CN104826414A - Flexible metal film-based bag filler - Google Patents
Flexible metal film-based bag filler Download PDFInfo
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- CN104826414A CN104826414A CN201510183910.2A CN201510183910A CN104826414A CN 104826414 A CN104826414 A CN 104826414A CN 201510183910 A CN201510183910 A CN 201510183910A CN 104826414 A CN104826414 A CN 104826414A
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- flexible
- metal film
- sack cleaner
- filtration
- filter bag
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Abstract
The present invention provides a flexible metal film-based bag filler, which comprises a casing, a tube nest and a positioning rod. The tube nest and the positioning rod are respectively connected with the inner wall of the casing. The casing is provided with an air inlet and an air exhaust port. The bag filler is characterized in that the casing is internally provided with a filter bag and the filtering structure of the filter bag is in the form of a flexible porous metal film. The axial two ends of the filter bag are respectively connected with the tube nest and the positioning rod to be mutually supported. The connection part of the filter bag with the tube nest is provided with a through hole in communication with the air exhaust port. The flexible metal film-based bag filler is simple in structure, convenient to install, good in antistatic performance, and long in service life. Dust-laden gases of up to 600 DEG C can be treated by the bag filler. Meanwhile, the flexible metal film-based bag filler is good in permeability and the filtration accuracy of the bag filler can be up to 0.1 mu m. The filtration efficiency of the bag filler is up to 99.5%.
Description
Technical field
The present invention relates to a kind of sack cleaner, specifically a kind of flexible metal film sack cleaner.
Background technology
Sack cleaner is a kind of gas-solid separating device, and its core component is dedusting filtering bag.Dedusting filtering bag of the prior art adopts fiber to do filter membrane material, therefore also known as dust-removal cloth-bag.This sack cleaner made by dust-removal cloth-bag is called sack cleaner.Its maximum temperature used is at about 220 DEG C, if temperature is higher, dust-removal cloth-bag will burn out.But, the dusty gas produced in the industrial production such as chemical industry, oil, metallurgy, electric power, cement is mostly the high-temperature dusty gas that temperature is greater than 300 DEG C, the temperature of dusty gas is first dropped to less than 200 DEG C with regard to needs by the serviceability temperature meeting dust-removal cloth-bag, and this needs to increase temperature reduction technology flow process.In addition, its temperature of the dusty gas produced in industrial production often fluctuation range is comparatively large, even if consider control temperature when designing sack cleaner, also inevitable Yin Wendu is too high suddenly and cause the problem such as burning bag, dust-removal cloth-bag filtration inefficiencies.Contrary, when temperature too low (lower than 100 DEG C), in sack cleaner, local gas temperature sharply declines, and the moisture in gas is separated out, thus produces dew condensation phenomenon.Wherein, condensation be the temperature of dusty gas lower than dew-point temperature time, the phenomenon of dusty gas condensation liquid on the body surface contacted with it.Wherein dew-point temperature is also known as dew point, be meteorology middle finger under fixing air pressure, vaporous water contained in air reaches capacity and condenses into the temperature of being down to required for aqueous water.In addition, when the humidity of dusty gas is too high or too lowly also there will be dew condensation phenomenon.Condense and will cause sack cleaner appearance paste bag and filtration inefficiencies.
In addition, the filter membrane material due to sack cleaner is fibrous material, therefore when using, dust, easily in dust-removal cloth-bag surface aggregation electrostatic charge, not only affects dust removing effects, sack cleaner filtration resistance also can be caused significantly to increase.Along with the electrostatic charge of dust-removal cloth-bag surface aggregation increases, gas or dust also may be caused to fire, cause equipment damage or casualties.
Existing sack cleaner also needs the supporter using cage bone as filter membrane material, and cage bone adopts carbon steel wire or stainless steel wire to be raw material mostly.Cage bone not only can increase the weight of sack cleaner, also can increase the filtration resistance of sack cleaner, reduces filter efficiency.
When the flue gas using the large and easy hygroscopic dust of existing sack cleaner process viscosity or dew point higher than 200 DEG C, dust-removal cloth-bag easily produces condensation and blocked.
In addition, the wearing and tearing of dust-removal cloth-bag when filtering by dust of prior art are relatively large, and this will affect the service life of dust-removal cloth-bag.Along with the service time of sack cleaner is elongated, dust gathers more and more on dust-removal cloth-bag surface, and this has larger stretching action to filter membrane, and the hole of filter membrane can be made to change, thus filtration resistance, filter efficiency and filtering accuracy are affected.
Summary of the invention
It is simple that technical problem to be solved by this invention is to provide a kind of structure, and easy for installation, antistatic property is good, long service life, and energy treatment temperature is up to the flexible metal film sack cleaner of 600 DEG C of dusty gases.
Flexible metal of the present invention film sack cleaner, comprise casing, and the card to be connected respectively with cabinet wall and backstay, described casing is provided with air inlet and exhaust outlet, it is characterized in that in casing, being provided with the filter bag that filtration is flexible, porous metal film, the axial two ends of described filter bag are connected with backstay with card respectively and mutually support, and filter bag is provided with card junction the through hole be communicated with exhaust outlet.Filtration is that the filter bag of flexible, porous metal film carries out connection location near one end of air inlet by backstay, and the other end connects support by card.After dusty gas enters from air inlet, be blocked by dust during filter bag, the gas after filtration is discharged from exhaust outlet by the through hole of filter bag and card junction.The mechanical strength of described flexible, porous metal film is the twice of the fibrous material dust-removal cloth-bag of prior art, certain supporting role can be played, and do not need cage bone to support, comparing prior art not only can make filtration resistance reduce about 50%, the weight of about 15% can also be alleviated, save manufacturing cost.The wearing and tearing of dust to this flexible, porous metal film are less, improve the service life of filtration.In addition, empirical tests, filtration is the filter bag of flexible, porous metal film, its good permeability, and still can normally work under the hot environment of 600 DEG C; The dust-removal cloth-bag of hinge structure, also can prevent electrostatic charge from gathering on filter bag surface, and antistatic property is better, and its filtering accuracy can reach 0.1 μm, can reach the filter efficiency of 95.5% simultaneously.
Further, filter bag and card junction are provided with the first hermetically-sealed construction, are provided with the second hermetically-sealed construction between cabinet wall and card.The effect of the first hermetically-sealed construction and the second hermetically-sealed construction be by dusty gas with filter after gas-insulated.First hermetically-sealed construction and the second hermetically-sealed construction can be sealing ring, fluid sealant etc.
Further specifically, filtration is that the filter bag of flexible, porous metal film has two at least.The quantity of filter bag can be arranged as required.In casing size and shape one timing, in the open ended scope of casing, the quantity of filter bag is more, can process more dusty gas.
Except existing structure, a kind of structure is preferably that filter bag comprises filtration and location structure, and described location structure is located at the opening part of filtration, and on location structure, be provided with the through hole with open communication.Dusty gas is blocked by dust after flexible, porous metal film, and the gas after being filtered is discharged by the through hole of location structure.Filtration is except opening, and remainder all can play a role in filtering, and can ensure that it has good gas permeability to a certain extent.The location structure be connected with filtration is played a supporting role to filtration, is conducive to installing location simultaneously.In addition, filter bag also can adopt other structures such as suspended structure, clip etc. to carry out installation location to filtration.Described suspended structure can be hook or suspension ring etc.
Wherein, preferably structure is location structure is metal ring, and location structure and filtration are for welding.Be welded to connect at filtration opening part and flexible, porous metal film by metal ring, its structure is simply firm, with low cost.Metal ring is convenient to install location, can also play the effect of sealing with flexible, porous metal film after welding.
Preferably, described filtration comprises at least two group flexible, porous metal films, is welding between each group flexible, porous metal film.Because filtration has an opening, therefore can adopt two groups or more flexible, porous metal film such as, by being welded to connect the structure being formed and have inner chamber, the filtration of tubular, cuboid or other shape.Its good stability of the dimension after welding, Stability Analysis of Structures.
Furthermore, flexible, porous thickness of metal film is 0.5 ~ 1.5mm, has good flexibility.
In addition, described flexible, porous metal film is the thin slice that the metal polyporous material being matrix phase by the metal simple-substance of solid solution alloy, face-centred cubic structure or the metal simple-substance of body-centered cubic structure is formed.This flexible, porous metal film is that the metal being matrix phase by the metal simple-substance of the metal simple-substance of solid solution alloy, face-centred cubic structure or body-centered cubic structure is formed on material composition, thus ensures the flexibility of this flexible, porous metal film.The metal simple-substance of described solid solution alloy, face-centred cubic structure or the metal simple-substance of body-centered cubic structure are existing metal structure or material.
Further, the average pore size of described thin slice is 0.05 ~ 100 μm, porosity is 30 ~ 70%.The metal material forming this thin slice is preferably porous material, and its Pore Characterization is average pore size is 0.05 ~ 100 μm, and porosity is 30 ~ 70%, and such flake structure makes flexible, porous metal film can meet isolated by filtration requirement to dusty gas.Learn after tested, filtration is that the filter bag of flexible, porous metal film can reach the filter efficiency of more than 99.5% and the filtering accuracy of 0.1 μm while the better gas permeability of maintenance.
Above-mentioned filtration is that the filter bag of flexible, porous metal film can be prepared by the following method, 1) metal dust is made flexible, porous metal film by sintering; 2) flexible, porous metal film is cut into required rectangle and circle shape; 3) along rectangular flexible porous metal film while be rolled into tubular, the neat seam welding in edge; 4) one end of the flexible, porous metal film of tubular is welded with circular flexible, porous metal film form filtration; 5) openend of filtration is welded with location structure.This preparation method is simple and convenient, with low cost.
Further, be provided with back-blowing device near card place, back-blowing device has the nozzle corresponding with through hole, and the blowback pipeline be connected with nozzle is communicated with purge gas bag by pulse valve, and bottom half is also provided with ash-discharging device.To be dropped in the ash-discharging device of bottom half by the dust part gravitate that filter bag is tackled, another part be attached on filter bag.The dust increasing number of filter bag surface attachment, filtration resistance will rise, when reaching certain numerical value, pulse valve near card place back-blowing device is opened, purge gas in purge gas bag is entered by pulse valve in the blowback pipeline be connected with pulse valve, then is blown out by the nozzle be connected with blowback pipeline, carries out blowback by the through hole on the filter bag of correspondence to filter bag, the dust that filter bag gathers comes off rapidly under the effect of purge gas, finally enters into ash-discharging device.Purge gas is herein compressed nitrogen, and ash-discharging device can by existing techniques in realizing.Back-blowing device is that the use of filter bag long-time stable provides guarantee, makes it can not cause filtration inefficiencies because filtration resistance is excessive.
Flexible metal of the present invention film sack cleaner, its structure is simple, and easy for installation, antistatic property is good, long service life, can the dusty gas for the treatment of temperature up to 600 DEG C.Its good permeability, filtering accuracy can reach 0.1 μm, and filter efficiency can reach more than 99.5%.
Below in conjunction with the detailed description of the invention of embodiment, foregoing of the present invention is described in further detail again.But this should be interpreted as that the scope of the above-mentioned theme of the present invention is only limitted to following example.Without departing from the idea case in the present invention described above, the various replacement made according to ordinary skill knowledge and customary means or change, all should comprise within the scope of the invention.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of flexible metal of the present invention film sack cleaner.
A kind of structural representation of Fig. 2 to be filtration be filter bag of flexible, porous metal film.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the manufacturing process figure of Fig. 2.
Detailed description of the invention
Flexible metal film sack cleaner as shown in Figure 1, comprise casing 12, and the card 4 to be connected respectively with casing 12 inwall and backstay 5, described casing 12 is provided with air inlet 1 and exhaust outlet 2, it is characterized in that in casing 12, being provided with the filter bag 3 that filtration is flexible, porous metal film, the axial two ends of described filter bag 3 are connected with backstay 5 with card 4 respectively and mutually support, and filter bag 3 is provided with card 4 junction the through hole 6 be communicated with exhaust outlet 2.Have a positioning rod 5 to be connected on casing 12 inwall above air inlet 1, the card 4 near exhaust outlet 2 is connected with casing 12 inwall and is sealed by the second hermetically-sealed construction 41.Second hermetically-sealed construction 41 is fluid sealant or sealing ring herein.The location structure 32 of plural filter bag 3 is arranged on the corresponding position of card 4, location structure 32 is metal ring herein.Located by backstay 5 bottom the flexible, porous metal film of filter bag 3.Be provided with the first hermetically-sealed construction 9 at metal ring and card 4 junction, this first hermetically-sealed construction 9 is sealing ring.The nozzle 71 of corresponding back-blowing device above metal ring, after dusty gas enters from air inlet 1, be blocked by dust after the flexible, porous metal film of filter bag 3, the gas after filtration is by discharging from exhaust outlet 2 after through hole 6.Dropped in the ash-discharging device 8 bottom casing 12 by the dust part gravitate that flexible, porous metal film is tackled, a part is attached on flexible, porous metal film.Along with the dust that flexible, porous metal film adheres to increases, filtration resistance will rise, when reaching certain numerical value, pulse valve 73 near card 4 place back-blowing device will be opened, compressed nitrogen in purge gas bag 74 enters into the blowback pipeline 72 be connected with pulse valve 73 by pulse valve 73, nozzle 71 again by being connected with blowback pipeline 72 blows out, blowback is carried out by through hole 6 pairs of filter bags 3 of filter bag 3, accumulate in the dust on flexible, porous metal film to come off rapidly under the effect of purge gas, finally enter into ash-discharging device 8.After the dust gathered reaches some, the unloading valve 81 on ash-discharging device 8 is opened and is carried out unloading ash, and this unloading valve 81 is flap valve, and flap valve can by existing techniques in realizing.
Filter bag 3 as shown in Figures 2 and 3, comprises the filtration be made up of flexible, porous metal film, and filtration is connected with location structure 32 by opening 311, and location structure 32 is provided with the through hole 6 be communicated with opening 311.Weld by two groups of flexible, porous metal films the filtration formed and have opening 311, location structure 32 welds with flexible, porous metal film at opening 311 place, and this location structure 32 is metal ring, plays a part to support and install location.Dusty gas is by being filtered after filtration, and the gas after filtration is by discharging with the through hole 6 of location structure 32.This flexible, porous metal film is the thin slice that the metal polyporous material being matrix phase by the metal simple-substance of existing solid solution alloy, face-centred cubic structure or the metal simple-substance of body-centered cubic structure is formed, the average pore size of described thin slice is 0.05 ~ 100 μm, porosity is 30 ~ 70%, thickness is 0.5 ~ 1.5mm, can reach the filter efficiency of more than 99.5% and the filtering accuracy of 0.1 μm while the better gas permeability of maintenance, it is better flexible.
It is that the similar approach of the flexible, porous metal forming recorded in the Chinese patent application of 201510153116.3 makes or adopt other similar approach existing to make that this flexible, porous metal film can adopt with application number.
Filtration is as shown in Figure 4 the preparation method of the filter bag 3 of flexible, porous metal film, first metal dust is made flexible, porous metal film by sintering, again flexible, porous metal film is cut into required rectangle and circle shape, then along rectangular flexible porous metal film while be rolled into tubular, the neat seam welding in edge, then one end of the flexible, porous metal film of tubular and circular flexible, porous metal film are welded to connect formation filtration, the other end of the flexible, porous metal film of tubular is as the opening 311 of filtration, finally opening 311 place of filtration is welded with the location structure 32 with through hole 6, location structure 32 is herein metal ring.
Claims (10)
1. flexible metal film sack cleaner, comprise casing (12), and the card (4) to be connected respectively with casing (12) inwall and backstay (5), described casing (12) is provided with air inlet (1) and exhaust outlet (2), it is characterized in that in casing (12), being provided with the filter bag (3) that filtration is flexible, porous metal film, the axial two ends of described filter bag (3) are connected with card (4) with backstay (5) and mutually support respectively, filter bag (3) and card (4) junction are provided with the through hole (6) be communicated with exhaust outlet (2).
2. flexible metal as claimed in claim 1 film sack cleaner, it is characterized in that filter bag (3) and card (4) junction are provided with the first hermetically-sealed construction (9), between casing (12) inwall and card (4), be provided with the second hermetically-sealed construction (41).
3. flexible metal as claimed in claim 2 film sack cleaner, is characterized in that described filter bag (3) has two at least.
4. flexible metal as claimed in claim 1 film sack cleaner, it is characterized in that described filter bag (3) comprises filtration and location structure (32), described location structure (32) is located at opening (311) place of filtration, and on location structure (32), be provided with the through hole (6) be communicated with opening (311).
5. flexible metal as claimed in claim 4 film sack cleaner, it is characterized in that location structure (32) is metal ring, location structure (32) and filtration are for welding.
6. flexible metal as claimed in claim 1 film sack cleaner, is characterized in that described filtration comprises at least two group flexible, porous metal films, is welding between each group flexible, porous metal film.
7. flexible metal as claimed in claim 1 film sack cleaner, is characterized in that the thickness of flexible, porous metal film is 0.5 ~ 1.5mm.
8. the flexible metal film sack cleaner as described in one of claim 1 to 7, is characterized in that described flexible, porous metal film is the thin slice that the metal polyporous material being matrix phase by the metal simple-substance of solid solution alloy, face-centred cubic structure or the metal simple-substance of body-centered cubic structure is formed.
9. flexible metal as claimed in claim 8 film sack cleaner, is characterized in that the average pore size of described thin slice is 0.05 ~ 100 μm, porosity is 30 ~ 70%.
10. the flexible metal film sack cleaner as described in one of claim 1 to 7, it is characterized in that being provided with back-blowing device near card (4) place, back-blowing device has the nozzle (71) corresponding with through hole (6), the blowback pipeline (72) be connected with nozzle (71) is communicated with purge gas bag (74) by pulse valve (73), and casing (12) bottom is also provided with ash-discharging device (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183910.2A CN104826414B (en) | 2015-04-17 | 2015-04-17 | Flexible metal film sack cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183910.2A CN104826414B (en) | 2015-04-17 | 2015-04-17 | Flexible metal film sack cleaner |
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| CN104826414A true CN104826414A (en) | 2015-08-12 |
| CN104826414B CN104826414B (en) | 2018-02-16 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105749679A (en) * | 2016-03-23 | 2016-07-13 | 凯天环保科技股份有限公司 | High-temperature smoke dust removal method and system |
| CN106139760A (en) * | 2016-08-25 | 2016-11-23 | 合肥超赢工业设计有限公司 | A kind of sparkproof sack cleaner |
| CN108465304A (en) * | 2018-03-26 | 2018-08-31 | 刘璐 | A kind of new and effective deduster |
| CN108854298A (en) * | 2018-08-02 | 2018-11-23 | 安徽鑫昆净化设备有限公司 | A kind of closed cloth-bag type low pressure ash cleaning and dust removing device |
| CN109550330A (en) * | 2019-01-18 | 2019-04-02 | 重庆毕威环保工程设备有限公司 | A kind of superhigh temperature minimum discharge pulse dust collector |
| CN109663422A (en) * | 2019-02-28 | 2019-04-23 | 中材海外工程有限公司 | Intelligent bag type dust collecting system |
| CN112246031A (en) * | 2020-11-11 | 2021-01-22 | 江苏鑫州耐磨科技有限公司 | Regional air purification device |
| CN112774391A (en) * | 2020-12-31 | 2021-05-11 | 成都易态科技有限公司 | Heat exchange dust removing device |
| CN113022120A (en) * | 2021-03-03 | 2021-06-25 | 绍兴寿春针纺织有限公司 | PUR hot melt adhesive gilding press |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105749679A (en) * | 2016-03-23 | 2016-07-13 | 凯天环保科技股份有限公司 | High-temperature smoke dust removal method and system |
| CN106139760A (en) * | 2016-08-25 | 2016-11-23 | 合肥超赢工业设计有限公司 | A kind of sparkproof sack cleaner |
| CN108465304A (en) * | 2018-03-26 | 2018-08-31 | 刘璐 | A kind of new and effective deduster |
| CN108465304B (en) * | 2018-03-26 | 2021-04-02 | 新昌县集禾汇线束有限公司 | Novel high-efficient dust remover |
| CN108854298A (en) * | 2018-08-02 | 2018-11-23 | 安徽鑫昆净化设备有限公司 | A kind of closed cloth-bag type low pressure ash cleaning and dust removing device |
| CN109550330A (en) * | 2019-01-18 | 2019-04-02 | 重庆毕威环保工程设备有限公司 | A kind of superhigh temperature minimum discharge pulse dust collector |
| CN109663422A (en) * | 2019-02-28 | 2019-04-23 | 中材海外工程有限公司 | Intelligent bag type dust collecting system |
| CN109663422B (en) * | 2019-02-28 | 2021-02-02 | 中材海外工程有限公司 | Intelligent bag type dust collecting system |
| CN112246031A (en) * | 2020-11-11 | 2021-01-22 | 江苏鑫州耐磨科技有限公司 | Regional air purification device |
| CN112774391A (en) * | 2020-12-31 | 2021-05-11 | 成都易态科技有限公司 | Heat exchange dust removing device |
| CN113022120A (en) * | 2021-03-03 | 2021-06-25 | 绍兴寿春针纺织有限公司 | PUR hot melt adhesive gilding press |
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Denomination of invention: Flexible metal film bag filter Effective date of registration: 20230131 Granted publication date: 20180216 Pledgee: China Construction Bank Corporation Chengdu No.1 Sub-branch Pledgor: INTERMET TECHNOLOGIES CHENGDU Co.,Ltd. Registration number: Y2023510000035 |
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