CN2304472Y - Frictional electrostatic separator - Google Patents

Frictional electrostatic separator Download PDF

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Publication number
CN2304472Y
CN2304472Y CN 97247418 CN97247418U CN2304472Y CN 2304472 Y CN2304472 Y CN 2304472Y CN 97247418 CN97247418 CN 97247418 CN 97247418 U CN97247418 U CN 97247418U CN 2304472 Y CN2304472 Y CN 2304472Y
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CN
China
Prior art keywords
strigil
utility
materials
sorting unit
power transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 97247418
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Chinese (zh)
Inventor
陈清如
章新喜
安振连
梁春成
樊茂明
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China University of Mining and Technology CUMT
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China University of Mining and Technology CUMT
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Priority to CN 97247418 priority Critical patent/CN2304472Y/en
Application granted granted Critical
Publication of CN2304472Y publication Critical patent/CN2304472Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a frictional electrostatic separator, which is suitable for separating mineral substances in a micro granule level. The utility model comprises a positive and a negative high voltage electrodes in a separating chamber, and folding belts for unloading materials, which are driven by driving shafts and turn around the positive and the negative high voltage electrodes. Electrostatic fields are formed between two high voltage plates; the lower end of the separating chamber is connected with materials discharge hoppers, and another end is provided with nozzles; two ends of frictional devices are respectively connected with the materials feeding hoppers and the nozzles. External air supplying systems provide current carrying gas with high speed for the separator. The materials which are brought by the air current with high speed crash and rub the frictional devices, making coals and the mineral substances carried charges with opposite polarity, and the separation of the materials is realized by the electrostatic fields. The utility model provides an efficient and simple coal dressing device for the desulfurization and deliming for micronized coal in depth. The utility model has the advantage of reasonable and simple structure.

Description

The frictional static sorting unit
The utility model relates to a kind of sorting unit, especially a kind of device that utilizes static that solid is sorted out from solid, and it is applicable to the sorting of fine coal and other mineral matter.
In prior art, if will realize the heavily desulfurating and reducing ash of coal, prepare ultralow culm, must coal is levigate, make coal and mineral matter monomer dissociation, therefore must solve the sorting problem of fine beans.And the method for separating of present fine beans is used the physics of wet method, physicochemical coal preparation method mostly, and these methods want water or water and medicament (medium) to carry out sorting, and the de-mediated that needs after the sorting to dewater is handled, and its technical process is also complicated.
Some countries as states such as the U.S., Canada, Poland are to the frictional static coal separation device chamber of experimentizing research in recent years, and its charged device inside mostly is moving component, promptly by its stirring or to rotate the collision that realizes grain group charged; Therefore the fret wear of this strigil is fast, and volume is also often bigger.
The purpose of this utility model is in order to overcome the weak point that above-mentioned prior art exists, and design a kind of effective, simple and direct, dry method frictional static sorting unit cheaply of realizing fine beans, it avoids the wet split water, with the trouble of Jie and dehydration, de-mediated, and technology simple, be easy to realize.
Task of the present utility model is implemented as follows: a kind of frictional static sorting unit, it includes separation chamber and by casing and inner top and the bottom, both sides thereof a power transmission shaft is housed respectively, the discharging folding band of a vertical direction is housed respectively on per two power transmission shafts, the high-pressure polar plate of one positive pole and negative pole respectively is housed at the length direction along two dischargings folding band, form electrostatic field, in the outside, discharging folding band bottom a discharging hairbrush is housed respectively, four power transmission shaft outer ends two collets that are used to make power transmission shaft and high-pressure polar plate supporting and location are housed respectively, in the middle of two dischargings folding band bottom, mine-separating board are housed; Two hoppers about the lower end of casing is connected with, be connected with a nozzle in the middle of its upper end, strigil one end is connected with nozzle, the other end is connected with the negative pressure dispenser, material is fed by the negative pressure dispenser, make its collision, friction through strigil, make mineral grain and coal respectively be with opposite polarity electric charge, in electrostatic field, realize separating.Described negative pressure dispenser is made up of feed hopper and reducer pipe, provides high velocity air by outside air feed and induced draught system, carries material and sends in the strigil.Described strigil is made up of the more piece strigil, and every adjacent two joint strigils connect with ring flange; Every joint strigil is by pipe and be built in coniform spiral and form.Described nozzle be expansion segment and straight section with and interiorly form by guide plate.The coniform spiral of described strigil inside is wound in helical form with brass wire and constitutes on tripod.
The utility model has following advantage compared with prior art: it is the plenum system that adopts air blast and air inducing to combine, and makes both to have made still can guarantee in the separation chamber under very high throughput and the feeding mouth place is a negative pressure state; The feed-type that electric and magnetic oscillation, negative pressure suck, delivery rate is even, adjustable; The knockdown strigil of multistage coniform spiral makes material collision, frictional electrification, since its inner no moving link, its compact conformation, and it is little to wear and tear, and rational structure, makes particle swarm have good charging property; Form the high-voltage electrostatic field between two high pressure pole plates; Adopt the folding belt discharge way that slowly moves from top to bottom, avoided with other discharge way because the cleaned coal that airborne dust causes and the back mixing of tail coal.This device assorting room is water, dense media, medicament not, thereby its technology is simple, cost is low.
Description of drawings:
Fig. 1 is a structure chart of the present utility model.
Fig. 2 is strigil 3 structure charts of the present utility model.
Fig. 3 is nozzle 4 structure charts of the present utility model.
Fig. 4 is nozzle 4 vertical views of the present utility model.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:
As shown in Figure 1, it is with 8, discharging hairbrush 9, collets 10, mine-separating board 11, discharging opening 12, pipe 13, coniform spiral 14, is drawn together a section 15, straight section 16 and guide plate 17 and form by feed hopper 1, reducer pipe 2, strigil 3, nozzle 4, casing 5, high-pressure polar plate 6, power transmission shaft 7, discharging folding.Wherein feed hopper 1 is the taper bucket for the bottom, and it is connected with reducer pipe 2, and its right is communicated with blast pipe, forms the negative pressure dispenser; Strigil 3 is that individual being connected with flange by a plurality of strigils forms, every joint strigil is made up of pipe 13 and built-in coniform spiral 14, the two ends of pipe 3 is fixed with ring flange, built-in coniform spiral constitutes by being wound in helical form with brass wire on tripod and its, when material passes through more piece helical form copper wire, because collision and friction make coal and mineral grain be with opposite polarity electric charge respectively, electrostatic field by separation chamber carries out sorting, no moving link in the strigil, so it is simple in structure, it is little to wear and tear; Nozzle 4 is formed segment by expansion segment 15 and straight section 16, connects a vertical flat straight section in the bottom of straight section 16, and this straight section afterbody has flat taper to close up its expansion segment 15 and straight section 16 built-in guide plates 17; Separation chamber comprises that casing 5 is rectangular box, on its base plate peep hole is arranged, cover plate is arranged above it, casing becomes vertical direction to install, four power transmission shafts 7 are equipped with on its both sides up and down, (one connects the positive high voltage pole plate to two high-pressure polar plates 6, one connects the negative high voltage pole plate), make power transmission shaft 7 and high-pressure polar plate 10 supportings and location by eight collets 10, two discharging foldings are with 8 respectively by two groups of power transmission shafts 7 drives up and down, in the outside, two dischargings folding band bottom 9, two discharging foldings of a discharging hairbrush are housed respectively and are with the middle mine-separating board 11 that is equipped with in 8 bottoms; Two conical discharge buckets 12 are equipped with in the bottom of casing 5.
Produce negative pressure during airflow passes reducer pipe 2, the material of feed hopper 1 feeds in the pipeline under gravity and suction function, material in pipeline with after gas fully mixes, engaging friction device 3, air-flow carries material and coniform spiral body 14 and pipe 13 inwall high velocity impacts in strigil 3, friction, thereby make mineral matters such as coal and pyrite be with opposite polarity electric charge respectively, charged particle swarm carries down through nozzle 4 at air-flow and feeds in the separation chamber in the strong electrostatic field between the two high pressure pole plates, coal moves to two opposite branch directions respectively with mineral matter under strong electrostatic field, and stick to two dischargings folding respectively and be with on 8, discharging folding is with 8 to be rotated by driven by motor by power transmission shaft 7, sticking to discharging folding turns to the lower drive shaft rear with the material on 8 with discharging folding belt and brush by force time by discharging hairbrush 9, under the air-flow rolling action of being cut apart through mine-separating board 11, enter respectively in cleaned coal and tail coal product gatherer and the deduster through hopper 12 thereupon.

Claims (5)

1. frictional static sorting unit, it is characterized in that: it includes separation chamber and by casing (5) and inner top and the bottom, both sides thereof a power transmission shaft (7) is housed respectively, the discharging folding band (8) of a vertical direction is housed respectively on per two power transmission shafts (7), the high-pressure polar plate (6) of one positive pole and negative pole respectively is housed at the length direction along two dischargings folding bands (8), form electrostatic field, in the outside, discharging folding band (8) bottom a discharging hairbrush (9) is housed respectively, in four power transmission shafts (7) outer end two collets (10) that are used to make power transmission shaft (7) and high-pressure polar plate (6) supporting and location are housed respectively, in the middle of two dischargings folding band bottom, mine-separating board (11) are housed; Two hoppers (12) about the lower end of casing (5) is connected with, be connected with a nozzle (4) in the middle of its upper end, strigil (3) one ends are connected with nozzle (4), the other end is connected with the negative pressure dispenser, material is fed by the negative pressure dispenser, make its collision, friction through strigil, make mineral grain and coal respectively be with opposite polarity electric charge, in electrostatic field, realize separating.
2. frictional static sorting unit according to claim 1 is characterized in that: described negative pressure dispenser is made up of feed hopper (1) and reducer pipe (2), provides high velocity air by outside air feed and induced draught system, carries material and sends in the strigil (3).
3. frictional static sorting unit according to claim 1 is characterized in that: described strigil (3) is made up of the more piece strigil, and every adjacent two joint strigils connect with ring flange; Every joint strigil is by pipe (13) and be built in coniform spiral (14) and form.
4. frictional static sorting unit according to claim 1 is characterized in that: described nozzle (4) be expansion segment (15) and straight section (16) with and in have guide plate (17) to form.
5. frictional static sorting unit according to claim 3 is characterized in that: the inner coniform spiral (14) of described strigil (3) is wound in helical form with brass wire and constitutes on tripod.
CN 97247418 1997-10-01 1997-10-01 Frictional electrostatic separator Expired - Fee Related CN2304472Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 97247418 CN2304472Y (en) 1997-10-01 1997-10-01 Frictional electrostatic separator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 97247418 CN2304472Y (en) 1997-10-01 1997-10-01 Frictional electrostatic separator

Publications (1)

Publication Number Publication Date
CN2304472Y true CN2304472Y (en) 1999-01-20

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CN 97247418 Expired - Fee Related CN2304472Y (en) 1997-10-01 1997-10-01 Frictional electrostatic separator

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102179307A (en) * 2011-01-26 2011-09-14 福建仕达静电分选设备有限公司 Pulse electrostatic separation device
CN102319628A (en) * 2011-09-27 2012-01-18 巨锋 Parallel double-roller heating internal circulating electrostatic separator
CN102580853A (en) * 2012-03-12 2012-07-18 中国矿业大学 Modification treatment method for friction electric separation of dust coal
CN102584066A (en) * 2012-03-19 2012-07-18 中国有色金属工业第十四冶金建设公司 Device for preparing cement water reducing agent by physical method
CN102836786A (en) * 2012-09-07 2012-12-26 上海交通大学 Material separation device on basis of friction static electricity
CN104941812A (en) * 2015-07-20 2015-09-30 中国矿业大学 Micro-fine particle material friction electric separation method and device adopting lateral negative pressure adsorption
CN105149099A (en) * 2015-07-20 2015-12-16 中国矿业大学 Reverse-blowing tribo-electrostatic separation method and device for fly ash decarburization
CN106000654A (en) * 2016-05-23 2016-10-12 中国矿业大学 Reverse-feed friction electric separation separating device for particles
WO2017088584A1 (en) * 2015-11-26 2017-06-01 北京纳米能源与系统研究所 Triboelectric dust removal device, dust removal system, and dust removal method
CN106994393A (en) * 2017-05-31 2017-08-01 中国矿业大学 A kind of circular conical surface spin friction electric separation device and its electric separation method
CN108940599A (en) * 2018-08-01 2018-12-07 中国矿业大学 A kind of particle electrification separation system
CN109225643A (en) * 2018-10-23 2019-01-18 江南大学 A kind of superfine powder wet electrostatic grading plant based on rotational flow field
CN109603973A (en) * 2018-12-04 2019-04-12 青海泰宁水泥有限公司 Composite Portland cement preparation facilities and preparation method thereof
CN109622128A (en) * 2018-12-04 2019-04-16 青海泰宁水泥有限公司 It is exclusively used in preparing the device and preparation method of high sulfuric-resisting portland cement
CN109622129A (en) * 2018-12-04 2019-04-16 青海泰宁水泥有限公司 Prepare the device and preparation method of cement additive

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102179307B (en) * 2011-01-26 2013-02-06 福建仕达静电分选设备有限公司 Pulse electrostatic separation device
CN102179307A (en) * 2011-01-26 2011-09-14 福建仕达静电分选设备有限公司 Pulse electrostatic separation device
CN102319628A (en) * 2011-09-27 2012-01-18 巨锋 Parallel double-roller heating internal circulating electrostatic separator
CN102319628B (en) * 2011-09-27 2016-04-27 巨锋 Parallel-dual-roller heating internal-circulation electrostatic separator
CN102580853A (en) * 2012-03-12 2012-07-18 中国矿业大学 Modification treatment method for friction electric separation of dust coal
CN102584066A (en) * 2012-03-19 2012-07-18 中国有色金属工业第十四冶金建设公司 Device for preparing cement water reducing agent by physical method
CN102836786A (en) * 2012-09-07 2012-12-26 上海交通大学 Material separation device on basis of friction static electricity
CN102836786B (en) * 2012-09-07 2015-05-27 上海交通大学 Material separation device on basis of friction static electricity
CN104941812A (en) * 2015-07-20 2015-09-30 中国矿业大学 Micro-fine particle material friction electric separation method and device adopting lateral negative pressure adsorption
CN105149099A (en) * 2015-07-20 2015-12-16 中国矿业大学 Reverse-blowing tribo-electrostatic separation method and device for fly ash decarburization
CN104941812B (en) * 2015-07-20 2017-03-29 中国矿业大学 The fine granule material friction electrical selection method and device of lateral negative-pressure adsorption
WO2017088584A1 (en) * 2015-11-26 2017-06-01 北京纳米能源与系统研究所 Triboelectric dust removal device, dust removal system, and dust removal method
CN106000654A (en) * 2016-05-23 2016-10-12 中国矿业大学 Reverse-feed friction electric separation separating device for particles
CN106000654B (en) * 2016-05-23 2017-10-27 中国矿业大学 A kind of particle reversely feeds friction electrical selection separator
CN106994393A (en) * 2017-05-31 2017-08-01 中国矿业大学 A kind of circular conical surface spin friction electric separation device and its electric separation method
CN106994393B (en) * 2017-05-31 2018-08-17 中国矿业大学 A kind of circular conical surface spin friction electric separation device and its electoral method
CN108940599A (en) * 2018-08-01 2018-12-07 中国矿业大学 A kind of particle electrification separation system
CN109225643A (en) * 2018-10-23 2019-01-18 江南大学 A kind of superfine powder wet electrostatic grading plant based on rotational flow field
CN109225643B (en) * 2018-10-23 2019-09-03 江南大学 A kind of superfine powder wet electrostatic grading plant based on rotational flow field
CN109603973A (en) * 2018-12-04 2019-04-12 青海泰宁水泥有限公司 Composite Portland cement preparation facilities and preparation method thereof
CN109622128A (en) * 2018-12-04 2019-04-16 青海泰宁水泥有限公司 It is exclusively used in preparing the device and preparation method of high sulfuric-resisting portland cement
CN109622129A (en) * 2018-12-04 2019-04-16 青海泰宁水泥有限公司 Prepare the device and preparation method of cement additive

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C19 Lapse of patent right due to non-payment of the annual fee
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