CN101215976B - Down-hole gangue pump packing system and method - Google Patents
Down-hole gangue pump packing system and method Download PDFInfo
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- CN101215976B CN101215976B CN2008100194942A CN200810019494A CN101215976B CN 101215976 B CN101215976 B CN 101215976B CN 2008100194942 A CN2008100194942 A CN 2008100194942A CN 200810019494 A CN200810019494 A CN 200810019494A CN 101215976 B CN101215976 B CN 101215976B
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- waste rock
- filling
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- secondary rod
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000012856 packing Methods 0.000 title claims description 12
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 239000002699 waste material Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 7
- 238000013467 fragmentation Methods 0.000 claims description 6
- 238000006062 fragmentation reaction Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 230000032258 transport Effects 0.000 claims description 2
- 238000005065 mining Methods 0.000 abstract description 18
- 239000003245 coal Substances 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000004568 cement Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000010878 waste rock Substances 0.000 abstract 10
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 230000002269 spontaneous effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 13
- 238000011161 development Methods 0.000 description 8
- 230000018109 developmental process Effects 0.000 description 8
- 238000005429 filling process Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
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- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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Abstract
The invention provides an underground waste rock pumping and filling system and a method thereof, and is particularly applicable to backfilling of coal mine underground working face goaf and coal mining under building, railway and water body. The invention adopts a system consisting of a waste rock feeding machine, a belt conveyer, a secondary toothed roll crusher, a high power liquid agitator and a delivery pump to directly crush underground waste rock and to feed the waste rock into the agitator; water is added to the waste rock before the mixture is beaten; waste rock of different fine grades is made into liquid thick material, and is pumped into old galleries through pipelines for filling; without needing excavated galleries beside a main gallery, underground long distance conveyance can be achieved. If cement of proper proportion is added in the crushed waste rock, the strength of the solidified filling can be added. The filling can be used for the filling mining method to mine coal under building, railway and water body, thus improving the coefficient of recovery of coal. The structure of the system is compact, and the method is simple with good results. The invention is economical and practical, and reduces the problems of transportation of waste rock above ground and underground, the floor space of the waste rock transported on the ground and spontaneous combustion of the waste rock piled on the ground.
Description
Technical field
The present invention relates to down-hole gangue pump packing system and method, be particularly useful for the backfill of mining face under mine goaf, colliery and railways and water-bodies.
Background technology
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.Therefore, make the mine solid waste discharging and goaf have not been key subjects anxious to be researched and solved by filling effectively earthward as far as possible.
Closely during the last ten years, the country of some mining industry prosperities all is devoted to research and develop efficient filling technique, uses mining with stowing technology and then reaches the purpose that improves resource efficiency, protection distant view resource and conservation of nature environment to satisfy to widely popularize.
Four developing stage have all been experienced in the development of filling in mine technology both at home and abroad, but domestic development is than external hysteresis 10～20 years, at after-stage, owing to drawn foreign experience, thereby its gap is progressively dwindled.
Phase I: before the forties in 20th century, be purpose abroad,, mine waste sent into the dead zone, down-hole not understanding fully under the situation of attal character and result of use to handle discarded object.Domestic before the fifties in last century, all be to be the barren rock dry stowing technology of purpose to handle discarded object, barren rock dry stowing mining codes once became one of main mining methods of China at the initial stage fifties.But after 1956, along with the development of actual mining technology, the barren rock dry stowing is low because of its efficient, production capacity is little and labour intensity is big, does not satisfy the needs of actual mining technology development.
Second stage: 40～fifties of 20th century, some mine developments of states such as Australia and Canada have also been used the hydraulic filling technology.From then on really begin to include filling in mine in the mining plan, become an ingredient of mining system, and research has been carried out in casting resin and filling process thereof.This stage mainly is that mine tailing is charged into underground goaf by waterpower, and the transportation concentration of its casting resin is lower, need dewater in a large number at stope.Hydraulic filling technology is just adopted in domestic mine since the sixties.
Phase III: 60～seventies, begin to use and the clear and bright knot filling technique of research and development mine tailing.Because non-cemented fill does not have self-reliance, is difficult to satisfy the needs of the high rate of extraction of mining technology and the low rate of dilution, thereby after hydraulic filling technology is developed and applies, just begin development and adopt the consolidated fill technology.The consolidated fill at domestic initial stage is traditional concrete filling, promptly fully by the requirement of building concrete and technology preparation with carry cemented filling material.
Quadravalence section: 80～nineties of 20th century; development along with mining industry; former filling process can not satisfy the requirement of process for stoping and further reduce the needs of mining cost or environmental protection, thereby has developed new technologies such as high concentration filling technique, paste body filling, piece stone sand plasm glue jointed filling and full mine tailing consolidated fill.After the high concentration filling was meant that casting resin arrives stope, though there is excessive moisture to ooze out, the rate of infiltration of its excessive moisture was very low, change in concentration is slower-kind of filling method.This filling process has seriously restricted and has applied because efficient is low, cost is high, labour intensity is big.
In addition, in coal mining, spoil transported 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 can not only minimizing downhole gangue transportation lifting capacity, alleviate mining assistant conveyance pressure, and can reduce ground spoil floor space, the favourable conservation of nature environment that benefits.
At present, many collieries downhole gangue filling systems of being made up of equipment such as turning over cash machine, transporter, throwing cash machine that adopt with the direct goaf after underground filling is discarded tunnel or coal face hydraulic support of gangue more.But because the spoil conveyer moves constantly outward in the waste filling process in this system requirements filling lane, frame is constantly removed, belt constantly shortens, tail unloads cash point and waste filling portion overlaps, and has influenced production efficiency, has strengthened working strength of workers; In addition, belt is carried spoil, need tunnel a tunnel again on next door, main tunnel, its cost height, and also filling area filling floor is low, dust is big.
Summary of the invention
The objective of the invention is to overcome the weak point in the prior art, provide a kind of simple in structure, filling effect is good, and cost is low, does not need to increase digging laneway, promptly realizes down-hole gangue pump packing system and the method that can carry spoil at a distance.
Down-hole gangue pump packing system of the present invention, comprise that to the cash machine belt conveyor is provided with a secondary rod-toothed crusher between to cash machine and belt conveyor, give the cash machine tilting below waste bin, in the secondary rod-toothed crusher, send the direction of advance of cash to be provided with tramp iron separator for the cash machine; The place ahead of belt conveyor is provided with a powerful liquid mixer, and belt conveyor is tilting between secondary rod-toothed crusher and powerful liquid mixer; Powerful liquid mixer is other to be provided with delivery pump, is connected with the carrier pipe of the thick material spoil that flows on the delivery pump.
Described secondary rod-toothed crusher comprises two groups of gear reduction transmission mechanisms of thickness and two groups of broken discaling rolls up and down.
Down-hole gangue pump packing method of the present invention, transport in the process of spoil for the cash machine, adopt tramp iron separator that spoil is carried out deironing, spoil after the deironing is admitted to and carries out the fragmentation of thickness two-stage in the secondary rod-toothed crusher, spoil after the fragmentation is transported to by belt conveyor and adds water in the powerful liquid mixer and stir, the spoil that stirs into behind the thick material that flows is pumped into carrier pipe through delivery pump, deliver to stowboard by the carrier pipe thick material spoil that will flow.
Down-hole gangue pump packing system of the present invention and method are best suited for the backfill in mining face under mine goaf, colliery.Because fine-graded spoil slurry has rheological behavior, but can constitute the mobile thick material of similar concrete pump plasticity.Adopt down-hole gangue pump packing system, directly downhole gangue is carried out sending into after in small, broken bits and add water in the mixer and stir, the fine-graded spoil of difference is made the thick material that flows, pump into waste and old tunnel by pipeline and carry out filling, next door, main tunnel does not need to increase digging laneway, can realize that the down-hole carries at a distance.Can increase intensity after charges solidify if in broken spoil, participate in certain proportion cement, can be used for the method for mining by the way of filling, carry out railways and water-bodies, improve coal recovery rate.The native system compact conformation, method is simple, and filling effect is good, and spoil need not well, directly in down-hole treatment and utilization, has reduced the pollution of ground hillock to environment, and cost is low, and is economical and practical, has practicality widely.
Description of drawings
Accompanying drawing is downhole gangue filling system figure of the present invention.
Among the figure: the 1-waste bin, 2-gives the cash machine, 3-tramp iron separator, the powerful secondary breaker of 4-, 5-belt conveyor, the powerful liquid mixer of 6-, 7-delivery pump, 8-carrier pipe.
The specific embodiment
The invention will be further described below in conjunction with the embodiment in the accompanying drawing:
Shown in the accompanying drawing, down-hole gangue pump packing system of the present invention is by constituting for cash machine 2, tramp iron separator 3, secondary rod-toothed crusher 4, belt conveyor 5, powerful liquid mixer 6, delivery pump 7 and carrier pipe 8.Give cash machine 2 tilting, low side is located at waste bin 1 below, high-end connection secondary rod-toothed crusher 4, and secondary rod-toothed crusher 4 is by two groups of gear reduction transmission mechanisms of thickness and two groups of broken discaling rolls are formed up and down.On the direction of advance of in secondary rod-toothed crusher 4, sending cash for cash machine 2 tramp iron separator 3 is housed; In small, broken bits by constantly spoil being conveyed into for cash machine 2 to carry out in the secondary rod-toothed crusher 4, secondary rod-toothed crusher 4 connects belt conveyor 5, the place ahead of belt conveyor 5 is connected with powerful liquid mixer 6, belt conveyor 5 is tilting between secondary rod-toothed crusher 4 and powerful liquid mixer 6, constantly material in small, broken bits is sent in the powerful liquid mixer 6 and is stirred; Delivery pump 7 is equipped with on powerful liquid mixer 6 sides, connects the carrier pipe 8 of the thick material spoil that flows on the delivery pump 7.
Down-hole gangue pump packing method of the present invention at first transporting in the process of spoil for cash machine 2, is carried out deironing with 3 pairs of spoils of tramp iron separator; Spoil after the deironing sent into carry out the fragmentation of thickness two-stage in the secondary rod-toothed crusher 4; Spoil after the fragmentation is transported in the powerful liquid mixer 6 by belt conveyor 5, adds water and stirs, and the spoil that stirs into the thick material that flows pumps into carrier pipe 8 through delivery pump 7, delivers to and carries out filling in the waste and old tunnel by the carrier pipe 8 thick material spoil that will flow.
Claims (2)
1. a down-hole gangue pump packing system comprises to cash machine (2), and tramp iron separator (3), belt conveyor (5), secondary rod-toothed crusher (4), secondary rod-toothed crusher (4) comprise two groups of gear reduction transmission mechanisms of thickness and two groups of broken discaling rolls up and down; It is characterized in that: secondary rod-toothed crusher (4) is located between cash machine (2) and the belt conveyor (5), give cash machine (2) tilting in waste bin (1) below, tramp iron separator (3) is located at the direction of advance of sending cash to cash machine (2) in secondary rod-toothed crusher (4); The place ahead of belt conveyor (5) is provided with a powerful liquid mixer (6), and belt conveyor (5) is tilting between secondary rod-toothed crusher (4) and powerful liquid mixer (6); Powerful liquid mixer (6) is other to be provided with delivery pump (7), is connected with the carrier pipe (8) of the thick material spoil that flows on the delivery pump (7).
2. a down-hole gangue pump packing method transports in the process of spoil for cash machine (2), adopts tramp iron separator (3) that spoil is carried out deironing; It is characterized in that: the spoil after the deironing is sent into carried out the fragmentation of thickness two-stage in the secondary rod-toothed crusher (4); Spoil after the fragmentation is transported to powerful liquid mixer (6) Zhong Jiashui by belt conveyor (5) and stirs; The spoil that stirs into behind the thick material that flows is pumped into carrier pipe (8) through delivery pump (7), deliver to stowboard by carrier pipe (8) the thick material spoil that will flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100194942A CN101215976B (en) | 2008-01-17 | 2008-01-17 | Down-hole gangue pump packing system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100194942A CN101215976B (en) | 2008-01-17 | 2008-01-17 | Down-hole gangue pump packing system and method |
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| Publication Number | Publication Date |
|---|---|
| CN101215976A CN101215976A (en) | 2008-07-09 |
| CN101215976B true CN101215976B (en) | 2011-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100194942A Expired - Fee Related CN101215976B (en) | 2008-01-17 | 2008-01-17 | Down-hole gangue pump packing system and method |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967993B (en) * | 2010-09-30 | 2012-09-05 | 江苏中机矿山设备有限公司 | Underground gangue sorting and filling system and method |
| CN102606206B (en) * | 2012-04-01 | 2014-12-10 | 西安建筑科技大学 | Mobile filling method for managing underground gobs |
| CN103306719B (en) * | 2013-06-07 | 2015-05-20 | 中国矿业大学 | Coal mine underground drilling filling and reinforcing device and method |
| CN109595030B (en) * | 2018-12-02 | 2020-06-09 | 河南理工大学 | Multifunctional rapid underground gangue crushing and roadway filling mechanized device |
| CN109931095B (en) * | 2019-04-16 | 2020-04-24 | 中国矿业大学 | Coal gangue underground separation and in-situ filling engineering design method |
| CN110359953B (en) * | 2019-07-05 | 2021-01-26 | 太原理工大学 | Coal mine underground empty roadway filling system device |
| CN112459833B (en) * | 2020-11-25 | 2021-07-20 | 太原理工大学 | Gangue conveying backfill system and method for laying transmission rubber belt under rail |
| CN112643891A (en) * | 2020-12-21 | 2021-04-13 | 中铁建铜冠投资有限公司 | System and pulping method for pulping and filling dry mine tailings |
| CN113509995B (en) * | 2021-07-28 | 2023-11-17 | 烟台杰瑞石油装备技术有限公司 | Goaf filling equipment and goaf filling method |
| CN114233375A (en) * | 2021-11-12 | 2022-03-25 | 中煤科工开采研究院有限公司 | Pure gangue slurry filling material for mine filling and application thereof |
| CN114687790B (en) * | 2022-03-28 | 2024-07-02 | 中煤能源研究院有限责任公司 | Underground coal mine gangue crushing and caching system and use method |
| CN117027844B (en) * | 2023-10-09 | 2023-12-19 | 中国矿业大学 | Coal gangue separation and bottom laying integrated device suitable for tunnel excavation |
| CN117211869B (en) * | 2023-10-30 | 2024-08-06 | 山东金恒力能源科技有限公司 | Underground coal mine gangue backfilling system and backfilling method |
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Granted publication date: 20110316 Termination date: 20140117 |