CN201105198Y - Large-sized electric bag mixed mode dust-cleaning equipment - Google Patents
Large-sized electric bag mixed mode dust-cleaning equipment Download PDFInfo
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- CN201105198Y CN201105198Y CNU2007201143614U CN200720114361U CN201105198Y CN 201105198 Y CN201105198 Y CN 201105198Y CN U2007201143614 U CNU2007201143614 U CN U2007201143614U CN 200720114361 U CN200720114361 U CN 200720114361U CN 201105198 Y CN201105198 Y CN 201105198Y
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- electric precipitation
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Abstract
The utility model discloses a large-scale electric bag composite dust collector, which comprises a electric precipitation zone and a bag dedusting zone; wherein, a front end head is arranged on the front end of the electric precipitation zone; the bag dedusting zone is arranged on the rear end of the electric precipitation zone; two dust hoppers are arranged on the lower part of the electric precipitation zone and the bag dedusting zone respectively; a guiding device is arranged in the front end head of the front end of the electric precipitation zone; a flow-equilibrating device is arranged between the electric precipitation zone and the bag dedusting zone; the bag dedusting zone comprises at least two filter chambers; a spoiler is arranged between each two filter chambers; the height of each filter chamber is reduced gradually along the flue gas flowing direction. The large-scale electric bag composite dust collector has the advantages of perfectly combining a plurality of airflow distribution devices with different form and action, combining the staggering layout of filter bag to acquire the optimal airflow distribution, improving the performance of electric bag composite dust collector and the dust removal efficiency, reducing the dust secondary adsorption, preventing the filter bag from being flushed by the high-speed airflow, and ensuring low resistance, high efficiency and stable running for a long period of dust collector, and excellent performance with the dust collecting electrode height above 10m.
Description
[technical field]
The utility model relates to environmental protection equipment, and relating in particular to is a kind of large electric-bag complex type dust remover.
[background technology]
About 70% of China's soot emissions total amount derives from the burning of coal, and discharging a large amount of minuteness particle in coal-burning power plant's is main particle pollution sources.Electric cleaner and sack cleaner are the most frequently used cleaners in coal-burning power plant.
Advantages such as it is big that electric cleaner has the smoke treatment amount, and equipment resistance is low.But its efficiency of dust collection is subjected to the influence of dust characteristic bigger, to the flue dust of some high specific resistances, reach very difficulty of the existing environmental standard of China.
Sack cleaner is a kind of filtering type cleaner.Shortcomings such as its outstanding advantage is that efficiency of dust collection is high and stable, but has the SR height, and life of bag filter is short.
The front portion of electric-bag complex dust collector is the electric precipitation district, and the rear portion is the bag dedusting area.Electric-bag complex dust collector at first utilizes electrostatic precipitation to remove most of flue dust, utilizes bag-type dusting to capture remaining dust in the flue gas again, to reach the purpose of high-efficiency low-resistance.Electric-bag complex dust collector has very strong adaptability.Especially in the occasion of existing electric cleaner transformation, advantage is more outstanding.
The key technology of electric-bag complex dust collector is inner air-flow distribution design.The air-flow distribution design of usual manner is to set up porous plate between electric precipitation district and bag dedusting area at present, and most of air-flow imports the bag dedusting area from the filter bag below.This structure can produce the problem of two aspects: the one, and the air velocity of bottom, electric precipitation district is excessive, thereby makes the decrease in efficiency of electric precipitation; The 2nd, the air-flow rate of climb of bag dedusting area is too high, causes the dust settling difficulty, and the resistance of equipment increases.Particularly concerning large-scale electric cleaner, the height of its dust collecting electrode can reach 15m, has only 8m and the length of filter bag is generally the longest, to carry out electricity bag composite dedusting this moment, if adopt usual manner, will produce very big idle space in the bag dedusting area, both waste material also influenced the uniformity that air-flow distributes.
[summary of the invention]
The purpose of this utility model solves the problems of the prior art exactly, a kind of large electric-bag complex type dust remover of new structure is proposed, can solve at present in electric-bag complex dust collector, because the electric precipitation weak effect that air-flow distribution design problem causes, problems such as the SR loss is big, can obtain best air-flow and distribute, improve the performance of electric-bag complex dust collector.
For achieving the above object, the utility model proposes a kind of large electric-bag complex type dust remover, comprise the electric precipitation district, the bag dedusting area, the front end in described electric precipitation district has front head, rear end marsupial dedusting area, the bottom of electric precipitation district and bag dedusting area is provided with ash bucket, in the anterior front head in electric precipitation district, be provided with guiding device, be provided with current equalizer between electric precipitation district and the bag dedusting area, the bag dedusting area comprises at least two filter chambers and air-purifying chamber, air-purifying chamber is provided with choke apparatus between per two adjacent filter chambers above filter chamber, reduce gradually along the height of each filter chamber of flow of flue gas direction.
As preferably, described guiding device is a perforated plate construction, and the diameter in hole is 50mm-100mm, and porous plate is provided with horizontally disposed flow deflector.
As preferably, described current equalizer is a perforated plate construction, and the diameter in hole is 50mm-100mm, and porous plate is arranged in the forward lower part of filter chamber.
As preferably, described choke apparatus is a perforated plate construction, and the diameter in hole is 50mm-100mm, and porous plate is arranged near the position filter bag bottom of last filter chamber.
As preferably, described electric precipitation district adopts some equally distributed dust collecting electrode.
The beneficial effects of the utility model: the utility model is by the setting of guiding device and current equalizer, the flue gas that will flow out from the electric precipitation district imports the bag dedusting area from horizontal direction, guarantee the uniformity of electric precipitation district air-flow, improve dust collection efficiency, reduce the inlet dust concentration of bag dedusting area.Simultaneously, on the flow of flue gas direction, progressively reduce the layout height of filter bag, increase the horizontal circulation area of bag dedusting area, reduce the air-flow rate of climb of bag dedusting area.Choke apparatus is installed again to eliminate local high velocity air in the bag dedusting area between two adjacent filter chambers.The utility model carries out organic assembling with several airflow distribution devices multi-form, not same-action, and arranges that in conjunction with the staggered floor of filter bag obtaining best air-flow distributes, thereby has improved the performance of electric-bag complex dust collector.Adopt this structure can solve at present in electric-bag complex dust collector, because the electric precipitation weak effect that air-flow distribution design problem causes, problem such as the SR loss is big.Thereby improve the efficiency of dust collection in electric precipitation district, reduced the dust second adsorption of bag dedusting area, eliminated high velocity air, guaranteed the high-efficiency low-resistance of deduster, operation steady in a long-term the washing away of filter bag.It is better greater than effect under the occasion of 10m that the utility model is used for electric-bag complex dust collector electric precipitation dust collecting electrode height.
Feature of the present utility model and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is the structural representation of the utility model large electric-bag complex type dust remover.
[specific embodiment]
As shown in Figure 1, large electric-bag complex type dust remover, comprise electric precipitation district 9, bag dedusting area 5, the front end in described electric precipitation district 9 has front head 1, rear end marsupial dedusting area 5, the bottom of electric precipitation district 9 and bag dedusting area 5 is provided with ash bucket 7, in the anterior front head 1 in electric precipitation district 9, be provided with guiding device 2, be provided with current equalizer 4 between electric precipitation district 9 and the bag dedusting area 5, bag dedusting area 5 comprises at least two filter chambers 6 and air-purifying chamber 10, air-purifying chamber 10 is provided with choke apparatus 8 between per two adjacent filter chambers 6 above filter chamber 6, reduce gradually along the height of each filter chamber 6 of flow of flue gas direction.
Described guiding device 2 is a perforated plate construction, and the diameter in hole is 50mm-100mm, and porous plate is provided with horizontally disposed flow deflector.Described current equalizer 4 is a perforated plate construction, and the diameter in hole is 50mm-100mm, and porous plate is arranged in the forward lower part of filter chamber 6.Flow deflector is not set on the porous plate.Described choke apparatus 8 is a perforated plate construction, and the diameter in hole is 50mm-100mm, and porous plate is arranged near the position, filter bag bottom of last filter chamber 6.Flow deflector is not set on the porous plate.Described electric precipitation district 9 adopts some equally distributed dust collecting electrode 3.
Ash-laden gas at first captures most of dust by the electric precipitation mode, then captures remaining dust by the filter bag filter type.The flowing through channel of dusty gas in deduster is: front head 1 → current equalizer 2 → dust collecting electrode 3 → guiding device 4 → bag dedusting area 5 → air-purifying chamber 10.
Flue gas obtains flowing into electric precipitation district 9 after the rectification by guiding device 2, and dust in flue gas is charged in high voltage electric field, and is deposited on the dust collecting electrode 3 in major part under the effect of electric field force, makes dust fall into ash bucket 7 by the timing rapping again.Make it keep bottom horizontal flow sheet through current equalizer 4 again through the flue gas behind the electric precipitation, most of flue gas flows into bag dedusting area 5 from horizontal direction, and a small amount of flue gas flows into bag dedusting area 5 from the below.Choke apparatus 8 is arranged in the joint portion of two filter chambers 6, to eliminate the local high velocity air at this place.Flue gas is by filter bag 6 time, and dust is blocked in the filter bag surface, and then by air-purifying chamber 10, flue effluxes the gas after the filtration.Along with the carrying out of filter process, the thickness that the filter bag surface dust is piled up constantly increases, and it is big that the differential pressure of filter bag both sides becomes thereupon.When this differential pressure or filter time reach setting value, the deashing mechanism auto-action of exhaust dust device with bag, the pulse compression air sprays into the filter bag inboard, rapid expansion-contractile motion takes place in filter bag, be deposited under the double action of the back draught that backward acceleration that the dust layer on filter bag surface produces when filter bag moves and compressed air causes, break away from the filter bag surface and fall into ash bucket 7.
The foregoing description is to explanation of the present utility model, is not to qualification of the present utility model, any scheme after the utility model simple transformation is all belonged to protection domain of the present utility model.
Claims (5)
1. large electric-bag complex type dust remover, comprise electric precipitation district (9), bag dedusting area (5), the front end in described electric precipitation district (9) has front head (1), rear end marsupial dedusting area (5), the bottom of electric precipitation district (9) and bag dedusting area (5) is provided with ash bucket (7), it is characterized in that: in the anterior front head (1) of electric precipitation district (9), be provided with guiding device (2), be provided with current equalizer (4) between electric precipitation district (9) and the bag dedusting area (5), bag dedusting area (5) comprises at least two filter chambers (6) and air-purifying chamber (10), air-purifying chamber (10) is in the top of filter chamber (6), be provided with choke apparatus (8) between per two adjacent filter chambers (6), reduce gradually along the height of each filter chamber of flow of flue gas direction (6).
2. large electric-bag complex type dust remover as claimed in claim 1 is characterized in that: described guiding device (2) is a perforated plate construction, and the diameter in hole is 50mm-100mm, and porous plate is provided with horizontally disposed flow deflector.
3. large electric-bag complex type dust remover as claimed in claim 1 is characterized in that: described current equalizer (4) is a perforated plate construction, and the diameter in hole is 50mm-100mm, and porous plate is arranged in the forward lower part of filter chamber (6).
4. large electric-bag complex type dust remover as claimed in claim 1 is characterized in that: described choke apparatus (8) is a perforated plate construction, and the diameter in hole is 50mm-100mm, and porous plate is arranged near the position, filter bag bottom of last filter chamber (6).
5. as any one described large electric-bag complex type dust remover in the claim 1 to 4, it is characterized in that: described electric precipitation district (9) adopts some equally distributed dust collecting electrode (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201143614U CN201105198Y (en) | 2007-09-07 | 2007-09-07 | Large-sized electric bag mixed mode dust-cleaning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201143614U CN201105198Y (en) | 2007-09-07 | 2007-09-07 | Large-sized electric bag mixed mode dust-cleaning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201105198Y true CN201105198Y (en) | 2008-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201143614U Expired - Lifetime CN201105198Y (en) | 2007-09-07 | 2007-09-07 | Large-sized electric bag mixed mode dust-cleaning equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201105198Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337148B (en) * | 2007-09-07 | 2012-02-08 | 浙江菲达环保科技股份有限公司 | Large electric-bag complex type dust remover |
-
2007
- 2007-09-07 CN CNU2007201143614U patent/CN201105198Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337148B (en) * | 2007-09-07 | 2012-02-08 | 浙江菲达环保科技股份有限公司 | Large electric-bag complex type dust remover |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160627 Address after: 224561 No. 16 environmental protection Avenue, Yancheng City environmental protection science and Technology City, Jiangsu Province Patentee after: JIANGSU FEIDA ENVIRONMENTAL PROTECTION SCIENCE AND TECHNOLOGY CO., LTD. Address before: 311800 Zhejiang city of Zhuji Province Wang Yun Road No. 88 Patentee before: Zhejiang Feida Environmental Science & Technology Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20080827 |
|
| CX01 | Expiry of patent term |