CN101670310A - Dense-medium shallow-groove separating and waste-rock exhausting system used under coal mine - Google Patents
Dense-medium shallow-groove separating and waste-rock exhausting system used under coal mine Download PDFInfo
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- CN101670310A CN101670310A CN200910187532A CN200910187532A CN101670310A CN 101670310 A CN101670310 A CN 101670310A CN 200910187532 A CN200910187532 A CN 200910187532A CN 200910187532 A CN200910187532 A CN 200910187532A CN 101670310 A CN101670310 A CN 101670310A
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Abstract
The invention relates to a dense-medium shallow-groove separating and waste-rock exhausting system used under coal mine. A raw-coal belt conveyer is arranged on the feeding end side of a roller screen; a fine-cold belt conveyer arranged below the roller screen; a lump-coal belt conveyer is arranged between the discharging end of materials on the roller screen and a feeding end of a dense-medium shallow-groove separator; the dense-medium shallow-groove separator is connected with a clean-coal medium-removing scraping plate conveyor through an overflow groove; a waste-rock medium-removing scraping plate conveyor is arranged below the dense-medium shallow-groove separator; the clean-coal medium-removing scraping plate conveyor is connected with a clean-coal belt conveyer; the clean-coal beltconveyer is connected with the fine-cold belt conveyer which is arranged below the roller screen; the waste-rock medium-removing scraping plate conveyor is connected with a first waste-rock belt conveyer; the first waste-rock belt conveyer is connected with a second waste-rock belt conveyer; a qualified-medium barrel is connected with the dense-medium shallow-groove separator; and a diluted-mediumbarrel is connected with a slag slurry pump and a magnetic separator. The invention can greatly reduce the ineffective conveying volume of the waste rock in the mine, improve the producion rate, lower the operating cost and avoid causing pollution to the environment.
Description
Technical field
The invention relates to a kind of waste stone exhaust system of the industry of mining, and relates to a kind of down-hole coal excavation system that is used for particularly, the system of sorting cleaned coal and discharge refuse.
Background technology
Along with improving constantly of mine maximization and mining mechanization degree, especially the top coal caving broad application causes working face tomography or coal seam roof and floor and dirt band up and down to be sneaked in a large number in the coal streamline, and the visible refuse amount increases in the raw coal thereby caused.And in the coal mining activity process, run-of-mine coal (ROM coal) does not generally all process in the down-hole, but directly enters shaft coal pocket, risen to by elevator system and carry out the discharge refuse operation again after aboveground, and the spoil of discharging also need be established special stacking place.Obviously, the transportation of spoil belongs to the invalid transportation of mine in the coal streaming system of down-hole, and this part invalid freight volume can reduce the actual production capacity of mine greatly.With bulk spoil amount in the run-of-mine coal (ROM coal) is 12% calculating, and for the mine that yearly productive capacity is 5,000,000 tons, annual invalid freight volume can reach 600,000 tons, is equivalent to the annual production of a medium-sized mine.Not only cause the waste of the energy, and go up the spoil that from coal, sub-elects behind the well and both taken and stack the place, can pollute environment again.
In addition, have at present and adopt the trial of movable-sieve jig at the down-hole discharge refuse, but moving screening to select efficient be about 80-85%, sorting granularity lower limit can only reach 50mm, therefore is subjected to certain restriction on the scope of application.
Summary of the invention
In order to address the above problem, the invention provides a kind of efficiency of separation height, and can significantly reduce the invalid freight volume of mine, boosts productivity the dense-medium shallow-groove separating and waste-rock exhausting system used under coal mine that cuts operating costs and avoid environment is polluted.
To achieve these goals, the technical scheme that the invention is adopted is: a kind of dense-medium shallow-groove separating and waste-rock exhausting system used under coal mine is characterized in that comprising run-of-mine coal (ROM coal) adhesive tape conveyor, roller picker, lump coal adhesive tape conveyor, sieve smalls adhesive tape conveyor, dense-medium shallow-tank separator, spoil de-mediated scratch board conveyor, cleaned coal de-mediated scratch board conveyor, the first spoil adhesive tape conveyor, choosing back cleaned coal adhesive tape conveyor, qualified medium bucket, rare medium bucket, magnetic separator, slag stock pump, the second spoil adhesive tape conveyor down;
The run-of-mine coal (ROM coal) adhesive tape conveyor is installed in feeding end one side of roller picker, the smalls adhesive tape conveyor is installed in the below of roller picker under the sieve, between the oversize discharge end of roller picker and the feeding mouth of dense-medium shallow-tank separator the lump coal adhesive tape conveyor is set, dense-medium shallow-tank separator joins by overflow launder and cleaned coal de-mediated scratch board conveyor, spoil de-mediated scratch board conveyor is installed in the below of dense-medium shallow-tank separator, cleaned coal de-mediated scratch board conveyor joins with choosing back cleaned coal adhesive tape conveyor, the smalls adhesive tape conveyor joins choosing back cleaned coal adhesive tape conveyor with sieving down, the spoil de-mediated scratch board conveyor and the first spoil adhesive tape conveyor join, the first spoil adhesive tape conveyor and the second spoil adhesive tape conveyor join, the qualified medium bucket is connected with dense-medium shallow-tank separator by pipeline, and rare medium bucket is connected with magnetic separator with the slag stock pump respectively by pipeline.
The beneficial effect of the invention is:
1, enhances productivity.Under employing the invention can directly just be screened spoil in the down-hole, the spoil in the run-of-mine coal (ROM coal) was discharged before gug, and the spoil of selecting is directly used in down-hole whitewashing or goaf backfilling material.Therefore can significantly reduce the invalid lifting freight volume of mine, enhance productivity.Stop the bulk spoil simultaneously to promoting the harm of transportation system, increase the actual production capacity of mine.
2, cut operating costs.Because the spoil in the run-of-mine coal (ROM coal) is gug not, minimizes transport costs, and cuts operating costs.
3, protection environment.Because spoil is gug not, can save aboveground spoil and stack the place, avoid occupying cultivated land behind the spoil gug; Avoid the dieseling of hillock, fundamentally stop CO
2And SO
2Discharge capacity, avoid environment is polluted.
4, effectively utilize discarded object.The spoil of discharging can be used for the underground goaf backfill, and to prevent surface collapse, the aggregate that also can be used as the down-hole gunning concrete uses, and reduces the roadway construction maintenance cost, thereby accomplishes twice laid.
5, when the raw coal treating capacity is inhomogeneous, often the amount of washing is little to influence product quality with coal separation efficient is low to movable-sieve jig because of going into, and easily runs coal, loses very big.And in the invention, dense-medium shallow-tank separator can adapt to the size variation of going into the amount of washing, and can guarantee product quality, can not cause the generation of running the coal phenomenon again.
6, in the invention, dense-medium shallow-tank separator is by suspension equipment by the density separation material in gravitational field, because separating medium proportion is greater than water (so be called dense media), and can adjust according to the ature of coal that difference requires, so be applicable to the sorting of multiple different trade mark coals.Selected raw meal particle size wide ranges, the applicability that ature of coal is changed is strong, also can obtain effect preferably to the coal that is easy to argillization.Promptly be applicable to the cleaned coal sorting of 13～300mm particle, the raw coal discharge refuse that also is suitable for 30～400mm particle is handled.And the efficiency of separation of dense-medium shallow-tank separator is up to 95～99%, E
pValue can reach 0.03-0.04, rate of recovery height, and treating capacity is big, suitably adjusts separating density as requested and can obtain desirable high-quality low ash coal charcoal product.Separating density is generally 1.3-2.2g/cm
3, adjustable density is suitable for the selected feed coal of the changeable various washabilitys of spoil content.Operate steadily, noise is little, and accident rate is low.
7, in the invention, owing to be provided with qualified medium bucket and rare medium bucket, the medium in the medium bucket can use repeatedly, saves cost.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is the B-B view of Fig. 1;
Fig. 4 is the C-C view of Fig. 1;
Fig. 5 is the D-D view of Fig. 1.
The specific embodiment
As Fig. 1～shown in Figure 5, a kind of dense-medium shallow-groove separating and waste-rock exhausting system used under coal mine comprises run-of-mine coal (ROM coal) adhesive tape conveyor 1, roller picker 2, lump coal adhesive tape conveyor 3, sieve smalls adhesive tape conveyor 4, dense-medium shallow-tank separator 5, spoil de-mediated scratch board conveyor 6, cleaned coal de-mediated scratch board conveyor 7, the first spoil adhesive tape conveyor 8, choosing back cleaned coal adhesive tape conveyor 9, qualified medium bucket 10, rare medium bucket 11, magnetic separator 12, slag stock pump 13, the second spoil adhesive tape conveyor 14, electric control chamber 21, catch pit 22, water leg 23 and pipeline 24 down;
Run-of-mine coal (ROM coal) adhesive tape conveyor 1 is installed in feeding end one side of roller picker 2, smalls adhesive tape conveyor 4 is installed in the below of roller picker 2 under the sieve, between the oversize discharge end of roller picker 2 and the feeding mouth of dense-medium shallow-tank separator 5 lump coal adhesive tape conveyor 3 is set, dense-medium shallow-tank separator 5 joins by overflow launder 15 and cleaned coal de-mediated scratch board conveyor 7, spoil de-mediated scratch board conveyor 6 is installed in the below of dense-medium shallow-tank separator 5, cleaned coal de-mediated scratch board conveyor 7 joins with choosing back cleaned coal adhesive tape conveyor 9, choosing back cleaned coal adhesive tape conveyor 9 and sieve smalls adhesive tape conveyor 4 down join, the spoil de-mediated scratch board conveyor 6 and the first spoil adhesive tape conveyor 8 join, the first spoil adhesive tape conveyor 8 and the second spoil adhesive tape conveyor 14 join, qualified medium bucket 10 is connected with dense-medium shallow-tank separator 5 by pipeline, and rare medium bucket 11 is connected with magnetic separator 12 with slag stock pump 13 respectively by pipeline.
The operation principle of the invention is: the invention is arranged in each several part in the mine underworkings 20 from top to bottom successively according to the coal flow path direction.Technology is as follows:
Screening: run-of-mine coal (ROM coal) is transported to roller picker 2 (sieve aperture 30mm) through run-of-mine coal (ROM coal) adhesive tape conveyor 1, carries out the prescreening operation, sift out in the run-of-mine coal (ROM coal) greater than the bulk materials of 30mm, screenings is a smalls, and smalls is fallen under the sieve of below on the smalls adhesive tape conveyor 4.
Sorting: the oversize on the roller picker 2 falls on the lump coal adhesive tape conveyor 3 through discharge end, feeds to carry out separation operation in the dense-medium shallow-tank separator 5.By pump the medium in the qualified medium bucket 10 is squeezed in the dense-medium shallow-tank separator 5, dense-medium shallow-tank separator adopts the applicant's patented product ZL200720010033.X " dense-medium shallow-tank separator ".Dense-medium shallow-tank separator is by suspension equipment by the density separation material in gravitational field, and in run-of-mine coal (ROM coal) entered the sorting groove, the cleaned coal come-up that is lower than Media density was discharged with the medium overflow.And the spoil that is higher than Media density sinks and discharged by the scraper plate of transverse movement, and coal is separated with spoil.Because replenishing of rise endlessly MEDIA FLOW and horizontal MEDIA FLOW arranged in the sorting groove, make it to produce on the one hand overflow, the complex media motion stream that is produced by horizontal flow and upwelling has destroyed superposed layer on the other hand, coal is risen more smoothly, has reached separating of coal and spoil.Sub-elect two kinds of products of cleaned coal and spoil.
De-mediated: cleaned coal and medium flow on the cleaned coal de-mediated scratch board conveyor 7 by overflow launder 15, spoil sinks and falls spoil de-mediated scratch board conveyor 6 by the scraper plate discharge of transverse movement, cleaned coal and spoil transport through the scraper plate de-mediated respectively, be installed in the double-edged fine-toothed comb of scraper plate lower floor, play the effect of de-mediated, medium falls in the water leg below the double-edged fine-toothed comb, flows into by the road in catch pit 22 and the water leg 23.
Cleaned coal: the cleaned coal after the de-mediated falls on the back cleaned coal adhesive tape conveyor 9 of choosing, falls on the following smalls adhesive tape conveyor 4 of sieve well in the lifting at last.Spoil after the de-mediated falls on the first spoil adhesive tape conveyor, falls at last on the second spoil adhesive tape conveyor, does not promote well, and directly in down-hole treatment.Be used as the material of filling the goaf, or use as the aggregate of down-hole building concrete.
Medium reclaims: in the de-mediated step, enter the medium in catch pit and the water leg, squeeze in rare medium bucket 11 with pump earlier.By slag stock pump 13 the rare medium in rare medium bucket 11 is squeezed in the magnetic separator 12 again, after magnetic separator 12 magnetic separation, recovering medium.Magnetic concentrate is squeezed in the qualified medium bucket 10, and recycling, magnetic tailing is sneaked into and is discharged or be recovered to gug in the coal stream in the spoil.
2 places are provided with bypass at roller picker, when the invention waste stone exhaust system breaks down, go into coal separation and can transport from bypass, guarantee the colliery ordinary production.
Claims (1)
1, a kind of dense-medium shallow-groove separating and waste-rock exhausting system used under coal mine is characterized in that comprising run-of-mine coal (ROM coal) adhesive tape conveyor (1), roller picker (2), lump coal adhesive tape conveyor (3), sieve smalls adhesive tape conveyor (4), dense-medium shallow-tank separator (5), spoil de-mediated scratch board conveyor (6), cleaned coal de-mediated scratch board conveyor (7), the first spoil adhesive tape conveyor (8), choosing back cleaned coal adhesive tape conveyor (9), qualified medium bucket (10), rare medium bucket (11), magnetic separator (12), slag stock pump (13), the second spoil adhesive tape conveyor (14) down;
Run-of-mine coal (ROM coal) adhesive tape conveyor (1) is installed in feeding end one side of roller picker (2), smalls adhesive tape conveyor (4) is installed in the below of roller picker (2) under the sieve, lump coal adhesive tape conveyor (3) is set between the feeding mouth of the oversize discharge end of roller picker (2) and dense-medium shallow-tank separator (5), dense-medium shallow-tank separator (5) joins by overflow launder (15) and cleaned coal de-mediated scratch board conveyor (7), spoil de-mediated scratch board conveyor (6) is installed in the below of dense-medium shallow-tank separator (5), cleaned coal de-mediated scratch board conveyor (7) joins with choosing back cleaned coal adhesive tape conveyor (9), smalls adhesive tape conveyor (4) joins choosing back cleaned coal adhesive tape conveyor (9) with sieving down, spoil de-mediated scratch board conveyor (6) joins with the first spoil adhesive tape conveyor (8), the first spoil adhesive tape conveyor (8) joins with the second spoil adhesive tape conveyor (14), qualified medium bucket (10) is connected with dense-medium shallow-tank separator (5) by pipeline, and rare medium bucket (11) is connected with magnetic separator (12) with slag stock pump (13) respectively by pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910187532A CN101670310A (en) | 2009-09-22 | 2009-09-22 | Dense-medium shallow-groove separating and waste-rock exhausting system used under coal mine |
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|---|---|---|---|
| CN200910187532A CN101670310A (en) | 2009-09-22 | 2009-09-22 | Dense-medium shallow-groove separating and waste-rock exhausting system used under coal mine |
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| CN101670310A true CN101670310A (en) | 2010-03-17 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905189A (en) * | 2010-08-19 | 2010-12-08 | 刘峰 | Method for realizing underground separation of raw coal |
| CN103567056A (en) * | 2012-08-06 | 2014-02-12 | 冀中能源股份有限公司 | Downhole jigging and gangue discharging method |
| CN105983478A (en) * | 2015-02-03 | 2016-10-05 | 山东泰山能源有限责任公司翟镇煤矿 | Underground coal and gangue separation system and coal and gangue separation method |
| CN107413677A (en) * | 2017-09-14 | 2017-12-01 | 中煤能源研究院有限责任公司 | Intelligent robot underground waste stone exhaust system |
| CN107617552A (en) * | 2017-09-14 | 2018-01-23 | 中煤能源研究院有限责任公司 | The wide grade intelligence dry separation craft method for arranging of underground coal mine |
| CN107755283A (en) * | 2017-10-26 | 2018-03-06 | 天津美腾科技有限公司 | Underground coal mine dry separation waste rock discharge device and technique |
| CN111185405A (en) * | 2020-04-09 | 2020-05-22 | 天津美腾科技股份有限公司 | Underground dry separation integrated system and underground separation and transportation production line |
| CN113351362A (en) * | 2021-06-16 | 2021-09-07 | 北京国华技术有限公司 | System and method for removing impurities from raw coal |
-
2009
- 2009-09-22 CN CN200910187532A patent/CN101670310A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905189A (en) * | 2010-08-19 | 2010-12-08 | 刘峰 | Method for realizing underground separation of raw coal |
| CN101905189B (en) * | 2010-08-19 | 2012-10-31 | 北京圆之翰煤炭工程设计有限公司 | Method for realizing underground separation of raw coal |
| CN103567056A (en) * | 2012-08-06 | 2014-02-12 | 冀中能源股份有限公司 | Downhole jigging and gangue discharging method |
| CN105983478A (en) * | 2015-02-03 | 2016-10-05 | 山东泰山能源有限责任公司翟镇煤矿 | Underground coal and gangue separation system and coal and gangue separation method |
| CN107413677A (en) * | 2017-09-14 | 2017-12-01 | 中煤能源研究院有限责任公司 | Intelligent robot underground waste stone exhaust system |
| CN107617552A (en) * | 2017-09-14 | 2018-01-23 | 中煤能源研究院有限责任公司 | The wide grade intelligence dry separation craft method for arranging of underground coal mine |
| CN107755283A (en) * | 2017-10-26 | 2018-03-06 | 天津美腾科技有限公司 | Underground coal mine dry separation waste rock discharge device and technique |
| CN111185405A (en) * | 2020-04-09 | 2020-05-22 | 天津美腾科技股份有限公司 | Underground dry separation integrated system and underground separation and transportation production line |
| CN113351362A (en) * | 2021-06-16 | 2021-09-07 | 北京国华技术有限公司 | System and method for removing impurities from raw coal |
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Application publication date: 20100317 |