CN101967993B - Underground gangue sorting and filling system and method - Google Patents
Underground gangue sorting and filling system and method Download PDFInfo
- Publication number
- CN101967993B CN101967993B CN 201010506018 CN201010506018A CN101967993B CN 101967993 B CN101967993 B CN 101967993B CN 201010506018 CN201010506018 CN 201010506018 CN 201010506018 A CN201010506018 A CN 201010506018A CN 101967993 B CN101967993 B CN 101967993B
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- belt conveyor
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- gangue
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- conveyer
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000003245 coal Substances 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000012216 screening Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 7
- 238000005065 mining Methods 0.000 claims description 7
- 238000013467 fragmentation Methods 0.000 claims description 6
- 238000006062 fragmentation reaction Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000003916 acid precipitation Methods 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 230000002269 spontaneous effect Effects 0.000 abstract description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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Abstract
The invention relates to an underground gangue sorting and filling system and method. The system comprises a multi-stage belt conveyer, a toothed roll crusher, a strong vibration grading screen, a selective crushing type coal gangue separator, a spiral grading screen, a double roll crusher, a continuous strong stirrer, a bottom groove belt conveyer and a conveying pump, wherein the toothed roll crusher and the selective crushing type coal gangue separator are used for carrying out primary crushing and selective crushing, and the strong vibration grading screen and the spiral grading screen are used for screening in two stages; the screened coal is conveyed into a coal bunker through the bottom groove conveyer; and the screened gangue is finely crushed and then conveyed into the continuous strong stirrer to be stirred with water to form thick materials, and the thick materials are conveyed to the underground goaf to be filled through the conveying pump. The system can realize acquisition operation under the complex conditions of buildings, water bodies, railways and the like, improves the recovery rate of the coal, simultaneously reduces the cost of exploitation of the gangue, aboveground separation of the coal gangue and the like, reduces the floor space of the gangue, and reduces the geological disasters such as spontaneous combustion, acid rain and the like caused by stacking the gangue on the ground.
Description
Technical field
The present invention relates to downhole gangue sorting filling system and method, it is higher and need the gangue sorting backfill in mining face under mine goaf, colliery to be particularly useful for percentage of shale content such as alternate heading.
Technical background
Mineral resources are treasures of human society; Be the human society indispensable material base of depending on for existence and development, but the excessive exploitation of mineral resources can cause the original ecological environment in mine to change inevitably: as vegetation deterioration, barren rock Cheng Shan, underground water descend, take good farmland, river course change move, surface subsidence, water pollution, effluent discharge and a large amount of mine tailing stackings etc.And a large amount of spoils that coal production is discharged are piled into hillock, have taken a large amount of farmlands and greenery patches, form the face of land and pollute.In addition, spoil transport to ground from the down-hole and charges from the surface transportation to the down-hole, need to drop into a large amount of funds.Therefore, implement downhole gangue filling not only minimizing downhole gangue transportation lifting capacity, alleviate mining assistant conveyance pressure, and can reduce ground spoil occupation of land, the conservation of nature environment, social benefit has good prospects.
It is in the down-hole bastard coal compound under adopting to be carried out selective crushing that downhole gangue separates filling technique; Utilize the nonhomogeneous hardness of bastard coal, identical impact force makes the lower coarse coal of hardness be broken into fritter, and the bulk spoil keeps original lumpiness basically; Separate broken coal and broken spoil through sieve then; Promoted through transportation system and go up well, and spoil is broken for particle and the micro mist that thickness does not wait in the down-hole by certain grating, and fully mix; But constitute the thick material of a kind of pump plastic flowing, be pumped to the goaf through pipeline and carry out filling.If dash at broken spoil and to participate in certain proportion cement or flyash can increase the intensity after charges solidify, can be used for the method for mining by the way of filling, carry out three unders in coal mining, improve coal recovery rate.
Summary of the invention
The objective of the invention is to overcome the weak point in the prior art, a kind of downhole gangue pumping separation filling system and method that realizes the bastard coal detached job in the down-hole simple in structure, easy to operate, low-cost, direct is provided.
Downhole gangue sorting filling system of the present invention; Comprise belt conveyor, toothed roll crusher, powerful vibrations classifying screen, select crushing type gangue separator, spiral grading sieve, oppositely rolling roller crusher, continuous strong stirring machine, kerve band conveyer, delivery pump; Described belt conveyor is the multi-stage, belt conveyer; Described toothed roll crusher, powerful vibrations classifying screen, selection crushing type gangue separator, spiral grading sieve, oppositely rolling roller crusher, continuous strong stirring machine are located at multi-stage, belt conveyer junction respectively successively; It is reverse through selecting the kerve band conveyer of crushing type gangue separator and powerful vibrations classifying screen below that the below of spiral grading sieve is provided with conveyer belt, and continuous strong stirring machine connects the delivery pump that links to each other with conveying pipeline down; Described multi-stage, belt conveyer is 5 grades.
Downhole gangue sorting placement method of the present invention: the bastard coal compound that underground mining comes out is through the multi-stage, belt conveyor delivery; Carry out one-level fragmentation and selective crushing through toothed roll crusher and selection crushing type gangue separator earlier, and carry out the two-stage screening through brute force vibrations classifying screen and spiral grading sieve; The coal that sieves out through the kerve conveyor delivery to coal bunker; The spoil that sieves out carries out the careful fragmentation of secondary through oppositely rolling roller crusher again; Careful level spoil behind the two-stage crushing is sent to adds entry in the continuous strong stirring machine and stir, through delivery pump the spoil thick matter pump is gone out at last, deliver to the goaf of treating filling through transfer pipeline.
Beneficial effect: adopt and vertically arrange the adaptation underworkings; Need not increase other auxiliary digging laneways, the bastard coal compound under adopting carried out selective crushing, utilize the nonhomogeneous hardness of bastard coal in the down-hole; Identical impact force makes the lower coarse coal of hardness be broken into fritter; And the bulk spoil keeps original lumpiness basically, separates broken coal and broken spoil through sieve then, and broken coal is promoted upward well through transportation system; And spoil is broken for particle and the micro mist that thickness does not wait in the down-hole by certain grating, and fully mixes with water, but constitutes the thick material of a kind of pump plastic flowing, is pumped to the goaf through pipeline and carries out filling.This system can be implemented under the building, under the water body, the collection operation under the inferior complex conditions of railway; Improve the rate of recovery of coal; Reduce spoil simultaneously and gone out expenses such as well, the aboveground separation of bastard coal, reduced geological disasters such as spoil ground floor space and spontaneous combustion that the spoil ground stacking caused, acid rain simultaneously.Directly carry out waste filling and not only reduce downhole gangue transportation lifting capacity, alleviate mining assistant conveyance pressure, and can reduce ground spoil occupation of land in the down-hole, the conservation of nature environment, social benefit has good prospects.This system compact, method are simple to operate, are convenient to safeguard, it is good that bastard coal separates filling effect, and running cost is low, has practicality widely.
Description of drawings
Accompanying drawing is that downhole gangue of the present invention separates the filling system sketch map.
Among the figure: 1-toothed roll crusher, 2-first order belt conveyor, the powerful vibrations of 3-classifying screen, 4-second level belt conveyor; 5-selects crushing type gangue separator, 6-third level belt conveyor, 7-spiral grading sieve; 8-kerve conveyer, 9-fourth stage belt conveyor, 10-oppositely rolling roller crusher; 11-level V belt conveyor, 12-continuous strong stirring machine, 13-delivery pump.
The specific embodiment
Below in conjunction with accompanying drawing one embodiment of the present of invention are done further to describe:
Shown in the accompanying drawing, downhole gangue separate filling system mainly by the multi-stage, belt conveyer, respectively be located at multi-stage, belt conveyer junction toothed roll crusher 1, powerful vibrations classifying screen 3, select crushing type gangue separator 5, spiral grading sieve 7, oppositely rolling roller crusher 10, continuous strong stirring machine 12 to form; The multi-stage, belt conveyer is divided into first order belt conveyor 2, second level belt conveyor 4, third level belt conveyor 6, fourth stage belt conveyor 9, level V belt conveyor 11; Toothed roll crusher 1 is located at the afterbody of first order belt conveyor 2; The feeding mouth of powerful vibrations classifying screen 3 is connected on the front portion of first order belt conveyor 2; The afterbody of second level belt conveyor 4 is connected on the discharging opening below of powerful vibrations classifying screen 3; The feeding mouth of selection crushing type gangue separator 5 is connected on the front portion of second level belt conveyor 4; The afterbody of third level belt conveyor 6 is connected on the discharging opening below of selecting crushing type gangue separator 5; The feeding mouth of spiral grading sieve 7 is connected on the front portion of third level belt conveyor 6; The afterbody of fourth stage belt conveyor 9 is connected on the discharging opening below of spiral grading sieve 7, and it is reverse through selecting the kerve band conveyer 8 of crushing type gangue separator 5 and powerful vibrations classifying screen 3 belows that the discharging opening below of spiral grading sieve 7 also is connected with conveyer belt, and kerve conveyer 8 adopts kerve drag conveyor or kerve belt conveyor; The feeding mouth of oppositely rolling roller crusher 10 is connected on the front portion of fourth stage belt conveyor 9; The afterbody of level V belt conveyor 11 is connected on the discharging opening below of oppositely rolling roller crusher 10; Continuous strong stirring machine 12 is connected on the front portion of level V belt conveyor 11, and continuous strong stirring machine connects the delivery pump 13 that links to each other with conveying pipeline 12 times.
Downhole gangue of the present invention separates placement method: at first carry out the one-level fragmentation with 1 pair of down-hole of toothed roll crusher greater than the bastard coal compound of 80mm; Being delivered to powerful vibrations classifying screen 3 through first order belt conveyor 2 afterwards once sieves; Sieving out to be delivered to by second level belt conveyor 4 greater than the bastard coal compound of 40mm selects crushing type gangue separator 5 to carry out selective crushing; Be delivered to spiral grading sieve 7 through third level belt conveyor 6 afterwards and carry out the screening second time; Sieving out for the second time spoil greater than 40mm is delivered to oppositely rolling roller crusher 10 by fourth stage belt conveyor 9 and carries out the careful fragmentation in the second level; Be delivered in the continuous strong stirring machine 12 by level V belt conveyor 11 after being crushed to whole spoils below the 30mm; Add water and stir, pump into carrier pipe by delivery pump 13 after stirring into the thick material that flows, deliver to band and fill the goaf through the carrier pipe thick material spoil that will flow; The coal cinder less than 40mm that brute force vibrations classifying screen 3 and 7 screenings of spiral grading sieve are got off is delivered to shaft coal pocket through kerve drag conveyor or the kerve belt conveyor that is located at the bottom, is promoted to well head through lifting means again.
Claims (3)
1. downhole gangue sorting filling system; Comprise belt conveyor, toothed roll crusher (1), powerful vibrations classifying screen (3), select crushing type gangue separator (5), spiral grading sieve (7), oppositely rolling roller crusher (10), continuous strong stirring machine (12), kerve conveyer (8), delivery pump (13); It is characterized in that: described belt conveyor is first order belt conveyor (2), second level belt conveyor (4), third level belt conveyor (6), fourth stage belt conveyor (9), level V belt conveyor (11); Described toothed roll crusher (1) is located at the afterbody of first order belt conveyor (2); The afterbody of second level belt conveyor (4) is connected on the discharging opening below of powerful vibrations classifying screens (3); The feeding mouth of selection crushing type gangue separator (5) is connected on the front portion of second level belt conveyor (4); The afterbody of third level belt conveyor (6) is connected on the discharging opening below of selecting crushing type gangue separator (5); Spiral grading sieve (7) feeding mouth is connected on the front portion of third level belt conveyor (6); The afterbody of fourth stage belt conveyor (9) is connected on the discharging opening below of spiral grading sieve (7); The feeding mouth of oppositely rolling roller crusher (10) is connected on the front portion of fourth stage belt conveyor (9), and the afterbody of level V belt conveyor (11) is connected on the discharging opening below of oppositely rolling roller crusher (10), and continuous strong stirring machine (12) is connected on the front portion of level V belt conveyor (11); It is reverse through selecting the kerve conveyer (8) of crushing type gangue separator (5) and powerful vibrations classifying screens (3) below that the below of spiral grading sieve (7) is provided with conveyer belt, and continuous strong stirring machine (12) connects the delivery pump (13) that links to each other with conveying pipeline down.
2. downhole gangue sorting filling system according to claim 1 is characterized in that: described kerve conveyer (8) is kerve drag conveyor or kerve belt conveyor.
3. downhole gangue sorting placement method; It is characterized in that: the bastard coal compound that underground mining comes out is through the multi-stage, belt conveyor delivery; Earlier carry out the one-level fragmentation through toothed roll crusher (1); Being delivered to powerful vibrations classifying screens (3) through first order belt conveyor (2) afterwards once sieves; The bastard coal compound that sieves out is delivered to by second level belt conveyor (4) selects crushing type gangue separator (5) to carry out selective crushing, is delivered to spiral grading sieve (7) through third level belt conveyor (6) afterwards and carries out the screening second time, and the coal that sieves out is delivered to coal bunker through kerve conveyer (8); The spoil that sieves out for the second time is delivered to oppositely rolling roller crusher (10) through fourth stage belt conveyor (9) and carries out the careful fragmentation of secondary; Careful level spoil behind the two-stage crushing is delivered to by level V belt conveyor (11) adds entry in the continuous strong stirring machine (12) and stir; The spoil that will stir into the thick material that flows through delivery pump (13) at last pumps, and delivers to the goaf of treating filling through transfer pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010506018 CN101967993B (en) | 2010-09-30 | 2010-09-30 | Underground gangue sorting and filling system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010506018 CN101967993B (en) | 2010-09-30 | 2010-09-30 | Underground gangue sorting and filling system and method |
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| Publication Number | Publication Date |
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| CN101967993A CN101967993A (en) | 2011-02-09 |
| CN101967993B true CN101967993B (en) | 2012-09-05 |
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| CN 201010506018 Expired - Fee Related CN101967993B (en) | 2010-09-30 | 2010-09-30 | Underground gangue sorting and filling system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014131323A1 (en) * | 2013-02-28 | 2014-09-04 | 中国矿业大学 | Method and device for using gangue aboveground to backfill mine goaf |
| CN111921604A (en) * | 2020-07-15 | 2020-11-13 | 中国矿业大学 | Plasma crushing device and method for assisting underground gangue filling |
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| CN102128051A (en) * | 2011-03-11 | 2011-07-20 | 中国矿业大学 | Method for filling gob area with attal in coal mine underhole |
| CN102162364B (en) * | 2011-03-21 | 2012-12-12 | 山东新阳能源有限公司 | Layout method for underground dense-medium shallow-slot coal preparation in coal mine |
| CN102580836B (en) * | 2012-02-29 | 2013-09-25 | 深圳市新星轻合金材料股份有限公司 | Equipment used for crushing fluorite tailings, crushing method and fluorite flotation method |
| CN102865101B (en) * | 2012-09-20 | 2015-06-17 | 河北煤炭科学研究院 | Filling method and system of coal mine goaf |
| CN103133031B (en) * | 2013-02-28 | 2015-05-20 | 中国矿业大学 | Underground coal and gangue separation, conveying and filling method and equipment |
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Cited By (3)
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| CN111921604A (en) * | 2020-07-15 | 2020-11-13 | 中国矿业大学 | Plasma crushing device and method for assisting underground gangue filling |
| CN111921604B (en) * | 2020-07-15 | 2022-03-04 | 中国矿业大学 | Plasma crushing device and method for assisting underground gangue filling |
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