CN102430311A - Pre-charging gravity dust collector and dust collecting method thereof - Google Patents
Pre-charging gravity dust collector and dust collecting method thereof Download PDFInfo
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- CN102430311A CN102430311A CN201110352063XA CN201110352063A CN102430311A CN 102430311 A CN102430311 A CN 102430311A CN 201110352063X A CN201110352063X A CN 201110352063XA CN 201110352063 A CN201110352063 A CN 201110352063A CN 102430311 A CN102430311 A CN 102430311A
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Abstract
The invention relates to a pre-charging gravity dust collector and a dust collecting method of the dust collector; the pre-charging gravity dust collector comprises a dust collector shell; an air inlet pipe and a dust outlet pipe are respectively arranged at the upper end and the lower end of the dust collector shell; a spiral dust conveying machine is arranged in the dust outlet pipe; an air outlet pipe is arranged on the wall of the dust conveying machine; a lower port of the air inlet pipe is connected with a trumpet-shaped inlet diffusion pipe; an umbrella-shaped dust collecting electrode is arranged under the inlet diffusion pipe and is overlapped on a supporting point of the inner wall of the dust collector shell; a dust leaking hole is arranged on the surface of the dust collecting electrode; a direct-current power source is added between the inlet diffusion pipe and the dust collecting electrode; the dust collecting electrode serves as a positive electrode of the power source; the inlet diffusion pipe serves as a negative electrode of the power source; and the dust collector shell is grounded. For the preloading electric gravity dust collector, negative ions are used for transmitting electrons, the electrons collide with dust particles under the effect of electrostatic force so that the dust particles are charged; the charged dust particles and the uncharged dust particles are mutually bonded and continuously enlarge after colliding with each other; and the dust collecting efficiency of the gravity dust collector is improved under the combined effect of the enlargement of dust particle sizes and electric filed force.
Description
Technical field
The present invention relates to deduster, specifically preparatory charged gravitational precipitator and dust collection method thereof.
Background technology
The caloric value of employed coke of blast furnace and coal has 30% to be transformed into the built-in chemical heat of stock gas approximately, therefore makes full use of the energy of coal gas and collect pure blast furnace gas to have great importance for energy-conservation.From the blast furnace gas that blast furnace is drawn, contain a large amount of dusts, must be through dust removal process.Advantages such as gravitational precipitator has simple in structure, safeguards easily, and is durable in use, and the pressure loss is few; Its shortcoming is only to be fit to capture the particle of equivalent diameter greater than 50 μ m; Efficiency of dust collection generally has only 40-50%; Especially very low to equivalent diameter less than its efficiency of dust collection of fine dust of 50 μ m; Therefore gravitational precipitator can only be as the rough cleaner of multistage dedusting, for smart dedusters such as bag-type dusting or electric precipitation are prepared.
In view of this,, propose a kind of reasonable in designly and can improve the preparatory charged gravitational precipitator of above-mentioned disappearance, draw a kind of brand-new dust collection method simultaneously to the problems referred to above.
Summary of the invention
The object of the present invention is to provide preparatory charged gravitational precipitator and dust collection method thereof, having solved that efficiency of dust collection that the deduster of prior art exists crosses low and can't smartly remove can only be as the defective of the rough cleaner of multistage dedusting.The present invention will add an amount of anion in the blast furnace gas of dust-laden, and in gravitational precipitator, will add an electric field, thereby promote the reunion and the sedimentation of particle, improve the efficient of gravitational precipitator.
In order to reach above-mentioned purpose, the invention provides preparatory charged gravitational precipitator, comprise a deduster housing; The top and bottom of said deduster housing are respectively arranged with gas inlet pipe and dust export pipe, and this gas inlet pipe and dust export Guan Junyu deduster housing inner chamber are communicated with; Said dust export pipe set inside has spiral ash machine; Said deduster housing wall is provided with the gas outlet tube that is interconnected with deduster housing inner chamber; It is characterized in that the gas access infratubal port in the said deduster housing inner chamber is connected with and is trumpet-shaped inlet anemostat; Under the inlet anemostat, be provided with dust collecting electrode, this dust collecting electrode is umbrella and overlaps on the strong point of deduster outer casing inner wall through the circumferential edges insulation, offers dust-leaking hole on the umbrella surface of said dust collecting electrode; Add dc source between said inlet anemostat and the dust collecting electrode, control of dust positive source very wherein, the import anemostat is a negative pole, the deduster frame ground.
Further; Said dust collecting electrode umbrella upper surface is glued with the dust collecting electrode deashing device; This dust collecting electrode deashing device lower surface is provided with the hairbrush of heat-resistant, wear-resistant, and said dust collecting electrode deashing device is connected through rotating shaft that be provided with and that pass dust collecting electrode between wherein and makes this spiral ash machine drive dust collecting electrode deashing device on the spiral ash machine to rotate at the dust collecting electrode upper surface.
Further, said gas inlet pipe is provided with the anion generator that discharges the electronics that is used in a large number being captured by grit through corona discharge.
Further, said gas inlet pipe is connected through flange and insulated bolt with the inlet anemostat, and the insulating materials dottle pin is arranged in the middle of the said flange.
Further, said dc source passes through lead when inlet anemostat that connects the deduster enclosure interior and dust collecting electrode, and lead is that insulation passes and be provided with the seal sealing in the position of passing the dust arrester housing.
Further, the said strong point evenly is provided with eight on the deduster inner walls.
Further, what the overlapping mode of insulation adopted is between the dust collecting electrode and the strong point, to add insulating part to solve, and insulating part installs and fixes with the strong point through bolt and dust collecting electrode respectively and is in the same place.
In order to reach above-mentioned purpose, the invention provides the dust collection method of preparatory charged gravitational precipitator, its step is following,
A, the anion generator that is in the gas inlet pipe place discharge a large amount of electronics through corona discharge; The electronics that gets into gravitational precipitator along with gas will be captured by grit very soon; Under the effect of electrostatic force, charged grit will speed up motion and collides each other with uncharged grit and constantly be agglomerated into the particle of greater particle size;
Add dc source between b, inlet anemostat and the dust collecting electrode; Control of dust positive source very wherein; The import anemostat is a negative pole, and therefore the deduster frame ground forms electric field in this zone; The particle dust of these greater particle sizes is under the acting in conjunction of gravity and electric field force, and bulky grain and charged granule all are deposited on the dust collecting electrode;
C, dust are discharged outside the gravitational precipitator through dust collecting electrode deashing device and spiral ash machine, and half pure qi (oxygen) body is discharged by gravitational precipitator housing upper gas outlet.
Compared to prior art; The present invention utilizes anion generator emission electronics; Under the effect of electrostatic force; Electronics will bump with grit and bonding and continuous increase each other after dust particles, charged grit and uncharged grit are collided, the efficiency of dust collection of the increase of particle size and the acting in conjunction of electric field force raising gravitational precipitator.
Description of drawings
Fig. 1 is the structural representation of the preparatory charged gravitational precipitator of the present invention;
Fig. 2, Fig. 3 are respectively front view, the vertical view of insulating materials dottle pin;
Fig. 4, Fig. 5 are respectively front view, the vertical view of dust collecting electrode;
Fig. 6 is the A place partial enlarged drawing of Fig. 1;
Fig. 7, Fig. 8 are respectively front view, the vertical view of dust collecting electrode deashing device;
Fig. 9 is the B-B sectional view of Fig. 1.
Among the figure: 1: gas inlet pipe; 2: anion generator; 3: the insulating materials dottle pin; 4: the deduster housing; 5: gas outlet tube; 6: inlet anemostat (the electric field negative electrode of holding concurrently); 7: the dust collecting electrode deashing device; 8: dust collecting electrode (electric field anode); 9: spiral ash machine; 10: the dust export pipe; 11: insulated bolt; 12: dc source; 13: hairbrush (heatproof, wear-resisting); 14: seal; 15: insulating part; 16: bolt.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further so that those skilled in the art can better understand the present invention and implementing, but the embodiment that lifts not conduct to qualification of the present invention.
The present invention is an example with the blast furnace gas gravitational precipitator, but also is applicable to the gravitational precipitator of other any occasions.
Please with reference to shown in Figure 1, the preparatory charged gravitational precipitator of the present invention, structure comprises a deduster housing 4; One gas inlet pipe 1 and a dust export pipe 10, this gas inlet pipe and dust export pipe are arranged at the top and bottom of deduster housing respectively and are UNICOM's state with deduster housing inner chamber all; Gas inlet pipe is provided with the anion generator 2 that discharges the electronics that is used in a large number being captured by grit through corona discharge.Dust export pipe set inside has spiral ash machine 9; The deduster housing wall is provided with it the gas outlet tube 5 of UNICOM each other; Gas access infratubal port in the deduster housing inner chamber is connected with inlet anemostat 6, is horn-like; Under the inlet anemostat, be provided with dust collecting electrode 8; Like Fig. 4, Fig. 5 and shown in Figure 6; This dust collecting electrode be a umbrella through circumferential edges insulation overlap joint on the strong point of deduster outer casing inner wall, what the overlapping mode of insulation adopted is between the dust collecting electrode and the strong point, to add insulating part 15 to solve, and insulating part 15 installs and fixes with the strong point through bolt 16 and dust collecting electrode respectively and is in the same place; The strong point evenly is provided with eight, offers dust-leaking hole on the umbrella surface of dust collecting electrode; Add dc source 12 between inlet anemostat and the dust collecting electrode, control of dust positive source very wherein, the import anemostat is a negative pole, the deduster frame ground.Dc source passes through lead when inlet anemostat that connects the deduster enclosure interior and dust collecting electrode, and lead is that insulation passes and be provided with seal 14 sealings in the position of passing the dust arrester housing.
As shown in Figures 2 and 3, gas inlet pipe is connected through flange and insulated bolt 11 with the inlet anemostat, and insulating materials dottle pin 3 is arranged in the middle of the flange.
Like Fig. 1, Fig. 7 and shown in Figure 8; Dust collecting electrode umbrella upper surface is glued with dust collecting electrode deashing device 7; This dust collecting electrode deashing device lower surface is provided with the hairbrush 13 of heat-resistant, wear-resistant, and the dust collecting electrode deashing device is connected through rotating shaft that be provided with and that pass dust collecting electrode between wherein and makes this spiral ash machine drive dust collecting electrode deashing device on the spiral ash machine to rotate at the dust collecting electrode upper surface.
The dust collection method of the preparatory charged gravitational precipitator of the present invention, its step is following,
A, the anion generator that is in the gas inlet pipe place discharge a large amount of electronics through corona discharge; Along with nitrogen (or other gases; Such as just with the blast furnace gas after purifying) electronics that gets into gravitational precipitator will be captured by grit very soon; Under the effect of electrostatic force, charged grit will speed up motion and collides each other with uncharged grit and constantly be agglomerated into the particle of greater particle size;
Add dc source between b, inlet anemostat and the dust collecting electrode; Control of dust positive source very wherein; The import anemostat is a negative pole, and therefore the deduster frame ground forms electric field in this zone; The particle dust of these greater particle sizes is under the acting in conjunction of gravity and electric field force, and bulky grain and charged granule all are deposited on the dust collecting electrode;
C, dust are discharged outside the gravitational precipitator through dust collecting electrode deashing device and spiral ash machine, and half purified gas is discharged by gravitational precipitator housing upper gas outlet.
The above embodiment is the preferred embodiment that proves absolutely that the present invention lifts, and protection scope of the present invention is not limited thereto.Being equal to that the technical staff in present technique field is done on basis of the present invention substitutes or conversion, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (8)
1. a preparatory charged gravitational precipitator comprises a deduster housing; The top and bottom of said deduster housing are respectively arranged with gas inlet pipe and dust export pipe, and this gas inlet pipe and dust export Guan Junyu deduster housing inner chamber are communicated with; Said dust export pipe set inside has spiral ash machine; Said deduster housing wall is provided with the gas outlet tube that is interconnected with deduster housing inner chamber; It is characterized in that the gas access infratubal port in the said deduster housing inner chamber is connected with and is trumpet-shaped inlet anemostat; Under the inlet anemostat, be provided with dust collecting electrode, this dust collecting electrode is umbrella and overlaps on the strong point of deduster outer casing inner wall through the circumferential edges insulation, offers dust-leaking hole on the umbrella surface of said dust collecting electrode; Add dc source between said inlet anemostat and the dust collecting electrode, control of dust positive source very wherein, the import anemostat is a negative pole, the deduster frame ground.
2. preparatory charged gravitational precipitator as claimed in claim 1; It is characterized in that; Said dust collecting electrode umbrella upper surface is glued with the dust collecting electrode deashing device; This dust collecting electrode deashing device lower surface is provided with hairbrush, and said dust collecting electrode deashing device is connected through rotating shaft that be provided with and that pass dust collecting electrode between wherein and makes this spiral ash machine drive dust collecting electrode deashing device on the spiral ash machine to rotate at the dust collecting electrode upper surface.
3. preparatory charged gravitational precipitator as claimed in claim 1 is characterized in that, said gas inlet pipe is provided with the anion generator that discharges the electronics that is used in a large number being captured by grit through corona discharge.
4. preparatory charged gravitational precipitator as claimed in claim 1 is characterized in that, said gas inlet pipe is connected through flange and insulated bolt with the inlet anemostat, and the insulating materials dottle pin is arranged in the middle of the said flange.
5. preparatory charged gravitational precipitator as claimed in claim 1; It is characterized in that; Said dc source passes through lead when inlet anemostat that connects the deduster enclosure interior and dust collecting electrode, and lead is that insulation passes and be provided with the seal sealing in the position of passing the dust arrester housing.
6. preparatory charged gravitational precipitator as claimed in claim 1 is characterized in that the said strong point evenly is provided with eight on the deduster inner walls.
7. preparatory charged gravitational precipitator as claimed in claim 1; It is characterized in that; What the overlapping mode of the insulation of the said dust arrester and the strong point adopted is between the dust collecting electrode and the strong point, to add insulating part to solve, and insulating part installs and fixes with the strong point through bolt and dust collecting electrode respectively and is in the same place.
8. the dust collection method of preparatory charged gravitational precipitator, its step is following,
A, the anion generator that is in the gas inlet pipe place discharge a large amount of electronics through corona discharge; The electronics that gets into gravitational precipitator along with gas will be captured by grit very soon; Under the effect of electrostatic force, charged grit will speed up motion and collides each other with uncharged grit and constantly be agglomerated into the particle of greater particle size;
Add dc source between b, inlet anemostat and the dust collecting electrode; Control of dust positive source very wherein; The import anemostat is a negative pole, and therefore the deduster frame ground forms electric field in this zone; The particle dust of these greater particle sizes is under the acting in conjunction of gravity and electric field force, and bulky grain and charged granule all are deposited on the dust collecting electrode;
C, dust are discharged outside the gravitational precipitator through dust collecting electrode deashing device and spiral ash machine, and half pure qi (oxygen) body is discharged by gravitational precipitator housing upper gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110352063 CN102430311B (en) | 2011-11-09 | 2011-11-09 | Pre-charging gravity dust collector and dust collecting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110352063 CN102430311B (en) | 2011-11-09 | 2011-11-09 | Pre-charging gravity dust collector and dust collecting method thereof |
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| CN102430311A true CN102430311A (en) | 2012-05-02 |
| CN102430311B CN102430311B (en) | 2013-10-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104548835A (en) * | 2014-12-10 | 2015-04-29 | 中冶南方工程技术有限公司 | Pre-charged gravity precipitator and use method thereof |
| CN104833193A (en) * | 2015-04-30 | 2015-08-12 | 苏州科谷米业有限公司 | Grain drying machine with synchronous dust-removing function |
| CN113019049A (en) * | 2021-03-08 | 2021-06-25 | 浙江安防职业技术学院 | Pulse dust removal experiment gas generating device |
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| CN2125457U (en) * | 1992-06-20 | 1992-12-23 | 云南省建筑材料科学研究设计院 | Rotary umbrella combined vertical electric dust-remover |
| CN2287054Y (en) * | 1996-02-13 | 1998-08-05 | 淄博齐银水泥有限公司 | High voltage electrostatic dust collector for mechanic vertical kiln |
| CN1476354A (en) * | 2000-11-21 | 2004-02-18 | ���ȿ���ͨ�Źɷ�����˾ | Electrostatic filter |
| CN201197919Y (en) * | 2008-03-04 | 2009-02-25 | 刘庆荣 | Efficient gravity dust collector |
| CN201676750U (en) * | 2010-02-04 | 2010-12-22 | 山东大学 | Charged water mist synergy electrostatic dust removal device |
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2011
- 2011-11-09 CN CN 201110352063 patent/CN102430311B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2125457U (en) * | 1992-06-20 | 1992-12-23 | 云南省建筑材料科学研究设计院 | Rotary umbrella combined vertical electric dust-remover |
| CN2287054Y (en) * | 1996-02-13 | 1998-08-05 | 淄博齐银水泥有限公司 | High voltage electrostatic dust collector for mechanic vertical kiln |
| CN1476354A (en) * | 2000-11-21 | 2004-02-18 | ���ȿ���ͨ�Źɷ�����˾ | Electrostatic filter |
| CN201197919Y (en) * | 2008-03-04 | 2009-02-25 | 刘庆荣 | Efficient gravity dust collector |
| CN201676750U (en) * | 2010-02-04 | 2010-12-22 | 山东大学 | Charged water mist synergy electrostatic dust removal device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104548835A (en) * | 2014-12-10 | 2015-04-29 | 中冶南方工程技术有限公司 | Pre-charged gravity precipitator and use method thereof |
| CN104833193A (en) * | 2015-04-30 | 2015-08-12 | 苏州科谷米业有限公司 | Grain drying machine with synchronous dust-removing function |
| CN113019049A (en) * | 2021-03-08 | 2021-06-25 | 浙江安防职业技术学院 | Pulse dust removal experiment gas generating device |
| CN113019049B (en) * | 2021-03-08 | 2022-09-13 | 浙江安防职业技术学院 | Pulse dust removal experiment gas generating device |
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| CN102430311B (en) | 2013-10-16 |
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