CN103464263A - Crushing device for sorting gangues and sorting method - Google Patents
Crushing device for sorting gangues and sorting method Download PDFInfo
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- CN103464263A CN103464263A CN2013103992428A CN201310399242A CN103464263A CN 103464263 A CN103464263 A CN 103464263A CN 2013103992428 A CN2013103992428 A CN 2013103992428A CN 201310399242 A CN201310399242 A CN 201310399242A CN 103464263 A CN103464263 A CN 103464263A
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- gangue
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Abstract
The invention relates to a crushing device for sorting gangues and a sorting method. The crushing device is structurally characterized in that an outer cover is fixed on a support, a feed port is formed in the top of the outer cover, a discharge port is formed in the bottom of the outer cover, and the middle of the outer cover is provided with a vortexing bin; a material divider is arranged in the feed port and the vortexing bin, the upper part of the material divider is of an umbrella-shaped structure, the top of the material divider is provided with a feeding hole, the middle of the material divider is provided with a storage bin of the gangues, and a material throwing disc is arranged below the material divider; a plurality of guide plates are respectively installed below the umbrella-shaped structure of the material divider and are fixed on the outer cover. The method provided by the invention comprises the steps of throwing the gangues into the sorting crushing device, then selectively crushing the gangues in a self-collision manner, and sieving the crushed gangues. The crushing device and the sorting method provided by the invention have the characteristics that the coal components in the gangues are selectively crushed, the integrality of gangue components is kept, the sorting requirement is met, the sorting efficiency is high, the use value of the sorted gangue is high, the process is simple, the energy is saved, the emission amount is reduced, the cost of investment is low, and the production capacity is high.
Description
Technical field
The invention belongs to Solid Waste Treatment and Resources and utilize apparatus field, be particularly related to a kind of breaker for coal gangues automation selection and method for separating, be specifically related to gangue after fragmentation, sub-elect wherein containing the higher component of coal, to realize the recycling of gangue.
Background technology
Development along with Coal Industrial, the generation of gangue grows with each passing day, gangue is by 15% of raw coal output, current annual gangue at least increases by 3.4 hundred million tons, accumulate over the years gangue and surpassed 6,500,000,000 tons, take up an area more than 900,000 mu, and continue to increase, cause the huge waste of resource and the severe contamination of environment.The effects limit such as the gangue caloric value is lower, part easy-weathering, disintegration, grain composition are poor its application, this is also to cause the abandoned immediate cause of a large amount of gangues simultaneously.Why gangue has these and is unfavorable for the factor of utilizing, and is because gangue is the solid waste discharged in coal mining process and coal washing process, be a kind of lower with a kind of phosphorus content of coal seam association in coalification course, than coal hard rock, its complicated component.In the gangue mixture, mineral composition is also complicated and changeable, mainly by clay mineral, calcite, quartz, pyrite and carbonaceous, formed, physics, the chemical property of these components are widely different, the composition of gangue is closely related with coal field geology condition and coal-mining technique again, comprehensive various reasons, the phenomenon such as cause that the gangue caloric value is low, the gangue caloric value is lower, part easy-weathering, disintegration, grain composition are poor.
Existing alternative gangue sorting technology comprises: dense-medium shallow-tank, movable-sieve jig, baum jig etc.But these process equipments are because the restriction of self all can't meet the requirement of coal gangues automation selection.The dense-medium shallow-tank separating density is generally at 1.65g/cm
3～1.8g/cm
3between, be difficult to surpass 1.8g/cm
3, can't meet higher separating density requirement; Movable-sieve jig can meet the separating density requirement, but can not meet for sorting granularity and precision, and the lower limit of separation general control of movable-sieve jig, in the 50mm left and right, can not be realized effective sorting to broken gangue; And the baum jig blast can't meet the mineral separation of large density.
The different rock comprised in gangue, its strength difference of mineral are very large, its compression strength is between 3～47MPa, the mineral of low-carbon (LC), rock equal strength are very large, be difficult to broken, the mineral strength of high-carbon is less, more easily be broken into fine particle, so gangue Minerals composition, hardness level, phosphorus content height have certain corresponding relation with the gangue particle diameter.
Summary of the invention
Purpose of the present invention is in order to overcome above-mentioned the deficiencies in the prior art, and provide that a kind of crushing efficiency is high, the breaker for coal gangues automation selection of failure rate is low and method for separating.
A kind of breaker for coal gangues automation selection, comprise outer cover, feeding-distribution device, some deflectors, batch mixing pan, support, it is characterized in that: outer cover is fixed on support, and the outer cover top is provided with charging aperture, the bottom of outer cover is provided with discharging opening, and the middle part of outer cover is the eddy current storehouse; Feeding-distribution device is arranged in charging aperture and eddy current storehouse, and the top of feeding-distribution device is umbrella-shaped structure, the top of feeding-distribution device is provided with charging hole, the gangue of coming in from charging aperture can be to umbrella-shaped structure through the top of feeding-distribution device dispersed, the feeding-distribution device middle part is the storage feed bin of gangue, and batch mixing pan is arranged on the below of feeding-distribution device; Some deflectors are arranged on respectively below the umbrella-shaped structure of feeding-distribution device and are fixed on outer cover.This device can be optionally by the coal component fragmentation in gangue, and keeps the integrality of spoil component, makes it reach the sorting requirement.
A flow control valve is installed in the bottom of described feeding-distribution device.
Described batch mixing pan is by gear component controls rotating speed, can regulate the speed that throws away of rotating speed and the gangue of batch mixing pan.
A kind of method for separating of the breaker for coal gangues automation selection, it is characterized in that carrying out according to the following steps: the breaker that gangue is delivered to for coal gangues automation selection carries out fragmentation, gangue after fragmentation is delivered to vibratory sieve and is sieved, low-carbon (LC) gangue on vibratory sieve is stored up in low-carbon (LC) gangue stockyard (19), high-carbon coal component under vibratory sieve is stored up in high-carbon coal component stockyard, and then Each answers the purpose intended.The efficiency of separation that this method has gangue is high, the gangue value after sorting is high, technique simple, energy-saving and emission-reduction, cost of investment is low, production capacity is large characteristics.
The screen size of described vibratory sieve is controlled in the scope of 2-12mm.
Breaker for coal gangues automation selection of the present invention, gangue is from the charging aperture access to plant, umbrella-shaped structure effect through feeding-distribution device is divided into two parts by gangue, and a part is glided and final landing by the umbrella-shaped structure guiding, and another part directly falls to the feed bin at feeding-distribution device middle part.The gangue of landing bumps against with deflector after the segment distance that glides, and after bumping against, the direction of motion changes, no longer vertical drop, and its velocity vector produces a minute vector at centripetal direction.Gangue in feed bin enters the batch mixing pan of rotation through flow control valve, and because the effect of centrifugal force is thrown out of, its direction upwarps, and bumps with the gangue through the deflector changed course.Because the speed of the gangue be thrown out of is larger, outwards continue motion final arrival in the eddy current storehouse after two-part gangue collision, form eddy current and continue to occur collision mutually.Due to this collision of twice shock that is all " stone-crash-stone ", therefore broken is all the coal component that hardness is lower, the spoil component that hardness is larger seldom can be crashed, and then makes the coal component make a distinction with the spoil component on granule size, makes sorting become easy.Gangue completes after fragmentation due to the reduction of speed, and centrifugal force is not enough to support its continuation to stay in the eddy current storehouse, thereby landing is to the below discharging opening.
The above-mentioned breaker for coal gangues automation selection, wherein: feeding-distribution device top is umbrella-shaped structure, can the gangue of coming in from charging aperture is dispersed, be conducive to improve possibility and the efficiency that two parts gangue clashes into.
The above-mentioned breaker for coal gangues automation selection, wherein: the bottom of feeding-distribution device is equipped with flow control valve, controls the ratio that is thrown out of gangue and dropping coal spoil, can regulate the composition proportion of composing in finished product.
The above-mentioned breaker for coal gangues automation selection, wherein: the batch mixing pan that can convert rotary speed can throw away gangue with different speed by specific direction, can adjust best stroke speed, and then regulate the composition proportion of composing in finished product.
The above-mentioned breaker for coal gangues automation selection, wherein: deflector is arranged on below the umbrella-shaped structure of feeding-distribution device, it can change the direction of motion of dropping coal spoil, can with the crashing of the gangue generation smaller angle be thrown out of, improve collision efficiency, contribute to realize allowing two parts gangue bumped form eddy current in its storehouse simultaneously.
What method for separating of the present invention adopted is a kind of bradford breaker, the gangue feeding wherein, carry out the self collision fragmentation, the controlled fragmentation machine makes gangue self collision intensity in a suitable scope, can make the rock that hardness is larger, mineral matter is not broken or few broken, utilize rock, mineral strength difference, strengthen the selective of fragmentation, make in the gangue mixture hardness large, the rock that carbon containing is low, mineral keep original granularity substantially, and hardness is little, the mineral that carbon containing is high are broken into particulate, can make different hardness like this under the effect of vibratory sieve, the rock of different phosphorus content, mineral separate, thereby reach the purpose of tensile strength.With traditional fragmentation, compare, selective crushing is not that a kind of pressure is broken, material is not all to want fragmentation or grinding to below certain particle diameter, so the method is a kind of low energy consumption method for separating, and the gangue after sorting can Each answers the purpose intended, gives full play to the potential value of gangue, such as, high-carbon coal component can be used for generating electricity, and the low-carbon (LC) gangue can replace clay, do roadbed material, fire internal combustion brick etc. for the cement plant raw material, thereby improves the utilization rate of gangue.
Compared with prior art, from above technology, traditional breaker can only carry out simple broken work in the present invention, and each component of finished product is owing to not distinguished on granularity, so the sorting of finished product becomes extremely difficult.Apparatus of the present invention have the component sorting function of gangue, and assorting room is simple, and it is high a lot of that the gangue finished product of each component simultaneously sorted out more traditional crusher in crushing on value is wanted.The crumbling method of this device is the collision fragmentation of " stone-crash-stone ", and in shattering process, the gangue outer cover of contact device not substantially, therefore, compare with traditional breaker, and the device course of work of the present invention is comparatively stable, and rate of breakdown is lower.The technical solution adopted in the present invention is: gangue is used the bradford breaker self collision to carry out selective crushing, and broken gangue is used bolting to separate.The present invention improves effective sorting of gangue greatly; Gangue is distincter by the mineral composition sorting, greatly improves value and the utilization ratio of gangue; Whole technological process belongs to low power consuming production.
The accompanying drawing explanation
The structural representation that Fig. 1 is breaker of the present invention.
Fig. 2 is process chart of the present invention.
The specific embodiment
The invention will be further described by reference to the accompanying drawings.
As shown in Figure 1, the present invention includes outer cover 2, feeding-distribution device 5, some deflectors 6, batch mixing pan 7, support 8, it is characterized in that: outer cover 2 is fixed on support 8, and outer cover 2 tops are provided with charging aperture 1, the bottom of outer cover is provided with discharging opening 4, and the middle part of outer cover 2 is eddy current storehouse 3; Feeding-distribution device 5 is arranged in charging aperture 1 and eddy current storehouse 3, and the top of feeding-distribution device 5 is umbrella-shaped structure, the top of feeding-distribution device 5 is provided with charging hole, the gangue of coming in from charging aperture 1 can be to umbrella-shaped structure through the top of feeding-distribution device 5 dispersed, the storage feed bin that feeding-distribution device 5 middle parts are gangue, a flow control valve 9 is installed in the bottom of described feeding-distribution device 5; Batch mixing pan 7 is arranged on the below of feeding-distribution device, and described batch mixing pan 7 is by gear component controls rotating speed; Some deflectors 6 are arranged on respectively below the umbrella-shaped structure of feeding-distribution device 5 and are fixed on outer cover 2.This device can be optionally by the coal component fragmentation in gangue, and keeps the integrality of spoil component, makes it reach the sorting requirement.
Batch mixing pan 7 is by gear component controls rotating speed, can regulate the speed that throws away of rotating speed and the gangue of batch mixing pan 7.Deflector 6 can be corrected the direction of motion of dropping coal spoil.Eddy current storehouse 3 can allow two parts gangue of having bumped within it section form eddy current.The flow control valve 9 of feeding-distribution device 5 can be controlled the ratio that is thrown out of gangue and dropping coal spoil.Feeding-distribution device 5 tops are umbrella-shaped structure, can the gangue of coming in from charging aperture 1 is dispersed.
As shown in Figure 2, method for separating flow process of the present invention is as follows:
Gangue on coal gangue hill 11 is sent in selective breaker of the present invention 13 and is carried out selective crushing through belt conveyor 12, gangue after fragmentation is sent into vibratory sieve 15 through another belt conveyor 14 and is sieved, this Vibration Screen hole dimension is controlled in the scope of 2-12mm, high-carbon coal component under sieve is delivered to high-carbon coal component stockyard 17 through another belt conveyor 16, for power plant with coal etc.; Low-carbon (LC) gangue on vibratory sieve 15 is delivered to low-carbon (LC) gangue stockyard 19 through a belt conveyor 18 again, for the production of clinker, fire internal combustion brick, highway subgrade material etc.
Claims (5)
1. the breaker for coal gangues automation selection, comprise outer cover (2), feeding-distribution device (5), some deflectors (6), batch mixing pan (7), support (8), it is characterized in that: outer cover (2) is fixed on support (8), outer cover (2) top is provided with charging aperture (1), the bottom of outer cover is provided with discharging opening (4), and the middle part of outer cover (2) is eddy current storehouse (3); Feeding-distribution device (5) is arranged in charging aperture (1) and eddy current storehouse (3), and the top of feeding-distribution device (5) is umbrella-shaped structure, the top of feeding-distribution device (5) is provided with charging hole, and feeding-distribution device (5) middle part is the storage feed bin of gangue, and batch mixing pan (7) is arranged on the below of feeding-distribution device; Some deflectors (6) are arranged on respectively below the umbrella-shaped structure of feeding-distribution device (5) and are fixed on outer cover (2).
2. the breaker for coal gangues automation selection according to claim 1, is characterized in that: a flow control valve of bottom installation of described feeding-distribution device (5).
3. the breaker for coal gangues automation selection according to claim 1, it is characterized in that: described batch mixing pan (7) is by gear component controls rotating speed.
4. the method for separating for the breaker of coal gangues automation selection, it is characterized in that carrying out according to the following steps: the breaker (13) that gangue is delivered to for coal gangues automation selection carries out fragmentation, gangue after fragmentation is delivered to vibratory sieve (15) and is sieved, low-carbon (LC) gangue on vibratory sieve (15) is stored up in low-carbon (LC) gangue stockyard (19), high-carbon coal component under vibratory sieve (15) is stored up in high-carbon coal component stockyard (7), and then Each answers the purpose intended.
5. the method for separating of the breaker for coal gangues automation selection according to claim 4, it is characterized in that: the screen size of described vibratory sieve is controlled in the scope of 2-12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103992428A CN103464263A (en) | 2013-09-05 | 2013-09-05 | Crushing device for sorting gangues and sorting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103992428A CN103464263A (en) | 2013-09-05 | 2013-09-05 | Crushing device for sorting gangues and sorting method |
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| CN103464263A true CN103464263A (en) | 2013-12-25 |
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| CN2013103992428A Pending CN103464263A (en) | 2013-09-05 | 2013-09-05 | Crushing device for sorting gangues and sorting method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433106A (en) * | 2013-09-05 | 2013-12-11 | 武汉中理环保科技有限公司 | Crushing device for coal gangue separation |
| CN106955778A (en) * | 2017-04-12 | 2017-07-18 | 高鹏祥 | Screen coal, crush, the storehouse integrated control unit of coal blending three |
| CN108893157A (en) * | 2018-08-08 | 2018-11-27 | 太原理工大学 | A method of moulded coal is prepared by gangue |
| CN109157996A (en) * | 2018-11-16 | 2019-01-08 | 四川亿欣新材料有限公司 | A kind of calcium carbonate powder dispersing method |
| CN111136085A (en) * | 2019-12-27 | 2020-05-12 | 西南科技大学 | Method and device for reducing carbon content in coal gangue through steam jet controlled dissociation |
| CN111515017A (en) * | 2020-04-30 | 2020-08-11 | 舒新前 | Grading and quality-grading method for coal gangue |
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| CN2391695Y (en) * | 1999-10-22 | 2000-08-16 | 周春生 | Machine for sorting gangue from fine coal |
| CN101053856A (en) * | 2007-05-18 | 2007-10-17 | 中国矿业大学 | Gangue separating method and device for mine |
| CN101486014A (en) * | 2009-02-27 | 2009-07-22 | 杨子毅 | Helical flow trough coal separation device by gravity separation and gravity separation method for clean coal using helical flow trough |
| CN103433106A (en) * | 2013-09-05 | 2013-12-11 | 武汉中理环保科技有限公司 | Crushing device for coal gangue separation |
| CN203540655U (en) * | 2013-09-05 | 2014-04-16 | 武汉中理环保科技有限公司 | Crushing device for coal gangue separation |
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Patent Citations (7)
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| US2012694A (en) * | 1933-07-08 | 1935-08-27 | Edward Harding | Crusher and pulverizer |
| GB2094662A (en) * | 1981-03-13 | 1982-09-22 | Kone Oy | Apparatus for crushing relatively soft material such as coal |
| CN2391695Y (en) * | 1999-10-22 | 2000-08-16 | 周春生 | Machine for sorting gangue from fine coal |
| CN101053856A (en) * | 2007-05-18 | 2007-10-17 | 中国矿业大学 | Gangue separating method and device for mine |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433106A (en) * | 2013-09-05 | 2013-12-11 | 武汉中理环保科技有限公司 | Crushing device for coal gangue separation |
| CN103433106B (en) * | 2013-09-05 | 2016-06-29 | 武汉中理环保科技有限公司 | A kind of breaker for coal gangues automation selection |
| CN106955778A (en) * | 2017-04-12 | 2017-07-18 | 高鹏祥 | Screen coal, crush, the storehouse integrated control unit of coal blending three |
| CN108893157A (en) * | 2018-08-08 | 2018-11-27 | 太原理工大学 | A method of moulded coal is prepared by gangue |
| CN109157996A (en) * | 2018-11-16 | 2019-01-08 | 四川亿欣新材料有限公司 | A kind of calcium carbonate powder dispersing method |
| CN111136085A (en) * | 2019-12-27 | 2020-05-12 | 西南科技大学 | Method and device for reducing carbon content in coal gangue through steam jet controlled dissociation |
| CN111515017A (en) * | 2020-04-30 | 2020-08-11 | 舒新前 | Grading and quality-grading method for coal gangue |
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Application publication date: 20131225 |