CN107930280A - PTFE overlay films needleless seam filter bag prepared by a kind of hot melt - Google Patents
PTFE overlay films needleless seam filter bag prepared by a kind of hot melt Download PDFInfo
- Publication number
- CN107930280A CN107930280A CN201810005012.1A CN201810005012A CN107930280A CN 107930280 A CN107930280 A CN 107930280A CN 201810005012 A CN201810005012 A CN 201810005012A CN 107930280 A CN107930280 A CN 107930280A
- Authority
- CN
- China
- Prior art keywords
- filter bag
- hot melt
- ptfe
- needleless
- woven
- 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.)
- Pending
Links
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims abstract description 38
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims abstract description 38
- 239000012943 hotmelt Substances 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 31
- 150000001875 compounds Chemical class 0.000 claims abstract description 7
- 238000002844 melting Methods 0.000 claims abstract description 4
- 230000008018 melting Effects 0.000 claims abstract description 4
- 230000004888 barrier function Effects 0.000 claims description 19
- 230000001186 cumulative effect Effects 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 6
- 238000009941 weaving Methods 0.000 claims description 6
- 229920004933 Terylene® Polymers 0.000 claims description 5
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 5
- -1 polypropylene Polymers 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 238000004220 aggregation Methods 0.000 claims description 3
- 230000002776 aggregation Effects 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 13
- 239000000428 dust Substances 0.000 abstract description 6
- 238000009958 sewing Methods 0.000 description 6
- 238000007731 hot pressing Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005253 cladding Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229920000784 Nomex Polymers 0.000 description 3
- 239000004734 Polyphenylene sulfide Substances 0.000 description 3
- 239000012982 microporous membrane Substances 0.000 description 3
- 239000004763 nomex Substances 0.000 description 3
- 229920000069 polyphenylene sulfide Polymers 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000003746 feather Anatomy 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 241000270923 Hesperostipa comata Species 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010417 needlework Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Classifications
-
- 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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible 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
- B01D46/0001—Making filtering elements
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Abstract
The invention discloses PTFE overlay films needleless prepared by a kind of hot melt to stitch filter bag, including filter bag body, the filter bag body includes woven layer, and it is compound in the non-woven material layer on the woven layer outer surface, the non-woven material layer length is less than the woven layer length, make to form hot melt zone in a side of the woven layer, the inner surface of another side of woven layer is connected by hot melting way with hot melt zone.The present invention not only increases the work efficiency for making dedusting filtering bag, while improves the efficiency of dust collection of dedusting filtering bag again.
Description
Technical field
The present invention relates to dedusting filtering bag technology, is stitched more specifically to PTFE overlay films needleless prepared by a kind of hot melt
Filter bag.
Background technology
At present, apply to the environment friendly dedusting filter bag of coal-burning power plant and garbage burning factory generally all using terylene needled felt,
Polyphenylene sulfide Nomex, aramid fiber Nomex or fiberglass woven weaving or terylene spun-bonded non-woven fabrics etc. make.Filter bag interface uses
Three pins sew, and the diameter of suture needle is about 0.5~2mm, removes the diameter of sewing thread, and the diameter of each pin hole is calculated with 0.1mm, often
A pin hole area is then 0.00785mm2.It is 0.0025mm and the dust average grain diameter of PM2.5 is 2.5 μm, projected area is
0.00000491mm2That is, it can be worn at the same time by the dust of 1599 PM2.5 at the same time on each pin hole area
Thoroughly, and a bore is 130mm, the dedusting filtering bag of long 6000mm, bag body using three pins sew, sack using four pins sewing, bag
The density of body suture needle is 84 pins/100mm, and the general filter bag of 6000mm then has 5040 pin holes, the filter bag of 130mm bores, its bag
Mouth Zhou Changwei 408.2mm, sack pin density is 80 pins/100mm, and whole sack then there are about 326 pin holes, and whole above-mentioned filter bag is total
Meter there are about 5366 pin holes, and total pin hole area is 42.12mm2, the dust of 8.58x106 PM2.5 can be allowed to pass through at the same time.
In existing technology, as Patent No. ZL 201410522907.4 discloses a kind of pin-free dedusting filtering bag
Production method, including the filter bag sewed by the Nomex or non-woven fabrics of the laminating polytetrafluoroethylmicroporous microporous membrane of dust-collecting face, bag body are adopted
Sewed with three pins, using the sewing of four pins, the characteristics of production method disclosed in patent No. ZL201410522907.4 is sack
The micropore band of hot pressing cladding single side sintering sizing on the sewing needlework of filter bag, micropore band is covered in bag body and the pin of sack is sewed on,
To improve filtering accuracy at the pin seam of sewing filtering bag；Its described hot pressing temperature is 400~1000 DEG C, laminating pressure for 0.2~
1MPa。
In technology disclosed above, bag body and the sack position of dedusting filtering bag are adopted sew with a needle and thread and be connected after, then use
One layer of micropore band hot pressing cladding is covered on sewing pinprick, such manufacture craft there is it is following the defects of：
Micropore band, hot pressing cladding micropore band etc. are made with material and because of increase micropore band, hot pressing cladding micropore 1. adding
With the increase of caused technique road sequence, the increase for making dedusting filtering bag cost of manufacture, overall work efficiency have impact on the contrary
Therefore it is low；
2. the cost of dedusting filtering bag integral manufacturing is added without doubt, it is time consuming to take manpower；
3. add the probability for making dedusting filtering bag defective products.
The content of the invention
In view of the above defects of the prior art, the PTFE prepared the object of the present invention is to provide a kind of hot melt covers
Film needleless stitches filter bag, not only increases the work efficiency for making dedusting filtering bag, while improve the efficiency of dust collection of dedusting filtering bag again.
To achieve the above object, the present invention adopts the following technical scheme that：
PTFE overlay films needleless seam filter bag prepared by a kind of hot melt, including filter bag body, the filter bag body include knitting
The producing material bed of material, and the non-woven material layer being compound on the woven layer outer surface, the non-woven material layer length are small
In the woven layer length, make to form hot melt zone in a side of the woven layer, the woven layer is another
The inner surface of a side is connected by hot melting way with hot melt zone；
The non-woven material layer is PTFE microporous barriers, and the density of the PTFE microporous barriers is 0.5-1.0g/cm3, it is described
Micro pore volume distribution on PTFE microporous barriers is as follows：
At least the 15% of the PTFE microporous barriers cumulative volume is less than the micropore of 50um for radius, and the PTFE microporous barriers are overall
Long-pending at least 40% is micropore of the radius between 50um~100um, and at least the 10% of the PTFE microporous barriers cumulative volume is
Radius is more than the micropore of 200um.
The non-woven material layer thickness is between 1um~10um.
The woven layer is terylene, PPS, acrylic or polypropylene fibre.
The filter bag body has 0.1m2~1m2Airmeter area.
Total aggregation base weight≤200g/m of the filter bag body2。
The hot melt zone width is 10mm~20mm.
In above-mentioned technical solution, PTFE overlay films needleless prepared by a kind of hot melt provided by the present invention stitches filter bag,
Needleless stitches trace on filter bag body so that filter bag body forms a monolithic construction, further improves the dedusting of filter bag
Effect, while the producing efficiency of filter bag is also improved, also, filter bag junction is connected using hot melt and is connected than existing pin stitch
Leakproofness it is better, be not easy to come off.
Brief description of the drawings
Fig. 1 is the expanded schematic diagram of filter bag of the present invention；
Fig. 2 is the schematic diagram in A-A directions in Fig. 1.
Embodiment
Technical scheme is further illustrated with reference to the accompanying drawings and examples.
Incorporated by reference to shown in Fig. 1 to Fig. 2, PTFE overlay films needleless prepared by a kind of hot melt provided by the present invention stitches filter bag,
Including filter bag body, the filter bag body includes woven layer 1, and is compound in the weaving material by hot composition process
Non-woven material layer 2 on 1 outer surface of the bed of material, 2 length of non-woven material layer need to be less than 1 length of woven layer,
The left side of non-woven material layer 2 flushes compound with the left side of woven layer 1, so allows for the woven layer 1
Right edge on form the hot melt zone 3 that one piece of width is 10mm~20mm, by the inner surface of 1 right edge of woven layer
It is connected by hot melting way with hot melt zone 3, so that the filter bag body of a needleless seam be made.
Since polytetrafluoroethylene (PTFE) (PTFE) material has non-stick in itself, and 1 surface of woven layer has all been compounded with
Polytetrafluoroethylmicroporous microporous membrane, if so directly by a side of weaving material with compound after opposite side edge contraction, due to adding
Man-hour, heat need from one side to reach another side, and difficulty of processing is very high, in advance will wherein side so in processing
Face " feather plucking ", removes the polytetrafluoroethylmicroporous microporous membrane on its surface, followed by the heat resisting temperature of polytetrafluoroethylene (PTFE) in 250-280
DEG C, and the combined temp of weaving material, using temperature difference, lifts compound fastness usually below 200 DEG C, " feather plucking " width is usual
In 10-20mm.
Preferably, the non-woven material layer 2 selects PTFE microporous barriers, the density of the PTFE microporous barriers selects 0.5g/cm3
~1.0g/cm3, thickness select 1um~10um between, good filter efficiency and low pressure drop are made it have, because fiber exists
Its thickness direction side extends up, and can obtain more inlet air flow paths, causes to contact less between fiber and is used for
The usable fibers surface area of arrested particles is larger.
Preferably, the micro pore volume distribution on the PTFE microporous barriers is as follows：
The pore volume distribution of non-woven material layer 2 characterizes the porosity of non-woven material, has preferable hole body integration
At least the 15% of the PTFE microporous barriers cumulative volume of cloth is less than the micropore of 50um for radius, the PTFE microporous barriers cumulative volume
At least 40% is micropore of the radius between 50um~100um, and at least the 10% of the PTFE microporous barriers cumulative volume is radius
Micropore more than 200um.
Preferably, the woven layer 1 selects the materials such as terylene, PPS, acrylic or polypropylene fibre, due to PTFE materials
Between do not possess preferable hot melt, so, using woven layer 1 carry out hot-melt adhesive paste, and woven layer 1 select material
Material all has good hot melt, and the leakproofness after hot melt is also good.
Preferably, the filter bag body has 0.1m2~1m2Airmeter area, airmeter area is that air-flow therefrom leads to
The ventilative area of filter bag body.This airmeter area is by outwards lying in filter bag body without any folding or fold
Single plane on and then measurement total surface area measure.The airmeter area of the filter bag body of measurement may not include
Wherein physically or chemically barrier (such as structure or coating on deduster edge) prevents portion of the air-flow by air dust remover
Any area divided.It the use of the deduster of the airmeter area with bigger can be desired, lead to because it can obtain air
Relatively low superficial velocity during filter bag body, it reduce pressure drop.
Preferably, total aggregation base weight of the filter bag body is usually more than 200g/m2, or no more than 150g/
m2, or no more than 100g/m2。
Those of ordinary skill in the art it should be appreciated that the embodiment of the above be intended merely to explanation the present invention,
And be not used as limitation of the invention, as long as in the spirit of the present invention, the change to embodiment described above
Change, modification will all fall in the range of claims of the present invention.
Claims (6)
1. PTFE overlay films needleless seam filter bag prepared by a kind of hot melt, including filter bag body, it is characterised in that：The filter bag sheet
Body includes woven layer, and the non-woven material layer being compound on the woven layer outer surface, the non-woven material
Layer length is less than the woven layer length, makes to form hot melt zone in a side of the woven layer, the weaving
The inner surface of another side of material layer is connected by hot melting way with hot melt zone；
The non-woven material layer is PTFE microporous barriers, and the density of the PTFE microporous barriers is 0.5g/m3~1.0g/m3, it is described
Micro pore volume distribution on PTFE microporous barriers is as follows：
At least the 15% of the PTFE microporous barriers cumulative volume is less than the micropore of 50um for radius, the PTFE microporous barriers cumulative volume
At least 40% is micropore of the radius between 50um~100um, and at least the 10% of the PTFE microporous barriers cumulative volume is radius
Micropore more than 200um.
2. PTFE overlay films needleless seam filter bag prepared by a kind of hot melt as claimed in claim 1, it is characterised in that：Described is non-
Weaving material layer thickness is between 1um~10um.
3. PTFE overlay films needleless seam filter bag prepared by a kind of hot melt as claimed in claim 1, it is characterised in that：Described knits
The producing material bed of material is terylene, PPS, acrylic or polypropylene fibre.
4. PTFE overlay films needleless seam filter bag prepared by a kind of hot melt as claimed in claim 1, it is characterised in that：The filter
Bag body has 0.1m2~1m2Airmeter area.
5. PTFE overlay films needleless seam filter bag prepared by a kind of hot melt as claimed in claim 1, it is characterised in that：The filter
Total aggregation base weight≤200g/m of bag body2。
6. PTFE overlay films needleless seam filter bag prepared by a kind of hot melt as claimed in claim 1, it is characterised in that：The heat
Molten peak width is 10mm~20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810005012.1A CN107930280A (en) | 2018-01-03 | 2018-01-03 | PTFE overlay films needleless seam filter bag prepared by a kind of hot melt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810005012.1A CN107930280A (en) | 2018-01-03 | 2018-01-03 | PTFE overlay films needleless seam filter bag prepared by a kind of hot melt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107930280A true CN107930280A (en) | 2018-04-20 |
Family
ID=61937345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810005012.1A Pending CN107930280A (en) | 2018-01-03 | 2018-01-03 | PTFE overlay films needleless seam filter bag prepared by a kind of hot melt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107930280A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270167A (en) * | 2019-07-31 | 2019-09-24 | 常州春南环保设备有限公司 | A kind of dust settling pocket |
| CN113769490A (en) * | 2021-08-19 | 2021-12-10 | 江苏鼎盛滤袋有限公司 | Composite hot-melt filter bag and preparation process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274179A (en) * | 2007-03-29 | 2008-10-01 | 东丽纤维研究所（中国）有限公司 | Filtering bag |
| CN104436866A (en) * | 2014-10-08 | 2015-03-25 | 上海金由氟材料股份有限公司 | Preparation method of pinhole-free dedusting filter bag |
| CN105058773A (en) * | 2015-07-21 | 2015-11-18 | 安徽省元琛环保科技有限公司 | Hot melting seaming technique for polytetrafluoroethylene composite filter bag |
| CN107096313A (en) * | 2017-06-23 | 2017-08-29 | 江苏金由新材料有限公司 | A kind of dedusting filtering bag of double-decker and preparation method thereof |
| CN107261663A (en) * | 2017-08-15 | 2017-10-20 | 山东新力环保材料有限公司 | A kind of low emission complex function type membrane bag filter preparation method |
| CN207970609U (en) * | 2018-01-03 | 2018-10-16 | 江苏金由新材料有限公司 | A kind of PTFE overlay film needleless seam filter bag prepared by hot melt |
-
2018
- 2018-01-03 CN CN201810005012.1A patent/CN107930280A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274179A (en) * | 2007-03-29 | 2008-10-01 | 东丽纤维研究所（中国）有限公司 | Filtering bag |
| CN104436866A (en) * | 2014-10-08 | 2015-03-25 | 上海金由氟材料股份有限公司 | Preparation method of pinhole-free dedusting filter bag |
| CN105058773A (en) * | 2015-07-21 | 2015-11-18 | 安徽省元琛环保科技有限公司 | Hot melting seaming technique for polytetrafluoroethylene composite filter bag |
| CN107096313A (en) * | 2017-06-23 | 2017-08-29 | 江苏金由新材料有限公司 | A kind of dedusting filtering bag of double-decker and preparation method thereof |
| CN107261663A (en) * | 2017-08-15 | 2017-10-20 | 山东新力环保材料有限公司 | A kind of low emission complex function type membrane bag filter preparation method |
| CN207970609U (en) * | 2018-01-03 | 2018-10-16 | 江苏金由新材料有限公司 | A kind of PTFE overlay film needleless seam filter bag prepared by hot melt |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270167A (en) * | 2019-07-31 | 2019-09-24 | 常州春南环保设备有限公司 | A kind of dust settling pocket |
| CN113769490A (en) * | 2021-08-19 | 2021-12-10 | 江苏鼎盛滤袋有限公司 | Composite hot-melt filter bag and preparation process thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20180420 |