CN105688522B - A kind of dedusting filter and method - Google Patents
A kind of dedusting filter and method Download PDFInfo
- Publication number
- CN105688522B CN105688522B CN201610143273.0A CN201610143273A CN105688522B CN 105688522 B CN105688522 B CN 105688522B CN 201610143273 A CN201610143273 A CN 201610143273A CN 105688522 B CN105688522 B CN 105688522B
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- Prior art keywords
- tube sheet
- filter element
- filter
- housing
- admission line
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/58—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
Abstract
The invention discloses a kind of dedusting filter and method.Wherein, dedusting filter includes：Housing provided with air inlet and gas outlet, air inlet are arranged on the bottom of housing, and gas outlet is arranged on the upper end of housing；Tube sheet, tube sheet are provided with least one through hole, and tube sheet is arranged on enclosure interior, and is located between air inlet and the gas outlet of housing；At least one filter element, filter element are arranged on the lower section of enclosure interior and the through hole positioned at tube sheet, and its upper end is fixed on tube sheet；Admission line, the air inlet of admission line through housing are extended in housing, and the gas outlet of admission line is located at the lower section of tube sheet；The backflow structure being arranged on above tube sheet, through hole of its outgassing direction towards tube sheet.The dedusting filter of the present invention is simple and reasonable, can effectively reduce the load of filter element, and reentrainment of dust is effectively prevent during blowback the problem of, so as to improve the efficiency of dust collection of dedusting filter, reduces cost.
Description
Technical field
The present invention relates to the structure of dust removal and filtration and method design field, espespecially a kind of dedusting filter and side
Method.
Background technology
Increasing dust arrester tendency is using a kind of continuous on-line regeneration dust pelletizing system, specific manifestation form at present
For, all filter elements are arranged in a big filter head housings body, and it is divided into several subregions, mutually interconnected between subregion
It is logical, and each subregion is furnished with single blowback pipeline, when filter needs pulse cleaning, only carries out blowback to a subregion,
Other subregions carry out dust removal and filtration, it is achieved thereby that filtering and blowback are carried out simultaneously.
It is floor space and equipment valve quantity the advantages of existing dust arrester compared with the dust pelletizing system of the more bins of tradition
Substantially reduce, and control program is simple.But existing dust arrester still suffers from shortcoming, because manufacturer adopts mostly
With the mode from filter bottom air inlet, i.e., the airintake direction of gas to be filtered is from bottom to top, this can cause filter in blowback
When, the gas to be filtered that the dust filter cake that is dropped by gravitational settling is easily raised is broken up, and as gas to be filtered rises and shape
Into reentrainment of dust, the dust particle of rising quickly returns to form filter cake on filter core again, so as to cause filter recoil revival
The problem of fruit is poor, filtration pressure difference is high, blowback is frequent and air consumption is big, also result in filter element blocking.Especially
For when density is relatively low, the less dust of particle diameter filters, the phenomenon of reentrainment of dust is more obvious.
Therefore, the applicant is directed to providing a kind of new dedusting filter and method.
The content of the invention
It is an object of the invention to provide a kind of dedusting filter and method, and wherein dedusting filter is simple in construction, if
Meter is reasonable, can effectively reduce the load of filter element, further reduce the frequency that blowback is carried out to filter element, reduces anti-
Blow air consumption, and reentrainment of dust is effectively prevent during blowback the problem of, so as to effectively improve dedusting filter
Efficiency of dust collection, dust removing effects are optimized, reduce dedusting cost.
In order to solve the above technical problems, the invention provides a kind of dedusting filter, including：Housing, on the housing
Provided with air inlet and gas outlet, the air inlet is arranged on the bottom of the housing, and the gas outlet is arranged on the housing
Upper end；Tube sheet, the tube sheet are provided with least one through hole, and the tube sheet is arranged on the enclosure interior, and is located at institute
State between the air inlet of housing and gas outlet；At least one filter element, the filter element be arranged on the enclosure interior and
Positioned at the lower section of the through hole of the tube sheet, its upper end is fixed on the tube sheet；Admission line, the admission line pass through institute
The air inlet for stating housing is extended in the housing, and the gas outlet of the admission line is located at the lower section of the tube sheet；Blowback knot
Structure, the backflow structure are arranged on the top of the tube sheet, the through hole of the outgassing direction of the backflow structure towards the tube sheet.
Preferably, the backflow structure includes a total pipeline and at least one sub-pipes, and the sub-pipes are fixed on institute
State on total pipeline and connected with the total pipeline, the injection mouth of the sub-pipes is towards the through hole on the tube sheet, and each institute
State and a valve is equipped with sub-pipes.
Preferably, the corresponding filtering subregion of each sub-pipes, and each sub-pipes are provided with least one
Mouth is blown, at least one filter element is correspondingly provided with below each injection mouth.
Preferably, the dedusting filter also includes：At least one anti-wear sleeve pipe, the anti-wear sleeve pipe are set in
On the filter element, and positioned at the upper end of the filter element.
Preferably, the height of the anti-wear sleeve pipe is equal to or more than the upper surface of the admission line and the tube sheet
The distance between lower surface；And/or；The internal diameter of the anti-wear sleeve pipe is bigger 2~5mm than the external diameter of the filter element；With/
Or；The anti-wear sleeve pipe is fastened on the tube sheet by welding or flange.
Preferably, the upper end of the admission line is fixed on the tube sheet by a connection piece.
Preferably, the center of tube sheet described in the gas outlet face of the admission line；And/or；The admission line it is upper
Spacing between end face and the lower surface of the tube sheet is 2~3 times of the diameter of the admission line.
Preferably, the lower surface of the filter element is located at the top of the air inlet of the housing；Or；The filter element
Number to be multiple, and multiple filter elements are distributed on the surrounding of the admission line.
Preferably, the distance between air inlet of the lower surface of the filter element and the housing is 500~1000mm.
The invention also discloses a kind of dust removal and filtration method, the dust removal and filtration method fills applied to above-mentioned dust removal and filtration
Put, including step：
S10：Make gas to be filtered from top to bottom by the filter element；
S20：The filter element filters the gas to be filtered, obtains clean gas, and on the surface of the filter element
Form filter cake；
S30：Discharge the clean gas；
S40：Purge gas is sprayed to the filter element, and the injection direction of the purge gas is institute from top to bottom
State the filter cake that purge gas blows off the filter element surface.
The dedusting filter and method of the present invention can realize following at least one beneficial effect：
1st, dedusting filter of the invention makes gas to be filtered pass through from top to bottom by ingenious arrangement admission line
Filtering element, because circulating direction of the gas to be filtered on filter element is identical with dust gravitational settling direction, therefore gas to be filtered
Midst density or the larger particle of granularity need not move through filter element and are directly deposited in the bottom of housing, in addition, treating air filtration
Body Midst density or the less particle of particle diameter are trapped within filter element surface and form filter cake, so as to realize the gas-solid of gas to be filtered
Separation, the load that can effectively reduce filter element is so set, so as to reduce the maintenance cost of filter element；
2nd, when dedusting filter of the invention needs to backwash filter element, by backflow structure to crossing filtering element
Part sprays blowback air, because the outgassing direction of backflow structure is arranged under the through hole of tube sheet towards tube sheet through hole and filter element
Side, therefore the injection direction of blowback air is consistent with the circulating direction of gas to be filtered, can be with so as to accelerate the sedimentation of filter cake
Gas to be filtered and the inconsistent filter cake for breaing up filter element surface in blowback air circulation direction are effectively avoided, is further effectively avoided
The phenomenon of reentrainment of dust；
3rd, the sub-pipes in dedusting filter of the invention in backflow structure are correspondingly provided with a filter element or more
Individual filter element, a sub-pipes and its corresponding filter element are a subregion, i.e. can include in a subregion one or
The multiple filter elements of person, and when needing blowback, blowback only can be carried out to a subregion, multiple subregions can also be carried out anti-
Blow, the application flexibility that can effectively lift the dedusting filter of the present invention is so set；
4th, the upper end of filter element is provided with anti-wear sleeve pipe in dedusting filter of the invention, due to admission line
Gas flow rate to be filtered at gas outlet is big and dust concentration is high, thus filter element close to the upper end of admission line easily by
Damage, and by setting an anti-wear sleeve pipe it is possible to prevente effectively from abrasion of the gas to be filtered to filter element, so as to effectively extend
The service life of filtering element；
5th, upper surface of the height not less than admission line of anti-wear sleeve pipe and tube sheet in dedusting filter of the invention
The distance between lower surface, its internal diameter is more than the external diameter of filter element, and anti-wear sleeve pipe passes through welding or flange connects
It is fixed on tube sheet, these settings can effectively lift the installation steadiness of anti-wear sleeve pipe, further improve it to filtering
The protective effect of element；
6th, dust removal and filtration method and step of the invention is simple, by making gas to be filtered from top to bottom by filter element,
So as to effectively reduce the load of filter element, then by making the blowback filter element of purge gas from top to bottom, so as to avoid
Due to the gas to be filtered phenomenon for causing filter cake to be dispelled opposite with purge gas circulating direction, it further avoid reentrainment of dust and show
As.
Brief description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description：
Fig. 1 is a kind of structural representation of specific embodiment of the dust removal by filtration device of the present invention.
Drawing reference numeral explanation：
Housing 10, air inlet 11, gas outlet 12；Tube sheet 20；Filter element 30；Admission line 40；Backflow structure 50, house steward
Road 51, sub-pipes 52, valve 53；Anti-wear sleeve pipe 60；Connector 70；First direction A, second direction B, third direction C.
Embodiment
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Embodiment one
Embodiment one discloses a kind of dedusting filter, including：Housing, housing are provided with air inlet and gas outlet, entered
Gas port is arranged on the bottom of housing, and gas outlet is arranged on the upper end of housing；Tube sheet, tube sheet are provided with least one through hole,
Tube sheet is arranged on the enclosure interior, and is located between air inlet and the gas outlet of housing；At least one filter element, cross filtering element
Part is arranged on the lower section of enclosure interior and the through hole positioned at tube sheet, and its upper end is fixed on tube sheet；Admission line, admission line
Air inlet through housing is extended in housing, and the gas outlet of admission line is located at the lower section of tube sheet；Backflow structure, backflow structure
It is arranged on the top of tube sheet, the through hole of the outgassing direction of backflow structure towards tube sheet.
The dedusting filter of the present invention makes gas to be filtered pass through filtering from top to bottom by ingenious arrangement admission line
Element, because circulating direction of the gas to be filtered on filter element is identical with dust gravitational settling direction, therefore in gas to be filtered
Density or the larger particle of granularity need not move through filter element and are directly deposited in the bottom of housing；In addition, gas to be filtered
Midst density or the less particle of particle diameter are trapped within filter element surface and form filter cake, so as to realize the gas-solid of gas to be filtered point
From so setting can effectively reduce the load of filter element, so as to avoid the maintenance cost of filter element.
The dedusting filter of the present invention is when needing to backwash filter element, by backflow structure to filter element
Blowback air is sprayed, because the outgassing direction of backflow structure is arranged under the through hole of tube sheet towards tube sheet through hole and filter element
Side, therefore the injection direction of blowback air is consistent with the circulating direction of gas to be filtered, can be with so as to accelerate the sedimentation of filter cake
Effectively avoid gas to be filtered and blowback air circulation direction is inconsistent breaks up the filter cake of filter element surface, and then effectively prevent
The phenomenon of reentrainment of dust.
Embodiment two
Compared to embodiment one, embodiment two thes improvement is that, in the dedusting filter disclosed in embodiment two
Backflow structure include a total pipeline and multiple sub-pipes, sub-pipes are fixed on total pipeline and connected with total pipeline, each
Sub-pipes have an injection mouth, and injection mouth is equipped with a valve towards the through hole on tube sheet on each sub-pipes.Specifically
, it is correspondingly provided with a filter element below each injection mouth of sub-pipes.
Sub-pipes in dedusting filter in the present embodiment in backflow structure are correspondingly provided with a filter element, one
Sub-pipes and its corresponding filter element are a subregion, and when needing blowback, only can carry out blowback to a subregion, also may be used
To carry out blowback to multiple subregions, the application flexibility that can effectively lift the dedusting filter of the present invention is so set.
Certainly, in other embodiments, a sub-pipes can be only included in backflow structure；It can be set on one sub-pipes
Multiple injection mouths；And multiple filter elements can also be correspondingly arranged below each injection mouth of sub-pipes.
Embodiment three
Compared to embodiment one, embodiment three thes improvement is that, dedusting filter disclosed in embodiment three also wraps
Include：Multiple anti-wear sleeve pipes, anti-wear sleeve pipe are set on filter element, and positioned at the upper end of filter element.
Specifically, the height of anti-wear sleeve pipe is equal to the distance between the upper surface of admission line and the lower surface of tube sheet；
The internal diameter of anti-wear sleeve pipe is bigger 2~5mm than the external diameter of filter element；Anti-wear sleeve pipe is fastened on tube sheet by flange,
The installation steadiness of anti-wear sleeve pipe can effectively be lifted by so setting, and further improve its protective effect to filter element.
Because the gas flow rate to be filtered at the gas outlet of admission line is big and dust concentration is high, thus filter element close to enter
The upper end of feed channel is easily impaired, and by an anti-wear sleeve pipe is set it is possible to prevente effectively from filter element it is impaired, so as to
Extend its service life.
Certainly, in other embodiments, the height of anti-wear sleeve pipe can also be more than upper surface and the tube sheet of admission line
The distance between lower surface；Anti-wear sleeve pipe can also be fixed by welding on tube sheet.
Example IV
Compared to embodiment one, example IV thes improvement is that, in the dedusting filter disclosed in example IV
The upper end of admission line is fixed on tube sheet by a connection piece, and connector herein can be pull bar.So setting can be with
Make the installation of admission line more firm, so as to improve the overall structural stability of device.
Specifically, the center of the gas outlet face tube sheet of admission line, so setting can make to be filtered in admission line
Gas passes through filter element with being more uniformly distributed；Spacing between the upper surface of admission line and the lower surface of tube sheet is admission line
2~3 times of diameter.
Specifically, the lower surface of filter element is located at the top of the air inlet of housing, and the lower surface of filter element and shell
The distance between air inlet of body is 500~1000mm, the number of filter element be it is multiple, and multiple filter elements be distributed on into
The surrounding of feed channel.
Certainly in other embodiments, the connector between admission line and tube sheet can be rigid connector, for example draw
Bar etc., or flexible connecting member, such as drawstring etc.；The center of the gas outlet of admission line not necessarily face tube sheet；Admission line
The distance between air inlet of the distance between tube sheet and filter element and housing can be adjusted according to Practical Project
It is whole；Filter element can also be non-uniformly distributed as required around admission line.
Embodiment five
As shown in figure 1, embodiment five is a kind of more preferred embodiment of the dedusting filter of the present invention, including：
Housing 10, housing 10 are provided with air inlet 11 and gas outlet 12, and air inlet 11 is arranged on the bottom of housing 10, and gas outlet 12 is set
Put in the upper end of housing 10；Tube sheet 20, tube sheet 20 are provided with multiple through holes, and tube sheet 20 is arranged on inside housing 10, and is located at
Between the air inlet 11 of housing 10 and gas outlet 12；Multiple filter elements 30, filter element 30 are arranged on the inside of housing 10 and position
In the lower section of the through hole of tube sheet 20, its upper end is fixed on tube sheet 20；Admission line 40, admission line 40 pass through housing 10
Air inlet 11 is extended in housing 10, and the gas outlet 12 of admission line 40 is located at the lower section of tube sheet 20；Backflow structure 50, blowback knot
Structure 50 is arranged on the top of tube sheet 20, the through hole of the outgassing direction of backflow structure 50 towards tube sheet.
Specifically, backflow structure 50 includes a total pipeline 51 and multiple sub-pipes 52, the corresponding mistake of each sub-pipes
Subregion is filtered, sub-pipes 52 are fixed on total pipeline 51 and are connected with total pipeline 51, and the injection mouths of sub-pipes 52 is towards on tube sheet 20
Through hole, and a valve 53 is equipped with each sub-pipes 52, and one is correspondingly provided with below the injection mouth of a sub-pipes 52
Individual filter element 30.
Specifically, dedusting filter also includes multiple anti-wear sleeve pipes 60, anti-wear sleeve pipe 60 is set in filter element
On 30, and positioned at the upper end of filter element 30, and in the present embodiment, be equipped with each filter element 30 one it is anti-wear
Sleeve pipe 60.
Specifically, the height of anti-wear sleeve pipe 60 is equal between the upper surface of admission line 40 and the lower surface of tube sheet 20
Distance；The internal diameter of anti-wear sleeve pipe 60 is bigger 2~5mm than the external diameter of filter element 30；Anti-wear sleeve pipe 60 is fixed by welding in
On tube sheet 20.
Specifically, the upper end of admission line 40 is fixed on tube sheet 20 by a connection piece 70, and admission line 40
The center of gas outlet face tube sheet 20, the spacing between the upper surface of admission line 40 and the lower surface of tube sheet 20 are admission line
2~3 times of 40 diameter.
Specifically, the lower surface of filter element 30 is located at the top of the air inlet 11 of housing 10, specifically, filter element 30
The distance between the air inlet of lower surface and housing 10 be 500~1000mm, and filter element 30 is distributed on admission line 40
Surrounding.
It is the specific embodiment of the dust removal and filtration method of the present invention below.
The invention also discloses a kind of dust removal and filtration method, and it is applied to the dust removal and filtration dress in any of the above-described embodiment
Put, including step：
S10：Gas to be filtered is set to pass through filter element from top to bottom；
S20：Filter element filters gas to be filtered, obtains clean gas, and form filter cake on the surface of filter element；
S30：Discharge clean gas；
S40：Purge gas is sprayed to filter element, and the injection direction of purge gas is from top to bottom, purge gas blows
Fall the filter cake of filter element surface.
The dust removal and filtration method and step of the present invention is simple, by making gas to be filtered from top to bottom by filter element, from
And effectively reduce the load of filter element, then by make purge gas from top to bottom blow over filtering element, treated so as to avoid
Air filtration body is opposite with purge gas circulating direction to cause filter cake to be dispelled, and further avoid reentrainment of dust phenomenon
Exemplary, as shown in figure 1, the concrete application situation of the embodiment five of the dedusting filter of the present invention is as follows：
A is entered in housing 10 gas to be filtered from admission line 40 along a first direction, due to the outlet of admission line 40
Mouth is positioned at the lower section of tube sheet 20, and under the stop of tube sheet 20, gas to be filtered is from top to bottom by filter element 30, due to treating air filtration
Circulating direction of the body on filter element is identical with dust gravitational settling direction, therefore gas Midst density to be filtered or granularity are larger
Particle need not move through filter element 30 and be directly deposited in the bottom of housing 10；In addition, gas Midst density to be filtered or grain
The surface that the less particle in footpath is trapped within filter element 30 forms filter cake, so as to realize the gas solid separation of gas to be filtered, obtains
Clean gas discharged along second direction B from the gas outlet 12 of housing 10, so can effectively reduce the negative of filter element 30
Lotus, so as to avoid the maintenance cost of filter element 30.
When needing to backwash filter element 30, purge gas enters the master of backflow structure 50 along third direction
In pipeline 51, because the injection mouth of sub-pipes 52 is arranged on towards the through hole on tube sheet 20 and filter element 30 through hole of tube sheet 20
Lower section, therefore the direction of blowback air blowback filter element 30 is consistent by the circulating direction of filter element 30 with gas to be filtered,
This can not only accelerate the sedimentation of filter cake, can also effectively avoid gas to be filtered and blowback air circulation direction is inconsistent broke up
The filter cake on the surface of filtering element 30, so as to effectively prevent the phenomenon of reentrainment of dust.
Also, dedusting filter in the present embodiment can be opened only on a sub-pipes 52 during blowback
Valve 53, blowback then is carried out to its corresponding filter element 30, two or more son pipe can also be opened simultaneously
Valve 53 on road 52, blowback then is carried out to its corresponding filter element 30.
The dedusting filter of the present invention is simple and reasonable, can effectively reduce the load of filter element, further drop
The low frequency that blowback is carried out to filter element, reduces the air consumption during blowback, and effectively kept away during blowback
The problem of having exempted from reentrainment of dust, the pressure difference of filter element is reduced, so as to which the regeneration effect of dedusting filter be effectively ensured,
Efficiency of dust collection is improved, reduces dedusting cost.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (8)
- A kind of 1. dedusting filter, it is characterised in that including：Housing, the housing are provided with air inlet and gas outlet, and the air inlet is arranged on the bottom of the housing, it is described go out Gas port is arranged on the upper end of the housing；Tube sheet, the tube sheet are provided with least one through hole, and the tube sheet is arranged on the enclosure interior, and is located at the housing Air inlet and gas outlet between；At least one filter element, the filter element are arranged on the enclosure interior and under the through holes of the tube sheet Side, its upper end is fixed on the tube sheet；Admission line, the air inlet of the admission line through the housing is extended in the housing, describedThe gas outlet of admission line is located at the lower section of the tube sheet；Backflow structure, the backflow structure are arranged on the top of the tube sheet, and the outgassing direction of the backflow structure is described in The through hole of tube sheet；The backflow structure includes a total pipeline and at least one sub-pipes, the sub-pipes be fixed on the total pipeline and Connected with the total pipeline, the injection mouth of the sub-pipes is equal on the sub-pipes towards the through hole on the tube sheet, and each Provided with a valve；The upper end of the admission line is fixed on the tube sheet by a connection piece.
- 2. dedusting filter as claimed in claim 1, it is characterised in that：Each corresponding filtering subregion of the sub-pipes, and each sub-pipes are provided with least one injection mouth, each At least one filter element is correspondingly provided with below the injection mouth.
- 3. dedusting filter as claimed in claim 1, it is characterised in that also include：At least one anti-wear sleeve pipe, the anti-wear sleeve pipe are set on the filter element, and are located at the filter element Upper end.
- 4. dedusting filter as claimed in claim 3, it is characterised in that：The height of the anti-wear sleeve pipe be equal to or more than upper surface and the tube sheet of the admission line lower surface it Between distance；And/or；The internal diameter of the anti-wear sleeve pipe is bigger 2~5mm than the external diameter of the filter element；And/or；The anti-wear sleeve pipe is fastened on the tube sheet by welding or flange.
- 5. dedusting filter as claimed in claim 1, it is characterised in that：The center of tube sheet described in the gas outlet face of the admission line；And/or；Spacing between the upper surface of the admission line and the lower surface of the tube sheet for the diameter of the admission line 2~ 3 times.
- 6. the dedusting filter as described in any one of claim 1 to 5, it is characterised in that：The lower surface of the filter element is located at the top of the air inlet of the housing；Or；The number of the filter element is multiple, and multiple filter elements are distributed on the surrounding of the admission line.
- 7. dedusting filter as claimed in claim 6, it is characterised in that：The distance between air inlet of the lower surface of the filter element and the housing is 500~1000mm.
- A kind of 8. dust removal and filtration method, it is characterised in that the dust removal and filtration method is applied to any one of claim 1 to 7 Described dedusting filter, including step：S10：Make gas to be filtered from top to bottom by the filter element；S20：The filter element filters the gas to be filtered, obtains clean gas, and formed on the surface of the filter element Filter cake；S30：Discharge the clean gas；S40：Purge gas is sprayed to the filter element, and the injection direction of the purge gas is from top to bottom, it is described anti- Blowing blows off the filter cake of the filter element surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610143273.0A CN105688522B (en) | 2016-03-14 | 2016-03-14 | A kind of dedusting filter and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610143273.0A CN105688522B (en) | 2016-03-14 | 2016-03-14 | A kind of dedusting filter and method |
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| Publication Number | Publication Date |
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| CN105688522A CN105688522A (en) | 2016-06-22 |
| CN105688522B true CN105688522B (en) | 2018-01-12 |
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| CN108148643A (en) * | 2018-02-08 | 2018-06-12 | 江苏优耐特过滤装备有限公司 | Vertical multi-stage separator |
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| CN2562839Y (en) * | 2002-08-31 | 2003-07-30 | 裕东（中山）机械工程有限公司 | Recovering filter for dust or powder spray device |
| CN2805884Y (en) * | 2005-07-25 | 2006-08-16 | 姜超凡 | Pulse bag type filter with air fed from top |
| CN201543343U (en) * | 2009-11-16 | 2010-08-11 | 中冶焦耐(大连)工程技术有限公司 | Bag type dust collector with novel gas intake mode and novel airflow distribution structure |
| CN202860302U (en) * | 2012-10-27 | 2013-04-10 | 江苏苏亚机电制造有限公司 | Concurrent air-intake bag-type dust collector |
| CN104001383B (en) * | 2014-05-30 | 2016-08-24 | 成都易态科技有限公司 | Gas-filtering device and use the method for gas purification of this device |
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| CN205412488U (en) * | 2016-03-14 | 2016-08-03 | 上海蓝科石化环保科技股份有限公司 | Dedusting filter device |
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2016
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| CN105688522A (en) | 2016-06-22 |
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Denomination of invention: A dedusting and filtering device and method Effective date of registration: 20210325 Granted publication date: 20180112 Pledgee: CITIC Bank Limited by Share Ltd. Shanghai branch Pledgor: SHANGHAI LANKE PETROCHEMICAL ENGINEERING & TECHNOLOGY Co.,Ltd. Registration number: Y2021310000020 |
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Date of cancellation: 20211101 Granted publication date: 20180112 Pledgee: CITIC Bank Limited by Share Ltd. Shanghai branch Pledgor: SHANGHAI LANKE PETROCHEMICAL ENGINEERING & TECHNOLOGY Co.,Ltd. Registration number: Y2021310000020 |