CN102743934A - Shaping filter - Google Patents
Shaping filter Download PDFInfo
- Publication number
- CN102743934A CN102743934A CN2011103203112A CN201110320311A CN102743934A CN 102743934 A CN102743934 A CN 102743934A CN 2011103203112 A CN2011103203112 A CN 2011103203112A CN 201110320311 A CN201110320311 A CN 201110320311A CN 102743934 A CN102743934 A CN 102743934A
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- China
- Prior art keywords
- filter cloth
- filter
- cloth
- crimp shape
- shield
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
- B01D46/523—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material with means for maintaining spacing between the pleats or folds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0618—Non-woven
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Filtering Materials (AREA)
Abstract
The invention relates to a shaping filter, aiming to keep in a wrinkled state a piece of weaving cotton cloth or filter cloth made of non-woven fabrics without resin treatment. The filter cloth (10) is prepared by needle-punched non-woven fabrics or fabric polymer. The cylindrical filter cloth has a wrinkled shape. Cloth liners (12) are configured on convex and concave portions (fold-back portions) of the wrinkled shape in an abutting manner from the outer side, and meanwhile opposite layers of the filter cloth (10) are stitched together via sewing threads. The cloth liners (12) on a stitched portion (16-1, 16-2) and a stitched portion (16-1, 16-2) are substantially extended along the wrinkled shape to the full length, thereby maintaining the wrinkled shape of the filter cloth (10).
Description
Technical field
The present invention relates to the shaping filter that a kind of dust collect plant is used.
Background technology
In dust collect plant, for improving the what is called shaping filter that dust catching efficiency forms filter cloth crimp shape etc.Through foldable structures such as formation crimp shape, surface area is increased relatively, thereby can correspondingly increase dust catching efficiency.On the other hand, when the filter material of low rigidity such as using needle punched non-woven fabrics and weave cotton cloth, because raw material are softer, therefore like this words can't be kept crimp shape.For keeping crimp shape, be to make filter material be dipped into thermosetting resin under many circumstances in the past, and be shaped crimp shape is fixed through under heating, carrying out fold.The heat of immersion thermosetting resin is disadvantageous on this aspect of filter capacity.On the other hand; In order to keep crimp shape, proposed a kind of return portion (protuberance and recess) in crimp shape and sentenced near the mode of return portion the relative portion of filter cloth is sewed up the shaping filter (patent documentation 1, patent documentation 2) that forms along the filter cloth length direction.
Patent documentation 1: japanese patent laid-open 5-277316 communique
Patent documentation 2: Japanese Patent Laid is opened the 2009-011989 communique
Use of the prior art mainly through the situation of making the filter cloth (bag filter) that the filter cloth of keeping crimp shape uses as dust collect plant under, on durability, have problems.That is in the filter cloth that dust collect plant is used, be that the guard ring of the cylindrical form through being used to keep filter cloth in inboard configuration is kept cylindrical form.In the filter cloth that dust collect plant is used,, carry out impulse jet, air blast or machinery termly repeatedly from the inboard and sweep (involving vibrations mode) for filter cloth is cleaned.When mainly when making the structure of guaranteeing crimp shape; Because the rigidity of pleated portions is with a little less than the process of resin article are compared; Therefore; Because of utilizing impulse jet to sweep operation repeatedly and be easy to generate distortion making guard ring, in the process of cleaning repeatedly, lose crimp shape gradually, thereby possibly occur the filter efficiency variation or the situation of filter cloth damage in early days in the return portion (recess in the guard ring shape) of the inboard of filter cloth.In addition; Because the return portion (protuberance in the crimp shape) in the filter cloth outside is located directly not contact with guard ring; Therefore in the outer part filter cloth damage not with the filter cloth in the inner part of guard ring collision so early; But worry can because of impulse jet from the line eye blow out, because of warpage repeatedly produces distortion, under worst case, can produce damage because of tired.
Summary of the invention
The present invention is based on the problems referred to above and do; Its purpose be to obtain a kind of mainly do not rely on process of resin but through make keep crimp shape dust collect plant with shaping filter (bag filter); Wherein, Even if sweep operation for the impulse jet etc. that cleaning is carried out repeatedly, also can keep crimp shape for a long time, and can prevent the earlier damage of return portion.
Dust collect plant of the present invention with the shaping filter in; In order to keep crimp shape; At at least a portion return portion place the relative portion of filter cloth is sewed up, at least a portion return portion place in having carried out the return portion that sews up, the state that disposes shield with butt sews up.Comparatively it is desirable to, shield extends on the essence total length of the length direction of crimp shape portion, and integrated through sewing up.In addition, shield ability butt is configured in whole return portion or a part of return portion of filter cloth inboard (near guard ring one side).Shield can also butt be configured in whole return portion or a part of return portion in the filter cloth outside (away from guard ring one side).According to different situations, shield also can a butt be configured in the return portion in the filter cloth outside (away from guard ring one side).
Because the making of relative portion in the return portion of crimp shape is to carry out through the shield of return portion is sewed up; Therefore the return portion of crimp shape has obtained reinforcement; To the impulse jet repeatedly that carries out for cleaning, can keep crimp shape (raising cleaning efficiency) and life-saving.In addition, through with shield and inboard whole return portion or a part of return portion butt of filter cloth,, can protect crimp shape effectively to the collision impact that brings because of impulse jet.
Description of drawings
Fig. 1 is the longitudinal section of filter cloth structure that under deployed condition, schematically illustrates the shaping filter of an embodiment of the present invention.
Fig. 2 is the figure of cylindrical form that schematically illustrates the filter cloth of Fig. 1.
Fig. 3 is the side view that forms the filter cloth of cylindrical form.
Fig. 4 is the sectional elevation along the IV-IV line of Fig. 3.
Fig. 5 is the schematic isometric that the end portion treatment of the filter cloth that when sewing machine is sewed, carries out is described.
Fig. 6 is that expression sews up snap rings and the cutaway view of the oral area that forms.
Fig. 7 is the longitudinal section of filter cloth structure that under deployed condition, schematically illustrates the shaping filter of another embodiment of the present invention.
Fig. 8 is the schematic, cross-sectional diagram of the shaping filter of Fig. 7.
Fig. 9 is the longitudinal section of filter cloth structure that under deployed condition, schematically illustrates the shaping filter of the another embodiment of the present invention.
Figure 10 is the longitudinal section of filter cloth structure that under deployed condition, schematically illustrates the shaping filter of the another embodiment of the present invention.
Figure 11 is that the position of dissecing oral area is represented through making the side view of the completion status of accomplishing the filter with oral area and bottom.
(symbol description)
10 filter clothes
10-1,10-2 return portion
12,12 ' shield
14 guard rings (retainer)
16-1,16-2 sewing line
22 snap rings
24 oral area cloth
The specific embodiment
In Fig. 1; Symbol 10 schematically illustrates the filter cloth in the shaping filter of the present invention; Filter cloth 10 is needle punched non-woven fabrics in this embodiment, and it can plant the short fiber (textile fabric (staple)) of organic synthetic fibers such as polyester, nylon or acrylic acid that (Japanese: the base cloth of weaving cotton cloth that the yarn bar) forms constitutes in the yarn as organic synthetic fibers (short fiber or long fibre) such as polyester, nylon or acrylic acid through utilizing acupuncture.Also can constitute separately, to replace nonwoven through good the weaving cotton cloth of control of dust property.In addition, filter cloth 10 is not limited to constitute and contains organic synthetic fibers, also can constitute inorfils such as containing pottery.Filter cloth 10 is through pleating machine and like Fig. 1 and the crimp shape that forms shown in Figure 2.In addition, in this embodiment, the filter cloth cylindrical form that forms as shown in Figure 2.The return portion of crimp shape (protuberance 10-1 and recess 10-2) the edge direction parallel with center line extended; And through after state the bag shape that method forms an end (lower end) sealing, open upper end, thereby form the structure that (outer circumferential side) imports and shown in arrow b, discharge from inboard (interior all sides) from the outside shown in arrow a.Therefore, the filtering layer in the filter cloth 10 is positioned at the outer peripheral face of the cylindrical body of Fig. 2, and the base cloth in the filter cloth 10 is positioned at the inner peripheral surface of cylindrical body.That is, handle fluid at first through with filter cloth 10 in the filtering layer in the outside contact dust that makes in the processing fluid and is kept by filtering layer.
According to the present invention; The maintenance of the crimp shape of filter cloth 10 does not rely in the past the process of resin that in the nonwoven that lacks rigidity etc., adopts morely (even if do not get rid of process of resin basically; Also carry out with required Min.), but carry out the maintenance of crimp shape through making structure.Promptly; Because nonwoven can't keep crimp shape separately because of rigidity is low, therefore, earlier nonwoven was dipped in the thermosetting resin in the fold first being processed in the past; And make nonwoven to be soaked with the state process pleating machine of thermosetting resin; At this moment, through heat curing temperature heating filter cloth, thereby carry out the curing of crimp shape with resin.Do not keep owing to do not rely on process of resin (or with minimal amount of resin) to carry out crimp shape in the present invention basically, therefore adopt and make structure.To keeping crimp shape to describe through making structure; In Fig. 1; Symbol 16-1,16-2 represent to be used to keep the sewing line of crimp shape, and sewing line 16-1,16-2 sew up (sewing) near the protuberance 10-1 and the recess 10-2 of crimp shape with the relative portion with filter cloth 10.Promptly; On position near protuberance 10-1 or recess 10-2; For example, apart from the summit of protuberance 10-1 or recess 10-2 or 3～10 millimeters of bottoms, comparatively it is desirable to the sewing thread (being the sewing thread of 19～20 numbers under the situation at mylar) of 8～60 numbers the opposite layer of filter cloth 10 sewed up on the position of 5～6 mm distance.In addition, extend on the essence total length of sewing line 16-1, the 16-2 crimp shape part at filter cloth as shown in Figure 2, can carry out the maintenance of crimp shape by this.
In embodiment shown in Figure 1, on the part of all return portion (recess 10-2) of the inboard in the cylindrical form of filter cloth (the guard ring configuration side of afterwards stating), (exterior angle side) is connected to return portion with shield 12 from the outside.Shield 12 extends along the essence total length of the filter cloth 10 of tubular, is used for through the sewing line 16-2 that makes the inboard of keeping crimp shape shield 12 also being stitched together.That is, though in Fig. 2, illustrate shield 12 for the sake of simplicity and not, in this embodiment, (exterior angle side) is connected to shield 12 on the essence total length of recess 10-2 from the outside, and is stitched together through sewing line 16-2.Shield 12 both can be identical cloth, also can be processed by fiber of the same race, the cloth of littler weighing.The configuration of the shield 12 on the entire cross section of filter cloth 10 is as shown in Figure 4, and in this embodiment, shield 12 is positioned at inboard (guard ring 14 sides).Figure 11 representes to be in the filter cloth 10 of the state in the chamber that is configured in dust arrester, inserts the guard ring 14 dispose the cylindrical form that is used to keep filter cloth 10 in the inboard of filter cloth 10 (interior all sides of tubular).Guard ring 14 both can be the known type of cage shape, also can be the type that punch retainer (punching plate) is formed tubular.Fig. 1 amplifies and to have schematically illustrated the crimp shape return portion 12 of the inboard of shield 12 through sewing up butt and the position relation of guard ring 14.
In the embodiment of Fig. 1; The return portion (protuberance 10-1) of (afterwards state away from guard ring one side) does not have butt configuration shield in the outside of crimp shape; But also can be shown in double dot dash line 12 ', in the return portion (protuberance 10-1) in the outside of crimp shape also butt configuration shield 12 ', shield 12 ' is stitched together to continue to use in the sewing line 16-1 of the crimp shape of keeping the outside; By this, can obtain more firm crimp shape.
As shield 12, adopt basically and the material identical materials of using filter cloth 10.If filter cloth 10 is polyester, then shield 12 also is a polyester material.At filter cloth 10 is under the situation of polyester non-woven fabric, and shield 12,12 ' can be that polyester is weaved cotton cloth.Can adopt the gross weight cloth littler than the gross weight of filter cloth 10.At filter cloth 10 is under the situation of weaving cotton cloth, and shield 12 can use the cloth identical with it.
Then; Form a bag shape to being used to utilize as stated through the filter cloth of making the tubular after making crimp shape fixing; And (Japanese: the structure セ Le プ レ one ト) describes, and Fig. 3 and Fig. 4 represent will be through making the state that filter cloth after making crimp shape fixing forms cylindrical form to be installed to the dividing plate of dust collect plant.That is, will be rolled into tubular, and make through seam longitudinally and to constitute cylindrical form through the filter cloth of making after making crimp shape fixing.In addition, as shown in Figure 5 for the two ends up and down of cylindrical form, fold pressed at the upper and lower end parts 10-1 place of tubular filter cloth 10 collapse.The undergauge end 10-1 of the filter cloth through sewing after the planarization is also illustrated among Fig. 3.In addition; Other the non-filter cloth that sews up tubular and form oral area filter cloth 10 lower end butt configuration shield 18 and make and the shape pouch, the upper end of filter cloth 10 is suitably to carry out snap rings or sewing up of rope and to form oral area with the mode that dust collect plant is fitted mutually.In Fig. 3, symbol 18 is circular shields, shield 18 and the bottom 10-1 butt after planarization as the filter cloth 10 of filter bottom; The peripheral part of shield 18 is turned back towards the upper surface of the filter cloth 10 of tubular; The above-mentioned part 18A (Figure 11) that turns back of shield 18 sews up with filter cloth 10, in Figure 11, and the part of making that symbol L2 representes to sew and forms; By this, can obtain making the closed bottom of the shaping filter of structure.On the other hand, the part of making as oral area of shaping filter is schematically illustrated by Fig. 6, and symbol 22 is metal fabrication cyclizations, and it is formed by elasticity steel strap.Snap rings 22 is surrounded by oral area cloth 24, and through oral area cloth 24 is made at two ends, snap rings 22 is sewed up in the oral area cloth 24 (representes to sew up line with symbol L3).Like this, the oral area cloth 24 that has sewed up after the snap rings 22 is mounted and sews up the end as oral area (upper end of Figure 11) (representing to sew up line with symbol L4) to filter cloth 10.
Be the length that obtains stipulating, also can longitudinally dispose the filter cloth 10 of a plurality of tubulars, and will constitute vertically longer through making connection each other near the filter cloth 10 of end.
Fig. 7 representes another embodiment; Its 12 of shields with recess 10-2 (return portion of the inboard in the cylindrical form) butt not with this aspect of protuberance 10-1 (return portion of outer circumferential side) butt on identical with Fig. 1; But not at all recess 10-2 butt configuration shield 12 all, but made suitably to delete (with reference to Fig. 8).The degree of deleting is different and different according to service condition.That is, because the replacing of filter cloth is mostly regularly carried out in dust arrester, therefore, through forming the minimal shield 12 that can keep crimp shape during use, with regard to the balance between ability acquisition cost and the strainability.
Fig. 9 representes another embodiment; In this embodiment; At 12 of shields and recess 10-2 (return portion in interior week) (all or a part) butt and to strengthen on this aspect of crimp shape through sewing line 16-2 be identical, but do not carry out making of relative portion at protuberance 10-1 (return portion of periphery).According to the difference of behaviour in service, in this structure, the reinforced effects that also can bring through shield 12 and keep desirable crimp shape during use.
Figure 10 representes another embodiment; In this embodiment; The return portion (recess 10-2) in week (guard ring 14 1 sides) does not apply under the situation of strong load in when pulsing in cleaning process; Be stitched together only at the return portion (protuberance 10-1) of periphery (away from guard ring 14 1 sides) butt configuration shield 12 ' (or all) partly, and with sewing line 16-1.Inboard return portion (recess 10-2) is not made, but can use the sewing line identical with the sewing line 16-2 of Fig. 1 to carry out making of relative portion according to the needs on the fold intensity.
The filter that constitutes as stated is identical with known installation method towards the installation of dust collect plant etc.That is, in Figure 11, symbol 26 is dividing plates of dust collect plant, and filter is inserted in a plurality of peristomes 28 that form on the dividing plate 26, and utilizes the slot part on surface to rabbet peristome 28 snap rings 22.In addition, shown in double dot dash line, insert the guard ring 14 of the shape that is used for keeping the filter that moves from the inboard of filter.
Use the filter cloth 10 of the embodiment of Fig. 1; In the return portion (the part 10-2 of recess) of the crimp shape of the filter cloth 10 of guard ring side (inboard) (if desired; Then also in the return portion (the part 10-1 of protuberance) of the crimp shape of the filter cloth in the outside) butt configuration shield 12 (is shield 12 ' at the part 10-1 of protuberance); The sewing line 16-2 (when at the part 10-1 of protuberance also butt configuration shield 12 ' is sewing line 16-1) that utilization is used to keep crimp shape is stitched together; Therefore, in the time of cleaning to filter cloth repeatedly the collision impact that causes of pulse reinforce.In addition, so that pulse is sprayed repeatedly, the lower end that sometimes Spring Card is contained in filter cloth is so that more tensioning of filter cloth; In the present invention; Through shield 12,12 ' is set, the intensity on the tension direction is improved, thereby can be suitable for this mode that applies pulse repeatedly.
Claims (4)
1. shaping filter; It disposes the filter cloth of cylindrical form at the inboard of the dividing plate of dust collect plant configuration guard ring and in its outside, filter cloth is crimp shape, it is characterized in that; In order to keep crimp shape; Relative portion at least a portion place of the return portion of crimp shape with filter cloth sews up, and at least a portion of the return portion that portion is relatively sewed up, is used to keep the sewing up of relative portion of the filter cloth of crimp shape with the state with shield and return portion butt.
2. shaping filter as claimed in claim 1; It is characterized in that; The said portion that sews up is provided with along extending in the pleated portions essence length range in the longitudinal direction of filter cloth, and extends setting with the essence total length that the said shield of return portion butt is also gone up along its length.
3. shaping filter as claimed in claim 2 is characterized in that, shield with near each return portion butt of guard ring side, and be used to keep the sewing up of relative portion of the filter cloth of crimp shape.
4. shaping filter as claimed in claim 2 is characterized in that, shield in a circumferential direction across appropriate intervals with near the return portion butt of guard ring side, and be used to keep the sewing up of relative portion of the filter cloth of crimp shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-093098 | 2011-04-19 | ||
| JP2011093098A JP5748541B2 (en) | 2011-04-19 | 2011-04-19 | Molded filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102743934A true CN102743934A (en) | 2012-10-24 |
| CN102743934B CN102743934B (en) | 2015-11-25 |
Family
ID=47024639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110320311.2A Active CN102743934B (en) | 2011-04-19 | 2011-10-11 | Shaped filter |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5748541B2 (en) |
| KR (1) | KR101325077B1 (en) |
| CN (1) | CN102743934B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110448973A (en) * | 2019-08-07 | 2019-11-15 | 九江七所精密机电科技有限公司 | A kind of taper cartridge type air filtering core and its manufacture craft |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101325078B1 (en) * | 2012-11-26 | 2013-11-05 | 주식회사 이피아이티 | Filter for dust collector |
| JP5765322B2 (en) * | 2012-12-05 | 2015-08-19 | 住友電気工業株式会社 | Pleated filter, ballast water treatment apparatus using the pleat filter, ballast water treatment method, and pleat filter manufacturing method |
| KR101532065B1 (en) * | 2013-03-20 | 2015-06-30 | 주식회사 이피아이티 | Filtering layer for dust and manufacturing method thereof, filter for dust collector by using the same |
| AU2015275039A1 (en) * | 2014-06-10 | 2016-12-08 | The Procter & Gamble Company | Air filter bag |
| JP2016052644A (en) * | 2014-09-04 | 2016-04-14 | 住友電気工業株式会社 | Pleat filter, pleat filter cartridge, and ballast water treatment apparatus and ballast water treatment method using the same |
| KR101880224B1 (en) * | 2016-06-24 | 2018-08-17 | 주식회사 이피아이티 | Filter for dust collector and method for manufacturing filter bag for dust collector |
| KR101998373B1 (en) * | 2017-11-16 | 2019-07-09 | 주식회사 이피아이티 | Filter bag for dust collector |
| KR102041713B1 (en) | 2018-04-30 | 2019-11-06 | 조광섭 | Filter bag for dust collector and manufacturing method thereof |
| WO2021205500A1 (en) * | 2020-04-06 | 2021-10-14 | 三菱電機株式会社 | Filter, air conditioner and method for producing filter |
| JP7486179B2 (en) | 2020-09-29 | 2024-05-17 | 株式会社相模商会 | Cylindrical filter body for bag filter and method for manufacturing cylindrical filter body for bag filter |
| KR102634873B1 (en) | 2022-11-09 | 2024-02-08 | 지테크 주식회사 | Pleatable Non-woven Filter Media Using Low-melting PET Non-woven Fabric |
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| CN101306284A (en) * | 2007-05-15 | 2008-11-19 | 株式会社相模商会 | Shaping filter and manufacturing method thereof |
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| CN110448973A (en) * | 2019-08-07 | 2019-11-15 | 九江七所精密机电科技有限公司 | A kind of taper cartridge type air filtering core and its manufacture craft |
| CN110448973B (en) * | 2019-08-07 | 2021-09-17 | 九江七所精密机电科技有限公司 | Conical cylinder type air filter element and manufacturing process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012223701A (en) | 2012-11-15 |
| KR101325077B1 (en) | 2013-11-05 |
| KR20120123173A (en) | 2012-11-08 |
| CN102743934B (en) | 2015-11-25 |
| JP5748541B2 (en) | 2015-07-15 |
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