present invention, comprise coal-winning machine 2, hydraulic support 5, drag conveyor 4, ramp plate, wherein hydraulic support is supported on coal-face top board, under coal-winning machine, drag conveyor, coal shovel are arranged on hydraulic support top beam by back timber; Ramp plate is arranged on the downside of coal-winning machine, and ramp plate is connected with bottom drag conveyor; It is characterized in that,
Described coal-winning machine is electrical haulage shearer, and be made up of fuselage and gap bridge, front fuselage arranges coal-cutting drum, back body arranges gap bridge, and pass a bridge and straddle on drag conveyor, fuselage hangs drag conveyor, passing a bridge with the spacing of the intermediate channel of drag conveyor is 250 ~ 400mm
Its machine height of described coal-winning machine is 500 ~ 525mm, diameter of cylinder 600 ~ 750mm, and cylinder cuts dark 750 ~ 850mm.
The coal-mining method of the complete coal excavation apparatus of efficient girdle of the present invention, specific as follows:
(1), in the following manner complete sets of equipment is laid in coal-face:
At coal-face arranged hydraulic support, hydraulic support top beam front end is apart from rib 280 ~ 340mm, ramp plate front end and rib distance 100 ~ 200mm, stay the coal cutting height set as 200 ~ 300mm, people's row space is stayed between hydraulic support column and drag conveyor, its People's Bank of China's spatial altitude is greater than 550mm, and width is greater than 800mm.
(2), coal-winning machine feed:
Adopt blasting method to offer advanced breach in the upper end of coal-face and lower end, coal-winning machine is moved to advanced indentation, there, starts coal mining machine roller, and haulage shearer starts coal cutting with the speed of 3 ~ 4m per minute.
Pass drag conveyor, start to pass drag conveyor to rib 1 outside the front 15m of coal-winning machine direct of travel, adopt transient mode to advance, namely 0m is passed outward at coal-winning machine front 15m, progressive passing, passes 800mm outward to coal-winning machine front 30m, and changeover portion is drag conveyor curved bel.
Coal-winning machine moves ahead coal cutting, when walking to curved bel, cuts dark feed when moving ahead coal cutting to rib depths, goes curved bel, and coal-winning machine cuts and is deep to 800mm.
And then the scraper plate conveying of advanced indentation, there to curved bel is moved to rib thruster, form straight line to drag conveyor at coal-face; Coal-winning machine returns row, and cuts the coal of curved bel and advanced breach, and feed completes.
(3), coal cutting:
Coal-winning machine to move ahead coal cutting along rib with the speed of 3 ~ 4m per minute, and in coal cutting process, with cylinder, coal is transported to the middle pan of scraper conveyor, and by drag conveyor, coal is transported to machine lane; After coal-winning machine is capable, the coal miner followed is by the float coal income drag conveyor between drag conveyor and hydraulic support column.
(4), hydraulic support is passed:
At drag conveyor rear, 3-5m place starts to pass hydraulic support, order forward hydraulic support 800mm after passing through along coal-winning machine; To hydraulic support top beam front end apart from rib 280 ~ 340mm, the hydraulic support passed forms straight line at coal-face, and hydraulic support rises hydraulic support top beam after passing and putting in place, make hydraulic support top beam tightly contact 3 ~ 5 seconds with coal-face top board, make hydraulic support reach just lift.
(5), pushing and sliding:
Pushing and sliding within the scope of the hydraulic support rear 10 ~ 15m completing passing, pushing and sliding move ahead 800m, and adopt transient mode to advance, changeover portion is drag conveyor curved bel; Curved bel length is greater than 15m, and in pushing and sliding process, drag conveyor is travel position.
The efficient complete coal excavation apparatus of girdle as above, is specially, and passing a bridge with the spacing of the intermediate channel of drag conveyor is 275mm.
The coal-mining method of the complete coal excavation apparatus of girdle as above efficient, is specially, the hydraulic support top beam front end of laying apart from rib 300mm, ramp plate front end and rib distance 180mm, stay the coal cutting of setting highly as 280mm.
The coal-mining method of the complete coal excavation apparatus of girdle as above efficient, is specially, and in coal-winning machine feed process, coal-winning machine to be advanced coal cutting with the speed of 3.2m per minute; After completing after feed, coal-winning machine to move ahead coal cutting along rib with the speed of 4m per minute.
The coal-mining method of the efficient complete coal excavation apparatus of girdle as above, be specially, at drag conveyor rear, 5m place starts to pass hydraulic support, to hydraulic support top beam front end apart from rib 300mm; Make hydraulic support top beam tightly contact 5 seconds with coal-face top board, make hydraulic support reach just lift.
The coal-mining method of the efficient complete coal excavation apparatus of girdle as above, is specially, pushing and sliding within the scope of the hydraulic support rear 15m completing passing.
Beneficial effect of the present invention is, solve the mechanization of underground ultra-thin coal seam and combine full mining problem, all mining equipment full mechanizations, and mining equipment is satisfied with the Layout Problem in extremely low mining height space, a complete set of equipment rational deployment, rationally carry out coal mining step, complete ultra-thin coal seam mechanization from overall plan and combine standard-sized sheet and adopt, improve production efficiency, reduce the participation of workman, a large amount of minimizing downhole operations working quantity, reduces operation labour intensity, improves stoping safety.
Accompanying drawing illustrates:
Fig. 1 is work plane a complete set of equipment arrangement figure of the present invention.
Fig. 2 is that the present invention mines feed step schematic diagram.
Detailed description of the invention
Coal-winning machine 2 of the present invention two in rib side feets and be arranged on the rail groove of two semi-surrounding structures of old man side, totally four strong points.The feet of rib side can rotate to an angle, and its soffit is supported in the shovel board of drag conveyor, and upper surface hooks below tooth bar, and feet can realize the degree of freedom on coal-winning machine three directions; The guiding device rail groove of old man side by hinge on gap bridge, can rotate to an angle to adapt to seat earth to rise and fall, the pin row of rail groove and scratch board conveyor snaps together mutually, leaves certain gap each other, can limit the degree of freedom of coal-winning machine four direction.Walking gear is worked in coordination mutually with rack rails, using the hoofing part as coal-winning machine, and drive end is arranged on coal mining pusher side, eliminates coal-winning machine in the past and, across the axle excessively on drag conveyor, adds the space of coal.Fuel tank is mounted in the autonomous system on gap bridge, and this design makes volume of fuel tank strengthen, and solves oil sump heating, heightens the flimsy problem of pump.And facilitating oiling and more renew cartridge, this design heightening brakes effectively improves system reliability and maintainability.Scraper Conveyor in Mining Face selects flat double center chain to draw.Working resistance of support reaches 3200KN, and pushing and sliding adopt upside-down mounting mode, passes step pitch 0.8m.
Mining height scope and the minimum and maximum physical dimension of hydraulic support 5 of coal-winning machine 1 adapt; Coal-winning machine cuts deeply to be passed step pitch with hydraulic support and adapts; The intermediate channel of drag conveyor 4 and the spacing of hydraulic support 5 advancing jack linkage and syndeton match; The head of conveyer, aircraft tail shelf and transition bracket, face end support pass the spacing of linkage and syndeton matches.Hydraulic support top beam is generally ≯ 340mm, in case leak-stopping top and cylinder 3 cut back timber apart from rib.The underneath clearance of coal-winning machine reaches 250-400mm, so that coal stream is smoothly by coal-winning machine fuselage bottom.Ensure that coal cutting safe altitude is generally not less than 200-300mm.Ensure that hydraulic support and scratch board conveyor and coal-winning machine have enough safe distances, minimum 200-400mm.The stroke of advancing jack is greater than coal-winning machine and cuts dark, is generally 100-200mm.Have space between rib 1 and ramp plate, prevent coal-winning machine cutting ramp plate by cylinder during scratch board conveyor 4 bending section, gap ensures 100-200mm.Between corollary equipment, mutual alignment and matching relationship should be coordinated, and carry out ground assembly and adjustment after equipment to mining area, check that each equipment room complements one another relation and relative space position.
Coal-winning machine, based on ac variable frequency speed regulation electric traction technology, adopts and meets more large-inclination-angle coal bed adaptive capacity without chain pin row mode of traction.But the arrangement of haulage gear (inside and outside) should consider the impact of other factors.Hauling speed is suitable for, and can not be less than 3m/min; The cutting units of coal-winning machine is equipped with powerful effective atomizing de-dusting apparatus.When seam inclination is greater than 12 °, coal-winning machine will have shoe; When seam inclination is greater than 16 °, support and conveyer will have anti-skidding, anti-down and adjust rack device.
Moving manner adopts adjacent-support control, added control undercarriage.Timberer must adopt the machine of chasing after to move frame, and normal condition is moved frame and answered delayed cylinder 3 ~ 5m, and served as geology change band, roof cracking, pressure is large, when wall caving is serious, should draw advanced frame, generally after coal-winning machine coal cutting, just start to move frame and carry out supporting fresh roof.When segmentation moves frame, two sections are moved frame distance and must not be less than 15m.Move frame order: operation column and balance jack make back timber slightly from top board → stopping fall post try to stop people from fighting each other regulation step pitch → tune frame make support and transporter vertical support frame not crooked, center line conforms with the regulations, full face support alinement → setting prop adjusts balance jack simultaneously, make back timber tightly contact 3-5s with top board, ensure to reach setting load → stretch out side guard board to make it near adjacent overhead support.
Pushing and sliding work should be carried out in drag conveyor runs, and except head, tail, shuts down inaccurate pushing and sliding.Each pushing and sliding must pass a step pitch, if because of the cutter that wafts, or the end of stopping is too much, when pushing and sliding push away motionless, should carry out the machine that returns or pad transporter in time, labor cleaning etc.During labor cleaning, support must be in support serviceable condition, and carries out temporary lining, looks for outstanding cash, crag, and establishes special messenger to guard support, top board, coal side.During the lifting of pad transporter, chainlet used, hook, coupling arrangement must have enough safety factor.
When 5. pushing defeated head, tail, first must clear up float coal, floating cash, and first replace the good canopy leg be in the way, can pass after having hung cable, water pipe; Forbid to make reduction box, motor with monomer.After having pushed away head or tail, three of its termination supports must be drawn immediately then can to do other work.Passing Scraper Conveyor in Mining Face and coal-winning machine should keep 10-15m distance, and bending section is not less than 15m.
As follows at coal work, see that the present invention removes Fig. 2, coal-winning machine is to advanced indentation, there, and start feed, step is shown in accompanying drawing 2(a).Then pass and scrape conveyer to rib, step is shown in accompanying drawing 2(b).Start feed coal cutting, cylinder cuts rib depths gradually, and step is shown in accompanying drawing 2(c).Feed to setting cut dark after, stop moving ahead, and push the drag conveyor of curved bel to rib, step is shown in accompanying drawing 2(d).Drag conveyor is passed to straight line, and coal-winning machine returns, undercutting cutter place's coal and advanced indentation, there coal.
Determination work plane mining height of the present invention is 0.85 ~ 0.9m, and face length is 130m, and it is 0.8m that work plane cuts dark.The coal-face rate of extraction is increased to the level of more than 98%, comparatively specifies that back production requires raising 1%.
This technology completes following concrete enforcement:
Enforcement colliery base object model is II grade, immediate roof belongs to II class, is suitable for adopting hydraulic shield support.The coal of work plane is thick is 0.85 ~ 0.9 m, is suitable for selecting minimum mining height in the frame type of 0.9 below m; According to parameters of mining face, require that drag conveyor can adapt to length 150 meters of work planes, transport capacity >=300t/h.
(1) work plane basic condition
Implement coal face: it is 0.66-1.10 meters that this work plane is positioned at coal seam thickness, average 0.86 meter.Attitude of coal is 102 ° of-115 ° of ∠ 12 °-44 °, and work plane top is delayed, and bottom is steep.The little brittleness of seam hardness is large, external cranny development, often by calcite filling, belongs to half secretly---and half bright moulded coal, ature of coal is middle ash, low-sulfur, special low-phosphorous high combustion value coal, coal class 1/3 coking coal.
Strike length 920m, average tilt length 130m, recoverable reserves 11.2 ten thousand tons.K21 coal seam immediate roof is grey Sandy Silt, there is false roof in Local topography, its lithology is grey mud stone, K21 coal seam and K22 coal seam spacing are 1.80(south)-3.50(north) rice, be generally about 2.65 meters, the direct end, K21 coal seam is that grey Sandy Silt presss from both sides a small amount of seam, and Local topography is charcoal mudrock, past is grey argillaceous siltstoue, and wherein top, coal seam, floor strata thickness are shown in composite columnar section above.Top, K21 coal seam, floor strata joint are comparatively grown, and top K22 exploits in coal seam in addition, and because being subject to mining influence, rock stratum is more broken.
(2), fully-mechanized mining working capital equipment is supporting
According to " three machines " research for matching achievement, in conjunction with work plane Basic Geological situation, the main corollary equipment of work plane is as following table:
Work plane fully-mechanized mining equipment auxiliary plan list
Two Extensible belt transporters are installed in machine lane and bridge conveyor, an emulsion power pack are located at machine lane entrance.Machine air way adopts JD-25 car hauler to be responsible for the transport such as material, equipment.Adopt JH-14 drawing hoist traction bridge conveyor.
Coal mining machine in full-mechanized mining face, work plane scratch board conveyor, emulsion power pack adopt 1140V power voltage supply, are powered by mobile substation.All the other equipment adopts 660V power voltage supply, is powered by working section sub station.
the production capacity obtained after implementing and output:
(1) this face of adopting produces per tour under normal circumstances to every day two classes in 1 ~ June and can reach 1 circulation, and 21834 tons, raw coal is produced in symbiosis in 1 ~ June, average monthly output 4366 tons.Restriction due to equipment and work plane geological conditions fails to reach the target (planning monthly output 1.35 ten thousand tons) of industrial experiment planning on time.
(2) average split run is produced and is reached 2 circulations, and wherein Straight Run production in November output has reached 22450 tons, and this moon, the highest day circulation reached 7, circulated average day 6.And the conventional face of the same terms, the moon, the highest amount of adopting was 9882 tons.Production capacity increases by 1.27 times.
Annual value of production (ten thousand yuan) is calculated according to implementation result
Annual value of production higher than same condition conventional face, as following table:
| Corollary equipment fully-mechanized mining working | Conventional face |
| 11045.4 | 4980.5 |
Note: the comprehensive price in coal market per ton (comprising the value of clean fine coal and middle coal) is by 310 yuan of calculating.
The fully-mechanized mining working annual value of production of being equipped by this corollary equipment can reach 11045.4 ten thousand yuan, improves 6064.8 ten thousand yuan than the same terms conventional face.
Assess the cost according to implementation result:
As can be seen from the above table, between the fully-mechanized mining working normal production period equipped by this corollary equipment, to decline 34.09 yuan/t than conventional face cost, by annual output 23.64 ten thousand tons calculating, annual cost saving 805.9 ten thousand yuan.
The fully-mechanized mining working equipped by this corollary equipment is compared with conventional face under the same terms, and yearly productive capacity improves 0.99 times, and efficiency improves 3.14 times, and cost of ton coal have dropped 34.09 yuan, and year creates economic benefit about 4459.69 ten thousand yuan.
the safety of this enforcement technology is summed up:
Efficient girdle fully-mechanized mining has accomplished Rational Matching, and ensure that safe space, the total space protects top, and supporting is timely, and supporting dynamics, better reliability, can be described as and eliminate roof accident source.Since the exploitation of this face, stopped because of the roof accident that supporting is ineffective, top board leakage is emitted, the post etc. that falls causes, this is inconceivable on general excavating technology.
Comprehensive mining machinery degree is high, and worker's labour intensity obtains maximum reduction, and working space is roomy and relatively dry and comfortable, and dust-proof effect is better, and operation comfort level is better.And the fully mechanized mining supporter of electrichydraulic control, can to try to stop people from fighting each other in groups, pushing and sliding, and can realize far distance controlled, operating efficiency is higher, and safety insurance degree is better.
the social benefit of this enforcement technology:
Current thin seam working surface coal-mining method is mainly general adopting, i.e. hand-holing, explosion coal-falling, manually hovel the coal-mining method of coal and artificial prop drawing from one place to another, these operations all also exist larger danger, most of accident all occurs in these operations, and thin coal bed fully-mechanized mining just fundamentally solves these problems, very large facilitation is played to the safety in production in colliery.
Mining height controls at below 1m, effectively can solve a difficult problem for thin coal bed fully-mechanized conjunction mechanical mining, fills up the multinomial blank of thin coal bed fully-mechanized mining device fabrication, solves the technical barrier always perplexing China coal industry development for a long time.Safety and high efficiency for China's girdle provides a kind of new method.This Technique Popularizing is applied, can increase substantially and improve thin seam mining equipment, the proportion of girdle mechanical mining output, greatly improve resource recovery, for realizing china natural resources balanced exploitation, alleviate produce the contradiction that continues, make full use of coal resources, extend the shaft production life-span, the equal tool of sustainable development that realizes whole coal industry is of great significance, realize intensive manufacture, improve the technical level of coal industry comprehensively.
Claims (7)
1. the efficient complete coal excavation apparatus of girdle, comprise coal-winning machine (2), hydraulic support (5), drag conveyor (4), ramp plate, wherein hydraulic support is supported on coal-face top board, under coal-winning machine, drag conveyor, coal shovel are arranged on hydraulic support top beam by back timber; Ramp plate is arranged on the downside of coal-winning machine, and ramp plate is connected with bottom drag conveyor; It is characterized in that,
Described coal-winning machine is electrical haulage shearer, and be made up of fuselage and gap bridge, front fuselage arranges coal-cutting drum, back body arranges gap bridge, and pass a bridge and straddle on drag conveyor, fuselage hangs drag conveyor, passing a bridge with the spacing of the intermediate channel of drag conveyor is 250 ~ 400mm
Its machine height of described coal-winning machine is 500 ~ 525mm, diameter of cylinder 600 ~ 750mm, and cylinder cuts dark 750 ~ 850mm.
2. the coal-mining method of the efficient complete coal excavation apparatus of girdle,
(1), in the following manner complete sets of equipment is laid in coal-face:
At coal-face arranged hydraulic support, hydraulic support top beam front end is apart from rib 280 ~ 340mm, ramp plate front end and rib distance 100 ~ 200mm, stay the coal cutting height set as 200 ~ 300mm, people's row space is stayed between hydraulic support column and drag conveyor, its People's Bank of China's spatial altitude is greater than 550mm, and width is greater than 800mm;
(2), coal-winning machine feed:
Adopt blasting method to offer advanced breach in the upper end of coal-face and lower end, coal-winning machine moved to advanced indentation, there, start coal mining machine roller (3), and haulage shearer starts coal cutting with the speed of 3 ~ 4m per minute,
Pass drag conveyor, start to pass drag conveyor to rib (1) outside the front 15m of coal-winning machine direct of travel, employing transient mode advances, namely 0m is passed outward at coal-winning machine front 15m, progressive passing, pass 800mm outward to coal-winning machine front 30m, changeover portion is drag conveyor curved bel;
Coal-winning machine moves ahead coal cutting, when walking to curved bel, cuts dark feed when moving ahead coal cutting to rib depths, goes curved bel, and coal-winning machine cuts and is deep to 800mm,
And then the scraper plate conveying of advanced indentation, there to curved bel is moved to rib thruster, form straight line to drag conveyor at coal-face; Coal-winning machine returns row, and cuts the coal of curved bel and advanced breach, and feed completes;
(3), coal cutting:
Coal-winning machine to move ahead coal cutting along rib with the speed of 3 ~ 4m per minute, and in coal cutting process, with cylinder, coal is transported to the middle pan of scraper conveyor, and by drag conveyor, coal is transported to machine lane; After coal-winning machine is capable, the coal miner followed is by the float coal income drag conveyor between drag conveyor and hydraulic support column;
(4), hydraulic support is passed:
At drag conveyor rear, 3-5m place starts to pass hydraulic support, order forward hydraulic support 800mm after passing through along coal-winning machine; To hydraulic support top beam front end apart from rib 280 ~ 340mm, the hydraulic support passed forms straight line at coal-face, and hydraulic support rises hydraulic support top beam after passing and putting in place, make hydraulic support top beam tightly contact 3 ~ 5 seconds with coal-face top board, make hydraulic support reach just lift;
(5), pushing and sliding:
Pushing and sliding within the scope of the hydraulic support rear 10 ~ 15m completing passing, pushing and sliding move ahead 800m, and adopt transient mode to advance, changeover portion is drag conveyor curved bel; Curved bel length is greater than 15m, and in pushing and sliding process, drag conveyor is travel position.
3. the efficient complete coal excavation apparatus of girdle as claimed in claim 1, is characterized in that, passing a bridge with the spacing of the intermediate channel of drag conveyor is 275mm.
4. the coal-mining method of the complete coal excavation apparatus of girdle as claimed in claim 2 efficient, is characterized in that, the hydraulic support top beam front end of laying apart from rib 300mm, ramp plate front end and rib distance 180mm, stay the coal cutting of setting highly as 280mm.
5. the coal-mining method of the complete coal excavation apparatus of girdle as claimed in claim 2 efficient, is characterized in that, in coal-winning machine feed process, coal-winning machine to be advanced coal cutting with the speed of 3.2m per minute; After completing after feed, coal-winning machine to move ahead coal cutting along rib with the speed of 4m per minute.
6. the coal-mining method of the efficient complete coal excavation apparatus of girdle as claimed in claim 2, it is characterized in that, at drag conveyor rear, 5m place starts to pass hydraulic support, to hydraulic support top beam front end apart from rib 300mm; Make hydraulic support top beam tightly contact 5 seconds with coal-face top board, make hydraulic support reach just lift.
7. the coal-mining method of the efficient complete coal excavation apparatus of girdle as claimed in claim 2, is characterized in that, pushing and sliding within the scope of the hydraulic support rear 15m completing passing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510226000.8A CN104912557A (en) | 2015-05-06 | 2015-05-06 | High-efficiency thin coal seam complete-set coal mining equipment and coal mining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510226000.8A CN104912557A (en) | 2015-05-06 | 2015-05-06 | High-efficiency thin coal seam complete-set coal mining equipment and coal mining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104912557A true CN104912557A (en) | 2015-09-16 |
Family
ID=54081950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510226000.8A Pending CN104912557A (en) | 2015-05-06 | 2015-05-06 | High-efficiency thin coal seam complete-set coal mining equipment and coal mining method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104912557A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298495A (en) * | 2015-11-06 | 2016-02-03 | 广州日滨科技发展有限公司 | Coal mining technology debugging method and device |
| CN105422156A (en) * | 2015-12-11 | 2016-03-23 | 北京天地玛珂电液控制系统有限公司 | Automatic pushing-rolling control method for thin coal seam |
| CN105422098A (en) * | 2015-11-20 | 2016-03-23 | 西安科技大学 | Extremely thin coal rock bed slide saw type mechanized mining method |
| CN105507902A (en) * | 2015-12-07 | 2016-04-20 | 平顶山天安煤业股份有限公司 | Graded mining method of coal-rock co-mining working face |
| CN105863639A (en) * | 2016-05-27 | 2016-08-17 | 安徽理工大学 | Coal-mining method of loose coal seam |
| CN106948814A (en) * | 2017-03-17 | 2017-07-14 | 中国神华能源股份有限公司 | A kind of coal excavation apparatus and coal-mining method |
| CN107542466A (en) * | 2017-08-18 | 2018-01-05 | 天地科技股份有限公司 | A kind of suspension type coal-winning machine girdle automatically working face coordinated mode |
| CN107701216A (en) * | 2017-08-30 | 2018-02-16 | 中国矿业大学 | A kind of control device and control method of coal-face linearity |
| CN110630266A (en) * | 2019-08-27 | 2019-12-31 | 四川川煤华荣能源股份有限公司 | Method for enabling large-dip-angle fully-mechanized coal mining face to cross fault |
| CN110685690A (en) * | 2019-08-20 | 2020-01-14 | 北京龙软科技股份有限公司 | Inclination adjusting control method for fully mechanized mining face of medium-thickness inclined coal seam |
| CN111119896A (en) * | 2019-12-24 | 2020-05-08 | 中国矿业大学(北京) | Bauxite mining method |
| CN111677504A (en) * | 2020-06-19 | 2020-09-18 | 北京中矿创新联盟能源环境科学研究院 | Coal mining device and coal mining system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1645553A1 (en) * | 1989-05-15 | 1991-04-30 | Донецкий политехнический институт | Method of mining outburst-prone coal seams |
| RU2077673C1 (en) * | 1992-11-23 | 1997-04-20 | Игорь Львович Машковцев | Method for excavating graphite from a thin steeply dipping sheet deposit |
| CN1229165A (en) * | 1998-03-18 | 1999-09-22 | 山东矿业学院采矿研究所 | Method for mining on near water-level very thin coal seam manless operating face |
| CN101526001A (en) * | 2008-11-26 | 2009-09-09 | 枣庄矿业（集团）有限责任公司滨湖煤矿 | Comprehensive mining opposite-pull working face coal excavating process for thin coal bed |
| CN101881168A (en) * | 2010-06-29 | 2010-11-10 | 四川达竹煤电(集团)有限责任公司 | Ultra-thin coal seam bottom climbing type comprehensive mechanical mining method |
| CN102120523A (en) * | 2010-01-08 | 2011-07-13 | 兖州煤业股份有限公司 | Slope adjusting device for middle trough of fully-mechanized scraper conveyor for thin seam |
-
2015
- 2015-05-06 CN CN201510226000.8A patent/CN104912557A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1645553A1 (en) * | 1989-05-15 | 1991-04-30 | Донецкий политехнический институт | Method of mining outburst-prone coal seams |
| RU2077673C1 (en) * | 1992-11-23 | 1997-04-20 | Игорь Львович Машковцев | Method for excavating graphite from a thin steeply dipping sheet deposit |
| CN1229165A (en) * | 1998-03-18 | 1999-09-22 | 山东矿业学院采矿研究所 | Method for mining on near water-level very thin coal seam manless operating face |
| CN101526001A (en) * | 2008-11-26 | 2009-09-09 | 枣庄矿业（集团）有限责任公司滨湖煤矿 | Comprehensive mining opposite-pull working face coal excavating process for thin coal bed |
| CN102120523A (en) * | 2010-01-08 | 2011-07-13 | 兖州煤业股份有限公司 | Slope adjusting device for middle trough of fully-mechanized scraper conveyor for thin seam |
| CN101881168A (en) * | 2010-06-29 | 2010-11-10 | 四川达竹煤电(集团)有限责任公司 | Ultra-thin coal seam bottom climbing type comprehensive mechanical mining method |
Non-Patent Citations (1)
| Title |
|---|
| 陈显坤等: "薄煤层综合机械化开采成套设备研究及应用", 《中州煤炭》 * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298495B (en) * | 2015-11-06 | 2017-05-17 | 广州日滨科技发展有限公司 | Coal mining technology debugging method and device |
| CN105298495A (en) * | 2015-11-06 | 2016-02-03 | 广州日滨科技发展有限公司 | Coal mining technology debugging method and device |
| CN105422098A (en) * | 2015-11-20 | 2016-03-23 | 西安科技大学 | Extremely thin coal rock bed slide saw type mechanized mining method |
| CN105507902A (en) * | 2015-12-07 | 2016-04-20 | 平顶山天安煤业股份有限公司 | Graded mining method of coal-rock co-mining working face |
| CN105507902B (en) * | 2015-12-07 | 2018-04-03 | 平顶山天安煤业股份有限公司 | Coal petrography is classified recovery method with mining face |
| CN105422156A (en) * | 2015-12-11 | 2016-03-23 | 北京天地玛珂电液控制系统有限公司 | Automatic pushing-rolling control method for thin coal seam |
| CN105422156B (en) * | 2015-12-11 | 2019-03-08 | 北京天地玛珂电液控制系统有限公司 | A kind of girdle automation pushing and sliding control method |
| CN105863639A (en) * | 2016-05-27 | 2016-08-17 | 安徽理工大学 | Coal-mining method of loose coal seam |
| CN106948814B (en) * | 2017-03-17 | 2019-04-05 | 中国神华能源股份有限公司 | A kind of coal excavation apparatus and coal-mining method |
| CN106948814A (en) * | 2017-03-17 | 2017-07-14 | 中国神华能源股份有限公司 | A kind of coal excavation apparatus and coal-mining method |
| CN107542466A (en) * | 2017-08-18 | 2018-01-05 | 天地科技股份有限公司 | A kind of suspension type coal-winning machine girdle automatically working face coordinated mode |
| CN107701216A (en) * | 2017-08-30 | 2018-02-16 | 中国矿业大学 | A kind of control device and control method of coal-face linearity |
| CN110685690A (en) * | 2019-08-20 | 2020-01-14 | 北京龙软科技股份有限公司 | Inclination adjusting control method for fully mechanized mining face of medium-thickness inclined coal seam |
| CN110630266A (en) * | 2019-08-27 | 2019-12-31 | 四川川煤华荣能源股份有限公司 | Method for enabling large-dip-angle fully-mechanized coal mining face to cross fault |
| CN110630266B (en) * | 2019-08-27 | 2022-01-25 | 四川川煤华荣能源股份有限公司 | Method for enabling large-dip-angle fully-mechanized coal mining face to cross fault |
| CN111119896A (en) * | 2019-12-24 | 2020-05-08 | 中国矿业大学(北京) | Bauxite mining method |
| CN111677504A (en) * | 2020-06-19 | 2020-09-18 | 北京中矿创新联盟能源环境科学研究院 | Coal mining device and coal mining system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104912557A (en) | High-efficiency thin coal seam complete-set coal mining equipment and coal mining method | |
| CN104612693B (en) | Continuous coal-mining technology for strip mine | |
| CN102352769A (en) | Integrated mining method for commonly mining coal and gas of high mine | |
| CN103104260B (en) | Under complex geological condition, comprehensive-machine is to hand-pulled noodles coal-mining method | |
| CN105626071A (en) | Mining method for gently inclined thin ore body | |
| CN104358574B (en) | The horizontal room-and-pillar stoping of gently inclined orebody | |
| CN105715272A (en) | Fully-mechanized caving mining method for lower slice of ultra-thick hard coal | |
| CN106050228A (en) | Three-drum shearer and shearing method of ultra-thick seams | |
| CN110714760B (en) | Mining method for coal-aluminum symbiotic layered induction collaborative mining | |
| CN105464700A (en) | Method for determining length of filling segment of fully mechanized mining and filling mixed mining working face | |
| CN104500069A (en) | Continuous coal mining machine top-coal mining process for extremely-thick coal seam bound coal | |
| CN109915197A (en) | A kind of method that rock gangway km directional long borehole substitution middle part bottom pumping rock gangway is taken out at bottom | |
| CN108825237A (en) | A kind of special thick coal continuous milling machine divides excavating technology with the layering combined is filled | |
| CN106761902A (en) | A kind of stereo synthesis pressure relief gas pumping mining method suitable for soft rock protective coat extracted | |
| CN105240016A (en) | Filling mining method with gentle-dip lamellar jade ore block cutting and strip dragging | |
| CN109026000A (en) | A kind of steep-inclined thick coal seam is bowed pseudo- tiltedly arc inclined cuting layering longwall top coal caving method | |
| CN105134212A (en) | Method for ensuring fully-mechanized top coal caving recovery rate of three-soft thick coal seam roadway tunneling along top | |
| CN110359910B (en) | Fully mechanized caving high-level filling mining method for thick coal seam strips under coal mine railway | |
| CN104533417A (en) | Dual-system two-hardness short-wall coal seam mining method | |
| CN101858216A (en) | Method for recovering stagnant coal pillars left by breast type coal mining method | |
| CN101798935A (en) | Transverse self-moving combined suspension hydraulic bracket | |
| CN112901170B (en) | Coal-aluminum joint mining method for shared working face | |
| CN205591961U (en) | Newly -built high blow mine in mountain area is worn layer and is taken out in advance and speedy drivage system | |
| CN105064994A (en) | Onboard continuous grooving pressure relief coal mining equipment and onboard continuous grooving pressure relief coal mining method | |
| CN110005412B (en) | Mining method for stoping inclined extremely-thin ore vein |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150916 |
|
| RJ01 | Rejection of invention patent application after publication |