CN105944424B - Taper sintered plate available for filtering flow and preparation method thereof - Google Patents
Taper sintered plate available for filtering flow and preparation method thereof Download PDFInfo
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- CN105944424B CN105944424B CN201610476729.5A CN201610476729A CN105944424B CN 105944424 B CN105944424 B CN 105944424B CN 201610476729 A CN201610476729 A CN 201610476729A CN 105944424 B CN105944424 B CN 105944424B
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- 238000001914 filtration Methods 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 20
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims description 9
- 239000008187 granular material Substances 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 239000000843 powder Substances 0.000 abstract description 17
- 239000002245 particle Substances 0.000 abstract description 15
- 238000010438 heat treatment Methods 0.000 abstract description 14
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 abstract description 6
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract 1
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- 238000007789 sealing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
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- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
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- 150000002367 halogens Chemical group 0.000 description 1
- TVHALOSDPLTTSR-UHFFFAOYSA-H hexasodium;[oxido-[oxido(phosphonatooxy)phosphoryl]oxyphosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O TVHALOSDPLTTSR-UHFFFAOYSA-H 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/012—Making filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/016—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements with corrugated, folded or wound filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- 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
- B01D46/0001—Making filtering elements
-
- 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
- B01D46/66—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2275/50—Stabilised filter material, stabilised by, e.g. structuring, calendering
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Abstract
The present invention relates to a kind of taper sintered plate available for filtering flow and preparation method thereof, the taper sintered plate has the cavity that section is in cone shape, and two working faces of cone-shaped inner chamber body are corrugated, to increase effective filtration area；The working face of cone-shaped inner chamber body has identical taper with outer working face；The entrance of cone-shaped inner chamber body is big end, and bottom is small end；Installation site is in reverse taper shape to taper sintered plate in the operating condition.The production method includes：Using ultrahigh molecular weight polyethylene powder；The particle powder of selection is added into section in the mould of cone shape；Mould is put into heating heating, insulation in heating furnace, and the modeling in mould therebetween burns particle powder and starts to melt；Mould is taken out out of heating furnace, and imposes operating pressure, is cooled down, taper sintered plate product is taken out in the demoulding.For the present invention using with tapered sintered plate filter element, its taper can make liquid, gas equal fluid reach more preferable cleaning performance at work.
Description
Technical field
The present invention relates to filtering material, is related to sintered plate filter element, more particularly to a kind of band available for filtering flow
Tapered sintered plate and preparation method thereof.
Background technology
Sintered plate formula deduster is one of more advanced cleaner in the world at present, and wherein sintered plate is the core of deduster
Heart element, the processing technology thereof of sintered plate is to select the modeling of certain particle diameter to burn powder particle to insert in mould, in certain temperature
Under the control of degree and time, the plastic products of sinter molding, during heat-agglomerating, modeling sticks together between burning particle, not
The gap section to stick together forms small perforation aperture.Sintered plate at work, when the liquid containing impurity, air-flow body exist
Under certain pressure by sintered plate outer surface by when, clean fluid is by the micropore that penetrates through by the way that and impurity is then delayed at
Working face top layer outside micropore；When impurity face surface accumulate to a certain extent, hinder and influence fluid by when, palpus
Surface accumulation thing is purged, the high-pressure fluid that generally use is more than positive operating pressure makes table from moment injection is reversed
Face impurity comes off, so as to reach the effect of backwash, is re-circulated into the dedusting work of next round.
The sintered plate commercially used at present is designed using multiple operation face（As shown in Figure 1 to Figure 3）, two is parallel
It is hollow cavity between working face.Again because considering structural strength, in design, inner cavity vertical length adds some reinforcing ribs,
Therefore inner cavity runner forms some extremely narrow and elongated passages.
Structure design so, many defects of recoil cleaning tape and problem when being worked normally to sintered plate, according to existing
Some service conditions, which have reflected, there are following some problem.
1st, when back flushing gas reach sintered plate cavity bottom, the pressure loss is serious, can not normally to inner cavity distal bottom into
Row recoil cleaning, therefore back flushing gas pressure must be improved up to 0.4~0.6MPa, and positive operating pressure only needs 3kPa, both it
Between pressure differential it is excessively greatly different（More than hundred times of difference）.
2nd, to reach the backwash effect of distal bottom, therefore the pressure of backwash gas can only be often improved, moment
Gases at high pressure impact causes the outside dilatancy in inner cavity top, and after pulse gas is cut off, expansion position recoils to original position again, such as
This high-frequency dilatancy repeatedly causes the rupture in work filter layer face, and causes sintered plate to scrap.
3rd, sintered plate upper end entrance and bag filter tubesheet junction installation gasket, to ensure sealing effect, gasket
Scene uses semi-elastic body rubber, and gasket is often outwards heaved and deformed in kickback pressure and under causing vibrational state,
Form leakage and cause shutdown cone to repair.
In view of this, seeking a kind of improved sintered plate available for filtering flow becomes the pursuit of the field technology personnel
Target.
The content of the invention
The task of the present invention is providing a kind of taper sintered plate available for filtering flow and preparation method thereof, by with
The sintered plate filter element of taper, using the filtration and separation techniques available for particles contained impurity in liquids and gases, can make liquid,
Gas equal fluid is at work especially in the cleaning process that recoils, and sintered plate distal end is to be incremented by pressure at small end bottom, to reach
More preferable cleaning performance, solves the problems of above-mentioned prior art.
The technical solution of the present invention is as follows：
A kind of taper sintered plate available for filtering flow, the taper sintered plate have the sky that section is in cone shape
Chamber, cone-shaped inner chamber body have two working faces, and two working faces are corrugated, to increase effective filtration area；
The working face of the cone-shaped inner chamber body has identical taper with outer working face, and range of taper is controlled in 6o~60
Between o, cone cavity as filter medium runner at the same time as backflushing medium clean runner；
The entrance of the cone-shaped inner chamber body is big end, and bottom is small end, and the volume of inner chamber body big end entrance is to small
The volume of end bottom tapers into；Installation site is in reverse taper shape to the taper sintered plate in the operating condition, i.e., small end downward,
It is incremented by pressure at small end bottom, setting cone taper to make liquid, gaseous fluid, larger granule foreign can be weighed voluntarily at work
Power is fallen, and adsorbs come off also easy and convenient in the case where the impurity on surface is acted in recoil；
The working face of the taper sintered plate is the full perforation micro porous filtration layer for having thickness, and the thickness of the filter layer is 2
~8mm.
The taper of the taper sintered plate is advisable using 15o, i.e. the angle of working face and center line is 7.5o.
The corrugated working face of the taper sintered plate is computed, and corrugated developed area is 2.5 times of plane, is increased
Filtering surface product is to reduce the making of deduster equipment and operating cost.
The thickness of the Coal Face Passing Through filtering layer of the taper sintered plate uses 3mm.
The production method of the taper sintered plate available for filtering flow, it includes following moulding process step：
A, using the ultrahigh molecular weight polyethylene powder of average molecular weight 200~7,000,000, through screening, 30~100 mesh are selected
Particle powder is stand-by；
B, the particle powder of selection is added into section in the mould of cone shape；
C, the mould after feeding is put into heating in heating furnace and is heated to 170 DEG C~200 DEG C, and extremely predetermined soaking time,
The modeling in mould burns particle powder and starts to melt therebetween；
D, mould is taken out out of heating furnace, and imposes operating pressure, be cooled to less than 80 DEG C using natural wind, the demoulding takes
Go out taper sintered plate product.
The ultrahigh molecular weight polyethylene powder of average molecular weight 4,000,000 is selected in the processing step A.
Select 50~80 mesh particle powders stand-by in the processing step A.
Mould, which is put into heating in heating furnace and is heated to 180 DEG C, in the processing step C starts to keep the temperature.
A kind of taper sintered plate available for filtering flow by the present invention and preparation method thereof, using with tapered modeling
Plate filter element is burnt, its working face carries certain taper with inner chamber body, its taper can make liquid, gas equal fluid at work,
Especially in the cleaning process that recoils, sintered plate distal end is to be incremented by pressure at small end bottom, to reach more preferable cleaning performance.
Taper sintered plate available for filtering flow of the present invention and preparation method thereof has the characteristics that：
1st, two working face of taper sintered plate of the invention has certain taper.
2nd, there is cavity in the cone of two working faces, cavity also forms the taper identical with outer working face, and cavity was used as
The runner of filter medium, also serves as the runner of backflushing medium cleaning.
3rd, since inner cavity has a taper, cavity entrance is big end, and bottom is small end, therefore the appearance of cavity big end entrance
Product to the volume of small end bottom tapers into, according to Bernoulli's theorem, during recoil cleaning since the volume of small end bottom diminishes and
Pressure increases, and when carrying out model test with clear water recoil cleaning, the supercharging effect of liquid is more notable, therefore with tapered modeling
Plate is burnt when recoiling cleaning, and overall cleaning effect becomes apparent.
4th, due to taper sintered plate inner cavity reducing effect, reduce the pressure that recoil is cleaned, also according to model test,
Its recoil cleaning pressure is reduced to 0.25MPa by former 0.40MPa in gas phase experiment, can reach similar effect.
5th, the installation site of taper sintered plate in the operating condition is in reverse taper shape, i.e. small end is downward, larger at work
Granule foreign can voluntarily gravity fall, and adsorb the impurity on surface under recoil effect, can also be easier to conveniently come off.
6th, the range of taper of taper sintered plate of the invention is controlled between 6o~60o, and generally use 15o is advisable, that is, works
The angle of face and center line is 7.5o ideal.
7th, taper sintered plate working face of the invention uses corrugated design, and corrugated design can increase effective filtration area,
Be computed 2.5 times that corrugated developed area is plane, increase filter area can reduce deduster equipment making and operation into
This.
8th, the working face of taper sintered plate is that have certain thickness full perforation micro porous filtration layer, the thickness one of the filter layer
As using 2~8mm or so, too thin insufficient strength, too thick drag losses is big, generally using 3mm or so.In terms of air fluid,
Its drag losses is similar to the cloth bag drag losses of bag filter in 800~1200Kpa.In terms of aqueous fluid, crossflow velocity leads to
Often it is 5~7m/s or so, permeation flux is up to 390L/m2 ﹒H, transmembrane pressure 0.15MPa, with the ceramic filter membrane generally used
Piece is very close.
Brief description of the drawings
Fig. 1 is the front view of sintered plate currently used in the market, it is shown that multiple operation face.
Fig. 2 is the left view of sintered plate as shown in Figure 1.
Fig. 3 is the bottom view of sintered plate as shown in Figure 1.
Fig. 4 is a kind of structure for amplifying signal of the ripple working face of taper sintered plate available for filtering flow of the present invention
Figure.
Fig. 5 is a kind of front view of taper sintered plate available for filtering flow of the present invention.
Fig. 6 is the left view of taper sintered plate as shown in Figure 5.
Fig. 7 is the bottom view of taper sintered plate as shown in Figure 5.
Reference numeral：
1 is the ripple working face of taper sintered plate, and 2 be filter layer, and 3 be sealing surface, and 4 be small end bottom, 5 for big end into
Mouthful.
Embodiment
Elaborate with reference to the accompanying drawings and examples to the present invention.
Referring to Fig. 4 to Fig. 7, the present invention provides a kind of taper sintered plate available for filtering flow, the taper sintered plate master
To be made of ripple working face 1, filter layer 2, sealing surface 3, small end bottom 4, big end import 5.
Taper sintered plate has the cavity that section is in cone shape, and cone-shaped inner chamber body has two working faces 1, two working faces 1
It is corrugated, effective filtration area can be increased.The contour structures of taper sintered plate and inner cavity are respectively provided with certain taper.
The working face 1 of cone-shaped inner chamber body has identical taper with outer working face, its range of taper is controlled in 6o~60o
Between, generally use 15o is advisable, i.e. the angle of working face and center line is 7.5o ideal.Cone cavity is situated between as filtering
The runner of matter, while as the runner of backflushing medium cleaning.
The entrance of cone-shaped inner chamber body is big end, is big end import 5, and bottom is small end, is small end bottom 4, in Fig. 6
Shown, the volume of volume to small end bottom 4 at inner chamber body big end import 5 tapers into.According to Bernoulli's theorem, recoil cleaning
When due to the volume of small end bottom 4 diminishes and pressure increase, with clear water recoil clean when, the supercharging effect of liquid is more notable,
Therefore with tapered sintered plate when recoiling cleaning, overall cleaning effect becomes apparent.
Installation site is in reverse taper shape to taper sintered plate in the operating condition, i.e. small end downward, is incremented by small end bottom 4
Pressure, sets cone taper, make liquid, gaseous fluid at work larger granule foreign can voluntarily gravity fall, and adsorb and exist
The impurity on surface can also be easier to conveniently come off under recoil effect.
As shown in figure 4, the working face 1 of taper sintered plate is the full perforation micro porous filtration layer 2 for having thickness, the filter layer 2
Thickness be generally 2~8mm, too thin insufficient strength, too thick drag losses is big, therefore the Coal Face Passing Through filtering layer 2 is preferentially selected
The thickness of 3mm or so.
The corrugated working face of taper sintered plate is computed, and corrugated developed area is 2.5 times of plane, increases filtering surface
Product can reduce making and the operating cost of deduster equipment.
The present invention also provides a kind of production method of the taper sintered plate available for filtering flow, it includes following shaping work
Skill step：
A, using the ultrahigh molecular weight polyethylene powder of average molecular weight 200~7,000,000, average molecular weight is generally selected
4000000 ultrahigh molecular weight polyethylene powder.Through screening, select 30~100 mesh particle powders stand-by, generally select 50~80 mesh
Particle powder is stand-by.
B, the particle powder of selection is added into section in the mould of cone shape.
It is one of key factor in sintered plate manufacturing process that mold design, which makes, the requirement to mould be can produce needed for
Size, structure, and can meet in physical property the taper sintered plate product of requirement.
The selection requirements of material are molded to go out to have the plastic construction product of full perforation micropore, and can meet intensity
With the corrosion-resistant plastic powders particle for waiting physical and chemical index requirement.
It is preferred that ultra-high molecular weight polyethylene, wherein also including polyolefin, polyvinyl chloride polyester, polyethers halide, polyethylene
It is alcohol, polyvinyl sulfuric acid salt, Quadrafos, polyamine, polyamide, polyimides, polysulfones, makrolon, polycarbodiimide, poly-
Ether, polyester, polyarylphosphorus oxide, melamine resin, ureaformaldehyde, ethyl vinyl acetate vinyl ester copolymers, copolymer
With the method for block interpolymers, and combinations thereof.The change of above-mentioned material and other useful polymer includes group such as
Hydroxyl, halogen substitution, reduce alkyl, lower alkoxy etc..Other potential suitable materials include polymer such as polystyrene and
Acrylonitrile-butadiene-styrene copolymer and other amorphous states or the structure of amorphous polymer.
C, the mould after feeding is put into heating in heating furnace and is heated to 170 DEG C~200 DEG C, and extremely predetermined soaking time,
The modeling in mould burns particle powder and starts to melt therebetween.In practical operation, the mould after charging can be put into heating furnace
Heating is heated to 180 DEG C and starts to keep the temperature.
D, mould is taken out out of heating furnace, and imposes appropriate pressure, be cooled to less than 80 DEG C using natural wind, the demoulding takes
Go out taper sintered plate product.
In conclusion by taper sintered plate available for filtering flow of the invention and preparation method thereof, using with cone
The sintered plate filter element of degree, its working face carry certain taper with inner chamber body, its taper can make liquid, gas equal fluid in work
When making, especially in the cleaning process that recoils, sintered plate distal end is to be incremented by pressure at small end bottom, to reach preferably cleaning effect
Fruit.
Certainly, those skilled in the art in the art are it should be appreciated that above-described embodiment is intended merely to illustrate this hair
It is bright, and be not used as limitation of the invention, as long as in the spirit of the present invention, change to above-described embodiment,
Modification etc. will all fall within the scope of the claims.
Claims (2)
- A kind of 1. taper sintered plate available for filtering flow, it is characterised in that：It is in cone that the taper sintered plate, which has section, The cavity of shape, cone-shaped inner chamber body have two working faces, and two working faces are corrugated, to increase effective filtration area；The working face of the cone-shaped inner chamber body and outer working face have an identical taper, range of taper control 6o~60o it Between, cone cavity as filter medium runner at the same time as backflushing medium clean runner；The entrance of the cone-shaped inner chamber body is big end, and bottom is small end, the volume of inner chamber body big end entrance to small end bottom The volume in portion tapers into；Installation site is in reverse taper shape to the taper sintered plate in the operating condition, i.e., small end downward, small Hold and be incremented by pressure at bottom, setting cone taper to make liquid, gaseous fluid, larger granule foreign can voluntarily gravity weight at work Fall, and adsorb come off also easy and convenient in the case where the impurity on surface is acted in recoil；The working face of the taper sintered plate is the full perforation micro porous filtration layer for having thickness, the thickness of the filter layer for 2~ 8mm；Using with tapered sintered plate filter element, its working face and inner chamber body band are tapered, its taper can make liquid, gas phase stream At work, sintered plate distal end is to be incremented by pressure at small end bottom to body, to reach more preferable cleaning performance.
- 2. the taper sintered plate described in accordance with the claim 1 available for filtering flow, it is characterised in that：The taper sintered plate Corrugated working face be computed, corrugated developed area is 2.5 times of plane, and increase filter area is to reduce deduster equipment Making and operating cost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610476729.5A CN105944424B (en) | 2016-06-27 | 2016-06-27 | Taper sintered plate available for filtering flow and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610476729.5A CN105944424B (en) | 2016-06-27 | 2016-06-27 | Taper sintered plate available for filtering flow and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105944424A CN105944424A (en) | 2016-09-21 |
| CN105944424B true CN105944424B (en) | 2018-05-15 |
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| CN111632425A (en) * | 2020-06-10 | 2020-09-08 | 国家能源集团宁夏煤业有限责任公司 | Automatic backwashing equipment and backwashing method for filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5466853B2 (en) * | 2008-12-25 | 2014-04-09 | 日本無機株式会社 | Pleated air filter pack and air filter using the same |
| CN104226041B (en) * | 2014-09-23 | 2016-08-24 | 上海超高环保科技股份有限公司 | Use ripple pipe filter of sintered plate pipe rolling technique molding and preparation method thereof |
| CN105169840A (en) * | 2015-09-11 | 2015-12-23 | 无锡零界净化设备有限公司 | High efficiency filter |
| CN205730510U (en) * | 2016-06-27 | 2016-11-30 | 上海超高环保科技股份有限公司 | Can be used for the tapering sintered plate of filtering flow |
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2016
- 2016-06-27 CN CN201610476729.5A patent/CN105944424B/en active Active
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Application publication date: 20160921 Assignee: Jiangsu Kelin environmental protection equipment Co.,Ltd. Assignor: SHANGHAI SUPERHIGH ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Contract record no.: X2021310000038 Denomination of invention: Taper plastic burning plate for fluid filtration and its manufacturing method Granted publication date: 20180515 License type: Common License Record date: 20211019 |
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Application publication date: 20160921 Assignee: DANDONG TIANHAO AIR TECH FILTER CO.,LTD. Assignor: SHANGHAI SUPERHIGH ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Contract record no.: X2023310000162 Denomination of invention: Conical plastic firing plate and its production method for fluid filtration Granted publication date: 20180515 License type: Common License Record date: 20231117 |
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