CN103657833A - Jigging machine capable of inversely discharging waste rocks and coal washing method of jigging machine - Google Patents
Jigging machine capable of inversely discharging waste rocks and coal washing method of jigging machine Download PDFInfo
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- CN103657833A CN103657833A CN201210314029.8A CN201210314029A CN103657833A CN 103657833 A CN103657833 A CN 103657833A CN 201210314029 A CN201210314029 A CN 201210314029A CN 103657833 A CN103657833 A CN 103657833A
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Abstract
The invention discloses a jigging machine capable of inversely discharging waste rocks and a coal washing method of the jigging machine. Through an improvement, a rock discharging channel and a rock discharging wheel of an existing air pulsation waste rock discharge jigging machine are arranged from a discharging end to a feed end, and a screen surface is changed to an adverse slope type screen surface; a mechanical bed conveying device arranged on the screen surface is utilized to enable waste rock beds to be conveyed in the reverse flow direction, and finally layered waste rocks are discharged out of the feed end. Through the jigging machine capable of inversely discharging the waste rocks and the coal washing method of the jigging machine, the handling capacity in unit area can be significantly increased, the screen penetration amount is reduced, and feeding granularity is enlarged. The jigging machine capable of inversely discharging the waste rocks and the coal washing method of the jigging machine are especially suitable for discharging big waste rocks in steam coal, increase the waste rock raw coal washing quantity and the pyrite raw coal washing quantity, and is a brand new jigging machine and a brand new coal washing method.
Description
Affiliated technical field
The present invention relates to a kind of coal preparation method and cleaning unit thereof, especially relate to a kind of dirt discharge at feed end jigging machine and coal washing method thereof.
Background technology
At present, the air impulsive motion discharge refuse jigging machine and the coal preparation method thereof that use both at home and abroad, 196～226 pages of < < mineral dressing > > mono-books of publishing just like in October, 2002 second impression of publishing house of China Mining University are contained, 329～435 pages of < < coal separation handbook > > mono-books that and for example Chinese coal industry publishing house publishes in April, 1993 are contained, its the most basic feature is that bed integral body is moved to exhaust end by feeding end.The middle existence of working for many years: the feeding end problems such as the serious and speed of travel on bed such as bulk and weight ironware of sieve is slow thoroughly, exist following shortcoming: 1. jigging machine unit are disposal ability is little in production; 2. weigh ironware difficulty in walking; 3. enter to wash the upper limit less than the moving sieve by mechanical transport, shallow slot, oblique wheel etc.; 4. being not suitable for coarsegrain enters to wash; 5. sieve is large thoroughly for feeding mouth.
Summary of the invention
The object of this invention is to provide a kind of reverse dispatch of spoil on compass screen surface that allows, after layering, from pan feeding termination, discharge, accelerate bed movement velocity, strengthen unit are treating capacity, reduce the feeding mouth dirt discharge at feed end jigging machine of sieve thoroughly.
Another object of the present invention is to provide a kind of dirt discharge at feed end Coal cleaning by jigging method that realizes above-mentioned coal washing method.
Technical scheme of the present invention is summarized as follows:
A kind of dirt discharge at feed end jigging machine of the present invention, comprise mechanical bed conveying device, compass screen surface, spoil bed, discharge refuse road and discharge refuse wheel, wherein feeding end is changed to from exhaust end in the discharge refuse road of existing discharge refuse jigging machine and discharge refuse wheel, and compass screen surface is changed into adverse slope, be provided with-15 degree to the negative incidence of 0 degree, by the mechanical bed conveying device arranging on compass screen surface, make spoil bed realize adverse current to conveying again, the spoil after layering is discharged from pan feeding termination.
A kind of dirt discharge at feed end jigging machine of the present invention, wherein said mechanical bed conveying device is scraping plate conveying device, and described conveying scraper plate arranges along being parallel to compass screen surface, has the gap of 0-20mm with compass screen surface, and perpendicular to body, adverse current is to operation, and the speed of service is controlled on demand.
A kind of dirt discharge at feed end jigging machine of the present invention, wherein said mechanical bed conveying device is reciprocating motion compass screen surface device, spoil on described reciprocating motion compass screen surface is to the motion of pan feeding direction under the promotion of compass screen surface, and the speed of service is by regulating on demand reciprocating motion number of times to control.
A kind of dirt discharge at feed end jigging machine of the present invention, wherein said mechanical bed conveying device is the aggregate motion compass screen surface device that the roller bearing of a Plane Installation of many parallel one-tenth arranged side by side forms, spoil on described motion compass screen surface is to the motion of pan feeding direction under the promotion of compass screen surface, and the speed of service regulates by controlling on demand the velocity of rotation of roller bearing.
A kind of dirt discharge at feed end jigging machine of the present invention, wherein said mechanical bed conveying device is the aggregate motion compass screen surface device that the helical axis of a Plane Installation of many parallel one-tenth arranged side by side forms, the speed of service regulates by controlling the velocity of rotation of helical axis on demand.
A kind of dirt discharge at feed end jigging machine of the present invention, wherein said mechanical bed conveying device is the vibrating screen surface device that compass screen surface is done sieve formula oscillating movement, spoil on compass screen surface is to the motion of pan feeding direction beat type under the promotion of vibrating screen surface, and the speed of service is controlled on demand by controlling the Oscillation Amplitude of compass screen surface.
Realize a kind of dirt discharge at feed end coal jigging method of above-mentioned jigging machine, comprise air impulsive motion coal washing method, wherein in assorting room, by mechanical bed conveying device, make spoil bed bottom realize adverse current to conveying by the spoil of compass screen surface, form the stable spoil bed that feeding end is thick, the port of export is thin, spoil after dividing is well discharged from pan feeding termination, and the method comprises following steps:
1. start system, add raw coal, start to produce;
2. to compass screen surface, form after spoil bed, open mechanical bed conveying device, with mechanical assistant spoil bed, realize adverse current to conveying;
3. after the stable spoil bed that feeding end to be formed is thick, the port of export is thin, open discharge refuse wheel, spoil is discharged from the discharge refuse road of feeding end;
4. according to the thickness of bed, become the situation that diminishes greatly, automatically adjust the discharge refuse wheel speed of service fast or slow, keep bed height constant;
5. when stopping pan feeding, stop discharge;
6. constantly add raw coal, continuously normal production.
Adopt dirt discharge at feed end jigging machine of the present invention and coal washing method, can significantly increase unit are treating capacity, and can reduce sieve loss thoroughly, further expand into washing the upper limit.Thereby can solve in coal washery the problem that further energy-saving and cost-reducing, bulk runs into while entering to wash.A kind of brand-new discharge refuse jigging machine and coal washing method thereof.
Accompanying drawing explanation
Fig. 1 represents a kind of structural representation of dirt discharge at feed end jigging machine
Fig. 2 represents the structural representation of another kind of dirt discharge at feed end jigging machine
Fig. 3 represents the structural representation of the third dirt discharge at feed end jigging machine
Fig. 4 represents the structural representation of the 4th kind of dirt discharge at feed end jigging machine
Fig. 5 represents the structural representation of the 5th kind of dirt discharge at feed end jigging machine
Fig. 6 represents the structural representation of the 6th kind of dirt discharge at feed end jigging machine
In figure:
1. body, 2. compass screen surface, 3. drive unit, 4. jockey, 5. discharge refuse wheel, 6. mine tailing discharge gate, 7. discharge refuse road, 8. concentrate discharge road, 9. concentrate discharge gate.
10. geared system, 11. drive units, 12. roller bearing compass screen surfaces.
13. helical axis compass screen surfaces.
14. vibrating screen surfaces, 15. mechanical frameworks or linkage, 16. drive units.
17. head driving devices, 18. driving wheels, 19. times chain scraper plate groups, 20. directive wheels, 21. directive wheels, 22. directive wheels, 23. conveyer chain scraper plate groups, 24. fixing compass screen surfaces.
25. fixing compass screen surfaces, 26. conveyer chain scraper plate groups, 27. times chain scraper plate groups, 28. directive wheels, 29. head driving devices.
The specific embodiment
The present invention can provide the dirt discharge at feed end jigging machine of multiple pattern, in embodiment, in conjunction with single hop compound air chamber dirt discharge at feed end air pulsating jig, further expands description:
Embodiment 1, in Fig. 1, a kind of single hop compound air chamber dirt discharge at feed end air pulsating jig, it comprises common single hop compound air chamber air pulsating jig body 1 and mechanical bed conveying device, 1 shape of wherein said single hop compound air chamber air pulsating jig body, structure, material therefor, effects etc. are prior art, difference is that the discharge refuse road 7 in jig body 1 and discharge refuse wheel 5 are moved on to feeding end from exhaust end, described mechanical bed conveying device is by sieve plate 2, drive unit 3, jockey 4 forms, and former being fixedly connected with between the compass screen surface 2 that is arranged on described body 1 and described body 1 changed into and be flexibly connected installation, and compass screen surface 2 architecture advances are become can meet the plate armature that moves back and forth needs.Described flexible connection erecting device adopts the prior aries such as conventional roller or chute, and the shape of described flexible connection erecting device, structure, installation, material therefor, effect etc. are also that conventional prior art no longer describes in detail here.Described compass screen surface 2 adopts plate armature, for adverse slope is installed, its intensity meets reciprocating needs, and described compass screen surface 2 can have-15 degree to the negative incidence of 0 degree, and the shape of described compass screen surface 2, structure, material therefor, effect etc. are also that conventional prior art no longer describes in detail here.The motion of described flexible connection erecting device and described motion compass screen surface 2 requires institute adaptive.The motion compass screen surface 2 that described flexible connection after improvement is installed, by maintaining static of original sieve plate, become limited reciprocating motion, described motion compass screen surface 2 can allow the material on described compass screen surface, on the equidirectional of the Flow of Goods and Materials direction of described air pulsating jig body 1, once has 10mm to the amount of exercise of 100mm.The power source of described motion compass screen surface 2 is provided by the drive unit 3 increasing newly, the mechanical crankshaft-link rod installation composition that described drive unit 3 is driven by motor and speed reducer, the shape of described drive unit 3, structure, material therefor, effect etc. are also that conventional prior art no longer describes in detail here, and the reciprocating motion of the version of described drive unit 3 and described motion compass screen surface 2 requires institute adaptive.Between described motion compass screen surface 2 and described driving 3, with the jockey 4 newly adding, be flexibly connected, the shape of described jockey 4, structure, material therefor, effect etc. are also conventional prior art, and the reciprocating motion of the version of described jockey 4 and described motion compass screen surface 2 requires institute adaptive.Described drive unit 3 is arranged on outside described air pulsating jig body 1, one of described jockey 4 is flexibly connected with described drive unit 3, other end is flexibly connected with described motion compass screen surface 2, its middle part is through described air pulsating jig body 1, and be dynamically connected with described air pulsating jig body 1 sealed sliding, described flexible connection, sealed sliding are dynamically connected and no longer describe in detail here into suitable conventional prior art.
The present embodiment when work, first prepare jigging machine, and complete bed, fill with water, startup system, adjust geomantic omen parameter, add raw coal, start to produce; Bob under the fluctuating flow effect that bed produces in pulsation air blast, realizes by density stratification; Part particulate in the heavy product of lower floor after sorting sees through sieve plate 2 and discharges from mine tailing discharge gate 6; To compass screen surface 2, form after spoil bed, open drive unit 3, by jockey 4, compass screen surface 2 is moved back and forth, with mechanical assistant spoil bed, realize adverse current to conveying; On lower screen after sorting, the spoil of heavy product moves back and forth reverse conveying backward under power effect at sieve plate 2; After the stable spoil bed that feeding end to be formed is thick, the port of export is thin, open discharge refuse wheel 5, spoil is discharged from the discharge refuse road 7 of feeding end; The light product in upper strata after sorting travels forward under the acting in conjunction in geomantic omen, and discharges from concentrate discharge gate 9 by concentrate discharge road 8.In work, according to the thickness of bed, become the situation that diminishes greatly, automatically adjust the discharge refuse wheel speed of service fast or slow, keep bed height constant; When stopping pan feeding, stop discharge; Thereby complete the sorting work of raw coal, constantly add raw coal, continuously normal production.
Principle based on same and method, the present invention also can change the single stage jigging machine as in Fig. 1 into two sections of jigging machines, the installation site of corresponding improvement second segment drive unit and jockey is to exhaust end, and require institute adaptive with compass screen surface motion, according to integral layout, do correspondence adjustment, can reach goal of the invention equally.
Embodiment 2, in Fig. 2, another kind of single hop compound air chamber dirt discharge at feed end air pulsating jig, its shape, structure, material therefor, effects etc. are identical with Fig. 1, difference is that the slip compass screen surface 2 in Fig. 1 is substituted by roller bearing compass screen surface 12, described roller bearing compass screen surface 12 is the combination compass screen surface that the roller bearing of many parallel levels installations arranged side by side forms, between every roller bearing, leave jigging machine and thoroughly sieve the 5mm that needs to 20mm gap, can adopt solid shafting or open-work hollow shaft, while adopting solid shafting, the diameter of axle is 20mm-50mm, while adopting open-work hollow shaft, aperture is 5mm-20mm, described roller bearing is done rotating Vortex motion, axis after described roller bearing is installed is vertical with the Flow of Goods and Materials direction of described air pulsating jig body 1, described roller bearing compass screen surface 12 can have-15 degree to the inclination angle of 0 degree, material on described roller bearing compass screen surface 12 is motion backward under the promotion of roller bearing, described roller bearing compass screen surface 12 can allow the material on described compass screen surface, on the rightabout of the Flow of Goods and Materials direction of described air pulsating jig body 1, once there is 20mm to the amount of exercise of 50mm, on the above-below direction of flow direction of material side, once there is 5mm to the amount of exercise of 20mm, on the left and right directions of flow direction of material side, once there is the amount of exercise of 0mm.Flexible connection erecting device in Fig. 1 is substituted by roller bearing end hold-down support device, and the version of described roller bearing end hold-down support device and roller bearing end structure are adaptive.The shape of described roller bearing end hold-down support device, structure, installation, material therefor, effect etc. are also that conventional prior art no longer describes in detail here.The drive unit 11 that the gear-box that the drive unit 3 of the mechanical crankshaft-link rod installation composition being driven by motor and speed reducer in Fig. 1 is driven by motor and speed reducer forms replaces, and the shape of described drive unit 11, structure, installation, material therefor, effect etc. are also that conventional prior art no longer describes in detail here.The motion of the version of described drive unit 11 and described roller bearing compass screen surface 11 requires institute adaptive.Jockey 4 in Fig. 1 is replaced by geared system 10, and the shape of described geared system 10, structure, installation, material therefor, effect etc. are also that conventional prior art no longer describes in detail here, the structure of described geared system 10 and 12 adaptations of described roller bearing compass screen surface.
The present embodiment when work, first prepare jigging machine, and complete bed, fill with water, startup system, adjust geomantic omen parameter, add raw coal, start to produce; Bob under the fluctuating flow effect that bed produces in pulsation air blast, realizes by density stratification; Part particulate in the heavy product of lower floor after sorting sees through sieve plate 12, from mine tailing discharge gate 6, discharges; To compass screen surface, form after spoil bed, open drive unit 11, by jockey 10, make 12 motions of roller bearing sieve plate, with mechanical assistant spoil bed, realize adverse current to conveying; The spoil of heavy product reverse conveying backward under the 12 motoricity effects of roller bearing sieve plate on lower screen after sorting; Feeding end to be formed is thick, after the thin stable spoil bed of the port of export, opens discharge refuse wheel 5, and spoil is discharged from the discharge refuse road 7 of feeding end; The light product in upper strata after sorting travels forward under the acting in conjunction in geomantic omen, and discharges from concentrate discharge gate 9 by concentrate discharge road 8.In work, according to the thickness of bed, become the situation that diminishes greatly, automatically adjust the discharge refuse wheel speed of service fast or slow, keep bed height constant; When stopping pan feeding, stop discharge; Thereby complete the sorting work of raw coal, constantly add raw coal, continuously normal production.
Principle based on same and method, the present invention also can change the single stage jigging machine as in Fig. 2 into two sections of jigging machines, the installation site of corresponding improvement second segment drive unit and jockey is to exhaust end, and require institute adaptive with compass screen surface motion, according to integral layout, do correspondence adjustment, can reach goal of the invention equally.
Embodiment 3, in Fig. 3, a kind of single hop compound air chamber dirt discharge at feed end air pulsating jig, its shape, structure, material therefor, effects etc. are identical with Fig. 2, difference is that the roller screen face 11 in Fig. 2 is substituted by helical axis compass screen surface 13, described helical axis compass screen surface 13 is the combination compass screen surface that the helical axis of many parallel levels installations arranged side by side forms, between every helical axis, leave jigging machine and thoroughly sieve the gap needing, can adopt solid shafting or open-work hollow shaft, while adopting solid shafting, the diameter of axle is 20mm-50mm, while adopting open-work hollow shaft, aperture is 5mm-20mm, the subtend rotational motion of described helical axis rotating Vortex or two one group, axis after described helical axis is installed is identical with the Flow of Goods and Materials direction of described air pulsating jig body 1, described helical axis compass screen surface 13 can have-15 degree to the inclination angle of 0 degree, material on described helical axis compass screen surface 13 is motion backward under the promotion of helical axis, described helical axis compass screen surface 13 can allow the material on described compass screen surface, on the rightabout of the Flow of Goods and Materials direction of described air pulsating jig body 1, once there is 30mm to the amount of exercise of 100mm, on the above-below direction of flow direction of material side, once there is 5mm to the amount of exercise of 20mm, on the left and right directions of flow direction of material side, once there is 5mm to the amount of exercise of 20mm.Roller bearing end hold-down support device in Fig. 2 is substituted by upset end hold-down support device, the shape of described upset end hold-down support device, structure, installation, material therefor, effect etc. are also that conventional prior art no longer describes in detail here, the structure of described upset end hold-down support device and 13 adaptations of described helical axis compass screen surface.
The present embodiment when work, first prepare jigging machine, and complete bed, fill with water, startup system, adjust geomantic omen parameter, add raw coal, start to produce; Bob under the fluctuating flow effect that bed produces in pulsation air blast, realizes by density stratification; Part particulate in the heavy product of lower floor after sorting sees through helical axis sieve plate 13 and discharges from mine tailing discharge gate 6; To compass screen surface, form after spoil bed, open drive unit 11, by jockey 10, make 13 motions of helical axis sieve plate, with mechanical assistant spoil bed, realize adverse current to conveying; The spoil of heavy product reverse conveying backward under the 13 motoricity effects of helical axis sieve plate on lower screen after sorting; Feeding end to be formed is thick, after the thin stable spoil bed of the port of export, opens discharge refuse wheel 5, and spoil is discharged from the discharge refuse road 7 of feeding end; The light product in upper strata after sorting travels forward under the acting in conjunction in geomantic omen, and discharges from concentrate discharge gate 9 by concentrate discharge road 8.In work, according to the thickness of bed, become the situation that diminishes greatly, automatically adjust the discharge refuse wheel speed of service fast or slow, keep bed height constant; When stopping pan feeding, stop discharge; Thereby complete the sorting work of raw coal, constantly add raw coal, continuously normal production.
Principle based on same and method, the present invention also can change the single stage jigging machine as in Fig. 3 into two sections of jigging machines, the installation site of corresponding improvement second segment drive unit and jockey is to exhaust end, and require institute adaptive with compass screen surface motion, according to integral layout, do correspondence adjustment, can reach goal of the invention equally.
Embodiment 4, in Fig. 4, a kind of single hop compound air chamber dirt discharge at feed end air pulsating jig, its shape, structure, material therefor, effect etc. are identical with Fig. 1, difference is that the slip compass screen surface 2 in Fig. 1 is substituted by vibrating screen surface 14, described vibrating screen surface 14 is the plate armature that can meet vibration needs, and the flexible connection erecting device 5 in Fig. 1 is connected and installed device 15 by vibration and is substituted, and described vibration is connected and installed device 15 and vibrating screen surface 14 adaptations.The shape of described vibrating screen surface 14, structure, installation, material therefor, effect etc. are also that conventional prior art no longer describes in detail here.Described vibration is connected and installed the shape, structure, installation, material therefor, effect of device 15 etc. also for conventional prior art no longer describes in detail here.The vibration installation direction of described vibrating screen surface 14 and the Flow of Goods and Materials opposite direction of described air pulsating jig body 1, described vibrating screen surface 14 can have-15 degree to the inclination angle of 0 degree, material on described vibrating screen surface 14 travels forward under the promotion of vibration force, described vibrating screen surface 14 can allow the material on described compass screen surface, on the rightabout of the Flow of Goods and Materials direction of described air pulsating jig body 1, once there is 4mm to the amount of exercise of 20mm, on the above-below direction of flow direction of material side, once there is 2mm to the amount of exercise of 20mm, on the left and right directions of flow direction of material side, once there is the amount of exercise of 0mm.Jockey 4 in Fig. 1 is substituted by mechanical framework or linkage 15, and the version of described mechanical framework or linkage 15 and described air pulsating jig body 1 structure are adaptive.The shape of described mechanical framework or linkage 15, structure, installation, material therefor, effect etc. are also that conventional prior art no longer describes in detail here.The drive unit 16 that the drive unit 3 of the mechanical crankshaft-link rod installation composition being driven by motor and speed reducer in Fig. 1 is comprised of motor or electromagnetic vibration agencies replaces, described drive unit 16 can be machinery or electromagnetic oscillation device, can be arranged on described air pulsating jig body 1 top or sidepiece or bottom, the shape of described drive unit 16, structure, installation, material therefor, effect etc. are also that conventional prior art no longer describes in detail here.The motion of the version of described drive unit 16 and described vibrating screen surface 14 requires institute adaptive.
The present embodiment when work, first prepare jigging machine, and complete bed, fill with water, startup system, adjust geomantic omen parameter, add raw coal, start to produce; Bob under the fluctuating flow effect that bed produces in pulsation air blast, realizes by density stratification; Part particulate in the heavy product of lower floor after sorting sees through vibrating screen surface 14 and discharges from mine tailing discharge gate 6; To compass screen surface, form after spoil bed, open drive unit 16, by jockey 15, make vibrating screen surface 14 vibrations; With mechanical assistant spoil bed, realize adverse current to conveying; The spoil of heavy product reverse conveying backward under vibrating screen surface 14 motoricity effects on lower screen after sorting; Feeding end to be formed is thick, after the thin stable spoil bed of the port of export, opens discharge refuse wheel 5, and spoil is discharged from the discharge refuse road 7 of feeding end; The light product in upper strata after sorting travels forward under the acting in conjunction in geomantic omen, and discharges from concentrate discharge gate 9 by concentrate discharge road 8.In work, according to the thickness of bed, become the situation that diminishes greatly, automatically adjust the discharge refuse wheel speed of service fast or slow, keep bed height constant; When stopping pan feeding, stop discharge; Thereby complete the sorting work of raw coal, constantly add raw coal, continuously normal production.
Principle based on same and method, the present invention also can change the single stage jigging machine as in Fig. 1 into two sections of jigging machines, the installation site of corresponding improvement second segment drive unit and jockey is to exhaust end, and require institute adaptive with compass screen surface motion, according to integral layout, do correspondence adjustment, can reach goal of the invention equally.
The present embodiment when work, first prepare and complete bed, fill with water, startup system, adjust geomantic omen parameter, the raw coal that adds completes pulsation Jigging Stratification in bed.Part particulate in the heavy product of lower floor after sorting sees through sieve plate 24 and discharges from mine tailing discharge gate 6; To compass screen surface 24, form after spoil bed, open drive unit 17, by driving wheel 18, chain scraper plate group 19, conveyer chain scraper plate group 23 are clockwise rotated, with mechanical assistant spoil bed, realize adverse current to conveying; The spoil of heavy product reverse conveying backward under fixing compass screen surface 24 motoricity effects on lower screen after sorting; Feeding end to be formed is thick, after the thin stable spoil bed of the port of export, opens discharge refuse wheel 5, and spoil is discharged from the discharge refuse road 7 of feeding end; The light product in upper strata after sorting travels forward under the acting in conjunction in geomantic omen, and discharges from concentrate discharge gate 9 by concentrate discharge road 8.In work, according to the thickness of bed, become the situation that diminishes greatly, automatically adjust the discharge refuse wheel speed of service fast or slow, keep bed height constant; When stopping pan feeding, stop discharge; Thereby complete the sorting work of raw coal, constantly add raw coal, continuously normal production.
Principle based on same and method, the present invention also can allow back chain scraper plate group 19 move in bed directive wheel 21, directive wheel 18 middle arrangement with lower bed layer at the water surface as described in the annular scraper conveying arrangement as Fig. 5, can reach goal of the invention equally.
The present embodiment when work, first prepare and complete bed, fill with water, startup system, adjust geomantic omen parameter, the raw coal that adds completes pulsation Jigging Stratification in bed.Part particulate in the heavy product of lower floor after sorting sees through sieve plate 25 and discharges from mine tailing discharge gate 6; To compass screen surface, form after spoil bed, open drive unit 29, by driving wheel 29, chain scraper plate group 26, conveyer chain scraper plate group 25 are rotated counterclockwise, with mechanical assistant spoil bed, realize adverse current to conveying; The spoil of heavy product reverse conveying backward under fixing compass screen surface 25 motoricity effects on lower screen after sorting; Feeding end to be formed is thick, after the thin stable spoil bed of the port of export, opens discharge refuse wheel 5, and spoil is discharged from the discharge refuse road 7 of feeding end; The light product in upper strata after sorting travels forward under the acting in conjunction in geomantic omen, and discharges from concentrate discharge gate 9 by concentrate discharge road 8.In work, according to the thickness of bed, become the situation that diminishes greatly, automatically adjust the discharge refuse wheel speed of service fast or slow, keep bed height constant; When stopping pan feeding, stop discharge; Thereby complete the sorting work of raw coal, constantly add raw coal, continuously normal production.
Principle based on same and method, the present invention also can change the single stage jigging machine as in Fig. 1 into two sections of jigging machines, the installation site of corresponding improvement second segment drive unit and jockey, and require institute adaptive with compass screen surface motion, according to integral layout, do correspondence adjustment, can reach goal of the invention equally.
Principle based on same and method, the present invention also can change the single stage jigging machine as in Fig. 1 to 6 into three sections of jigging machines, the installation site of corresponding improvement drive unit and jockey, and require institute adaptive with compass screen surface motion, and do correspondence adjustment according to integral layout, and guarantee that every section of sieve plate inclination angle progressively reduces, and can reach goal of the invention equally.
Principle based on same and method, the present invention also can as in Fig. 1 to 6 as required, can change the position of raw coal pan feeding point, suitably in advance or after leaning on, can more be conducive to layering, more easily guarantee sieve effect thoroughly, can reach goal of the invention equally.
Principle based on same and method, the present invention also can will change the jigging machine of other form into as compound air chamber air pulsating jig in Fig. 1 to 6, and does correspondence adjustment according to integral layout, can reach goal of the invention equally.
Principle based on same and method, the present invention also can add other mechanically aided conventional mechanical by realizing in bed, substitutes above-mentioned mechanical bed conveying device, can reach goal of the invention equally.
Principle based on same and method, the present invention also can move and help other conventional mechanical device of bed transportation realizing by compass screen surface, substitutes above-mentioned mechanical bed conveying device, can reach goal of the invention equally.
Realize a kind of dirt discharge at feed end coal jigging method of above-mentioned jigging machine, comprise air impulsive motion coal washing method, wherein in assorting room, by mechanical bed conveying device, make spoil bed bottom realize adverse current to conveying by the spoil of compass screen surface, formation feeding end is thick, the stable spoil bed that the port of export is thin, divides the spoil after getting well to discharge from pan feeding termination, and the method comprises following steps:
1. start system, add raw coal, start to produce;
2. to compass screen surface, form after spoil bed, open mechanical bed conveying device, with mechanical assistant spoil bed, realize adverse current to conveying;
3. feeding end to be formed is thick, after the thin stable spoil bed of the port of export, opens discharge refuse wheel, and spoil is discharged from the discharge refuse road of feeding end;
4. according to the thickness of bed, become the situation that diminishes greatly, automatically adjust the discharge refuse wheel speed of service fast or slow, keep bed height constant;
5. when stopping pan feeding, stop discharge;
6. constantly add raw coal, continuously normal production.
In sum, the invention discloses a kind of dirt discharge at feed end jigging machine and coal washing method thereof, feeding end is changed to from exhaust end in the discharge refuse road of existing air impulsive motion discharge refuse jigging machine and discharge refuse wheel, and compass screen surface is changed into adverse slope, by the mechanical bed conveying device arranging on compass screen surface, make spoil bed realize adverse current to conveying again, finally the spoil after layering is discharged from pan feeding termination.Adopt dirt discharge at feed end jigging machine of the present invention and coal washing method thereof, can significantly increase unit are treating capacity, reduce sieve thoroughly, strengthen material size.Be specially adapted to thermal coal bulk discharge refuse, many spoils raw coal enters to wash, and many troilite raw coal enters to wash, and is a kind of brand-new jigging machine and coal washing method thereof.
The invention discloses a kind of dirt discharge at feed end jigging machine and coal preparation method thereof; although enumerated above less embodiment; but for those of ordinary skill in the art; some remodeling that the present invention is done, improvement, replacement etc.; or above-mentioned embodiment is done any combination and is changed, within all dropping on protection scope of the present invention.
Claims (7)
1. a dirt discharge at feed end jigging machine, comprise mechanical bed conveying device, compass screen surface, spoil bed, discharge refuse road and discharge refuse wheel, it is characterized in that: feeding end is changed to from exhaust end in the discharge refuse road of existing discharge refuse jigging machine and discharge refuse wheel, and compass screen surface is changed into adverse slope, be provided with-15 degree to the negative incidence of 0 degree, by the mechanical bed conveying device arranging on compass screen surface, make spoil bed realize adverse current to conveying again, the spoil after layering is discharged from feeding end.
2. a kind of dirt discharge at feed end jigging machine as claimed in claim 1, is characterized in that: described mechanical bed conveying device is scraping plate conveying device, and described conveying scraper plate is arranged along being parallel to compass screen surface, there is the gap of 0-20mm with compass screen surface, perpendicular to body, adverse current is to operation, and the speed of service is controlled on demand.
3. a kind of dirt discharge at feed end jigging machine as claimed in claim 1, it is characterized in that: described mechanical bed conveying device is reciprocating motion compass screen surface device, spoil on described reciprocating motion compass screen surface is to the motion of pan feeding direction under the promotion of compass screen surface, and the speed of service is by regulating on demand reciprocating motion number of times to control.
4. a kind of dirt discharge at feed end jigging machine as claimed in claim 1, it is characterized in that: described mechanical bed conveying device is the aggregate motion compass screen surface device that the roller bearing of a Plane Installation of many parallel one-tenth arranged side by side forms, spoil on described motion compass screen surface is to the motion of pan feeding direction under the promotion of compass screen surface, and the speed of service regulates by controlling on demand the velocity of rotation of roller bearing.
5. a kind of dirt discharge at feed end jigging machine as claimed in claim 1, it is characterized in that: described mechanical bed conveying device is the aggregate motion compass screen surface device that the helical axis of a Plane Installation of many parallel one-tenth arranged side by side forms, the speed of service regulates by controlling the velocity of rotation of helical axis on demand.
6. a kind of dirt discharge at feed end jigging machine as claimed in claim 1, it is characterized in that: described mechanical bed conveying device is the vibrating screen surface device that compass screen surface is done sieve formula oscillating movement, spoil on compass screen surface is to the motion of pan feeding direction beat type under the promotion of vibrating screen surface, and the speed of service is controlled on demand by controlling the Oscillation Amplitude of compass screen surface.
7. realize a kind of dirt discharge at feed end coal jigging method described in claim 1 to 6, comprise air impulsive motion coal washing method, it is characterized in that: in assorting room, by mechanical bed conveying device, make spoil bed bottom realize adverse current to conveying by the spoil of compass screen surface, form the stable spoil bed that feeding end is thick, the port of export is thin, spoil after dividing is well discharged from pan feeding termination, and the method comprises following steps:
1. start system, add raw coal, start to produce;
2. to compass screen surface, form after spoil bed, open mechanical bed conveying device, with mechanical assistant spoil bed, realize adverse current to conveying;
3. after the stable spoil bed that feeding end to be formed is thick, the port of export is thin, open discharge refuse wheel, spoil is discharged from the discharge refuse road of feeding end;
4. according to the thickness of bed, become the situation that diminishes greatly, automatically adjust the discharge refuse wheel speed of service fast or slow, keep bed height constant;
5. when stopping pan feeding, stop discharge;
6. constantly add raw coal, continuously normal production.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210314029.8A CN103657833A (en) | 2012-08-30 | 2012-08-30 | Jigging machine capable of inversely discharging waste rocks and coal washing method of jigging machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210314029.8A CN103657833A (en) | 2012-08-30 | 2012-08-30 | Jigging machine capable of inversely discharging waste rocks and coal washing method of jigging machine |
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| CN103657833A true CN103657833A (en) | 2014-03-26 |
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| CN201210314029.8A Pending CN103657833A (en) | 2012-08-30 | 2012-08-30 | Jigging machine capable of inversely discharging waste rocks and coal washing method of jigging machine |
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