CN88101764A - Electrostatic lens type electric dust-collecting method and equipment - Google Patents
Electrostatic lens type electric dust-collecting method and equipment Download PDFInfo
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- CN88101764A CN88101764A CN88101764.7A CN88101764A CN88101764A CN 88101764 A CN88101764 A CN 88101764A CN 88101764 A CN88101764 A CN 88101764A CN 88101764 A CN88101764 A CN 88101764A
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Abstract
The present invention is the equipment that utilizes electrostatic lens type electric dust-collecting method and application thereof.Its technical solution is: allow pre-charged dust enter the lens-type electric field that three electrodes are formed, under the effect of lens-type electric field, pre-charged dust changes the former direction of motion to the heteropolarity electrode movement, pass the lens mouth that is arranged in electric field and be recovered, the dust collection device of making according to this method with different in nature particle encounter, cohesion, knot grain, heavy dirt, the result of dust collector pole emission.Its nonrecurring charge small investment has been removed the mechanical vibrator dust cleaner, and device structure is simplified, and solid durable, easy to maintenance, the resistivity that precise and tiny dust is reclaimed dust does not require.
Description
The invention belongs to the electrostatic dust collection field, it is the equipment that utilizes electrostatic lens type electric dust-collecting method and application thereof.
Existing electrostatic dust collection method is continued to use the principle of traditional F, G, Cottrell type cottrell basically and is improved and develop.This electrostatic dust collection method is: make (not charged) neutral pre-charged dust, enter dust collection electric field with air-flow again, make the electrode that gathers dust different with corona discharge electrode polarity, charged dust is subjected to the repulsion of same sex electrode, adsorbed by different in nature electrode, re-use the rapping dust cleaner and reclaim.This electrostatic dust collection method is difficult for controlling anti-corona and dust secondary fly-up, and dust collection electric field requires highly to power supply, and the resistivity of absorbed dust is had certain requirement.Use electrostatic dust collection equipment that this electrostatic dust collection method gathers dust mainly by the pre-charged utmost point, main corona discharge electrode, dust collector pole, high-voltage dc pulse power, several most of compositions of rapping dust cleaner and ash bucket, the pre-charged utmost point places before the dust collection electric field, corona discharge electrode and dust collector pole are connected high-voltage dc pulse power and are formed dust collection electric field, charged dust is caught, the direction of dust collection electric field promptly is absorbed when pre-charged dust enters dust collection electric field perpendicular to the air motion direction of carrying dust (consulting " electrostatic precipitator design specification " K, Darby work).This electrostatic dust collection equipment has the characteristics of (pointed as document NEW TRENDS ELECTOSTATIC PRECIPITATION): wide spacing, charged in advance, pulse power supply, but this equipment is not because of controlling the secondary fly-up of anti-corona and dust, cause the average dust-collecting efficiency of main frame in the cycle of operation not high, new equipment dust-collecting efficiency height, but after using a period of time, because the structure of dust collection electric field itself, must use the clear dirt of mechanical vibrator dust cleaner, absorbed dust has corrosiveness again simultaneously, electrode is sustained damage, the dust collection device life cycle can not cooperate the main frame cycle of operation, thereby the dust-collecting efficiency of entire equipment is reduced.Be equipped with mechanical vibrator dust cleaner and high-voltage dc pulse power on the other hand, entire equipment is involved great expense.The difficulty of overhaul of the equipments is simultaneously had any problem to the dust absorbing and eliminating of high specific resistance and low resistivity.Install one deck aperture plate additional in front, can weaken anti-corona, but also just solve local problem near the electrode that gathers dust.
Purpose of the present invention, be exactly at above-mentioned deficiency, the aspect of the dust collection device that a kind of electrostatic lens type collecting method is provided and uses this method to solve the existing above-mentioned shortcoming of collecting method and to be difficult to adapt to, can eliminate anti-corona and cancellation mechanical vibrator dust cleaner, reduction absorbs precise and tiny fine powder to the high request of power supply, improves the average dust-collecting efficiency of equipment, enlarge the adaptive capacity and the range of application of electrostatic dust collection equipment, reduce equipment manufacturing cost and reduce maintenance cost.
Technical solution of the present invention, adopt lens-type electric field to gather dust, allow pre-charged dust vertically pass through the lens-type electric field of forming by three electrodes with air-flow, add different high direct voltages for three electrodes, both can apply voltage, also can use the three electrode mode making alive of two power supplys pair of electrodes.Making an electrode is main corona discharge electrode, another electrode is a dust collector pole, electrode between two electrodes is the lens utmost point, under the effect of lens-type electric field, charged dust changes the former direction of motion to the heteropolarity electrode movement, pass lens utmost point lens mouth and with different in nature ion collision, cohesion, knot grain, the heavy dirt of dust collector pole emission, make the passage that becomes the air-flow that carries charged dust between the corona discharge electrode and the lens utmost point, allow the lens utmost point and dust collector pole become the electricity space of gathering dust.Lens-type electric field is that non-uniform electric field makes the extremely middle lens mouth of lens be sealed by electric field, the charged dust that passes the lens mouth enters electricity that the lens utmost point and dust collector pole the constitute space of gathering dust, can only in gathering dust the space, electricity be subjected to the effect of lens-type electric field to collide aggegation repeatedly, form big grain, finally the active force that overcomes lens-type electric field and dust collection electric field because of deadweight sinks, fall into ash bucket, or few partly agglomerator surface, by deadweight or unbalanced stress and collapse, the component part of using the dust collection device of this collecting method has the pre-charged utmost point, main corona discharge electrode, dust collector pole, ash bucket, shell, it is characterized in that, lens-type electric field is by main corona discharge electrode, the lens utmost point, dust collector pole and DC high-voltage power supply constitute, the lens utmost point is between main corona discharge electrode and the dust collector pole, the lens mouth that lens have several to allow charged dust to pass through on extremely, shape can have difference, it between the main corona discharge electrode and the lens utmost point pre-charged dust gas channel, the lens utmost point, dust collector pole, deep bead and cover plate constitute the dust chamber of sealing, dust chamber communicates with ash bucket down, and ash bucket is fixed on the shell.Its operation principle is, because it is a uneven electrostatic field that dust collector pole, corona discharge electrode, the lens utmost point connect the lens-type electric field that forms behind the different dc high voltages, its power line is inhomogeneous curve distribution, equipotential surface is protruded to weak electric field as described in Figure 1, non-uniform electric field produces the effect that similar optical lens focuses on to charged dust near the lens opening, makes a large amount of charged dust enter into dust chamber because of a particle flux scioptics mouth of effect formation that becomes of electrostatic lens type electric field.Dust collector pole sends an amount of corona, distribute an amount of ion, make the particle encounter of itself and lotus heteropolarity electricity, in and the result of repeated multiple times, make the dust aggegation form bigger granule, so that increasing, when this electric weight minimizing, kinetic energy reduces, weight increases, in case after its deadweight has overcome electric field force and air viscous force, will be recovered by the ash bucket that communicates with dust chamber because of the deadweight sedimentation.The lens mouth is sealed by non-uniform electric field on the other hand, and the charged dust that passes lens utmost point scioptics mouth is again got back in the gas channel that carries charged dust, has guaranteed dust collection effect.
The invention has the advantages that, adopt the electrostatic lens type collecting method, the ratio resistance of dust is not had selectivity, range of application is wide, the dust-collecting efficiency height, and can keep η 〉=99% for a long time, and need not rapping process, eliminated the secondary fly-up that anti-corona has solved dust again.Use the equipment of this method dedusting, its disposable investment cost reduces 10%-15% than existing electrostatic dust collection equipment, has removed the mechanical vibrator dust cleaner, and device structure is simplified, and is solid durable, easy to maintenance, maintenance cost is low.Further perfect to this equipment, can reclaim ultra tiny dust, this is that existing receipts dust catcher is out of the question.
Fig. 1, the lens-type electric field schematic diagram
Fig. 2, equipment principle schematic diagram of the present invention
Fig. 3, device structure schematic diagram front view of the present invention
Fig. 4, device structure schematic diagram vertical view of the present invention
Below, further describe of the present invention with reference to the accompanying drawings:
As shown in Figure 1, main corona discharge electrode 1, the lens utmost point 2, dust collector pole 3 constitute lens-type electric field, add different voltage U 1, U2, U0 for respectively three electrodes, form electric field E1, E2, are inhomogeneous curve distribution near the lens mouth.
As shown in Figure 2, use the equipment of electrostatic lens type electric dust-collecting method, by the main corona discharge electrode 1 of some row, the lens utmost point 2, dust collector pole 3, the staggered lens-type electric field of forming several for the usefulness of gathering dust, wherein per two row lens utmost points 2 and a row dust collector pole 3 do not draw with deep bead 6, upper cover plate 8(herein) formation dust chamber 5, main corona discharge electrode 1 places gas channel 7, the direction of pre-charged dust air current flow is carried in → symbolic representation, high-voltage DC power supply meets U1 for main corona discharge electrode 1 and meets U2 for the lens utmost point 2, meet U0 for dust collector pole 3.
As shown in Figure 3, Figure 4, the present invention is by the pre-charged utmost point 13, compositions such as main corona discharge electrode 1, the lens utmost point 2, dust collector pole 3, deep bead 6, upper cover plate 8, ash bucket 9, shell 10, binding post 11, framework 12, binding post 11 is contained on the shell 10 and with shell 10 and insulate, binding post 11 is made of metal rod and quartz socket tube, also can be made of with metal rod high voltage bearing porcelain insulator; The end of metal rod on the binding post 11 in shell 10 is connected with framework 12, pass through bolted, on the framework 12 of several mutually insulateds, be fixed with main corona discharge electrode 1 respectively, the lens utmost point 2, dust collector pole 3, by the two row lens utmost points 2, one row dust collector pole 3, deep bead 6, upper cover plate 8 constitutes dust chamber 5, dust chamber 5 times communicates with ash bucket 9, dust chamber 5 has several, the end of metal rod on high-voltage DC power supply and the binding post 11 outside shell 10 joins, give each electrode making alive in shell 10 respectively by binding post 11, the pre-charged utmost point 13 is contained in the front portion of dust collection electric field, and framework 12 is to be welded by certain size with angle bar or band steel; Main corona discharge electrode 1, dust collector pole 3 are rectangular or shaft-like, and slightly make on the surface, jagged or random coil, sawtooth; Having lens mouth 4 on the lens utmost point 2 or leave lens mouth 4 between per two lens utmost points 2, is gas channel 7 between two dust chambers 5.
Claims (7)
1, electrostatic lens type electric dust-collecting method, make pre-charged dust, it is characterized in that, adopt lens-type electric field to gather dust, allow pre-charged dust pass through the lens-type electric field of forming by three electrodes, add different high direct voltages for three electrodes, making an electrode is main corona discharge electrode, another electrode is that the electrode between dust collector pole, two electrodes is the lens utmost point, allow pre-charged dust in lens-type electric field, change the former direction of motion to the heteropolarity electrode movement, pass lens in the middle of extremely the lens mouth and the different in nature ion collision, cohesion, the knot grain that send with dust collector pole, drown oneself.Make the passage that becomes the air-flow that carries charged dust between the main corona discharge electrode and the lens utmost point, the lens utmost point and dust collector pole become the electricity space of gathering dust, the inhomogeneous electric force lines distribution of lens-type electric field makes the lens mouth be sealed by electric field, the gather dust dust in space of inspiration collides aggegation mutually repeatedly, form big grain, the active force that overcomes lens-type electric field by deadweight falls into ash bucket and is recovered, and minority is heavy gathers at the dust of electrode surface and collapse by deadweight or unbalanced stress.
2, electrostatic lens type electric dust-collecting method according to claim 1 is characterized in that, high direct voltage only puts on pair of electrodes or (two power supplys) three electrodes of lens-type electric field.
3, a kind of equipment of electrostatic lens type electric dust-collecting method of application rights requirement 1, the pre-charged utmost point is arranged, main corona discharge electrode, dust collector pole, ash bucket, shell, it is characterized in that, lens-type electric field is by main corona discharge electrode 1, the lens utmost point 2, dust collector pole 3 and high-voltage DC power supply constitute, the lens utmost point 2 is between main corona discharge electrode 1 and the dust collector pole 3, the lens mouth 4 that has several to allow charged dust to pass through on the lens utmost point 2, it between the main corona discharge electrode 1 and the lens utmost point 2 passage 7 of the air-flow of pre-charged dust, the lens utmost point 2, dust collector pole 3, deep bead 6 and upper cover plate 8 are formed the dust chamber 5 of sealing, dust chamber 5 times communicates with ash bucket 9, ash bucket 9 is fixed on the shell 10, high-voltage DC power supply by binding post 11 respectively be installed in the shell 10, several framings 12 that are fixed with the mutually insulated of each electrode join.
4, the equipment of the electrostatic lens type electric dust-collecting method of a kind of application rights requirement 1 according to claim 3 is characterized in that, main corona discharge electrode 1, lens mouth 4, dust collector pole 3 form electrostatic lens type electric field and dust chamber electric fields.
5, a kind of application rights according to claim 3 requires the equipment of 1 electrostatic lens type electric dust-collecting method, it is characterized in that dust collector pole 3, main corona discharge electrode 1 are rectangular or shaft-like, and slightly make on the surface, jagged or irregular spiral and sawtooth.
6, the equipment of the electrostatic lens type electric dust-collecting method of a kind of application rights requirement 1 according to claim 3 is characterized in that binding post 11 is to be made of metal rod and quartz socket tube, also can be made of with metal rod high voltage bearing porcelain insulator.
7, the equipment of the electrostatic lens type electric dust-collecting method of a kind of application rights requirement 1 according to claim 3 is characterized in that dust chamber 5 has several.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88101764 CN1008795B (en) | 1988-03-26 | 1988-03-26 | Electrostatic lens type electric dust-collecting method and its apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88101764 CN1008795B (en) | 1988-03-26 | 1988-03-26 | Electrostatic lens type electric dust-collecting method and its apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN88101764A true CN88101764A (en) | 1988-11-09 |
| CN1008795B CN1008795B (en) | 1990-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88101764 Expired CN1008795B (en) | 1988-03-26 | 1988-03-26 | Electrostatic lens type electric dust-collecting method and its apparatus |
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| Country | Link |
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| CN (1) | CN1008795B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101199951B (en) * | 2006-12-15 | 2012-03-07 | 福建东源环保有限公司 | Configuration scheme of lens style high voltage electrostatic dust collection electric field |
| CN105170328A (en) * | 2015-10-29 | 2015-12-23 | 许玉蕊 | Three-electrode barrel type electric dust removal device |
| CN106238209A (en) * | 2016-08-31 | 2016-12-21 | 江苏宏标科技有限公司 | A kind of inserting air purifier |
| CN107335544A (en) * | 2017-08-15 | 2017-11-10 | 北京中和锦程科技有限公司 | Combined ion lens ion wind generation apparatus |
| CN107362906A (en) * | 2017-08-15 | 2017-11-21 | 安徽卓煌机械设备有限公司 | A kind of hanging-rod type cement producting material milling electric collecting device |
| CN108405184A (en) * | 2018-02-06 | 2018-08-17 | 常州大学 | A kind of industrial waste gas fine particle removing device |
| CN108421637A (en) * | 2018-02-06 | 2018-08-21 | 常州大学 | Industrial waste gas fine particle coalescence removes and the total system of UTILIZATION OF VESIDUAL HEAT IN |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886828A (en) * | 2010-06-29 | 2010-11-17 | 宁波方太厨具有限公司 | Static lampblack purification device |
-
1988
- 1988-03-26 CN CN 88101764 patent/CN1008795B/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101199951B (en) * | 2006-12-15 | 2012-03-07 | 福建东源环保有限公司 | Configuration scheme of lens style high voltage electrostatic dust collection electric field |
| CN105170328A (en) * | 2015-10-29 | 2015-12-23 | 许玉蕊 | Three-electrode barrel type electric dust removal device |
| CN106238209A (en) * | 2016-08-31 | 2016-12-21 | 江苏宏标科技有限公司 | A kind of inserting air purifier |
| CN107335544A (en) * | 2017-08-15 | 2017-11-10 | 北京中和锦程科技有限公司 | Combined ion lens ion wind generation apparatus |
| CN107362906A (en) * | 2017-08-15 | 2017-11-21 | 安徽卓煌机械设备有限公司 | A kind of hanging-rod type cement producting material milling electric collecting device |
| CN108405184A (en) * | 2018-02-06 | 2018-08-17 | 常州大学 | A kind of industrial waste gas fine particle removing device |
| CN108421637A (en) * | 2018-02-06 | 2018-08-21 | 常州大学 | Industrial waste gas fine particle coalescence removes and the total system of UTILIZATION OF VESIDUAL HEAT IN |
| CN108405184B (en) * | 2018-02-06 | 2020-05-26 | 常州大学 | Industrial waste gas fine particulate matter removing device |
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| Publication number | Publication date |
|---|---|
| CN1008795B (en) | 1990-07-18 |
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