CN106823565A - A kind of method of extension KKF filter filter screen service lifes - Google Patents
A kind of method of extension KKF filter filter screen service lifes Download PDFInfo
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- CN106823565A CN106823565A CN201710072722.1A CN201710072722A CN106823565A CN 106823565 A CN106823565 A CN 106823565A CN 201710072722 A CN201710072722 A CN 201710072722A CN 106823565 A CN106823565 A CN 106823565A
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- filter screen
- fixed disk
- filter
- kkf
- cleaning device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D41/00—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids
- B01D41/04—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids of rigid self-supporting filtering material
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The present invention relates to a kind of KKF filters filter screen maintaining method, and in particular to a kind of method of extension KKF filters filter screen service life.Comprise the following steps：A, the filter screen in filter is taken out, and rinse the residual viscose glue on surface；B, the filter screen after flushing is put into cleaning device；C, it is that 15% 20% aqueous slkali cleans filter screen to implantation concentration in cleaning device；D, to the acid solution that implantation concentration in cleaning device is 5% 10% clean filter screen again；E, the filter screen taking-up that completion will be cleaned, dry for standby.The present invention is automatically cleaned by cleaning device to filter screen, and cleaning performance is good, cleaning speed is fast, and required manpower is few, convenient and swift efficient.Scavenging period was reduced to 9 12 hours from former 30 36 hours, had greatly saved scavenging period, improve production efficiency.
Description
Technical field
The present invention relates to a kind of KKF filters filter screen maintaining method, and in particular to one kind extension KKF filter filter screen service lifes
Method.
Background technology
Viscose rayon, is to glue fine full name it is divided into viscose filament yarn and short rayon fiber again.Viscous fibre is with cotton or other are natural
Fiber is the cellulose fibre of raw material production.Its moisture percentage best suits the physiological requirement of human body skin, with smooth nice and cool, saturating
Gas, it is antistatic, dye the characteristic such as gorgeous.
In viscose glue preparation process, maturation filtering is indispensable important procedure, and its effect is after yellow is dissolved
Viscose glue dissolving carries out secondary filter, rejects the granule foreign in solution, it is ensured that viscose meets spinning requirement after filter, so as to ensure
Viscose quality and spinning quality.
KKF（Horizontal automatic backwashing filter）It is the main filter plant of the filter progress.KKF filters can realize viscose glue
Full-automatic filter-backwash process, without artificial disassembly, cleaning filter material.KKF filtering materials are technology sintered meshwork, its filtering accuracy
Up to 15~35 μm.In use, KKF filtration systems run a period of time after, the filtration flux caused by filter net jam
It is gradually reduced, filtering function failure is, it is necessary to largely change KKF filter screens.Current KKF need to change once new filter screen at 8-10 month.
Filter screen character of use is single use, will just be changed after a usage cycles, causes filtering cost higher.Therefore, how
Recover old strainer filtering function, extend the service life of filter screen, be the eternal theme for reducing KKF operating costs.
Publication date is 2016.03.02, and notification number is the Chinese invention patent of CN105363280A, discloses a kind of KKF complete
The filter gauze cleaning method of automatic back-washing filter, including the filter screen in filter is taken out, and the residual viscose glue on surface is rinsed, then press
Following step is cleaned：(1) filter screen is cleaned with the NaOH aqueous slkali that concentration is 15%-20% first；(2) concentration is secondly used
For the phosphoric acid solution of 5%-10% cleans filter screen；(3) and then with ultrasonic wave the residue in filter screen is cleaned.The method can be to filter screen
Cleaned, but manually cleaned substantially in cleaning process, scavenging period is oversize, the human cost of consuming is larger.
The content of the invention
It is an object of the present invention to be directed to problems of the prior art, propose that a kind of extension KKF filter filter screens are used
The method in life-span, can automatically clean filter screen, save scavenging period.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of method of extension KKF filter filter screen service lifes, it is characterised in that comprise the following steps：
A, the filter screen in filter is taken out, and rinse the residual viscose glue on surface；
B, the filter screen after flushing is put into cleaning device；
C, to implantation concentration in cleaning device for 15%-20% aqueous slkali clean filter screen；
D, again to implantation concentration in cleaning device for 5%-10% acid solution clean filter screen；
E, the filter screen taking-up that completion will be cleaned, dry for standby.
The cleaning device includes columned washing bucket, and washing bucket includes side wall, preceding bung and rear bung, the side wall
Inner side is provided with the outer hairbrush of multiple, and side wall upper part is provided with water inlet, and bottom is provided with delivery port；The rear bung is solid after including
Price fixing, rear division board and rear bucket wall, are provided with axis in the middle part of bucket wall afterwards, and rear fixed disk is vertical with axis, and rear fixed disk middle part sets
It is equipped with and is fixedly installed the rear trochal disc of annular shape with the equal-sized through hole of the external diameter of axis, rear fixed disk outside, rear trochal disc
Width is provided with water-sealed bearing more than the width of rear fixed disk between rear fixed disk and rear division board, rear division board is consolidated with side wall
Fixed connection；The preceding bung includes preceding fixed disk, preceding division board and preceding bucket wall, and preceding fixed disk outside is fixedly installed annular shape
Preceding wheel disc, the width of preceding wheel disc is provided with water-sealed bearing more than the width of preceding fixed disk between preceding wheel disc and preceding division board, it is preceding every
External diameter from plate is equal with the internal diameter of side wall；The diameter of the preceding fixed disk and rear fixed disk and the equal diameters of filter screen；It is described
Axis one end is fixed on rear bucket wall, and the other end is contacted with preceding fixed disk, and multiple Interior hairbrush are provided with axis.
In the step c, cleaning way is to be injected in washing bucket 15% aqueous slkali by water inlet, rotary sieve four
Hour, cleaning fluid is excluded by delivery port, reinject clear water and rinse 30min.
In the Step d, cleaning way is to be injected in washing bucket 10% acid solution by water inlet, rotary sieve four
Hour, cleaning fluid is excluded by delivery port, reinject clear water and rinse 30min.
In the step e, drying temperature is 50-80 DEG C.
By adopting the above-described technical solution, the beneficial effects of the invention are as follows：
The present invention is automatically cleaned by cleaning device to filter screen, and cleaning performance is good, cleaning speed is fast, and required manpower is few,
It is convenient and swift efficient.Scavenging period was reduced to 9-12 hours from former 30-36 hours, had greatly saved scavenging period, was carried
Production efficiency high.Meanwhile, by the cleaning of filter screen, can recycle filter screen, extend the service life of filter screen.
Brief description of the drawings
Fig. 1 is heretofore described cleaning device structural perspective（Outer hairbrush and Interior hairbrush are not marked）；
Fig. 2 is A-A sectional views in Fig. 1.
Marked in figure：1st, preceding bucket wall, 2, preceding bung, 3, preceding division board, 4, preceding fixed disk, 5, water inlet, 6, rear fixed
Disk, 7, rear bung, 8, rear bucket wall, 9, axis, 10, delivery port, 11, filter screen, 12, preceding wheel disc, 13, water-sealed bearing, 14, after every
From plate, 15, outer hairbrush, 16, Interior hairbrush, 17, side wall, 18, rear trochal disc.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
Embodiment 1
As a kind of preferred embodiment of the invention, present embodiment discloses a kind of side of extension KKF filter filter screen service lifes
Method, the present embodiment includes：
A kind of method of extension KKF filter filter screen service lifes, it is characterised in that comprise the following steps：
A, the filter screen in filter is taken out, and rinse the residual viscose glue on surface；
B, the filter screen after flushing is put into cleaning device；
C, clean filter screen to aqueous slkali that implantation concentration in cleaning device is 15%；
D, to acid solution that implantation concentration in cleaning device is 5% clean filter screen again；
E, the filter screen taking-up that completion will be cleaned, dry for standby.
Embodiment 2
As a kind of preferred embodiment of the invention, with reference to Figure of description 1, present embodiment discloses one kind extension KKF filters
The method of filter screen service life, the present embodiment includes：
A kind of method of extension KKF filter filter screen service lifes, it is characterised in that comprise the following steps：
A, the filter screen in filter is taken out, and rinse the residual viscose glue on surface；
B, the filter screen after flushing is put into cleaning device；
C, clean filter screen to aqueous slkali that implantation concentration in cleaning device is 18%；
D, to acid solution that implantation concentration in cleaning device is 8% clean filter screen again；
E, the filter screen taking-up that completion will be cleaned, dry for standby.
Embodiment 3
As a kind of preferred embodiment of the invention, with reference to Figure of description 1, present embodiment discloses one kind extension KKF filters
The method of filter screen service life, the present embodiment includes：
A kind of method of extension KKF filter filter screen service lifes, it is characterised in that comprise the following steps：
A, the filter screen in filter is taken out, and rinse the residual viscose glue on surface；
B, the filter screen after flushing is put into cleaning device；
C, clean filter screen to aqueous slkali that implantation concentration in cleaning device is 20%；
D, to acid solution that implantation concentration in cleaning device is 10% clean filter screen again；
E, the filter screen taking-up that completion will be cleaned, dry for standby.
Embodiment 4
As a kind of preferred embodiment of the invention, with reference to Figure of description 1 and accompanying drawing 2, present embodiment discloses one kind extension
The method of KKF filter filter screen service lifes, the present embodiment includes：
A kind of method of extension KKF filter filter screen service lifes, it is characterised in that comprise the following steps：
A, the filter screen in filter is taken out, and rinse the residual viscose glue on surface；
B, the filter screen after flushing is put into cleaning device；
In c, the aqueous slkali injection washing bucket by water inlet 5 by 15%, rotary sieve 11 4 hours will be clear by delivery port 10
Washing lotion is excluded, and is reinjected clear water and is rinsed 30min；
In d, the acid solution injection washing bucket by water inlet 5 by 10%, rotary sieve 11 4 hours will be clear by delivery port 10
Washing lotion is excluded, and is reinjected clear water and is rinsed 30min；
E, the filter screen taking-up that completion will be cleaned, dry for standby.
The cleaning device includes columned washing bucket, and washing bucket includes side wall 17, preceding bung 2 and rear bung 7, described
The inner side of side wall 17 is provided with the outer hairbrush 15 of multiple, and the top of side wall 17 is provided with water inlet 5, and bottom is provided with delivery port 10；It is described
Bung 7 includes rear fixed disk 6, rear division board 14 and rear bucket wall 8 afterwards, and the middle part of bucket wall 8 is provided with axis 9 afterwards, and rear fixed disk 6 is with
Axle 9 is vertical, and the middle part of rear fixed disk 6 is provided with and is fixedly installed with the equal-sized through hole of the external diameter of axis, the outside of rear fixed disk 6
Circular rear trochal disc 12, the width of the width more than rear fixed disk 6 of rear trochal disc 12, between rear fixed disk 6 and rear division board 14
Water-sealed bearing 13 is provided with, rear division board 14 is fixedly connected with side wall 17；The preceding bung 2 includes preceding fixed disk 6, preceding division board
14 and preceding bucket wall 1, the outside of preceding fixed disk 4 is fixedly installed the preceding wheel disc 12 of annular shape, and the width of preceding wheel disc 12 is more than preceding fixation
The width of disk 4, is provided with water-sealed bearing 13 between preceding wheel disc 12 and preceding division board 3, the external diameter of preceding division board 3 is interior with side wall 17
Footpath is equal；The diameter of the preceding fixed disk 4 and rear fixed disk 6 and the equal diameters of filter screen 11；After the one end of the axis 9 is fixed on
On bucket wall 8, the other end is contacted with preceding fixed disk 4, and multiple Interior hairbrush 16 are provided with axis 9.
The type of drive of filter screen 11 is to drive rear trochal disc 18 by motor, rotates rear trochal disc 18, after rear trochal disc 18 drives
Fixed disk 6 is rotated, and rear fixed disk 6 is rotated with electric filter 11
In the step e, drying temperature is 50 DEG C.
Whole scavenging period is 9 hours.
Embodiment 5
As a kind of preferred embodiment of the invention, with reference to Figure of description 1 and accompanying drawing 2, present embodiment discloses one kind extension
The method of KKF filter filter screen service lifes, the present embodiment includes：
A kind of method of extension KKF filter filter screen service lifes, it is characterised in that comprise the following steps：
A, the filter screen in filter is taken out, and rinse the residual viscose glue on surface；
B, the filter screen after flushing is put into cleaning device；
In c, the aqueous slkali injection washing bucket by water inlet 5 by 18%, rotary sieve 11 4 hours will be clear by delivery port 10
Washing lotion is excluded, and is reinjected clear water and is rinsed 30min；
In d, the acid solution injection washing bucket by water inlet 5 by 5%, rotary sieve 11 4 hours will be cleaned by delivery port 10
Liquid is excluded, and is reinjected clear water and is rinsed 30min；
E, the filter screen taking-up that completion will be cleaned, dry for standby.
The cleaning device includes columned washing bucket, and washing bucket includes side wall 17, preceding bung 2 and rear bung 7, described
The inner side of side wall 17 is provided with the outer hairbrush 15 of multiple, and the top of side wall 17 is provided with water inlet 5, and bottom is provided with delivery port 10；It is described
Bung 7 includes rear fixed disk 6, rear division board 14 and rear bucket wall 8 afterwards, and the middle part of bucket wall 8 is provided with axis 9 afterwards, and rear fixed disk 6 is with
Axle 9 is vertical, and the middle part of rear fixed disk 6 is provided with and is fixedly installed with the equal-sized through hole of the external diameter of axis, the outside of rear fixed disk 6
Circular rear trochal disc 12, the width of the width more than rear fixed disk 6 of rear trochal disc 12, between rear fixed disk 6 and rear division board 14
Water-sealed bearing 13 is provided with, rear division board 14 is fixedly connected with side wall 17；The preceding bung 2 includes preceding fixed disk 6, preceding division board
14 and preceding bucket wall 1, the outside of preceding fixed disk 4 is fixedly installed the preceding wheel disc 12 of annular shape, and the width of preceding wheel disc 12 is more than preceding fixation
The width of disk 4, is provided with water-sealed bearing 13 between preceding wheel disc 12 and preceding division board 3, the external diameter of preceding division board 3 is interior with side wall 17
Footpath is equal；The diameter of the preceding fixed disk 4 and rear fixed disk 6 and the equal diameters of filter screen 11；After the one end of the axis 9 is fixed on
On bucket wall 8, the other end is contacted with preceding fixed disk 4, and multiple Interior hairbrush 16 are provided with axis 9.The type of drive of filter screen 11 is to lead to
Cross motor and drive rear trochal disc 18, rotate rear trochal disc 18, fixed disk 6 is rotated after rear trochal disc 18 drives, and rear fixed disk 6 is with electric filter
11 rotate.
In the step e, drying temperature is 65 DEG C.
Whole scavenging period is 10 hours.
Embodiment 6
As a kind of preferred embodiment of the invention, with reference to Figure of description 1 and accompanying drawing 2, present embodiment discloses one kind extension
The method of KKF filter filter screen service lifes, the present embodiment includes：
A kind of method of extension KKF filter filter screen service lifes, it is characterised in that comprise the following steps：
A, the filter screen in filter is taken out, and rinse the residual viscose glue on surface；
B, the filter screen after flushing is put into cleaning device；
In c, the aqueous slkali injection washing bucket by water inlet 5 by 20%, rotary sieve 11 4 hours will be clear by delivery port 10
Washing lotion is excluded, and is reinjected clear water and is rinsed 30min；
In d, the acid solution injection washing bucket by water inlet 5 by 8%, rotary sieve 11 4 hours will be cleaned by delivery port 10
Liquid is excluded, and is reinjected clear water and is rinsed 30min；
E, the filter screen taking-up that completion will be cleaned, dry for standby.
The cleaning device includes columned washing bucket, and washing bucket includes side wall 17, preceding bung 2 and rear bung 7, described
The inner side of side wall 17 is provided with the outer hairbrush 15 of multiple, and the top of side wall 17 is provided with water inlet 5, and bottom is provided with delivery port 10；It is described
Bung 7 includes rear fixed disk 6, rear division board 14 and rear bucket wall 8 afterwards, and the middle part of bucket wall 8 is provided with axis 9 afterwards, and rear fixed disk 6 is with
Axle 9 is vertical, and the middle part of rear fixed disk 6 is provided with and is fixedly installed with the equal-sized through hole of the external diameter of axis, the outside of rear fixed disk 6
Circular rear trochal disc 12, the width of the width more than rear fixed disk 6 of rear trochal disc 12, between rear fixed disk 6 and rear division board 14
Water-sealed bearing 13 is provided with, rear division board 14 is fixedly connected with side wall 17；The preceding bung 2 includes preceding fixed disk 6, preceding division board
14 and preceding bucket wall 1, the outside of preceding fixed disk 4 is fixedly installed the preceding wheel disc 12 of annular shape, and the width of preceding wheel disc 12 is more than preceding fixation
The width of disk 4, is provided with water-sealed bearing 13 between preceding wheel disc 12 and preceding division board 3, the external diameter of preceding division board 3 is interior with side wall 17
Footpath is equal；The diameter of the preceding fixed disk 4 and rear fixed disk 6 and the equal diameters of filter screen 11；After the one end of the axis 9 is fixed on
On bucket wall 8, the other end is contacted with preceding fixed disk 4, and multiple Interior hairbrush 16 are provided with axis 9.The type of drive of filter screen 11 is to lead to
Cross motor and drive rear trochal disc 18, rotate rear trochal disc 18, fixed disk 6 is rotated after rear trochal disc 18 drives, and rear fixed disk 6 is with electric filter
11 rotate.
In the step e, drying temperature is 80 DEG C.
Whole scavenging period is 12 hours.
Embodiment described above only expresses the specific embodiment of the application, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the application protection domain can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, on the premise of technical scheme design is not departed from, various modifications and improvements can be made, these belong to this
The protection domain of application.
Claims (5)
1. a kind of method of extension KKF filter filter screen service lifes, it is characterised in that comprise the following steps：
A, the filter screen in filter is taken out, and rinse the residual viscose glue on surface；
B, the filter screen after flushing is put into cleaning device；
C, to implantation concentration in cleaning device for 15%-20% aqueous slkali clean filter screen；
D, again to implantation concentration in cleaning device for 5%-10% acid solution clean filter screen；
E, the filter screen taking-up that completion will be cleaned, dry for standby.
2. the method for a kind of extension KKF filter filter screen service lifes according to claim 1, it is characterised in that：It is described clear
Cleaning device includes columned washing bucket, and washing bucket includes side wall（17）, preceding bung（2）With rear bung（7）, the side wall（17）
Inner side is provided with the outer hairbrush of multiple（15）, side wall（17）Top is provided with water inlet（5）, bottom is provided with delivery port（10）；Institute
State rear bung（7）Including rear fixed disk（6）, rear division board（14）With rear bucket wall（8）, bucket wall afterwards（8）Middle part is provided with axis
（9）, rear fixed disk（6）With axis（9）Vertically, rear fixed disk（6）Middle part be provided with the equal-sized through hole of the external diameter of axis,
Fixed disk afterwards（6）Outside is fixedly installed the rear trochal disc of annular shape（12）, rear trochal disc（12）Width be more than rear fixed disk（6）'s
Width, rear fixed disk（6）With rear division board（14）Between be provided with water-sealed bearing（13）, rear division board（14）With side wall（17）Gu
Fixed connection；The preceding bung（2）Including preceding fixed disk（6）, preceding division board（14）With preceding bucket wall（1）, preceding fixed disk（4）Outside is consolidated
Surely it is provided with the preceding wheel disc of annular shape（12）, preceding wheel disc（12）Width be more than preceding fixed disk（4）Width, preceding wheel disc（12）With
Preceding division board（3）Between be provided with water-sealed bearing（13）, preceding division board（3）External diameter and side wall（17）Internal diameter it is equal；It is described
Preceding fixed disk（4）With rear fixed disk（6）Diameter and filter screen（11）Equal diameters；The axis（9）One end is fixed on rear bucket
Wall（8）On, the other end and preceding fixed disk（4）Contact, axis（9）On be provided with multiple Interior hairbrush（16）.
3. the method for a kind of extension KKF filter filter screen service lifes according to claim 2, it is characterised in that：The c steps
In rapid, cleaning way is, by water inlet（5）15% aqueous slkali is injected in washing bucket, rotary sieve（11）4 hours, pass through
Delivery port（10）Cleaning fluid is excluded, clear water is reinjected and is rinsed 30min.
4. the method for a kind of extension KKF filter filter screen service lifes according to claim 2, it is characterised in that：The d steps
In rapid, cleaning way is, by water inlet（5）10% acid solution is injected in washing bucket, rotary sieve（11）4 hours, pass through
Delivery port（10）Cleaning fluid is excluded, clear water is reinjected and is rinsed 30min.
5. the method for a kind of extension KKF filter filter screen service lifes according to claim 2, it is characterised in that：The e steps
In rapid, drying temperature is 50-80 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710072722.1A CN106823565A (en) | 2017-02-10 | 2017-02-10 | A kind of method of extension KKF filter filter screen service lifes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710072722.1A CN106823565A (en) | 2017-02-10 | 2017-02-10 | A kind of method of extension KKF filter filter screen service lifes |
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| Publication Number | Publication Date |
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| CN106823565A true CN106823565A (en) | 2017-06-13 |
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ID=59122307
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710072722.1A Pending CN106823565A (en) | 2017-02-10 | 2017-02-10 | A kind of method of extension KKF filter filter screen service lifes |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110292809A (en) * | 2019-07-09 | 2019-10-01 | 温岭云歌工艺品有限公司 | A kind of efficient air conditioner filter element cleaning device |
| CN113332771A (en) * | 2021-06-03 | 2021-09-03 | 赛得利(江苏)纤维有限公司 | Method for prolonging service life of KKF filter screen |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2006636A (en) * | 1977-09-16 | 1979-05-10 | Ltg Lufttechnische Gmbh | Filtering apparatus for filtering dust-containing air. |
| CN2124055U (en) * | 1992-04-18 | 1992-12-09 | 李勇 | Liquid microfilter |
| CN201488081U (en) * | 2009-07-01 | 2010-05-26 | 黄家厚 | Oil smoke filtering device |
| CN103055639A (en) * | 2011-10-21 | 2013-04-24 | 李耀强 | Air filter with double self-cleaning devices |
| CN105363280A (en) * | 2015-11-17 | 2016-03-02 | 成都丽雅纤维股份有限公司 | Method for cleaning filter screen of KKF full-automatic backwashing filter |
-
2017
- 2017-02-10 CN CN201710072722.1A patent/CN106823565A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2006636A (en) * | 1977-09-16 | 1979-05-10 | Ltg Lufttechnische Gmbh | Filtering apparatus for filtering dust-containing air. |
| CN2124055U (en) * | 1992-04-18 | 1992-12-09 | 李勇 | Liquid microfilter |
| CN201488081U (en) * | 2009-07-01 | 2010-05-26 | 黄家厚 | Oil smoke filtering device |
| CN103055639A (en) * | 2011-10-21 | 2013-04-24 | 李耀强 | Air filter with double self-cleaning devices |
| CN105363280A (en) * | 2015-11-17 | 2016-03-02 | 成都丽雅纤维股份有限公司 | Method for cleaning filter screen of KKF full-automatic backwashing filter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110292809A (en) * | 2019-07-09 | 2019-10-01 | 温岭云歌工艺品有限公司 | A kind of efficient air conditioner filter element cleaning device |
| CN110292809B (en) * | 2019-07-09 | 2020-03-27 | 温岭云歌工艺品有限公司 | Air conditioner filter element cleaning device |
| CN113332771A (en) * | 2021-06-03 | 2021-09-03 | 赛得利(江苏)纤维有限公司 | Method for prolonging service life of KKF filter screen |
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Application publication date: 20170613 |