CN105903294B - A kind of granular gas purifier and purification method for exempting from blowback - Google Patents
A kind of granular gas purifier and purification method for exempting from blowback Download PDFInfo
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- CN105903294B CN105903294B CN201610533370.0A CN201610533370A CN105903294B CN 105903294 B CN105903294 B CN 105903294B CN 201610533370 A CN201610533370 A CN 201610533370A CN 105903294 B CN105903294 B CN 105903294B
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- Prior art keywords
- dust
- filter membrane
- gas
- collection area
- blowback
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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
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—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 series
-
- 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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- 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
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
-
- 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
- B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
- B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2267/00—Multiple filter elements specially adapted for separating dispersed particles from gases or vapours
- B01D2267/40—Different types of filters
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of granular gas purifier and purification method for exempting from blowback, it is characterised in that：The device is horizontal type structure, including the housing laterally set；Some dust removing units are vertically provided with housing interior edge, each dust removing units are fitted with grain bed, dust filter membrane area is both provided with the left of each grain bed；The bottom of housing has extended downwardly dust collection area；In use, dusty gas is discharged after being purified by Bed Filtration, dust accumulation forms dust filter membrane in dust filter membrane area, when ulking thickness exceeds dust filter membrane area, beyond partly falling under gravity into dust collection area.The gas purifier and purification method of the present invention, can not only save the blowback step of existing equipment, but also dust filter membrane can be protected not to be destroyed, so as to improve filter efficiency.
Description
Technical field
The present invention relates to a kind of granular gas purifier and purification method for exempting from blowback, belong to environmental science and technology field.
Background technology
Granular bed gas purifying device, it is a kind of usual means of industrial dust laden air dedusting, its use principle is housing
Grain bed is provided with interior ventilation terminal, ash-laden gas import, clean gas outlet and blowback air import, anti-are respectively provided with housing
Flushing air outlet.When work starts, blowback air import and blowback air outlet are closed, dusty gas enters from ash-laden gas import, passes through
Grain bed removes dust, then is drawn from clean gas outlet, but after a certain period of use time, various impurity and dust can be accumulated,
So as to influence filter effect.At this time, it may be necessary to be stopped, ash-laden gas import and clean gas outlet are closed, using back blowing machine, from
Blowback air import blasts air, by grain bed, exports and draws from blowback air, can so allow collection to stay in the dust quilt of grain bed
Take away, reach the purpose for recovering dust removing effects.Two major drawbacks are so done：First, phase poor filtration effect before filtration.With
The accumulation of dust, dust filter membrane can be formed in particle layer surface so that filter effect is more preferable, now to air cleaning rate most
Height, and blowback can destroy dust filter membrane so that the preliminary stage dust removing effects reused after blowback are deteriorated.Second, blowback meeting
Cause the interruption of dedusting, and operation is relatively cumbersome, also results in the increase of device manufacturing cost.
Therefore, improve or research and develop the dust removal method and equipment that can avoid and overcome drawbacks described above, it appears particularly important.
The content of the invention
The present invention is to avoid the weak point present in above-mentioned prior art, there is provided a kind of gas purifier for exempting from blowback
And purification method, it is intended to simplify purification process, improve efficiency of dust collection.
The present invention adopts the following technical scheme that to solve technical problem：
A kind of granular gas purifier for exempting from blowback, it is characterised in that：The clarifier is horizontal type structure, including transverse direction
The housing of setting；Dust-laden air inlet is provided with the left of the housing, right side is provided with clean gas outlet；
Some dust removing units are vertically provided with the housing interior edge, grain bed are installed in each dust removing units, described
The arranged on left and right sides of grain bed is separately provided for fixing the wire netting and air distribution plate of grain bed；In the left side of the wire netting
It is provided with dust filter membrane area；Wire netting is fixed with the outside of the dust filter membrane area；
The bottom of the housing has extended downwardly dust collection area, the dust collection area be located at the wire netting just under
Side.
The width in the dust filter membrane area is 5~30mm.
It is provided with the middle and upper part in the dust collection area and is opened for being spaced the dust collection area of housing and dust collection area
Close；Sealable dust outlet is provided with dust collection area bottom.
The through hole that some supplied gas pass through is provided with the air distribution plate.Air distribution plate can be set with monoblock type, also can root
According to dust removing units, subdivision setting is carried out.
By baffle interval between each dust removing units, each dust removing units are an independent cleaning systems, mutually not shadow
Ring.
The method purified using above-mentioned gas purifier to dusty gas is：
(1) dusty gas is passed through housing from dust-laden air inlet, purified from left to right by grain bed, dusty gas
Dust filter membrane area accumulation of the middle dust on the left of grain bed, gained purification gas are drawn from clean gas outlet；
(2) with the accumulation of dust, dust filter membrane is formed in dust filter membrane area, the dust filter membrane can improve dedusting effect
Fruit；
(3) when dust accumulation is to when exceeding the wire netting on the outside of dust filter membrane area, the dust outside wire netting is at itself
Peeled off under Action of Gravity Field, fall into dust collection area, the dust filter membrane on the left of grain bed is consistent with dust filter membrane sector width,
So that the flow resistance of air will not increase, gas flow will not reduce, ensure dust separation effect；
(4) when dust accumulation height switchs close to dust collection area in dust collection area, dust collection area switch is closed,
Sealable dust outlet is opened, dust is discharged into dust collection area；Then turn off sealable dust outlet, open dust
Collecting region switchs；In the process, purifier continues gas purification, continuous work without shutting down.
Compared with the prior art, beneficial effects of the present invention are embodied in：
(1) the drawbacks of present invention is directed to existing granular gas purifier, devises the particle for exempting from a blowback bed gas
Clarifier, its peeling is made by dust own wt, so that the thickness of dust filter membrane is held essentially constant so that air drag
Do not increase, gas flow does not reduce, and meets requirement, eliminates the blowback step of existing equipment, simplifies purification process.
(2) in use, there is intact dust filter membrane in dust filter membrane area to gas purifier of the invention all the time,
The process re-formed again after existing apparatus is removed established dust filter membrane by blowback completely is avoided, namely is avoided
Early stage dust filter membrane formation stages poor filtration effect process, so as to improve efficiency of dust collection.
(3) clarifier of the invention is during dust in removing dust collection area, it is not necessary to shuts down, substantially increases
Equipment service efficiency, realizes and works continuously.
(4) the wide 5~30mm in dust filter membrane area of the invention, ensure that the thickness of dust filter membrane is suitable.
Brief description of the drawings
Fig. 1 is the structural representation for the granular gas purifier that the present invention exempts from blowback.
Fig. 2 exempts from one of filtering schematic diagram of granular gas purifier of blowback for the present invention.
Fig. 3 is the two of the filtering schematic diagram for the granular gas purifier that the present invention exempts from blowback.
Label in figure：1 housing；1a dust-laden air inlets；1b clean gas outlets；2 grain beds；3 wire nettings；4 air distribution plates；5 powder
Dirt filter membrane area；6 wire nettings；7 dust collection areas；7a dust collections area switchs；7b sealable dust outlets；8 dust.
Embodiment
As shown in figure 1, a kind of granular gas purifier for exempting from blowback, it is horizontal type structure, including the shell laterally set
Body 1；Dust-laden air inlet 1a is provided with the left side of housing 1, right side is provided with clean gas outlet 1b；
Some dust removing units are vertically provided with the housing interior edge, grain bed 2 are installed, in particle in each dust removing units
The arranged on left and right sides of bed 2 is separately provided for fixing the wire netting 3 and air distribution plate 4 of grain bed；Set in the left side of wire netting 3
There is dust filter membrane area 5；Wire netting 6 is fixed with the outside in dust filter membrane area 5；
The bottom of housing 1 has extended downwardly dust collection area 7, and dust collection area 7 is located at the underface of wire netting 6.
When it is implemented, the width in dust filter membrane area 5 is arranged to 5~30mm.
The dust collection area for being spaced housing and dust collection area is provided with the middle and upper part in dust collection area 7 to switch
7a；Sealable dust outlet 7b is provided with the bottom of dust collection area 7.
The through hole that some supplied gas pass through is provided with air distribution plate 4.
Pass through baffle interval between each dust removing units.Particle diameter of filter medium in grain bed is between 0.1~5mm, according to reality
Can be individual layer filtrate or the multilayer filtrate of different-grain diameter layer distributed.
Concretely comprised the following steps using what above-mentioned gas purifier was purified to dusty gas：
(1) dusty gas is passed through housing from dust-laden air inlet, purified from left to right by grain bed, dusty gas
Dust filter membrane area accumulation of the middle dust on the left of grain bed, gained purification gas are drawn from clean gas outlet；
(2) with the accumulation of dust, dust filter membrane is formed in dust filter membrane area, the dust filter membrane can improve dedusting effect
Fruit；
(3) when dust accumulation is to when exceeding the wire netting on the outside of dust filter membrane area, the dust outside wire netting is at itself
Peeled off under Action of Gravity Field, fall into dust collection area, the dust filter membrane thickness on the left of grain bed is kept with dust filter membrane sector width
Unanimously, so that the flow resistance of air will not increase, gas flow will not reduce, dust separation effect is ensured；
(4) when dust accumulation height switchs close to dust collection area in dust collection area, dust collection area switch is closed,
Sealable dust outlet is opened, dust is discharged into dust collection area；Then turn off sealable dust outlet, open dust
Collecting region switchs；In the process, purifier continues gas purification, continuous work without shutting down.
Claims (6)
- A kind of 1. granular gas purifier for exempting from blowback, it is characterised in that：The clarifier is horizontal type structure, including is laterally set The housing (1) put；Dust-laden air inlet (1a) is provided with the left of the housing (1), right side is provided with clean gas outlet (1b)；Some dust removing units are vertically provided with the housing interior edge, grain bed (2) are installed, at described in each dust removing units The arranged on left and right sides of grain bed (2) is separately provided for fixing the wire netting (3) and air distribution plate (4) of grain bed；In the wire netting (3) dust filter membrane area (5) is provided with the left of；Wire netting (6) is fixed with the outside of the dust filter membrane area (5)；The bottom of the housing (1) has extended downwardly dust collection area (7), and the dust collection area (7) is located at the wire netting (6) underface.
- 2. the granular gas purifier according to claim 1 for exempting from blowback, it is characterised in that：The dust filter membrane area (5) width is 5~30mm.
- 3. the granular gas purifier according to claim 1 for exempting from blowback, it is characterised in that：In the dust collection area (7) the dust collection area that middle and upper part is provided with for being spaced housing and dust collection area switchs (7a)；In the dust collection Area (7) bottom is provided with sealable dust outlet (7b).
- 4. the granular gas purifier according to claim 1 for exempting from blowback, its characteristic are：In the air distribution plate (4) On be provided with the through hole that some supplied gas pass through.
- 5. the granular gas purifier according to claim 1 for exempting from blowback, its characteristic are：Lead between each dust removing units Cross baffle interval.
- A kind of 6. method for gas purification, it is characterised in that：Utilize the particle bed gas described in any one in Claims 1 to 55 Clarifier purifies to dusty gas, concretely comprises the following steps：(1) dusty gas is passed through housing from dust-laden air inlet, purified from left to right by grain bed, powder in dusty gas Dust filter membrane area accumulation of the dirt on the left of grain bed, gained purification gas are drawn from clean gas outlet；(2) with the accumulation of dust, dust filter membrane is formed in dust filter membrane area, the dust filter membrane can improve dust separation effect Fruit；(3) when dust accumulation is to when exceeding the wire netting on the outside of dust filter membrane area, the dust outside wire netting is in self gravitation Effect is lower to peel off, and falls into dust collection area, the dust filter membrane thickness on the left of grain bed is consistent with dust filter membrane sector width, So that the flow resistance of air will not increase, gas flow will not reduce, ensure dust separation effect；(4) when dust accumulation height switchs close to dust collection area in dust collection area, dust collection area switch is closed, is opened Sealable dust outlet, dust is discharged into dust collection area；Then turn off sealable dust outlet, open dust collection Area switchs；In the process, purifier continues gas purification, continuous work without shutting down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610533370.0A CN105903294B (en) | 2016-07-07 | 2016-07-07 | A kind of granular gas purifier and purification method for exempting from blowback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610533370.0A CN105903294B (en) | 2016-07-07 | 2016-07-07 | A kind of granular gas purifier and purification method for exempting from blowback |
Publications (2)
| Publication Number | Publication Date |
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| CN105903294A CN105903294A (en) | 2016-08-31 |
| CN105903294B true CN105903294B (en) | 2017-11-17 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861315B (en) * | 2017-02-25 | 2022-11-18 | 秦皇岛同力达环保能源股份有限公司 | High temperature membrane dust removal subassembly and high temperature membrane dust remover |
| CN107321090A (en) * | 2017-08-21 | 2017-11-07 | 江阴远帆环保科技有限公司 | Hot precipitator |
| CN109081428B (en) * | 2018-09-14 | 2024-05-24 | 大连宇都环境技术材料有限公司 | Filler collecting device and method for water treatment SIFAS system |
| CN109205766A (en) * | 2018-09-14 | 2019-01-15 | 大连宇都环境技术材料有限公司 | Water process SIFAS system filler collection device and method |
| CN113797654B (en) * | 2021-08-30 | 2023-12-05 | 华能秦煤瑞金发电有限责任公司 | Denitration reactor pre-dedusting device |
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| GB191320700A (en) * | 1913-04-14 | 1914-03-26 | Johannes Herbing | Process and Apparatus for Extracting Dust from Air or Vapour. |
| US5198002A (en) * | 1992-03-12 | 1993-03-30 | The United States Of America As Represented By The United States Department Of Energy | Gas stream clean-up filter and method for forming same |
| JP3028466B2 (en) * | 1996-03-05 | 2000-04-04 | 弘 瀬戸 | Moving bed granular dust collector |
| CN1072025C (en) * | 1998-05-22 | 2001-10-03 | 中国科学院山西煤炭化学研究所 | Granular filtering process with surficial filter plate and moving bed and its apparatus |
| CN101254383B (en) * | 2007-12-03 | 2010-06-09 | 张和璞 | Closed type air filtering core cleaning assembly |
| EP2614870B1 (en) * | 2012-01-11 | 2014-03-19 | ABB Oy | Apparatus and method for removing dirt from gas flow |
| KR101179791B1 (en) * | 2012-06-28 | 2012-09-04 | 고상옥 | Collecting apparatus for UV paint dust |
| CN203342542U (en) * | 2013-05-08 | 2013-12-18 | 安徽省元琛环保科技有限公司 | Dedusting and denitration integrated functional filter material |
| CN205995182U (en) * | 2016-07-07 | 2017-03-08 | 合肥吉纳新材料科技有限公司 | A kind of granular gas purifier exempting from blowback |
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