CN103785243A - Online dust removal pulse bag dust collector - Google Patents
Online dust removal pulse bag dust collector Download PDFInfo
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- CN103785243A CN103785243A CN201210425309.6A CN201210425309A CN103785243A CN 103785243 A CN103785243 A CN 103785243A CN 201210425309 A CN201210425309 A CN 201210425309A CN 103785243 A CN103785243 A CN 103785243A
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Abstract
The invention 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 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 being 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 casing below, the side opening air inlet of lower box, and air port is outputed at the top of casing, and filter bag is in casing.Air inlet duct is the case intracorporeal space of air inlet to filter bag, and exhaust passage is the case intracorporeal space to air outlet in filter bag, and 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 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 filter bag impulsive force, can damage filter bag, and meanwhile, all dust are all accumulated on filter bag outer wall, easily cause the obstruction of filter opening on filter bag.The most important thing is, carry out filter bag dedusting on-the-spot shut-down of dedusting, the economic loss causing 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 casing below, and air port is outputed at the top of casing, and filter bag is in casing; Described filter bag has multiple; Air inlet duct is the case intracorporeal space of air inlet to each filter bag, and exhaust passage is the case intracorporeal space to air outlet in each filter bag, and 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; In injection tube, be connected with multiple nozzles, nozzle is towards the openend of a filter bag;
Described multiple 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 form 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 air valve compressed air gas source.
Described gate-controlled switch is lift valve.
Described air inlet is opened on ash bucket, and 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) in corresponding injection tube, in the extremely short time (0.1～0.2 second) to the compressed air that sprays into 0.4～0.6MPa in case.Compressed air expands at a high speed in case, makes filter bag produce dither distortion, adds the effect of contrary air-flow, and appended dirt cake distortion outside filter bag is come off.After the sedimentation time that has taken into full account dust (guaranteeing that the dust coming off can effectively fall into ash bucket), lift valve is opened, and this bag of chamber enters filtration condition again, and next bag of chamber enters deashing state, so one-period.Deduster is made up of multiple independently chambers, and when 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; Partly larger grit is because the effect such as inertial collision, natural subsidence directly falls into ash bucket, and other grit rises and enters each bag of chamber with air-flow.After filter bag filters, grit is delayed at filter bag outside, and purified gas enters exhaust passage by filter bag inside, enters atmosphere through air outlet.The timing of dust in ash bucket or continuously by and the ash-discharging device such as rigidity impeller discharger or flap valve draw off.
The pulse jet of this deduster belongs to the powerful deashing of low pressure.In the time that air pulse sprays, instantaneous pressure air is because Venturi tube inducing action is aspirated around higher than secondary gas flow of five times itself and poured filter bag.The pressure producing is made 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.
Accompanying drawing explanation
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, 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 casing below, and air port is outputed at the top of casing, and filter bag is in casing; Described filter bag has multiple; Air inlet duct is the case intracorporeal space of air inlet to each filter bag, and exhaust passage is the case intracorporeal space to air outlet in each filter bag, and 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; In injection tube, be connected with multiple nozzles, nozzle is towards the openend of a filter bag;
Described multiple 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 form 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 air valve compressed air gas source.
Described gate-controlled switch is lift valve.
Described air inlet is opened on ash bucket, and 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, comprises ash bucket, casing, filter bag, air inlet, air outlet, air inlet duct, exhaust passage, pulse spraying equipment; Ash bucket is positioned at casing below, and air port is outputed at the top of casing, and filter bag is in casing; Described filter bag has multiple; Air inlet duct is the case intracorporeal space of air inlet to each filter bag, and exhaust passage is the case intracorporeal space to air outlet in each filter bag, and 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; In injection tube, be connected with multiple nozzles, nozzle is towards the openend of a filter bag;
It is characterized in that described multiple 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 form 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 air valve compressed air gas source.
2. according to its online dedusting pulse bag type dust collector claimed in claim 1, it is characterized in that described gate-controlled switch is lift valve.
3. according to its online dedusting pulse bag type dust collector claimed in claim 1, it is characterized in that described air inlet opens on ash bucket, position is on the top of ash bucket side.
4. according to its online dedusting pulse bag type dust collector claimed in claim 1, it is characterized in that described ash bucket below is connected with ash-discharging device.
5. according to its online dedusting pulse bag type dust collector claimed in claim 1, it is characterized in that described nozzle is Venturi tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210425309.6A CN103785243A (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 |
|---|---|---|---|
| CN201210425309.6A CN103785243A (en) | 2012-10-31 | 2012-10-31 | Online dust removal pulse bag dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103785243A true CN103785243A (en) | 2014-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210425309.6A Pending CN103785243A (en) | 2012-10-31 | 2012-10-31 | Online dust removal pulse bag dust collector |
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| CN (1) | CN103785243A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081436A (en) * | 2019-05-28 | 2019-08-02 | 江苏冰溶重型机械有限公司 | A kind of dual firing chamber's smoke prevention and dust control boiler |
| CN110167656A (en) * | 2016-11-16 | 2019-08-23 | 格洛克保健科学研究有限责任公司 | Product gas filter including filter candle and zeolite feeding mechanism |
| CN112007445A (en) * | 2020-09-29 | 2020-12-01 | 中材亨达水泥有限公司 | Air box type pulse bag dust removal system and method |
-
2012
- 2012-10-31 CN CN201210425309.6A patent/CN103785243A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110167656A (en) * | 2016-11-16 | 2019-08-23 | 格洛克保健科学研究有限责任公司 | Product gas filter including filter candle and zeolite feeding mechanism |
| CN110081436A (en) * | 2019-05-28 | 2019-08-02 | 江苏冰溶重型机械有限公司 | A kind of dual firing chamber's smoke prevention and dust control boiler |
| CN112007445A (en) * | 2020-09-29 | 2020-12-01 | 中材亨达水泥有限公司 | Air box type pulse bag dust removal system and method |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140514 |