CN100460078C - Gangue separating method and device for mine - Google Patents
Gangue separating method and device for mine Download PDFInfo
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- CN100460078C CN100460078C CNB2007100226027A CN200710022602A CN100460078C CN 100460078 C CN100460078 C CN 100460078C CN B2007100226027 A CNB2007100226027 A CN B2007100226027A CN 200710022602 A CN200710022602 A CN 200710022602A CN 100460078 C CN100460078 C CN 100460078C
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Abstract
A pit coal gangue separation method and equipment adopt combination of a screening crusher, a front mounted type belt conveyer, a screening machine and a selective crushing type separating machine, a postposition type belt conveyer and a gangue transporter. The method includes the following steps: grading on the spot for coal and gangue in downhole to make the coal gangue that is smaller than 50 mm fall onto the postposition type belt conveyer for carting; entering the coal and gangue that are larger than 50 mm to the selective crushing type separating machine, breaking down the same after striking by a revolving impeller, the knocked broken coal after screened by a spiral sieve plate falling into the postposition type belt conveyer for carting; throwing out the gangue which is not knocked broken onto a backboard under a force generated while the impeller in screw rotating motion, and falling the gangue onto the gangue transporter for transport. The equipment may be directly used in downhole for the separation of coal and gangue, wherein the gangue can directly fill a gob area without being discharged from mine, thus the equipment can prevent surface subsidence, reduce environmental pollution, and save transport capacity of the gangue both in surface and underground. The invention has advantages of compact equipment, convenience for assembling and disassembling, good separation effect, and extensive practicality.
Description
Technical field
The present invention relates to mine gangue separating method and equipment, be particularly useful for the direct sorting of down-hole, mine coarse coal and gangue.
Background technology
The separation of bastard coal all is to carry out on ground at present, and the sorting mode has picking, wet concentration, selection by winnowing, gamma ray sorting.Picking: be soon, from ribbon conveyer mixing coal, pick the bulk spoil with hand by artificial usefulness.Its condition of work is very arduous, efficient is low, easily causes and falsely drops, leaks choosing, and potential safety hazard is big.Wet concentration: be to utilize coal different with the proportion of spoil, separate coal and spoil by buoyancy of water, separating effect is better.But its apparatus expensive, complex process, required place is big, uses difficulty in the down-hole.Selection by winnowing: utilize coal different, produce coal and spoil, be applicable to the area of water resource poorness by the buoyancy separation of wind with the density of spoil.Its investment is big, floor space greatly outside, dust-reclamiing mill is bigger, treatment effect is undesirable, the incompatibility subsurface environment.Gamma ray bastard coal sorting: be to adopt gamma ray identification coal and spoil, produce the different signals of telecommunication according to gamma ray in that coal is different with attenuation in the spoil, by the FEEDBACK CONTROL executing agency of the signal of telecommunication, executing agency changes the movement locus of spoil, thereby reaches the purpose that bastard coal separates.But its system complex, sorting capability is little, and the radiation hidden danger of radioactive source often has water or coal slime in the on-the-spot raw coal, and coal cinder, spoil surface are covered by coal slime, causes the difficulty in the identification.Along with the raising day by day of mining mechanization degree, sneaking into bulk spoil amount in the coal increases gradually, in aboveground sorting, causes environmental pollution, takies the farmland.As be used in the backfill in goaf, and will mix coal and transport to ground by the down-hole, the spoil that sub-elects is transported the down-hole back from ground again, and both wastes of manpower are uneconomical again, cause secondary pollution.Therefore, how the direct sorting of carrying out bastard coal in the down-hole is the problem that current urgent need solves.
Summary of the invention
The objective of the invention is provides a kind of compact conformation according to the problem that exists in the prior art, and size is little, easy accessibility, the mine bastard coal separation equipment that directly carries out the sorting of bulk bastard coal in the down-hole.
Mine gangue separating method of the present invention is:
A. coal that underground mining is come out and gangue mixed material carry out preliminary fragmentation with screening crusher on the spot, are delivered to screening machine by the forward type belt conveyer then;
B. the bastard coal less than 50mm through screening machine screening drops down onto on the rear-mounted belt conveyer that is located at its below, flows to the breaking seperator of selection that is located at afterbody greater than coarse coal and the gangue of 50mm;
C. enter and be decomposed after the coarse coal of selecting breaking seperator and the rotary blade of gangue in selecting breaking seperator knock, the coal of being broken into pieces falls on the rear-mounted belt conveyer through the screening of spiral sieve plate; The spoil of not broken into pieces gets rid of to backboard under the active force of impeller helical rotation, falls into the spoil transporter and transports.
Mine bastard coal separation equipment of the present invention, comprise the mine anti-explosion motor, screening crusher, forward type belt conveyer, screening machine and rear-mounted belt conveyer, screening crusher, forward type belt conveyer, screening machine and rear-mounted belt conveyer are organically combined, be provided with the breaking seperator of selection at the rear portion of screening machine, the afterbody of breaking seperator is provided with the spoil transporter.
Height h≤the 3.8m of described screening machine; The breaking seperator of described selection is made of the impeller that knocks bastard coal, the power transmission shaft that impeller is set, shaft coupling and the flame-proof electric motor that are located at spiral sieve plate on the underframe, spiral sieve plate top.
Mine gangue separating method of the present invention and equipment, condition and situation according to the down-hole, mine, a plurality of equipment are organically combined, by the breaking seperator of custom-designed selection, the bulk bastard coal is directly carried out separating of coal and gangue in the down-hole, make the bulk spoil not go out well, can be directly used in the filling in goaf.Not only solved a large amount of transportation problem, saved ground and piled up floor space, avoid expenses such as surface subsidence, environmental improvement, the backfill for the down-hole simultaneously provides a large amount of raw materials.Can reduce freight, ground piles up floor space, avoids surface subsidence, reduces the pollution of environment, expenses such as environmental improvement, save the down-hole of spoil, aboveground freight volume, this method is skillfully constructed, its facility compact, size is little, easy accessibility, good separating effect has practicality widely in this area.
Description of drawings
Fig. 1 is the structural front view of mine bastard coal separation equipment of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the breaking separator structure figure of selection of the present invention.
Among the figure: the 1-screening crusher, 2-forward type belt conveyer, 3-screening machine, 4-are selected breaking seperator, the rear-mounted belt conveyer of 5-, 6-spoil transporter, 4-1 underframe, 4-2 housing, 4-3 spiral sieve plate, 4-4 impeller, 4-5 shaft coupling, 4-6 flame-proof electric motor.
The specific embodiment
The invention will be further described below in conjunction with the embodiment in the accompanying drawing:
Mine gangue separating method of the present invention: coal that underground mining is come out and gangue mixed material are sent into screening crusher 1 and are carried out preliminary fragmentation, by forward type belt conveyer 2 material is sent into screening machine 3 then and carry out material screening, fall into through the mixing coal less than 50mm of screening machine 3 screening and enter rear-mounted belt conveyor 5 under the sieve and send into the down-hole coal bunker; Then enter in the breaking seperator 4 of selection greater than 50mm mixing coal, rotary blade in selecting breaking seperator 4 knocks bulk mixing coal is carried out cracking and sorting, broken coal less than 50mm, fall into rear-mounted belt conveyor 5 by the spiral sieve plate of selecting breaking seperator 4 and send into the down-hole coal bunker, the spoil of not broken into pieces gets rid of to backboard under the active force of middle impeller helical rotation, and falling into spoil transporter 6, to send into waste bin standby.
Mine bastard coal separation equipment shown in Figure 1, it is made of screening crusher 1, forward type belt conveyer 2, screening machine 3, the breaking seperator 4 of selection and rear-mounted belt conveyer 5, wherein: forward type belt conveyer 2 is obliquely installed, its low side links to each other with screening crusher 3, and high-end the inlet with screening machine 3 joined; Rear-mounted belt conveyer 5 continues below forward type belt conveyer 2 high-end; Select breaking seperator 4 to be located at the afterbody of screening machine 3, select the afterbody of breaking seperator 4 to be provided with spoil transporter 6, select breaking seperator 4 to constitute by power transmission shaft, shaft coupling 4-5 and the flame-proof electric motor 4-6 of a plurality of impeller 4-4 that knock bastard coal that are located at spiral sieve plate 4-3, the spiral sieve plate 4-3 top on the underframe 4-1, installation impeller 4-4, be covered with housing 4-2 on the spiral sieve plate 4-3, spiral sieve plate 4-3 is arranged in a combination by many screw rods, by a motor and decelerator transmission.The power transmission shaft that impeller 4-4 is installed is located on housing 4-2 two side shields by bearing block.Select the flame-proof electric motor 4-6 front end of breaking seperator 4 that the frequency converter of controlling its rotating speed is housed, drive the power transmission shaft rotation by shaft coupling 4-5, power transmission shaft connects impeller 4-4 rotation by key, when the baffle plate of bastard coal mixture by housing 4-2 both sides enters when selecting breaking seperator 4, impacted 2 to 4 times by the impeller of its rotation, coal is broken into pieces, and the spoil that is not crashed to pieces flows to the rear end and enters spoil transporter 6.Screening machine 3, the breaking seperator 4 of selection and spoil transporter 6 ride over the top of rear-mounted belt conveyer, the height h≤3.8m of screening machine 3; Motor all in the equipment all adopt fire-proof motor under the coal mine, and voltage is 380/660 volt.The maximum material size of screening crusher 1 is 300 millimeters, discharging-material size≤50～150 millimeter, disposal ability 200～600 tphs.Forward type belt conveyer 2,260 tons of its conveying capacities/per hour, 0～100 millimeter of granularity, 8 meters of horizontal section lengths, 13 meters of tilting section horizontal lengths, 600 millimeters of equipment level section height, 3 meters of discharge end bottom level, the adhesive tape non-flammable adhesive tape is obliquely installed, and its low side is connected with screening crusher 1, the rear-mounted belt conveyer 5 of high-end below continued access, screening machine 3 is located on the rear-mounted belt conveyer 5, and its screen box is connected on the end opening place of forward type belt conveyer 2, treating capacity 260 tphs of screening machine 3,0～100 millimeter of material size, 50 millimeters of partition sizes, 3.8 meters of sieve height overalls, oscillation trajectory are straight line.The power of motor of selecting breaking seperator 4 is 18.5 kilowatts, 250～350 rpms of jump bit rotating speeds, and treating capacity 200 tphs, its spiral compass screen surface screen size is 50 millimeters, 1.5 meters of compass screen surface width, U type compass screen surface.Conveying capacity 200 tphs of rear-mounted belt conveyer 5,0～50 millimeter of granularity, 15 meters of horizontal lengths, 600 millimeters of device height, adhesive tape non-flammable adhesive tape; Conveying capacity 200 tphs of spoil transporter 6,0～100 millimeter of granularity, 8 meters of horizontal lengths, device height is joined work by the scene, the adhesive tape non-flammable adhesive tape.
Claims (3)
1. mine gangue separating method is characterized in that:
A. coal that underground mining is come out and gangue mixed material use screening crusher (1) to carry out preliminary fragmentation on the spot, are delivered to screening machine (3) by forward type belt conveyer (2) then;
B. the bastard coal less than 50mm through screening machine (3) screening drops down onto on the rear-mounted belt conveyer (5) that is located at its below, flows to the breaking seperator of selection (4) that is located at afterbody greater than coarse coal and the gangue of 50mm;
C. enter and be decomposed after the coarse coal of selecting breaking seperator (4) and the rotary blade of gangue in selecting breaking seperator (4) knock, the coal of being broken into pieces falls on the rear-mounted belt conveyer (5) through the screening of spiral sieve plate; The spoil of not broken into pieces gets rid of to backboard under the active force of impeller helical rotation, falls into spoil transporter (6) and transports.
2. the equipment of mine gangue separating method according to claim 1, comprise the mine anti-explosion motor, screening crusher (1), forward type belt conveyer (2), screening machine (3) and rear-mounted belt conveyer (5), it is characterized in that: with screening crusher (1), forward type belt conveyer (2), screening machine (3) and rear-mounted belt conveyer (5) are organically combined, be provided with selection breaking seperator (4) at the rear portion of screening machine (3), the breaking seperator of described selection (4) is by the spiral sieve plate (4-3) that is located on the underframe (4-1), the impeller that knocks bastard coal (4-4) of spiral sieve plate (4-3) top, the power transmission shaft of impeller (4-4) is set, shaft coupling (4-5) and flame-proof electric motor (4-6) constitute, and select the afterbody of breaking seperator (4) to be provided with spoil transporter (6).
3. mine bastard coal separation equipment according to claim 2 is characterized in that: the height h≤3.8m of described screening machine (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100226027A CN100460078C (en) | 2007-05-18 | 2007-05-18 | Gangue separating method and device for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100226027A CN100460078C (en) | 2007-05-18 | 2007-05-18 | Gangue separating method and device for mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101053856A CN101053856A (en) | 2007-10-17 |
| CN100460078C true CN100460078C (en) | 2009-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100226027A Expired - Fee Related CN100460078C (en) | 2007-05-18 | 2007-05-18 | Gangue separating method and device for mine |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101869877B (en) * | 2010-06-09 | 2012-01-25 | 重庆南桐矿业有限责任公司南桐选煤厂 | Coal gangue sorting process |
| 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 |
| BR112014002489A2 (en) * | 2011-08-03 | 2017-02-21 | Tech Resources Pty Ltd | mining material processing |
| CN103133031B (en) * | 2013-02-28 | 2015-05-20 | 中国矿业大学 | Method and equipment for separating, conveying and filling underground coal and gangues |
| CN103464263A (en) * | 2013-09-05 | 2013-12-25 | 武汉中理环保科技有限公司 | Crushing device for sorting gangues and sorting method |
| CN105697016B (en) * | 2016-03-29 | 2020-01-07 | 哈尔滨艾可马恩矿业科技开发有限公司 | System and method for quickly transporting and disposing gangue matched with rear part of coal mine rock roadway fully-mechanized roadheader |
| CN106345589B (en) * | 2016-08-12 | 2019-05-03 | 河南理工大学 | The broken apart experimental rig of reaction type bastard coal |
| CN106732994B (en) * | 2016-12-12 | 2018-08-17 | 山东科技大学 | A kind of coal mining coal cinder grinding device |
| CN110075986B (en) * | 2019-04-19 | 2021-06-29 | 神华准格尔能源有限责任公司 | Movable lump coal dry separation system and method for open pit coal mine |
| CN111115193A (en) * | 2020-01-17 | 2020-05-08 | 山东康格能源科技有限公司 | Coal gangue filling process transshipment distributing device and transshipment distributing method thereof |
| CN111298940B (en) * | 2020-03-18 | 2021-01-08 | 安徽理工大学 | Pre-gangue discharge process for coking coal as selected raw material coal and screening device thereof |
| CN111804408B (en) * | 2020-07-24 | 2021-08-27 | 抚顺大伙房水泥有限责任公司 | Comprehensive recycling processing treatment system for coal gangue |
| CN113171829B (en) * | 2021-03-26 | 2022-11-08 | 山东能源重型装备制造集团有限责任公司 | Intelligent sorting and on-site filling device and disassembling and assembling method |
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| GB2094662A (en) * | 1981-03-13 | 1982-09-22 | Kone Oy | Apparatus for crushing relatively soft material such as coal |
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2007
- 2007-05-18 CN CNB2007100226027A patent/CN100460078C/en not_active Expired - Fee Related
Patent Citations (5)
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|---|---|---|---|---|
| GB2094662A (en) * | 1981-03-13 | 1982-09-22 | Kone Oy | Apparatus for crushing relatively soft material such as coal |
| CN2031316U (en) * | 1988-03-09 | 1989-01-25 | 王德维 | Self-grinding separator |
| CN2391695Y (en) * | 1999-10-22 | 2000-08-16 | 周春生 | Machine for sorting gangue from fine coal |
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Non-Patent Citations (1)
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| 煤矿井下煤矸分装分运系统的应用. 禄祺，董代安.煤矿机械，第-卷第1期. 2002 * |
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| CN101053856A (en) | 2007-10-17 |
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| C06 | Publication | ||
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Assignee: Jiangsu Dingjia Technology Co., Ltd. Assignor: China University of Mining & Technology Contract record no.: 2010320000561 Denomination of invention: Gangue separating method and device for mine Granted publication date: 20090211 License type: Exclusive License Open date: 20071017 Record date: 20100507 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090211 Termination date: 20130518 |