CN107096313A - A kind of dedusting filtering bag of double-decker and preparation method thereof - Google Patents
A kind of dedusting filtering bag of double-decker and preparation method thereof Download PDFInfo
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- CN107096313A CN107096313A CN201710490995.8A CN201710490995A CN107096313A CN 107096313 A CN107096313 A CN 107096313A CN 201710490995 A CN201710490995 A CN 201710490995A CN 107096313 A CN107096313 A CN 107096313A
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- Prior art keywords
- dedusting filtering
- bag
- microporous membrane
- laminating
- filtering bag
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- 238000001914 filtration Methods 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000012982 microporous membrane Substances 0.000 claims abstract description 42
- 238000010030 laminating Methods 0.000 claims abstract description 36
- 229920000784 Nomex Polymers 0.000 claims abstract description 19
- 239000004763 nomex Substances 0.000 claims abstract description 19
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 17
- 238000000576 coating method Methods 0.000 claims description 23
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000000839 emulsion Substances 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 4
- 238000004513 sizing Methods 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims 4
- -1 polytetrafluoroethylene Polymers 0.000 claims 2
- 239000000428 dust Substances 0.000 abstract description 9
- 238000009958 sewing Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000007731 hot pressing Methods 0.000 description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 238000005253 cladding Methods 0.000 description 4
- 238000010417 needlework Methods 0.000 description 3
- 229920004933 Terylene® Polymers 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 241000270923 Hesperostipa comata Species 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 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
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0008—Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Thermal Sciences (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fluid Mechanics (AREA)
- Filtering Materials (AREA)
Abstract
The invention discloses a kind of dedusting filtering bag of double-decker and preparation method thereof, dedusting filtering bag includes sack and bag body, Nomex/the non-woven fabrics of sack and bag as the laminating polytetrafluoroethylmicroporous microporous membrane of lateral surface, the polytetrafluoroethylmicroporous microporous membrane of the laminating Nomex/non-woven fabrics lateral surface in dedusting filtering bag has double-layer structure, in shifting to install between the micropore of two layers of polytetrafluoroethylmicroporous microporous membrane on Nomex/non-woven fabrics, the link position of sack and the bag body is laminating and form one by hot blast.The present invention improves the operating efficiency for making dedusting filtering bag, while improving the efficiency of dust collection of dedusting filtering bag again by improvements over the prior art.
Description
Technical field
The present invention relates to Environmental-protecting dust-removing filter bag, dedusting filtering bag and its preparation more specifically to a kind of double-decker
Method.
Background technology
At present, apply to the environment friendly dedusting filter bag of coal-burning power plant and garbage burning factory typically all using terylene needled felt,
Polyphenylene sulfide Nomex, aramid fiber Nomex or fiberglass woven are weaved cotton cloth or terylene spun-bonded non-woven fabrics etc. makes.Filter bag interface is used
Three pins are sewed, and the diameter of suture needle is about 0.5~2mm, remove the diameter of sewing thread, and the diameter of each pin hole is calculated with 0.1mm, often
Individual pin hole area is then 0.00785mm2.And PM2.5 dust average grain diameter is 2.5 μm, as 0.0025mm, projected area is
0.00000491mm2That is, can simultaneously be penetrated by 1599 PM2.5 dust simultaneously on each pin hole area, and one
Individual bore is 130mm, and long 6000mm dedusting filtering bag, bag body is sewed using three pins, and sack is sewed using four pins, bag body suture needle
Density is 84 pins/100mm, and 6000mm general filter bag then has 5040 pin holes, the filter bag of 130mm bores, its sack 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, which is amounted to, there are about
5366 pin holes, total pin hole area is 42.12mm2, 8.58x106 PM2.5 dust can be allowed to pass through simultaneously.
In existing technology, as Patent No. ZL 201410522907.4 discloses a kind of pin-free dedusting filtering bag
Preparation method, including Nomex or the filter bag of non-woven fabrics sewing by the laminating polytetrafluoroethylmicroporous microporous membrane of dust-collecting face, bag body are adopted
Sewed with three pins, sack is using the sewing of four pins, the characteristics of preparation method disclosed in patent No. ZL201410522907.4
The micropore band of hot pressing cladding one 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,
Filtering accuracy at pin seam to improve sewing filtering bag；Its described hot pressing temperature be 400~1000 DEG C, laminating pressure be 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, and such manufacture craft has following defect：
1. making micropore band, hot pressing cladding micropore band etc. are added with material and because of increase micropore band, hot pressing cladding micropore
The technique road sequence increase that band is brought, have impact on the increase for making dedusting filtering bag cost of manufacture, overall operating efficiency on the contrary
Therefore it is low；
2. the cost of dedusting filtering bag integral manufacturing is added without doubt, time-consuming expense manpower of taking a lot of work；
3. add the probability for making dedusting filtering bag defective products.
The content of the invention
For drawbacks described above present in prior art, it is an object of the invention to provide a kind of dedusting filtering bag of double-decker
And preparation method thereof, by improvements over the prior art, the operating efficiency for making dedusting filtering bag is improved, is removed while improve again
The efficiency of dust collection of dirt filter bag.
To achieve the above object, the present invention is adopted the following technical scheme that：
On the one hand, a kind of dedusting filtering bag of double-decker, dedusting filtering bag includes sack and bag body, and sack and bag are as outside
Nomex/non-woven fabrics of the laminating polytetrafluoroethylmicroporous microporous membrane in face, it is described laminating in outside Nomex/non-woven fabrics of dedusting filtering bag
The polytetrafluoroethylmicroporous microporous membrane of side has on double-layer structure, Nomex/non-woven fabrics two layers polytetrafluoroethylmicroporous microporous membrane
In shifting to install between micropore, the link position of sack and the bag body is laminating and form one by hot blast.
Polytetrafluorethylecoatings coatings are also coated with described polytetrafluoroethylmicroporous microporous membrane.
Described polytetrafluorethylecoatings coatings thickness is 5~50 μm.
Described polytetrafluorethylecoatings coatings are ptfe emulsion.
On the other hand, a kind of preparation method of the dedusting filtering bag of double-decker, comprises the following steps：
S1. one layer of ptfe emulsion will be smeared on two polytetrafluoroethylmicroporous microporous membranes, coating weight is 0.5~
50g/m2, dried 2~20 minutes at a temperature of 80~200 DEG C, be then placed in baking oven and 1~10 is carried out at a temperature of 200~400 DEG C
The sintering sizing of minute, the polytetrafluoroethylmicroporous microporous membrane is 3 D stereo fibrous microcellular structure, and its average pore size is 0.1
~2.5 microns, the Air permenbility under 127Pa pressure is 2~20L/m2.s；
S2. it is a polytetrafluoroethylmicroporous microporous membrane is laminating on the lateral surface of Nomex/non-woven fabrics then covering is upper another
One polytetrafluoroethylmicroporous microporous membrane, and be dislocation arrangement being placed between the micropore on two polytetrafluoroethylmicroporous microporous membranes,
Then polytetrafluoroethylmicroporous microporous membrane is overturn together with Nomex or non-woven fabrics, forms dedusting filtering bag shape；
S3. polytetrafluoroethylmicroporous microporous membrane is carried out into electro-blown using charge ion wind again to remove after processing, electrostatic to be canceled,
It is using hot blast laminating technique that two layers of polytetrafluoroethylmicroporous microporous membrane progress gluing of dedusting filtering bag upper bag mouth and bag body is laminating.
In described step S3, the hot blast temperature of the laminating technique of hot blast is 400~1000 DEG C, and laminating pressure is 0.2
~1MPa.
In above-mentioned technical scheme, a kind of dedusting filtering bag of double-decker provided by the present invention and preparation method thereof,
The junction of the bag body of filter bag, sack is directly attached using hot blast is laminating, original needlework sewing is eliminated, makes micropore
The production process of band and laminating micropore band, greatly improves the operating efficiency that filter bag is made, and using bilayer on the outside of filter bag
Polytetrafluoroethylmicroporous microporous membrane structure, improves efficiency of dust collection so that dust emission concentration is substantially reduced.
Brief description of the drawings
Fig. 1 is the structural plan schematic diagram of the present invention；
Fig. 2 is the sectional view along a-a dotted lines direction 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 and Fig. 2, a kind of dedusting filtering bag of double-decker provided by the present invention, including by lateral surface
The dedusting filtering bag 3 that the non-woven fabrics of Nomex 2/ of laminating polytetrafluoroethylmicroporous microporous membrane 1 makes, dedusting filtering bag 3 includes the He of sack 301
Bag body 302, the polytetrafluoroethylmicroporous microporous membrane 1 of the lateral surface of dedusting filtering bag 3 has double-layer structure, as internal layer and outer layer,
It is in shift to install between micropore 101 on inside and outside two layers of polytetrafluoroethylmicroporous microporous membrane 1, the sack 301 and bag body 302
Link position 303 is connected by the way that hot blast is laminating, so as to form dedusting filtering bag 3.
Preferably, being also coated with polytetrafluorethylecoatings coatings 4, polytetrafluoroethyl-ne on described polytetrafluoroethylmicroporous microporous membrane 1
Ene coatings 4 typically use ptfe emulsion so that dedusting filtering bag 3 has heat-resistant fireproof, the advantages of antiseptic property is preferable.
Preferably, the described thickness of polytetrafluorethylecoatings coatings 4 is optimal between 5~50 μm.
A kind of preparation method of the dedusting filtering bag of double-decker provided by the present invention, comprises the following steps：
S1. one layer of ptfe emulsion is smeared on two polytetrafluoroethylmicroporous microporous membranes 1, coating weight is 0.5~
50g/m2, dried 2~20 minutes at a temperature of 80~200 DEG C, be then placed in baking oven and 1~10 is carried out at a temperature of 200~400 DEG C
The sintering sizing of minute, the polytetrafluoroethylmicroporous microporous membrane is 3 D stereo fibrous microcellular structure, and its average pore size is 0.1
~2.5 microns, the Air permenbility under 127Pa pressure is 2~20L/m2.s；
S2. it is a polytetrafluoroethylmicroporous microporous membrane 1 is laminating on the lateral surface of Nomex 2 or non-woven fabrics, then will covering
Upper another polytetrafluoroethylmicroporous microporous membrane 1, and be in by being placed between the micropore 101 on two polytetrafluoroethylmicroporous microporous membranes 1
Heterogeneous Permutation, is then overturn polytetrafluoroethylmicroporous microporous membrane 1 together with Nomex 2 or non-woven fabrics, forms dedusting filtering bag 3
Shape；
S3. polytetrafluoroethylmicroporous microporous membrane 1 is subjected to electro-blown except processing, electrostatic to be canceled using charge ion wind again
Afterwards, two layers of polytetrafluoroethylmicroporous microporous membrane 1 of the upper bag mouth 301 of dedusting filtering bag 3 and bag body 302 is all entered using hot blast laminating technique
Row gluing is laminating, and the hot blast temperature of the laminating technique of the hot blast is 400~1000 DEG C, and laminating pressure is 0.2~1MPa.
In addition, according to actual conditions or customer demand, the described thickness of polytetrafluorethylecoatings coatings 4 it is general 5~50 μm it
Between, the polytetrafluorethylecoatings coatings 4 on inside and outside two layers of polytetrafluoroethylmicroporous microporous membrane 1 can be consistent with thickness, and or it is inconsistent,
And caused according to the variable thickness of specific polytetrafluorethylecoatings coatings 4, hot blast temperature, the laminating pressure used is also adjusted accordingly
It is whole, it is specific visible：
As embodiment 1, the polytetrafluorethylecoatings coatings 4 of internal layer polytetrafluoroethylmicroporous microporous membrane 1 are 5 μm, outer layer polytetrafluoro
The polytetrafluorethylecoatings coatings 4 of ethene microporous membrane 1 are also 5 μm, and hot blast temperature can be at 400~700 DEG C, and laminating pressure can be 0.2
~0.6MPa.
As embodiment 2, the polytetrafluorethylecoatings coatings 4 of internal layer polytetrafluoroethylmicroporous microporous membrane 1 are 50 μm, outer layer polytetrafluoro
The polytetrafluorethylecoatings coatings 4 of ethene microporous membrane 1 are also 50 μm, and hot blast temperature can be at 700~1000 DEG C, and laminating pressure can be
0.6~1MPa.
As embodiment 3, the polytetrafluorethylecoatings coatings 4 of internal layer polytetrafluoroethylmicroporous microporous membrane 1 are 5 μm, outer layer polytetrafluoro
The polytetrafluorethylecoatings coatings 4 of ethene microporous membrane 1 are also 50 μm, and hot blast temperature can be at 700~900 DEG C, and laminating pressure can be 0.6
~0.9MPa.
As embodiment 4, the polytetrafluorethylecoatings coatings 4 of internal layer polytetrafluoroethylmicroporous microporous membrane 1 are 50 μm, outer layer polytetrafluoro
The polytetrafluorethylecoatings coatings 4 of ethene microporous membrane 1 are also 5 μm, and hot blast temperature can be at 700~900 DEG C, and laminating pressure can be 0.6
~0.9MPa.
In summary, efficiency of dust collection of the present invention is good, is also applied for filtering the filter bag of PM2.5 dust, original due to eliminating
Needlework sewing, make several procedures of micropore band and laminating micropore band so that dedusting filtering bag integral manufacturing is convenient, production cost
Low, using effect is good.In addition, the present invention also has heat-resistant fireproof, preferably, gas filtration resistance is small, uses the longevity for antiseptic property
The features such as ordering long.
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. a kind of dedusting filtering bag of double-decker, dedusting filtering bag includes sack and bag body, sack and bag are laminating as lateral surface
Nomex/non-woven fabrics of polytetrafluoroethylmicroporous microporous membrane, it is characterised in that the laminating Nomex/nonwoven in dedusting filtering bag
The polytetrafluoroethylmicroporous microporous membrane of cloth lateral surface has two layers of polytetrafluoroethylene (PTFE) micropore on double-layer structure, Nomex/non-woven fabrics thin
In shifting to install between the micropore of film, the link position of sack and the bag body is laminating and form one by hot blast.
2. a kind of dedusting filtering bag of double-decker as claimed in claim 1, it is characterised in that described polytetrafluoroethylene (PTFE) micropore
Polytetrafluorethylecoatings coatings are also coated with film.
3. a kind of dedusting filtering bag of double-decker as claimed in claim 2, it is characterised in that described polytetrafluorethylecoatings coatings
Thickness is 5~50 μm.
4. a kind of dedusting filtering bag of double-decker as claimed in claim 2, it is characterised in that described polytetrafluorethylecoatings coatings
For ptfe emulsion.
5. a kind of preparation method of the dedusting filtering bag of double-decker, it is characterised in that comprise the following steps：
S1. one layer of ptfe emulsion will be smeared on two polytetrafluoroethylmicroporous microporous membranes, coating weight is 0.5~50g/m2,
Dried 2~20 minutes at a temperature of 80~200 DEG C, be then placed in baking oven and carried out at a temperature of 200~400 DEG C 1~10 minute
Sintering sizing, the polytetrafluoroethylmicroporous microporous membrane is 3 D stereo fibrous microcellular structure, and its average pore size is 0.1~2.5
Micron, the Air permenbility under 127Pa pressure is 2~20L/m2.s；
S2. it is a polytetrafluoroethylmicroporous microporous membrane is laminating on the lateral surface of Nomex/non-woven fabrics, then upper another will be covered
Polytetrafluoroethylmicroporous microporous membrane, and be dislocation arrangement being placed between the micropore on two polytetrafluoroethylmicroporous microporous membranes, then
Polytetrafluoroethylmicroporous microporous membrane is overturn together with Nomex or non-woven fabrics, dedusting filtering bag shape is formed；
S3. polytetrafluoroethylmicroporous microporous membrane is subjected to electro-blown except handling using charge ion wind again, after electrostatic to be canceled, used
It is laminating that two layers of polytetrafluoroethylmicroporous microporous membrane of dedusting filtering bag upper bag mouth and bag body is carried out gluing by the laminating technique of hot blast.
6. a kind of preparation method of the dedusting filtering bag of double-decker as claimed in claim 5, it is characterised in that described step
In S3, the hot blast temperature of the laminating technique of hot blast is 400~1000 DEG C, and laminating pressure is 0.2~1MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710490995.8A CN107096313A (en) | 2017-06-23 | 2017-06-23 | A kind of dedusting filtering bag of double-decker and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710490995.8A CN107096313A (en) | 2017-06-23 | 2017-06-23 | A kind of dedusting filtering bag of double-decker and preparation method thereof |
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| CN107096313A true CN107096313A (en) | 2017-08-29 |
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|---|---|---|---|
| CN201710490995.8A Pending CN107096313A (en) | 2017-06-23 | 2017-06-23 | A kind of dedusting filtering bag of double-decker and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107930280A (en) * | 2018-01-03 | 2018-04-20 | 江苏金由新材料有限公司 | PTFE overlay films needleless seam filter bag prepared by a kind of hot melt |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN205360868U (en) * | 2016-01-06 | 2016-07-06 | 江苏天毅环保科技有限公司 | Tectorial membrane filter bag |
| CN205699853U (en) * | 2016-05-26 | 2016-11-23 | 浙江绿净环保科技有限公司 | A kind of PTFE laminated needled felt filter bag |
| CN206027285U (en) * | 2016-08-31 | 2017-03-22 | 梁刚 | Filter bag removed dust |
-
2017
- 2017-06-23 CN CN201710490995.8A patent/CN107096313A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN205360868U (en) * | 2016-01-06 | 2016-07-06 | 江苏天毅环保科技有限公司 | Tectorial membrane filter bag |
| CN205699853U (en) * | 2016-05-26 | 2016-11-23 | 浙江绿净环保科技有限公司 | A kind of PTFE laminated needled felt filter bag |
| CN206027285U (en) * | 2016-08-31 | 2017-03-22 | 梁刚 | Filter bag removed dust |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107930280A (en) * | 2018-01-03 | 2018-04-20 | 江苏金由新材料有限公司 | PTFE overlay films needleless seam filter bag prepared by a kind of hot melt |
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Application publication date: 20170829 |