CN87106456A - Use the efficient dust collector of multiple dust-collecting mechanism - Google Patents
Use the efficient dust collector of multiple dust-collecting mechanism Download PDFInfo
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- CN87106456A CN87106456A CN87106456.1A CN87106456A CN87106456A CN 87106456 A CN87106456 A CN 87106456A CN 87106456 A CN87106456 A CN 87106456A CN 87106456 A CN87106456 A CN 87106456A
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Abstract
A kind of dust-precipitator that the principles of gathering dust such as whirlwind, static, inertia are organically combined.The first electric field corona wire is set in the inside of common whirlwind tube, the one second horizontally disposed electric field corona wire is set above the air outlet of whirlwind tube, in the outside of whirlwind tube is the outer tube of making dust collector pole, between outer tube and whirlwind tube, one columnar cohesion electrode is set, the bottom of outer tube is an ash bucket, and the blinds dust collecting electrode is installed in the middle of the ash bucket.During use, dust-contained airflow tangentially enters the whirlwind tube from air inlet, and through the whirlwind tube, the effect of first, second corona field, cohesion electric field and blinds dust collecting electrode is discharged from air outlet at last.
Description
The present invention is a kind of dust-precipitator, can be applicable to gathering dust of equipment such as shaft kiln and dryer in the cement industry, also can be widely used in the dedusting of the industrial equipment of industrial departments such as building materials, chemical industry, metallurgy, electric power.
Initial vertical electrostatic precipitator is the tubular dust collector pole in garden arranged round its of the corona wire arranged of vertical direction and one and forming.Corona discharge electrode and dust collector pole connect high-voltage DC power supply respectively, and dust-contained airflow enters from pipe bottom, garden, and the corona through corona wire makes dust charged.Under the electric field action between corona discharge electrode and the dust collector pole, be adsorbed to dust collector pole by charged dust, thereby reach dust collection effect, the air-flow after gathering dust is discharged by the top of garden pipe.Because the air motion direction of this dust-precipitator is opposite with the dust settling direction, dust-collecting efficiency is lower, and owing to have higher height, the I﹠M inconvenience, so people carry out all improvement to it always.
Up-to-date improvement is provided by Chinese patent CN86104221A.By cyclone dust collection tube and the polyphone that gathers dust of electricity are used, and be improved to multitube two-region electricity by being gathered dust in the single tube district of common vertical electric dust-collecting and gather dust, improved dust-collecting efficiency.The primary structure of this dust-precipitator is two concentric garden pipes, at interior tube hub place, one corona wire is installed, in pipe and outer tube by ash bucket UNICOM each other, a plurality of two ends are installed between interior pipe and the outer tube have zigzag or aciculiform etc. and can taper off to a point the garden tube that discharges, be connected with suspension rod each other as discharge electrode.Air-flow tangentially enters interior pipe from air inlet, forms electric whirlwind in interior pipe electric field, again through ash flue bucket to outer tube, discharge from air outlet at last.At interior pipe, mainly contain two kinds of effects of cyclone dust collection and electrostatic dust collection, then rely on electrostatic dust collection at outer tube.
Use this dust-precipitator,, also have following problem: at first be because interior pipe does not constitute complete rotoclone collector, do not give full play to the cyclone dust collection effect though have series of advantages.Because interior Guan Weizhi garden pipe, the Lower Half of pipe in air-flow is threaded to, seriously spread at the inside tube hub of air-flow position, and whirlwind obviously weakens, and the cyclone dust collection effect reduces.And because the air-flow in the interior pipe enters outer tube through ash bucket, the dust settling that part should be fallen in the ash bucket does not get off.What next was that air-flow mainly carries in the outer tube is fine dust, the air motion direction is opposite with the dust settling direction, make and be adsorbed on the shaking sedimentation that falls of dust on the dust collector pole through the electrostatic dust collection effect and enter in the ash bucket process, influenced by ascending air, the part dust changes the direction of motion, reenter in the air-flow, move upward, reduced the dust-collecting efficiency of outer tube electric field with ascending air.The 3rd, in order to guarantee certain dust-collecting efficiency, this cottrell still need have higher height, the structure and the complexity that seems, I﹠M inconvenience, particularly still need be provided with in the outer tube by garden tube discharge, that connect with suspension rod each other that can taper off to a point such as zigzag or aciculiform and make discharge electrode, give processing, make, install with use and all bring certain difficulty.
The purpose of this invention is to provide a kind of new-type dust-precipitator, it is electrostatic dust collection, cyclone dust collection and inertia to be gathered dust organically combine, make it to have higher dust-collecting efficiency, particularly cyclone dust collection part, except that main feature with common rotoclone collector, still needing partly produces corona and electrostatic dust collection effect in cyclone dust collection, and particularly overcomes the air motion direction shortcoming opposite with the dust settling direction, and to prevent dust with the air-flow sedimentation by the air-flow band to air outlet.In addition, make the project organization compactness of whole dust-precipitator, the dust-collecting efficiency height, power supply is convenient, and each critical piece is safe and reliable, and the each several part air-flow does not disturb mutually.
Design of the present invention has utilized electrostatic principle, fluid mechanics principle and principle of inertia.In the central authorities of common rotoclone collector, be equipped with a corona discharge electrode, be called the first electric field corona wire.In the outside of rotoclone collector one garden shape outer tube is housed, between the outer cylinder body of outer tube and rotoclone collector, is equipped with the cohesion electrode of a garden tubular.And arrange a corona wire in whirlwind tube air outlet upper horizontal, be called the second electric field corona wire.The first electric field corona wire, the second electric field corona wire and cohesion electrode are connected to each other, can be by same power supply power supply.Ground connection such as cyclone muff, garden shape outer tube, ash bucket keep zero potential, make they and corona discharge electrode (comprising the cohesion electrode) form space electric field.Bottom at the whirlwind tube is equipped with valve, and by it, the dust of whirlwind tube bottom can enter ash bucket.When dust-contained airflow tangentially enters the whirlwind tube from air inlet, promptly circumnutation in the whirlwind tube is subjected to action of centrifugal force, and the dust that particle diameter is bigger is thrown toward barrel and degradedness slides along whirlwind tube barrel, arrives the bottom of whirlwind tube.The air-flow that rotation descends is drawn close to whirlwind tube center with the contraction of garden awl at the garden of whirlwind tube wimble fraction, from going up spiral and rise down, goes out the whirlwind tube at last then.In said process because whirlwind tube inside is equipped with corona wire, make dust descend with air-flow and uphill process in twice charged.Cohesion of a spot of space and part take place and are adsorbed on whirlwind tube inwall under the electric field force effect between corona wire and the whirlwind tube in charged dust.Go out the air-flow of whirlwind tube, still contain the less dust of particle (wherein part is by charged), through the corona charging effect of the second electric field corona wire, it is charged to reach capacity substantially again.Thereafter, contain the air-flow than fine dust, enter in the electric field between whirlwind tube, cohesion electrode, the outer tube, charged dust produces space cohesion and electrode cohesion under the effect of electric field force, and most of dust is attracted on the inwall of whirlwind tube outer tube wall and outer tube.Thick grit after other cohesions falls into ash bucket with air-flow.The dust that still contains minute quantity in the gas, the blinds dust collecting electrode absorption in being arranged on ash bucket arrives the ash bucket bottom at last.Through the air-flow after gathering dust, discharge from exhaust outlet at last.
Use the present invention, have following obvious advantage:
1, installs the first electric field corona wire at whirlwind tube centre bit, neither influence of efficiently the gather dust effect of whirlwind tube to thick grit, again because of the effect of electric field force, increased capture effect than dustshot, therefore enlarged the scope of application of dust-precipitator, improved the dust-collecting efficiency of the first order grit particle diameter in the dusty gas.
2, in the whirlwind tube dusty gas downwards, upwards successively twice through first corona field, can improve the service efficiency of corona wire, guarantee that dust-collecting efficiency can meet design requirement, shorten the length of corona wire, for design volume is little, the dust-precipitator that efficient is high has been created condition.
3, the direction of motion of dust-contained airflow in dust-precipitator is consistent with the sedimentation direction of dust grit, has avoided the dust grit to be subjected to the inverted draft effect and causes secondary fly-up, has overcome the ubiquitous problem of many vertical electrostatic precipitators.
4, since in the whirlwind tube the first electric field corona wire length generally can arrive whirlwind tube garden tube and the cone place that joins, thereby can utilize whirlwind tube barrel as the first electric field dust collector pole.At the whirlwind tube bottom airlock is installed, solved the existing air-flow of Chinese patent CN86104221A to center diffusion and cause cyclone dust collection efficient to reduce problem, also solved it owing to air-flow enters the problem that outer tube causes part dust grit can not sedimentation to enter ash bucket through ash bucket.
5, compact conformation is reasonable.Since the corona wire that dust-contained airflow passes through in the whirlwind tube for twice, and above whirlwind tube air outlet, be provided with corona wire, make that dust can be saturated charged in less spatial dimension, thereby dwindled the volume of whole dust-precipitator.In addition, various dust-collecting mechanisms utilize alternately, and the modes of gathering dust such as whirlwind, inertia, static are organically combined, and have improved dust-collecting efficiency effectively.
6,, thereby keep equipotential owing to the first electric field corona wire, the second electric field corona wire and cohesion electrode etc. in the whirlwind tube all are connected to each other, can be by same power supply power supply.And equal ground connection such as whirlwind tube, outer tube, ash bucket, blinds dust collecting electrode keep zero potential, thereby it are very convenient to power.
Best enforcement of the present invention can illustrate in conjunction with the accompanying drawings:
Fig. 1 is a structure principle chart of the present invention.
Fig. 2 is that the present invention recommends the second electric field corona wire front view that uses.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is a cohesion electrode front view of the present invention.
Fig. 5 is the vertical view of Fig. 4.
Fig. 6 is the planform schematic diagram of blinds dust collecting electrode of the present invention (circle).
Fig. 7 is that two gardens awl that the present invention recommends to use flashes the valve arrangement schematic diagram.
The present invention designs on the basis of rotoclone collector, and primary structure is referring to Fig. 1.
Inside at the whirlwind tube 4 of rotoclone collector is equipped with a corona wire 18, is called the first electric field corona wire, is shaped on prickle 17 in the Lower Half of corona wire, in order to produce corona discharge.The insulating sleeve 1 of this corona wire top and power supply is fixing.In the center of top position of whirlwind tube, the insulating cylinder 19 that uses insulating materials to make is housed, as the air outlet of whirlwind tube, air-flow can be entered in the whirlwind tube among the outer tube 6.Above insulating cylinder, be furnished with a corona wire 21, be called the second electric field corona wire, recommend the corona wire of use garden annular, the garden ring uses spoke to be suspended on the insulating sleeve 1, upwards is being shaped on prickle 3 on the plane at ring place, garden and above perpendicular to the garden hoop, in order to produce corona discharge.Certain altitude on prickle 3 has a top board 2, and itself and outer tube 6 are tightly connected, in order to constraint air motion direction.Between whirlwind tube 4 and outer tube 6, a garden tube is arranged, as cohesion electrode 5.Whirlwind tube 4, cohesion electrode 5 and outer tube 6 three's arranged concentric, and condense electrode and use insulated column 16 to be supported on the built-in beam 8, and link to each other with the second electric field corona wire by connecting lead 20.Below built-in beam 8, be ash bucket 13, ash bucket is inner to be hung with one group of blinds dust collecting electrode 14 by suspension rod (not drawing among the figure).A uppermost circle blinds dust collecting electrode is to hang on the built-in beam by suspension rod, and each circle of the blinds dust collecting electrode below it then is that the suspension rod by separately hangs on the blinds dust collecting electrode above it.At the sidewall of ash bucket, electric heater 9 is housed, in case the dust-precipitator dewfall.In addition,, air valve 10 is housed, recommends to use two gardens awl to flash valve or flap valve etc., make the dust of whirlwind tube bottom enter ash bucket and not cause air leakage phenomena by it in the bottom of whirlwind tube.In the exit of air valve, anti-ash cover 11 also is installed, fly upward to prevent the dust that enters ash bucket by the whirlwind tube.Dust in the ash bucket is discharged by revolution unloading valve 12.In this dust-precipitator course of work, dust-contained airflow directly tangentially enters the whirlwind tube by air inlet, and clean gas is then discharged by the air outlet 15 that is installed on the ash bucket.Whole dust-precipitator is by support foot 7 supportings, by insulating sleeve 1 power supply.
Dust-contained airflow tangentially enters the whirlwind tube and is rotated down along inwall from air inlet and enters conical section (outer vortex), forwards the central space of cone then from here on to and rotates up (interior vortex) to insulating cylinder.In the gas cyclone process, dust granules is pushed to inwall by centrifugal force, and sinks to landing to the whirlwind tube bottom in the influence of gravity effect and outer vortex.For adapting to the needs of electrostatic dust collection, also in order to improve the efficient of cyclone dust collection, the present invention recommends to use the whirlwind tube of long cone form.Be installed in the first electric field corona wire at tube position, whirlwind tube garden, downward at air-flow, all charged in the process that moves upward to dust, produce certain electrostatic dust collection effect simultaneously.The general available metal pipe of the first electric field corona wire (as running water pipe) is made, length is advisable to arrive whirlwind tube garden tube and the cone place of joining, in order to avoid produce strong spark discharge and cause the voltage of whole dust-precipitator to descend at conical section, its upper end is suspended on the insulating sleeve, on the position below the insulating cylinder, be shaped on to around radially prickle.On this section first electric field corona wire of bottom, generally be not shaped on prickle from insulating sleeve to insulating cylinder, this is for fear of strong spark discharge.Insulating cylinder system makes with insulating materials, and the one, as the outlet of whirlwind tube, the 2nd, isolate electric field, guarantee that the voltage of dust-precipitator is stable.Go out the air-flow of insulating cylinder, enter second electric field region, under the effect of the second electric field corona wire, it is charged to reach capacity.The second electric field corona wire is horizontally disposed, recommends use garden loop configuration, is shaped on several metal spokes on the radial direction of garden ring, and the metal spoke is connected with insulating sleeve, in order to hang the garden ring and to power to the garden ring.On ring and spoke, all be shaped on the level and the prickle of direction vertically upward, as shown in Figures 2 and 3.Ring is generally with distance, three sizes such as ring and the distance of top cover and the radius of whirlwind tube etc. of outer tube and equates or close that so that first electric field, second electric field reaches corona discharge simultaneously.Dust-contained airflow is after the second electric field corona charging, because the constraint of top cover, change the direction of motion, in outer tube, move to following, enter the cohesion electric field region of forming by whirlwind tube, cohesion electrode and outer tube (this district is approximate uniform electric field), here, the space cohesion takes place in charged dust, and moves to outer tube or whirlwind drum outer wall under the electric field force effect.The structure of cohesion electrode is a metal garden tube, as Fig. 4, shown in Figure 5.Its upper and lower periphery uses first steel or garden pipe etc. to cover the limit, to prevent producing point discharge at the cohesion electric field region, causes dust-precipitator voltage to reduce.Continue to move downward through the air-flow that condenses after electric field gathers dust, run into the blinds dust collecting electrode that is installed in the ash bucket, (structure of blinds dust collecting electrode as shown in Figure 6, it is a truncate positive garden conical surface shape), dust is subjected to the inertia effect of gathering dust and electrostatic adsorption is attracted on the blinds collecting plate, and clean gas is then discharged outside the dust-precipitator through air outlet.
Functional for making cyclone dust collection partly lock wind, again can be in time the dust that is collected in its bottom be discharged the whirlwind tube and enter ash bucket, in the bottom of whirlwind tube air valve is housed, Fig. 7 is two gardens that the present invention recommends to use and bores the version of flashing valve.By air valve, when the dust of whirlwind tube bottom reaches a certain amount of, can under the gravity effect, open valve successively, make dust enter ash bucket.In addition, can adorn anti-ash cover in the bottom of air valve, to prevent secondary fly-up.
On the outer tube wall of this dust-precipitator, several electromagnetic vibrators or vibrating motor (not drawing among Fig. 1) have been installed.Because the each several part of dust-precipitator connects into an integral body, the dust releasing that is adsorbed on each wall is entered among the ash bucket by its vibration.
For preventing this dust-precipitator generation dewfall phenomenon, except that adding, the outside at whole dust-precipitator applies the heat-barrier material, and the present invention also is provided with electric heater in ash bucket, come heated air stream by it, and steam temperature is remained on more than the dew point.
At last, the dust of ash bucket is discharged dust-precipitator by the revolution unloading valve of ash bucket bottom.
Claims (10)
1, a kind of dust-precipitator of using mechanism making such as whirlwind, static, inertia, by air inlet, air outlet, whirlwind tube (4), ash bucket (13), support foot (7), unloading valve (12), outer tube compositions such as (6).It is characterized in that being equipped with the first electric field corona wire (18) in whirlwind tube inside, top at the air outlet insulating cylinder (19) of whirlwind tube is provided with the second electric field corona wire (21), between whirlwind tube (4) and outer tube (6), be provided with the cohesion electrode (5) of a garden tubular.The first electric field corona wire, the second electric field corona wire and cohesion electrode three are connected to each other, and adopt same power supply power supply.
2, dust-precipitator as claimed in claim 1 is characterized in that the second electric field corona wire (21) is a garden annular electro hachure, and it is suspended on the insulating sleeve (1) by width of cloth bar, the horizontal direction on garden ring and spoke and vertically upward direction be shaped on prickle (3).And the distance of dust-precipitator top cover (2) is encircled in the garden, and distance and whirlwind tube (4) garden tube radius three size partly that dust-precipitator outer tube (6) is encircled in the garden are equal or close.
3, dust-precipitator as claimed in claim 1 or 2 it is characterized in that the length of the first electric field corona wire (18) is advisable to arrive whirlwind tube garden tube part and the conical section place of joining, and the part below insulating cylinder (19) just is shaped on prickle.
4, dust-precipitator as claimed in claim 1 or 2 is characterized in that being provided with blinds dust collecting electrode (14) in ash bucket (13).
5, dust-precipitator as claimed in claim 3 is characterized in that being provided with blinds dust collecting electrode (14) in ash bucket (13).
6,, it is characterized in that condensing electrode (5) and adopt first steel or garden pipe etc. to cover the limit, and available insulated column (16) is supported on the built-in beam (8) as claim 1,2 or 5 described dust-precipitators.
7, dust-precipitator as claimed in claim 3 it is characterized in that condensing electrode (5) and adopt first steel or garden pipe etc. to cover the limit, and available insulated column (16) is supported on the built-in beam (8).
8, dust-precipitator as claimed in claim 4 it is characterized in that condensing electrode (5) and adopt first steel or garden pipe etc. to cover the limit, and available insulated column (16) is supported on the built-in beam (8).
9,, it is characterized in that recommending to adopt two gardens awl to flash valve (10) in the bottom of whirlwind tube (4) as claim 1,2,5,7 or 8 described dust-precipitators.
10, dust-precipitator as claimed in claim 3 is characterized in that recommending to adopt two gardens awl to flash valve (10) in the bottom of whirlwind tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87106456.1A CN1004922B (en) | 1987-09-23 | 1987-09-23 | Apply the efficient dust collector of multiple dust-collecting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87106456.1A CN1004922B (en) | 1987-09-23 | 1987-09-23 | Apply the efficient dust collector of multiple dust-collecting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87106456A true CN87106456A (en) | 1988-04-06 |
| CN1004922B CN1004922B (en) | 1989-08-02 |
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ID=4815710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87106456.1A Expired CN1004922B (en) | 1987-09-23 | 1987-09-23 | Apply the efficient dust collector of multiple dust-collecting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1004922B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977898A (en) * | 2014-05-15 | 2014-08-13 | 无锡同春新能源科技有限公司 | Device used for collecting particulate matters in air by using wind driven generator as power supply |
| CN106362880A (en) * | 2016-06-20 | 2017-02-01 | 宁波工程学院 | Bipolar charging-cyclone separation apparatus and technology used for flue gas dedusting |
| CN109277213A (en) * | 2017-07-22 | 2019-01-29 | 青岛理工大学 | Electrostatic cyclone dust collector |
| CN111569537A (en) * | 2020-05-12 | 2020-08-25 | 宁波锦心节能环保科技有限公司 | Cyclone dust removal method |
| CN113107115A (en) * | 2021-03-18 | 2021-07-13 | 中国石油大学(华东) | Electrostatic precipitator double-deck skin ventilation curtain |
-
1987
- 1987-09-23 CN CN87106456.1A patent/CN1004922B/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977898A (en) * | 2014-05-15 | 2014-08-13 | 无锡同春新能源科技有限公司 | Device used for collecting particulate matters in air by using wind driven generator as power supply |
| CN106362880A (en) * | 2016-06-20 | 2017-02-01 | 宁波工程学院 | Bipolar charging-cyclone separation apparatus and technology used for flue gas dedusting |
| CN106362880B (en) * | 2016-06-20 | 2019-01-15 | 宁波工程学院 | Bipolar charge-cyclone separator and technique for flue gas dedusting |
| CN109277213A (en) * | 2017-07-22 | 2019-01-29 | 青岛理工大学 | Electrostatic cyclone dust collector |
| CN111569537A (en) * | 2020-05-12 | 2020-08-25 | 宁波锦心节能环保科技有限公司 | Cyclone dust removal method |
| CN111569537B (en) * | 2020-05-12 | 2021-12-03 | 宁波锦心节能环保科技有限公司 | Cyclone dust removal method |
| CN113107115A (en) * | 2021-03-18 | 2021-07-13 | 中国石油大学(华东) | Electrostatic precipitator double-deck skin ventilation curtain |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1004922B (en) | 1989-08-02 |
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