CN203002124U - Online dust removal pulse bag dust collector - Google Patents
Online dust removal pulse bag dust collector Download PDFInfo
- Publication number
- CN203002124U CN203002124U CN 201220564981 CN201220564981U CN203002124U CN 203002124 U CN203002124 U CN 203002124U CN 201220564981 CN201220564981 CN 201220564981 CN 201220564981 U CN201220564981 U CN 201220564981U CN 203002124 U CN203002124 U CN 203002124U
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- filter bag
- bag
- air
- air inlet
- casing
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Abstract
The utility model discloses an online dust removal pulse bag dust collector comprising an ash hopper, a box body, a plurality of filter bags, an air inlet, an air outlet, an air inlet duct, an air outlet duct and a pulse-jet device, wherein the ash hopper is located below the box body, the top of the box body is provided with an air outlet, and the filter bags are arranged in the box body; the air inlet duct is formed by a space from the air inlet to the outside of each filter bag inside the box body, the air outlet duct is formed by a space from the inside of each filter bag to the air outlet inside the box body, and the air inlet duct and the air outlet duct are insulated by the filter bags; the pulse-jet device comprises a compressed air source, jet pipes, an air valve and nozzles; the jet pipes is connected with the plurality of nozzles, and each nozzle faces to the opened end of one of the filter bags; the plurality of filter bags are arranged in multiple lines, and the amounts of the filter bags in all lines are same; the filter bags in each line are connected to the air outlet through the same pipeline, the filter bags in each line and the corresponding pipeline are formed into an independent bag chamber, and the pipeline is internally connected with a controllable switch; and the filter bags in the same bag chamber are provided with one of the jet pipes, and the jet pipe is connected with the compressed air source through the air valve.
Description
Technical field
The technical program belongs to the deduster technical field, specifically a kind of online dedusting pulse bag type dust collector.
Background technology
In prior art, bag filter is the dust collection device that is in daily use.Existing bag filter generally comprises ash bucket, casing, filter bag, air inlet duct and exhaust passage, and ash bucket is positioned at below casing, the side opening air inlet of lower box, and the air port is left at the top of casing, and filter bag is in casing.Air inlet duct is space in the casing of air inlet to filter bag, the exhaust passage be in filter bag to the casing of air outlet the space, air inlet duct and exhaust passage are isolated by filter bag.Its operation principle is, flue gas from air inlet duct through filter bag to the exhaust passage, then discharge atmosphere, the dust in filter bag outer wall filtering flue gas, then dust falls into ash bucket.The problem of this structure is, flue gas directly blows on filter bag, and the dust that especially particle is larger is larger to the filter bag impulsive force, can damage filter bag, and simultaneously, all dust all are accumulated on the filter bag outer wall, easily cause the obstruction of filter opening on filter bag.The most important thing is, carry out the filter bag dedusting on-the-spot shut-down of dedusting, the economic loss that causes is larger.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the technical program proposes a kind of online dedusting pulse bag type dust collector, comprises ash bucket, casing, filter bag, air inlet, air outlet, air inlet duct, exhaust passage, pulse spraying equipment; Ash bucket is positioned at below casing, and the air port is left at the top of casing, and filter bag is in casing; Described filter bag has a plurality of; Air inlet duct is space in the casing of air inlet to each filter bag, the exhaust passage be in each filter bag to the casing of air outlet the space, air inlet duct and exhaust passage are isolated by filter bag; Described pulse spraying equipment comprises compressed air gas source, injection tube, air valve and nozzle; One end of described injection tube connects compressed air gas source, other end sealing; Be connected with a plurality of nozzles on injection tube, nozzle is towards the openend of a filter bag;
Described a plurality of filter bag is divided into multiple row, and the quantity of every row filter bag is identical; For every row filter bag, they are connected to air outlet by same pipeline, and every row filter bag and corresponding pipeline consist of independent bag chamber, are connected with gate-controlled switch in pipeline; The filter bag of same bag chamber is provided with an injection tube, and this injection tube is by the air valve compressed air gas source.
Described gate-controlled switch is lift valve.
Described air inlet is opened on ash bucket, and the position is on the top of ash bucket side.
Described ash bucket below is connected with ash-discharging device.
Described nozzle is Venturi tube.
The filter bag ash removal principle of this deduster is, make the lift valve of a bag chamber close to cut off the filtered airflow of this chamber, then open the air valve (can use electromagnetic impulse valve) on corresponding injection tube, spray into the compressed air of 0.4～0.6MPa in the extremely short time (0.1～0.2 second) in the case.Compressed air expands at a high speed in case, makes filter bag produce the dither distortion, adds the effect of contrary air-flow, and the appended dirt cake distortion in the filter bag outside is come off.After the sedimentation time that has taken into full account dust (guarantee come off dust can effectively fall into ash bucket), lift valve is opened, and this bag chamber enters filtration condition again, and next bag chamber enters the deashing state, so one-period.Deduster is comprised of a plurality of independently chambers, and during deashing, carry out respectively in order each chamber, does not interfere with each other, and realizes long-term operation continuously.
This deduster also adopts lower air inlet chamber structure, and ash-laden gas enters ash bucket by air inlet; The larger grit of part is because the effects such as inertial collision, natural subsidence directly fall into ash bucket, and other grit enters each bag chamber with the air-flow rising.After filter bag filtered, grit was delayed at the filter bag outside, and purified gas enters the exhaust passage by filter bag inside, enters atmosphere through air outlet.Dust in ash bucket regularly or is continuously drawn off by ash-discharging devices such as reaching rigidity impeller discharger or flap valve.
The pulse jet of this deduster belongs to the powerful deashing of low pressure.When air pulse sprayed, the instantaneous pressure air poured filter bag higher than secondary gas flow of five times itself due to the Venturi tube inducing action around aspirating.The pressure that produces is made the used time loading velocity to filter bag and is exceedingly fast, and is transmitted to bag bottom news speed by sack, cause bag wall and dust layer stretching, compression, shear, make that dust layer breaks, comes off, ash-removal effect is obvious.
Description of drawings
Fig. 1 is the structural representation of this deduster;
Fig. 2 is the structural representation of nozzle;
In figure, ash bucket 1, casing 2, filter bag 3, air inlet 4, air outlet 5, injection tube 6, nozzle 7, ash-discharging device 8, gate-controlled switch 9, the arrow direction is air direct.
The specific embodiment
The technical program is further illustrated as follows below in conjunction with accompanying drawing and the specific embodiment:
A kind of online dedusting pulse bag type dust collector comprises ash bucket, casing, filter bag, air inlet, air outlet, air inlet duct, exhaust passage, pulse spraying equipment; Ash bucket is positioned at below casing, and the air port is left at the top of casing, and filter bag is in casing; Described filter bag has a plurality of; Air inlet duct is space in the casing of air inlet to each filter bag, the exhaust passage be in each filter bag to the casing of air outlet the space, air inlet duct and exhaust passage are isolated by filter bag; Described pulse spraying equipment comprises compressed air gas source, injection tube, air valve and nozzle; One end of described injection tube connects compressed air gas source, other end sealing; Be connected with a plurality of nozzles on injection tube, nozzle is towards the openend of a filter bag;
Described a plurality of filter bag is divided into multiple row, and the quantity of every row filter bag is identical; For every row filter bag, they are connected to air outlet by same pipeline, and every row filter bag and corresponding pipeline consist of independent bag chamber, are connected with gate-controlled switch in pipeline; The filter bag of same bag chamber is provided with an injection tube, and this injection tube is by the air valve compressed air gas source.
Described gate-controlled switch is lift valve.
Described air inlet is opened on ash bucket, and the position is on the top of ash bucket side.
Described ash bucket below is connected with ash-discharging device.
Described nozzle is Venturi tube.
Claims (5)
1. an online dedusting pulse bag type dust collector, comprise ash bucket, casing, filter bag, air inlet, air outlet, air inlet duct, exhaust passage, pulse spraying equipment; Ash bucket is positioned at below casing, and the air port is left at the top of casing, and filter bag is in casing; Described filter bag has a plurality of; Air inlet duct is space in the casing of air inlet to each filter bag, the exhaust passage be in each filter bag to the casing of air outlet the space, air inlet duct and exhaust passage are isolated by filter bag; Described pulse spraying equipment comprises compressed air gas source, injection tube, air valve and nozzle; One end of described injection tube connects compressed air gas source, other end sealing; Be connected with a plurality of nozzles on injection tube, nozzle is towards the openend of a filter bag;
It is characterized in that described a plurality of filter bag is divided into multiple row, the quantity of every row filter bag is identical; For every row filter bag, they are connected to air outlet by same pipeline, and every row filter bag and corresponding pipeline consist of independent bag chamber, are connected with gate-controlled switch in pipeline; The filter bag of same bag chamber is provided with an injection tube, and this injection tube is by the air valve compressed air gas source.
2. online dedusting pulse bag type dust collector claimed in claim 1 according to it, is characterized in that described gate-controlled switch is lift valve.
3. online dedusting pulse bag type dust collector claimed in claim 1 according to it is characterized in that described air inlet opens on ash bucket, and the position is on the top of ash bucket side.
4. online dedusting pulse bag type dust collector claimed in claim 1 according to it, is characterized in that being connected with ash-discharging device below described ash bucket.
5. online dedusting pulse bag type dust collector claimed in claim 1 according to it, is characterized in that described nozzle is Venturi tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220564981 CN203002124U (en) | 2012-10-31 | 2012-10-31 | Online dust removal pulse bag dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220564981 CN203002124U (en) | 2012-10-31 | 2012-10-31 | Online dust removal pulse bag dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203002124U true CN203002124U (en) | 2013-06-19 |
Family
ID=48593762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220564981 Expired - Fee Related CN203002124U (en) | 2012-10-31 | 2012-10-31 | Online dust removal pulse bag dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203002124U (en) |
-
2012
- 2012-10-31 CN CN 201220564981 patent/CN203002124U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20151031 |
|
| EXPY | Termination of patent right or utility model |