CN201147722Y - High-pressure electrostatic sorting machine - Google Patents
High-pressure electrostatic sorting machine Download PDFInfo
- Publication number
- CN201147722Y CN201147722Y CNU2007201961139U CN200720196113U CN201147722Y CN 201147722 Y CN201147722 Y CN 201147722Y CN U2007201961139 U CNU2007201961139 U CN U2007201961139U CN 200720196113 U CN200720196113 U CN 200720196113U CN 201147722 Y CN201147722 Y CN 201147722Y
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- dust
- dust collecting
- electrostatic separator
- pressure electrostatic
- pole plate
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Abstract
The utility model discloses a high voltage electrostatic separator, which aims at solving the problems of providing a high voltage electrostatic separator with high metal separation rate, being able to continuously and automatically running and with low processing cost. In order to solve the problems, the high voltage electrostatic separator adopts the following technical proposal: a high voltage electrostatic separator comprises a main body and dust collection electrode plates which can continuously rotate, wherein, a plurality of dust collection electrode plates are fixedly connected in series and fixed through a central shaft, the central shaft is connected with a motor, and a discharge electrode and a wiper blade are respectively installed between each two dust collection electrode plates. Compared with the prior art, the separation rate of the metal dust and the nonmetal dust is greatly improved, simultaneously the content of the nonmetal dust in the separated metal dust is greatly reduced, and generally, the dust content lower than 5 percent can be realized through primary electrostatic separation.
Description
Technical field
The utility model relates to a kind of high-pressure electrostatic separator, especially a kind of high-pressure electrostatic separator that is used for the recovery of containing metal solid waste.
Background technology
Along with the global electronic model change is constantly quickened, scrapping electronic device quantity increases severely just day by day, cause the severe contamination of environment and the huge waste of resource, the renewable resources problem of electron wastes needs to be resolved hurrily, and wherein the difficult problem of electron wastes removal process maximum is the recycling of printed substrate.
It is that cyanide reclaims noble metals such as gold that traditional wiring board waste material and electronic waste reclaim technology, and waste material burns or the water mill wet processing process reclaims metals such as copper; Cyanide reclaims this kind of noble metal treatment process and produce the cyanide that contains severe toxicity in a large number, acid, alkali waste water and the acid waste gas of high concentration in processing procedure; Burn to reclaim waste gas such as producing a large amount of dust and poisonous and harmful (as Dioxin, i.e. dioxin) in the metal process.
Shenzhen and a large amount of waste and old electric and the wiring board waste disposal modes of periphery have two kinds at present: a kind of processing mode is that the various metals of recovery are burned in the remote districts of transferring to Foshan, Qingyuan City, Shantou, the South Sea and Hunan Province's periphery, and the local air pollution that burning causes is quite serious; Another kind of recovery method is that the wet method water mill is handled, this kind processing mode is not high owing to metal recovery rate in processing procedure, cause the waste of metals resources, simultaneously owing in processing procedure, can produce a large amount of waste water, the metal dust that contains in waste water branch in the middle part of sewage body process is received in inflow forms heavy metal ion and causes heavy metal pollution of water body, simultaneously contain certain metal dust at isolated non-metal powder, these waste materials belong to hard-degraded substance basically, relevant environmental regulation is defined as can not the landfill material, but because the non-metal powder that produces in the processing procedure is because dehydration exists too high than big difficulty or dehydration cost, can't be back to fiberglass and fill base material, the present processing approach of these non-metal powders can only arrive the refuse landfill landfill, wherein metal dust can form heavy metal ion gradually and cause heavy metal pollution behind landfill, non-metal powder causes landfill yard landfill capacity to reduce greatly owing to can't degrade, big leap ahead of closing cycle is difficult to realize harmless treatment.
Current China waste electric appliance quantity just with nearly speed development more than 1,000,000 tons in every year, all contains wiring board in the waste electric appliance, account for 8% as wiring board content in the host computer.Contain a lot of toxic materials in the waste printed circuit board,, simultaneously, contain precious metal materials such as gold, silver, copper in the printed circuit board (PCB) again, have very high added value as lead, bromine, benzene, cadmium etc.Lamina cupric 5%～6%, doubling plate cupric 10%～12%, multi-layer sheet cupric 20%～30%; All the other are resin and glass fibre, and resin accounts for 30%～50% of both total amounts usually, and glass fibre accounts for 50%～70%; Contain 10%～20% bromine in the epoxy resin, bromine is a pernicious gas.If waste printed circuit board is mishandling, not only can causes new environmental pollution, and can cause the serious waste of resource.Therefore, the harmless treatment of waste printed circuit board, not only can greatly reduce its harm to environment, the resource of a large amount of preciousnesses is utilized again, this all has great importance to utilization again and the sustainable development that improves existent environment of people, resource.
Industrially developed country all pays much attention to the innoxious recycling of waste printed circuit board.Mainly contain the associated companies of states such as Sweden, Germany, Japan, Canada.Wherein Sweden Scandinavian recovery company is one of maximum in the world recovery company, has developed with the rotational shear disintegrating machine metal material of printed circuit board (PCB) and nonmetallic materials are peeled off, and adopts pneumatic separating that metal powder is separated with non-metal powder again; Germany Daimler Benz Ulm research center becomes broken printed circuit board with shear breaker the particle of 2cm * 2cm earlier, magnetic separation then, use cooled with liquid nitrogen, be ground into tiny powder with the compaction type pulverizer again, the metal material and the nonmetallic materials of printed circuit board (PCB) are peeled off, with electrostatic sorting method metal powder is separated with non-metal powder at last; MAT adopts shearing and impact crusher to make wiring board be ground into the powder of 0.1～0.3mm, adopts the whirlwind sorting technology again, and metal powder is separated with non-metal powder.Moral company of Canada association also adopts and pulverizes the method recycling waste printed circuit board that adds electrostatic separation; Japan NEC Corporation earlier is ground into 100～300 μ m with waste printed circuit board, separates with whirlwind again, the metal part is separated with electrostatic method again, and the rate of recovery of metal is about 90%, metal purity about 82%.This device processes amount 300kg/h needs more than 200,000,000 yuan of yen approximately, and is quite expensive.
Present domestic scrap wire road recycling all has the similar technology of employing, but mainly contains following several defective: 1, not exclusively broken or can't use because of the undesired recovery system that makes of broken process running; 2, assorting room is coarse relatively, and separation rate is not high; 3, reclaiming the back non-metal powder can't handle.
Be used in above-mentioned technology that high-pressure electrostatic sorting basic functional principle that the containing metal solid waste reclaims is charged by gas ionization, grit, plurality of processes such as the heavy collection of grit and deashing form.
(1) gas ionization: on corona discharge electrode, apply high voltage direct current, produce corona discharge, make gas ionization, produce a large amount of negative ions;
(2) grit is charged: if electronegative near the corona discharge electrode, then cation is attracted and loses ionization, and free electron and anion are subjected to the effect of electric field force, just moves to dust collecting electrode, contacts with grit in the dust-contained airflow, makes grit charged;
(3) the heavy collection of grit: charged grit is heavy the collection on the dust collecting electrode surface after arriving dust collecting electrode under the effect of electric field force;
(4) the slow non-conductive material (as nonmetal dust) of the velocity of discharge, because the negative electrical charge of self is not released, and be subjected to the strong repulsion of deviating electrode, just firm is adsorbed on the dust collector pole surface, has only by the mode of rapping or cleaning dust adsorbed is removed; The negative electrical charge of the conductive material (as metallic dust) self that the velocity of discharge is fast is released very soon, just can not adsorbed by pole plate and directly separate from pole plate under the gravity effect.
The high-pressure electrostatic separator is exactly to utilize the electrical difference and realize a kind of method of sorting in high voltage electric field of each component in the solid material, the charged back of dust granules is adsorbed by dust collecting pole plate, metallic particles is owing to have electric conductivity preferably, the pole plate absorption back static that is grounded is eliminated very soon, just separate by gravity from pole plate, non-metal powder is still adsorbed by pole plate owing to its relatively poor electric conductivity, thereby realizes that metal separates with non-metal powder.
Existing in the market high voltage electrostatic equipment mainly is the very electrostatic separator of cylindrical structure that gathers dust as separator, the drum surface area is as the dust collecting pole plate area, rotate by the driven by motor drum, by scraper plate the non-metal powder on drum surface is separated, the collecting region that metal dust is fallen into below the separator realizes that metal separates with nonmetal, this kind mode is because the powder of absorption is constantly fallen on the drum surface by drag flight descaling, make the surface of drum remain clean relatively, the stability that pole plate gathers dust better, but because have only the drum surface area as the dust collecting pole plate area, being difficult to the realization large tracts of land gathers dust, be difficult to rationally be provided with discharge electrode simultaneously, the charged efficient of dust is reduced greatly, metal and nonmetal separation rate and treating capacity are all lower, thereby the metal purity that causes this type of electrostatic separator to sub-elect is very low, and the efficiency of separation is not high; The structure of another kind of high-pressure static cleaner mainly is fixed anode dust collection plate and fixed discharge electrode structure, the electric field structure design is ripe relatively, can realize bigger specific collection area and dust collection effect preferably, by test, it is very good to be used in the effect that metal separates with non-metal powder, but can only carry out the polar board surface deashing by the dismounting artificial deashing of pole plate or by the mode of rapping, there is following defective in this kind processing mode: the one, and equipment can not move continuously, equipment can not be worked when deashing or vibration dust-cleaning, also can produce a large amount of dust during deashing; The 2nd, metal collecting region and nonmetal collecting region are difficult to be provided with, and are difficult to realize automatic operation, yet there are no the data record this kind equipment is used as electrostatic separation equipment.
Summary of the invention
The high-pressure electrostatic separator that problem to be solved in the utility model provides a kind of metal separation rate height, can turn round automatically continuously, processing cost is low.
For addressing the above problem, the utility model has adopted following technical scheme: a kind of high-pressure electrostatic separator, comprise body and the dust collecting pole plate that can rotate continuously, described dust collecting pole plate is a plurality of and fixing by the central shaft serial connection, described central shaft is connected to motor, between described per two dust collecting pole plates a discharge electrode and scraper plate is installed.
Dust collecting pole plate described in the utility model is a disk, and the insulating sleeve of two same spacings is installed between the disk.
It is concentric annulus with central shaft that discharge electrode described in the utility model is one, and distributing equably all around of annulus is provided with the discharge prickle on same plane, do not establish the discharge prickle but reserve a fan type zone.
The extension site of discharge prickle described in the utility model is connected respectively on the unidirectional electrode connecting piece, the two ends of electrode connecting piece are fixed on the shell of equipment by insulated terminal again, and the discharge electrode inner ring sleeve is on the between centers insulating sleeve but keep certain clearance.
Be provided with a rubber flap between the every two-layer dust collecting pole plate of position, fan type described in the utility model zone correspondence.
The left upper end of body described in the utility model is provided with charging aperture, and its corresponding vertical direction lower end is provided with the metallic dust collecting region, and nonmetal dust collecting region is located at the bottom righthand side of body.
The utility model compared with prior art, metallic dust improves greatly with the efficient that nonmetal dust separates, simultaneously the content of nonmetal dust reduces greatly in the isolated metallic dust, generally can realize that by the one-level electrostatic separation dust content is less than 5%.
Description of drawings
Fig. 1 is the structural front view of the utility model high-pressure electrostatic separator
Fig. 2 is the cutaway view of Fig. 1 along A-A
Fig. 3 is the side view of the utility model high-pressure electrostatic separator
Fig. 4 is the schematic diagram of the utility model high-pressure electrostatic separator dust collecting pole plate
Fig. 5 is the schematic diagram of the utility model high-pressure electrostatic separator central shaft
Fig. 6 is the schematic diagram of the utility model high-pressure electrostatic separator discharge electrode
Fig. 7 is the scheme of installation of the utility model high-pressure electrostatic separator dust collecting pole plate
The specific embodiment
The utility model will be further described below in conjunction with accompanying drawing.
As Fig. 1, Fig. 2 and shown in Figure 3, high-pressure electrostatic separator described in the utility model, comprise body and the dust collecting pole plate 8 that can rotate continuously, described dust collecting pole plate 8 is a plurality of and fixing by central shaft 7 serial connections, between per two dust collecting pole plates 8 discharge electrode 9 and scraper plate are installed, discharge electrode 9 is by electrode connecting piece 10 connections and be connected to anodal inlet wire 17.Dust collecting pole plate 8 is a disk (as shown in Figure 4), central shaft 7 is a rigidity circular shaft (as shown in Figure 5), central shaft 7 passes the center of circle of multi-disc disk, the multi-disc disk is contacted, the insulating sleeve 3 of two same spacings is installed to keep stable distance between plates between the disk, insulating sleeve 3 two ends are fixing by hold-down nut 4, thereby disk evenly is fixed on the central shaft 7, disk and central shaft 7 keep in touch well, the two sides of every disk all is effective specific collection area, and the area that stacks up can be suitable with the area of fixing chip electrostatic apparatus; It is concentric annulus with central shaft 7 that single discharge electrode 9 is one, the many discharge prickles that distribute uniformly all around of annulus on same plane, but reserve a fan type zone and do not establish discharge prickle (as shown in Figure 6), the discharge field structure is that a discharge electrode 9 is installed between per two dust collecting pole plates 8, the extension site of each prickle that discharges is connected respectively on the unidirectional electrode connecting piece 10, the two ends of electrode connecting piece 10 are fixed on the shell of equipment by insulated terminal 2 again, and discharge electrode 9 inner ring sleeves are on the between centers insulating sleeve but keep certain clearance (as shown in Figure 7).Central shaft 7 two ends are provided with anti-tooth, and wherein an end is connected with bearing 5 and belt pulley 6, are connected with motor 11 by driving belt 14, and the other end is connected with bearing and negative pole is subjected to electric groove.Body is made up of upper body 15 and following body 1, is fixed on this body support frame 12 by this body support frame nut 16.Charging aperture 101 is located at the left upper end of equipment, the lower end of corresponding vertical direction is provided with metallic dust collecting region 201 and metallic dust collecting bag 202, nonmetal dust collecting region 301 is located at the bottom righthand side of equipment, be non-metallic dust collecting bag 302 under it, rubber flap 13 is arranged between the every two-layer dust collecting pole plate 8 in fan type position, zone that the discharge prickle is not installed.
Send into the charging aperture of equipment by vibratory sieve when containing metal and nonmetallic dust, vibratory sieve can enter high voltage electric field uniformly with the dust of same particle size, wherein the charged back of metallic dust since its good electrical conductivity with the discharge electrode that is grounded very soon of electric charge discharge, become uncharged particle, under the gravity effect, enter the metallic dust collecting region, but not the charged back of metallic dust is because its relatively poor electric conductivity, charged particle is adsorbed by dust collecting pole plate under effect of electric field, dust collecting pole plate gyrates under the central shaft effect that motor connects, just scraped into flue-dust retainer when forwarding the nonmetal dust that adsorbs on the dust collecting pole plate behind the rubber flap district to by rubber flap, so circulation is carried out, thereby realizes that metal efficiently separates with nonmetal dust.Because dust collecting pole plate is constantly maintained clean relatively state behind the drag flight descaling always, thereby keep electric field to be in the duty of an efficient stable all the time, thereby realize the stability and the high efficiency of dust collection effect, be used in effect on the separator and be and nonmetally the metallic dust purity that flows into the metal collecting region is improved greatly by the efficient absorption of dust collecting pole plate, thus realize metal and nonmetal dust efficiently separate continuous operation with equipment.
The utility model not only can effectively solve the nonmetal automatic ash removing problem of equipment, do not influence simultaneously the continuous running of equipment, the dust collecting pole plate cleanliness factor of equipment maintains a level preferably all the time, thereby can realize the effect of the nonmetal dust of absorption of stability and high efficiency, metal and nonmetallic purity and fractional dose significantly improve, and dust is controlled easily in the separation process, and equipment line service amount and difficulty are all very little, be difficult for forming floating dust, can realize automatic operation simultaneously.
Claims (6)
1, a kind of high-pressure electrostatic separator, comprise body and the dust collecting pole plate that can rotate continuously, it is characterized in that: described dust collecting pole plate is a plurality of and fixing by the central shaft serial connection, and described central shaft is connected to motor, between described per two dust collecting pole plates a discharge electrode and scraper plate is installed.
2, high-pressure electrostatic separator according to claim 1, it is characterized in that: described dust collecting pole plate is a disk, and the insulating sleeve of two same spacings is installed between the disk.
3, high-pressure electrostatic separator according to claim 1, it is characterized in that: it is concentric annulus with central shaft that described discharge electrode is one, distributing equably all around of annulus is provided with the discharge prickle on same plane, do not establish the discharge prickle but reserve a fan type zone.
4, high-pressure electrostatic separator according to claim 3, it is characterized in that: the extension site of described discharge prickle is connected respectively on the unidirectional electrode connecting piece, the two ends of electrode connecting piece are fixed on the shell of equipment by insulated terminal again, and the discharge electrode inner ring sleeve is on the between centers insulating sleeve but keep certain clearance.
5, high-pressure electrostatic separator according to claim 3 is characterized in that: be provided with a rubber flap between the every two-layer dust collecting pole plate of position, described fan type zone correspondence.
6, high-pressure electrostatic separator according to claim 5, it is characterized in that: the left upper end of described body is provided with charging aperture, and its corresponding vertical direction lower end is provided with the metallic dust collecting region, and nonmetal dust collecting region is located at the bottom righthand side of body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201961139U CN201147722Y (en) | 2007-12-17 | 2007-12-17 | High-pressure electrostatic sorting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201961139U CN201147722Y (en) | 2007-12-17 | 2007-12-17 | High-pressure electrostatic sorting machine |
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| Publication Number | Publication Date |
|---|---|
| CN201147722Y true CN201147722Y (en) | 2008-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201961139U Expired - Lifetime CN201147722Y (en) | 2007-12-17 | 2007-12-17 | High-pressure electrostatic sorting machine |
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| CN (1) | CN201147722Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728454A (en) * | 2012-06-19 | 2012-10-17 | 罗健泉 | Pretreatment device for domestic garbage incineration without dioxin being generated |
| CN105344484A (en) * | 2015-12-11 | 2016-02-24 | 张子生 | Arrangement device and arrangement method for pin electrodes in high-voltage electrostatic separator |
| CN107096053A (en) * | 2017-06-16 | 2017-08-29 | 福州金慧健康科技有限公司 | A kind of portable free radical generating means |
-
2007
- 2007-12-17 CN CNU2007201961139U patent/CN201147722Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728454A (en) * | 2012-06-19 | 2012-10-17 | 罗健泉 | Pretreatment device for domestic garbage incineration without dioxin being generated |
| CN105344484A (en) * | 2015-12-11 | 2016-02-24 | 张子生 | Arrangement device and arrangement method for pin electrodes in high-voltage electrostatic separator |
| CN107096053A (en) * | 2017-06-16 | 2017-08-29 | 福州金慧健康科技有限公司 | A kind of portable free radical generating means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN YIHEQIN ENVIRONMENTAL PROTECTION TECHNOLO Free format text: FORMER OWNER: CAO SHIYI Effective date: 20110902 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518055 SHENZHEN, GUANGDONG PROVINCE TO: 518105 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110902 Address after: 518105, Guangdong, Baoan District, Songgang Shenzhen street, Luotian Third Industrial Zone Third, south of the first floor Patentee after: Shenzhen Yiheqin Environmental Protection Technology Co.,Ltd. Address before: 518055 Pearl Village, Shenzhen, Guangdong, Nanshan District Patentee before: Cao Shiyi |
|
| CX01 | Expiry of patent term |
Granted publication date: 20081112 |
|
| CX01 | Expiry of patent term |