CN201127873Y - Low pressure pulsed jet cloth filter - Google Patents
Low pressure pulsed jet cloth filter Download PDFInfo
- Publication number
- CN201127873Y CN201127873Y CNU2007200955323U CN200720095532U CN201127873Y CN 201127873 Y CN201127873 Y CN 201127873Y CN U2007200955323 U CNU2007200955323 U CN U2007200955323U CN 200720095532 U CN200720095532 U CN 200720095532U CN 201127873 Y CN201127873 Y CN 201127873Y
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- CN
- China
- Prior art keywords
- deduster
- dust remover
- room
- main
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The utility model relates to the field of a dust removal device, and provides a low-pressure pulse cloth-bag dust remover, a main dust remover and an auxiliary dust remover of the dust remover adopt an integral structure, the main dust remover comprises a main dust remover air intake and a settlement room, an air stream partition is arranged in the settlement room, the settlement room is divided into a front room and a rear room, the two sides of the air stream partition are respectively provided with a settlement room ventilation hole, a fire resistance wall is hung at the top part of the settlement room, the rear part of the settlement room is provided with a smoke buffer room, the combined part of the settlement room and the smoke buffer room is provided with a lifting board, the smoke buffer room and an gas purification chamber are separated through an oblique main dust remover air inlet and outlet partition, the top part is provided with an off-line lifting valve, the rear part is provided with a main dust remover air outlet; the auxiliary dust remover comprises an auxiliary dust remover air intake and an auxiliary dust remover air outlet; both the main dust remover and the auxiliary dust remover are provided with module dust remover components, both the lower parts of the main and the auxiliary dust removers consist of ash hoppers and flexible supports. The dust remover has reasonable structure, reliable operation, and less repair and maintenance, is not only applied to the high-temperature kiln dust removing operation, but also to the low-temperature dust removing, reduces the production operating cost, and prolongs the service life of a cloth-bag.
Description
Technical field:
The utility model relates to the cleaner field, especially is applicable to the low pressure pulse bag filter that flue gas ash removals such as various coal-burned industrial boilers, high temperature kiln and station boiler are used.
Technical background:
Along with the fast development of global economy and comprehensive progress of society, industrial pollution and urban life pollutant constantly increase, and effectively control is polluted, and improves environmental quality, has become various countries' task of top priority to be solved.And China is again to be the country of main fuel with the coal, and the atmosphere pollution that has determined China thus is coal-smoke pollution, and therefore ten thousand various Industrial Boilers and a large amount of Industrial Stoves administered the main task that smoke discharge amount becomes the atmosphere environmental protection surplus the whole nation had 20 approximately.Cleaner commonly used at present mostly is simple and easy dry method dust, wet dedusting, dried wet dust removal combined, to improve dust removing effects, device structure is huge, invests bigger, take electricity, water wasting, occupation of land is big, maintenance difficulty is big, wet-scrubbing equipment pollutes big to surrounding environment.Sack cleaner because easy to maintenance, operating cost is low, do not produce advantage such as secondary pollution is adopted by numerous domestic enterprise, is the main mode of present dry collector, the research and development strength that domestic deduster manufacturing enterprise drops in this respect is bigger.For example, a kind of modified Low-Pressure Pulse Bag Filter, the patent No. is CN2413776.Be characterized in having set up diversion dust board with special construction at the inner air inlet of deduster place, by reducing the flow velocity of dusty gas, make big dust particle lose inertia and be detained to be captured by dust board and fall into ash bucket through diversion dust board and wall bar crack, thereby realize the preliminary treatment of dusty gas, reduce equipment resistance, reduce the consumption of calming the anger.Sack cleaner effect when the lower flue gas of treatment temperature is better, but along with industrial expansion, large-scale Industrial Stoves, station boiler occur in a large number.These boilers, kiln discharged flue gas temperature height usually contain a large amount of unburnt granule dusts.When handling, owing to the physical characteristic of cloth bag itself is limit, to the another fixed limit of high-temperature capability with the sack cleaner of routine, directly application can make flue-gas temperature too high, unburnt granule dust concentrates on the cloth bag, causes the phenomenon of cloth bag scaling loss, has shortened the whole service life of cloth bag.Address this problem common employing to the flue gas processing of lowering the temperature.If but flue-gas temperature cooling control is bad, lowered the temperature to hang down and can cause the dewfall phenomenon, make dust be bonded at the cloth bag filtering surface, make cloth bag deashing difficulty, cause SR to increase, the smoke treatment amount descends; But when the too high flue gas of temperature is carried out depositing dust, owing to often contain the unburnt particle of high temperature in the flue gas, though handle through cooling, the particle exospheric temperature reduces, but nuclear temperature is still higher in it, be easy to cause particle concentration to form resume combustion and burn filter bag, increase operating cost, therefore present sack cleaner is used under hot environment and is existed significant limitation.
Summary of the invention:
The purpose of this utility model is exactly to be prone to the problem that the unburnt particle of high temperature burns filter bag in cloth bag assembly formation resume combustion when existing cleaner is handled high-temperature flue gas in order to overcome, and a kind of sack cleaner that can effectively remove the oarse-grained lightness of high temperature, efficiency of dust collection height, apparatus body employing modular construction is provided.This deduster is rational in infrastructure, reliable operation, simple to operate, the repair and maintenance amount is little, the scope of application is extensive, not only is suitable for high temperature kiln dedusting operation, also is suitable for the low temperature dedusting, can significantly reduce production and operation cost, prolongs cloth bag service life.
Technical solution of the present utility model has just provided a kind of efficiency of dust collection height, is applicable to the sack cleaner of the high and low temperature flue gas ash removal under the multiple condition.The main deduster of this deduster and secondary deduster adopt integral structure, it is characterized in that, main deduster comprises main deduster air inlet (7), expansion chamber (9), air baffle (17) is arranged in the expansion chamber (9), expansion chamber (9) is divided into two Room, front and back, in air baffle (17) both sides one expansion chamber air vent (18) is arranged respectively, the top of two Room, front and back of expansion chamber (9) is hung with fire wall (10), be embedded with thin flight (19) on the fire wall (10), there is flue gas surge chamber (5) at the rear portion, be provided with a riser (12) in expansion chamber (9) and flue gas surge chamber (5) joint portion, flue gas surge chamber (5) separates by an oblique main deduster turnover air bound plate (13) with air-purifying chamber (11), form the cavity-variable type structure, off-line lift valve (1) is arranged at the top, there is main deduster air outlet (4) at the rear portion; Secondary deduster comprises secondary deduster air inlet (8), secondary deduster air outlet (6); Major and minor deduster all has modularization deduster assembly (2), and the bottom all has ash bucket (14) and flexible support (15) to form.
Above-mentioned fire wall (10) is a double-layer structure for every group, is made up of channel-section steel and thin plate, has multilayer to have the thin flight (19) of fixed angle on the channel-section steel;
Above-mentioned flue gas surge chamber (5) separates by an oblique main deduster turnover air bound plate with air-purifying chamber (11), forms the cavity-variable type structure;
Above-mentioned main deduster and secondary deduster adopt integral structure, and secondary deduster is in main deduster air inlet both sides, and main air intake and secondary air intake, secondary air-out are a chamber three cell structures, are separated by dividing plate (3).
Advantage of the present invention:
1, this deduster is not only applicable to conventional dedusting, is applicable to the high-temperature dust removal of environment such as hot industry kiln yet;
2, can effectively control uncombusted dust granules in the flue dust, solve conventional deduster and easily formed particle concentration resume combustion burning cloth bag problem;
3, each chamber load of main deduster is even, deduster overall resistance loss substantially constant.
Description of drawings:
Fig. 1 is a front view of the present utility model
Fig. 2 is a side view of the present utility model
Fig. 3 is a vertical view of the present utility model
Figure I is the partial enlarged drawing of the utility model fire wall
The specific embodiment:
This deduster is made up of main deduster and secondary deduster two parts.
As seen from Figure 1, main deduster air inlet (7), secondary deduster air inlet (8), secondary deduster air outlet (6) are separated by major-minor deduster air inlet dividing plate (3) and to form different passages in an air-inlet cavity.Both sides are pulse recoil deduster modular assembly, expansion chamber (9) links to each other with main deduster air inlet (7), by expansion chamber air baffle (17) in the interior duplex channel that forms, expansion chamber (9) is divided into two Room, front and back, in air baffle (17) both sides one expansion chamber air vent (18) is arranged respectively, be provided with 1-4 group fire wall (10) in the expansion chamber (9), hang over the top of expansion chamber (9), prevent thermal deformation, there is flue gas surge chamber (5) at the rear portion, be provided with a riser (12) in expansion chamber (9) and flue gas surge chamber (5) joint portion, flue gas surge chamber (5) separates by an oblique main deduster turnover air bound plate (13) with air-purifying chamber (11), form the cavity-variable type structure, there is main deduster air outlet (4) at the rear portion.
As seen from Figure 2, dust remover roof has off-line lift valve (1), is provided with 1-4 group fire wall (10) in the expansion chamber (9), and every group is double-layer structure, is made up of channel-section steel and thin plate, has multilayer to have the thin flight (19) of fixed angle on the channel-section steel.
As seen from Figure 3, expansion chamber (9) links to each other with modularization deduster assembly (2), is provided with a riser (12) in expansion chamber (9) and flue gas surge chamber (5) connection place, is used for control and enters the wind speed of flue gas surge chamber (5) and the big grain dust of interception bottom.Flue gas surge chamber (5) is the cavity-variable type structure, and both sides are modularization deduster assembly (2), and the cavity-variable type structure can realize even distributing wind, guarantees that each pulse recoil deduster modular assembly can evenly work.Whole deduster frame is effectively alleviated thermal deformation on flexible support (15).
Operation principle of the present utility model:
When the equipment operate as normal, ash-laden gas at first enters the expansion chamber cup after entering deduster by air inlet (7,8).Because the effect of expansion chamber air baffle (17), air-flow about this is divided into two strands, because effect of inertia part bulky grain collides at the baffle plate place, absorption, through behind the fire wall, the expansion chamber air vent in the dividing plate both sides forms secondary and turns back and enter the chamber, back all the other air-flows, converges in the surge chamber porch through behind the fire wall along passage, behind surge chamber cloth wind, enter deduster by ash bucket (14).
Flue gas is handled through first order inertial separation, and processing procedures such as partial inertial collision, natural subsidence make that most of grit falls into ash bucket (14) bottom in the flue gas; Flue gas after bi-level treatment is entered the expansion chamber (9) of lower box by ash bucket, behind the cloth bag filtration, grit is delayed at the outside of filter bag, the flue gas that purifies enters the air chamber on casing top by the inside of cloth bag, is entered air outlet (4,6) and is entered atmosphere by the off-line lift valve (1) on the dividing plate again.Along with constantly carrying out of dust removal process, the dust stratification in the cloth bag outside also increases gradually, and grieshoch thickens, thereby the running resistance of deduster is also increased gradually, and when the equipment running resistance reached 1450-1600Pa, the reply cloth bag carried out deashing.At first should close the off-line lift valve (1) of this case during deashing, deashing is finished, and this case off-line lift valve (1) is opened; Deashing process is set by cyclelog, adopt regularly touring mode to spray into the compressed air that pressure is 0.3MPa with the extremely short time to each air chamber, after compressed air enters air-purifying chamber, gas volume can expand rapidly and pour in cloth bag inside, be that cloth bag produces distortion, vibrations, blowing gas produces the effect of contrary air-flow in addition, the dust in the cloth bag outside is blown off get off to fall into ash bucket (14).
Claims (2)
1. low pressure pulse bag filter, the main deduster of this deduster and secondary deduster adopt integral structure, it is characterized in that, main deduster comprises main deduster air inlet, expansion chamber, air baffle is arranged in the expansion chamber, expansion chamber is divided into two Room, front and back, one expansion chamber air vent is respectively arranged in the air baffle both sides, the top of two Room, front and back of expansion chamber is hung with fire wall, be embedded with thin flight on the fire wall, there is the flue gas surge chamber at the rear portion, be provided with a riser at expansion chamber and flue gas surge chamber joint portion, flue gas surge chamber and air-purifying chamber separate by an oblique main deduster turnover air bound plate, form the cavity-variable type structure, and the off-line lift valve is arranged at the top, there is main deduster air outlet at the rear portion; Secondary deduster comprises secondary deduster air inlet, secondary deduster air outlet; Major and minor deduster all has modularization deduster assembly, and the bottom all is made up of ash bucket and flexible support.
2. low pressure pulse bag filter according to claim 1 is characterized in that: above-mentioned fire wall is a double-layer structure for every group, is made up of channel-section steel and thin plate, has multilayer to have the thin flight of fixed angle on the channel-section steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200955323U CN201127873Y (en) | 2007-03-19 | 2007-03-19 | Low pressure pulsed jet cloth filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200955323U CN201127873Y (en) | 2007-03-19 | 2007-03-19 | Low pressure pulsed jet cloth filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201127873Y true CN201127873Y (en) | 2008-10-08 |
Family
ID=40015698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200955323U Expired - Fee Related CN201127873Y (en) | 2007-03-19 | 2007-03-19 | Low pressure pulsed jet cloth filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201127873Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832712A (en) * | 2014-02-28 | 2014-06-04 | 信阳师范学院 | Bin special for collecting glass bead products |
| CN107297107A (en) * | 2017-07-27 | 2017-10-27 | 广州市番禺盛达穗南有限公司 | Pulsed bag-type dust equipment |
-
2007
- 2007-03-19 CN CNU2007200955323U patent/CN201127873Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832712A (en) * | 2014-02-28 | 2014-06-04 | 信阳师范学院 | Bin special for collecting glass bead products |
| CN103832712B (en) * | 2014-02-28 | 2016-06-15 | 信阳师范学院 | A kind of glass bead product collects special feed bin |
| CN107297107A (en) * | 2017-07-27 | 2017-10-27 | 广州市番禺盛达穗南有限公司 | Pulsed bag-type dust equipment |
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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: 20081008 Termination date: 20160319 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |