CN217491805U - Non-woven filter felt surface cleaning equipment - Google Patents
Non-woven filter felt surface cleaning equipment Download PDFInfo
- Publication number
- CN217491805U CN217491805U CN202221768237.0U CN202221768237U CN217491805U CN 217491805 U CN217491805 U CN 217491805U CN 202221768237 U CN202221768237 U CN 202221768237U CN 217491805 U CN217491805 U CN 217491805U
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- Prior art keywords
- mounting
- dust collecting
- surface cleaning
- felt surface
- filter
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- 238000004140 cleaning Methods 0.000 title claims abstract description 60
- 239000000428 dust Substances 0.000 claims abstract description 69
- 239000004744 fabric Substances 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 25
- 238000007599 discharging Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 5
- 229920000742 Cotton Polymers 0.000 description 27
- 239000012535 impurity Substances 0.000 description 10
- 239000000835 fiber Substances 0.000 description 7
- 238000001914 filtration Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000007790 scraping Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 3
- 210000002489 tectorial membrane Anatomy 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- Preliminary Treatment Of Fibers (AREA)
Abstract
The utility model relates to the technical field of cleaning equipment, in particular to non-woven filter felt surface cleaning equipment, which comprises an installation box body; the cloth feeding guide roller is rotatably arranged at the upper end of the mounting box body; the two cleaning brush rollers are rotatably arranged on the mounting box body below the cloth feeding guide roller; the two dust collecting grooves are fixedly arranged on the mounting box body below the cleaning brush roller, and the two dust collecting grooves are correspondingly arranged below the cleaning brush roller; the cloth outlet guide roller is rotatably arranged on the mounting box body below the dust collecting groove. Use the utility model discloses after the equipment of device, reduce the procedure of artifical clearance, production efficiency is showing and is improving.
Description
Technical Field
The utility model relates to a cleaning equipment technical field especially relates to a non-woven filter felt surface cleaning equipment.
Background
With the improvement of national environmental standards and the increasing prominence of air pollution problems, the industrial field also puts higher requirements on dust removal technology, and national and many local regulations clearly stipulate that unqualified enterprises need to be shut down. The bag type dust removal is the most used dust removal mode at present, and the key material of the bag type dust remover is a filter material, so that the filtering effect of the bag type dust remover directly influences whether the integral discharge reaches the standard or not. In the production process of the filter material, a plurality of cotton fibers and neps and other impurities falling from the needle machine are adhered, star points are scattered on the surface of the felt material, and after the product passes through the oven, part of the impurities can fall on the filter screen in the oven, so that the running resistance of the fan is increased, the heat conduction performance is hindered, and the drying energy consumption is increased. When the filter material is made into a filter bag, neps fall off, so that defects such as spots and the like exist on the surface of a product, and the appearance quality of the product is influenced.
In addition, along with the continuous improvement of environmental protection requirement, the product of filter material tectorial membrane is more and more, and the impurity such as cotton fibre of adhesion and the nep that the needle loom dropped attaches at the filter material surface course, can cause the damaged scheduling problem of membrane when carrying out the tectorial membrane process, seriously influences the quality of tectorial membrane filter material product.
The defects and shortcomings of the prior art are as follows:
in the production process, the air pressure is generally adopted manually to blow, so that impurities such as cotton wool on the surface of the felt material, neps falling from a needle machine and the like are removed, the dust pollution of fibers in the air and on the ground in the production field is serious, the labor and the time are wasted, the production efficiency is reduced, and the production environment is also seriously polluted; manual operation is needed, the working hours are consumed, the cleaning efficiency is low, and the removal rate of impurities on the surface of the felt material is low; the air pressure blowing is carried out to remove impurities on the surface of the felt material, which can cause environmental pollution on the production operation site. Therefore, the development of automatic felt surface cleaning equipment for the filter material production industry is urgently needed.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a non-woven filter felt surface cleaning device.
The utility model provides a following technical scheme:
a non-woven filter felt surface cleaning device comprises
Installing a box body;
the cloth feeding guide roller is rotatably arranged at the upper end of the mounting box body;
the two cleaning brush rollers are rotatably arranged on the mounting box body below the cloth feeding guide roller;
the two dust collecting grooves are fixedly arranged on the mounting box body below the cleaning brush roller and are correspondingly arranged below the cleaning brush roller;
and the cloth outlet guide roller is rotatably arranged on the installation box body below the dust collecting groove.
As a preferable technical scheme of the non-woven filter felt surface cleaning device, a plurality of scraping blades are circumferentially arrayed on the cleaning brush roll.
As a preferable technical scheme of the non-woven filter felt surface cleaning equipment, the lower part of the dust collecting groove is connected to an air extractor through a dust collecting pipe.
As a preferred technical scheme of the non-woven filter felt surface cleaning device, the two cleaning brush rollers are distributed in a vertically staggered mode.
As a preferred technical scheme of the non-woven filter felt surface cleaning equipment, a filtering device is arranged between the dust suction pipe and the dust collection groove.
As a preferred technical scheme of the non-woven filter felt surface cleaning device, the filter device comprises a connecting passage, splicing pipes, a rotating shaft, blades, brushes, a filter plate and a mounting frame, a connecting pipe communicated with the lower part of the dust collecting groove is arranged at the lower part of the dust collecting groove, the connecting passage is connected with the dust collecting pipe through the connecting passage, the connecting passage is provided with an arc-shaped open slot, the splicing pipe is detachably arranged on the connecting passage, and covers the open slot, one end of the splicing pipe is fixedly connected with the mounting frame, the other end of the filter plate is fixedly connected with the filter plate, a rotatable rotating shaft is arranged between the filter plate and the mounting frame, a plurality of blades are circumferentially arrayed on the rotating shaft, the rotating shaft is close to one end of the filter plate, a plurality of brushes are circumferentially arrayed, and brush wires of the brushes are in contact with the filter plate.
As a non-woven filter felt surface cleaning equipment's preferred technical scheme, the installation frame is the round frame shape, and it includes frame, connecting rod and installation department, the installation department is through a plurality of the connecting rod is installed in the frame, dispose the through hole in the installation department.
As a non-woven filter felt surface cleaning equipment's preferred technical scheme, the pivot is including installation axle, neck and toper portion, the installation department passes through the neck connect in toper portion, the cross-sectional diameter of neck is less than the cross-sectional diameter of installation axle, just the cross-sectional diameter of neck equals the diameter of through hole.
As an optimal technical scheme of non-woven filter felt surface cleaning equipment, grooved both ends are equipped with first mounting panel, the both ends of splicing pipe are equipped with the second mounting panel, be equipped with first connecting hole on the first mounting panel, be equipped with the second connecting hole on the second mounting panel, first mounting panel through two at least locking bolt lock in the second mounting panel.
As a preferred technical scheme of the non-woven filter felt surface cleaning equipment, one end of the connecting passage is connected with the connecting pipe in a threaded mode, and the dust suction pipe is a rubber pipeline and covers the other end of the connecting passage.
The utility model has the advantages that:
1. after equipment operation, through a many months in-service use, the surface of felt reaches clean effect completely, felt outward appearance fault reduces, the quality promotes, after the surface cleaning of felt, the cotton fibre in the oven has also significantly reduced, filter screen in the oven does not have blockking of cotton fibre, the running resistance of fan reduces, heat conductivity is more smooth, also play the effect of practicing thrift the energy consumption simultaneously, after the surface cleaning of felt, during felt impregnation, play certain effect to the cleanness of sizing material and gumming roller, help the saving of sizing material, after the use equipment, reduce artifical program of clearing up, production efficiency is showing and is improving.
2. The blades are circumferentially arrayed on the rotating shaft, the rotating shaft is close to one end of the filter plate, the brushes are circumferentially arrayed on the rotating shaft, and the brush wires of the brushes are in contact with the filter plate. The air in the dust collecting groove is pumped out through the air pump, so that negative pressure is formed in the dust collecting groove, the scraped cotton fibers and cotton neps are accumulated in the dust collecting groove, a plurality of cotton fibers and cotton neps are blocked in the dust collecting groove through the filter plate, however, filter holes in the filter plate can be blocked, the air in the dust collecting groove is pumped out through the dust suction pipe, the air can drive blades in the connecting passage to rotate, the rotating shaft is driven to rotate through the band-pass brush, accumulated objects in the filter holes in the filter plate can be cleaned, the number of filter holes blocked by the cotton fibers and the cotton neps is reduced, and the stability of the device is improved;
drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic perspective view of the device of the present invention;
fig. 2 is a schematic diagram of the two-dimensional structure of the device of the present invention;
FIG. 3 is a schematic view of the structure of the cleaning brush roller;
FIG. 4 is a schematic view of the structure of the dust collecting tank;
FIG. 5 is a schematic view of the structure of the filter device;
FIG. 6 is a schematic cross-sectional view of A-A of FIG. 4;
FIG. 7 is a schematic structural view of a filter plate;
FIG. 8 is a schematic view of a mounting frame;
FIG. 9 is a schematic view of the structure of the rotating shaft;
labeled as: 1. installing a box body; 2. a cloth feeding guide roller; 3. cleaning the brush roll; 4. a dust collecting groove; 5. a cloth discharging guide roller; 6. scraping a blade; 7. a dust collection pipe; 8. a connection path; 9. splicing the tubes; 10. a rotating shaft; 11. a blade; 12. a brush; 13. a filter plate; 14. a mounting frame; 15. grooving; 16. a first mounting plate; 17. a second mounting plate;
100. installing a shaft; 101. a neck portion; 102. a tapered portion;
141. an outer frame; 142. a connecting rod; 143. an installation part; 144. a through hole;
Detailed Description
The conception, specific structure and technical effects of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, so as to fully understand the objects, aspects and effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, the description of the upper, lower, left, right, etc. used in the present invention is only relative to the mutual positional relationship of the components of the present invention in the accompanying drawings.
As shown in FIGS. 1 to 9, a nonwoven filter felt surface cleaning apparatus comprises
The installation box body 1 is of a square structure, one side of the installation box body is provided with a cabinet door which can be opened and closed, and impurities are prevented from flying out of the external environment when the equipment runs. The opened and closed cabinet door is convenient for regular cleaning and maintenance of the brush roller;
the cloth feeding guide roller 2 is rotatably arranged at the upper end of the mounting box body 1, and the felt material enters the inside of the cleaning machine through the cloth feeding guide roller 2;
the two cleaning brush rollers 3 are rotatably arranged on the mounting box body 1 below the cloth feeding guide roller 2, the felt is positioned between the two cleaning brush rollers 3, and impurities such as cotton wool and cotton neps on the surface of the felt are cleaned through the cleaning brush rollers 3;
the two dust collecting grooves 4 are fixedly arranged on the mounting box body 1 below the cleaning brush roller 3, the two dust collecting grooves 4 are correspondingly arranged below the cleaning brush roller 3, and the cleaned cotton wool and cotton neps are collected into the corresponding dust collecting grooves 4;
the cloth outlet guide roller 5 is rotatably arranged on the installation box body 1 below the dust collecting groove 4; after the felt material is cleaned, the felt material is discharged from the cleaning machine through a cloth discharging guide roller 5.
The cleaning brush roll 3 is circumferentially arrayed with a plurality of scraping pieces 6, and the cleaning brush roll 3 rotates to drive the scraping pieces 6 to rotate, so that cotton wool and cotton neps on the front surface and the back surface of the felt material are scraped and collected in the dust collecting groove 4 below. The two cleaning brush rollers 3 are distributed in a vertically staggered mode, if the two cleaning brush rollers 3 are parallel and level, the front and back sides of the felt can be simultaneously brushed to damage the surface of the felt, after dislocation, the felt has a radian, and damage of the scraping blade 6 to the surface layer of the felt is reduced.
The lower part of the dust collecting groove 4 is connected with an air extractor through a dust collecting pipe 7, negative pressure is formed in the dust collecting groove 4 through the air extractor, cotton wool and cotton neps scraped from the upper part can be rapidly adsorbed into the dust collecting groove 4, and the cotton wool and the cotton neps can be deposited in the dust collecting pipe 7 along with the increase of time, so that blockage is caused.
A filtering device is arranged between the dust suction pipe 7 and the dust collection groove 4, and cotton wool and cotton neps are filtered between the dust suction pipe 7 and the dust collection groove 4 through the filtering device to prevent the dust suction pipe 7 from being blocked.
The filter device comprises a connecting passage 8, a splicing pipe 9, a rotating shaft 10, vanes 11, a brush 12, a filter plate 13 and a mounting frame 14, a connecting pipe communicated with the lower part of the dust collecting groove 4 is arranged at the lower part of the dust collecting groove, the connecting passage 8 is connected with the dust collecting pipe 7 through the connecting passage 8, an arc-shaped slot 15 is arranged on the connecting passage 8, the splicing pipe 9 is detachably arranged on the connecting passage 8, and covers the slot 15, one end of the splicing tube 9 is fixedly connected with the mounting frame 14, the other end of the filter plate is fixedly connected with the filter plate 13, the rotatable rotating shaft 10 is arranged between the filter plate 13 and the mounting frame 14, a plurality of blades 11 are circumferentially arrayed on the rotating shaft 10, a plurality of brushes 12 are circumferentially arrayed at one end of the rotating shaft 10 close to the filter plate 13, and the brush wires of the brushes 12 are in contact with the filter plate 13. Gas in the dust collecting tank 4 is pumped out through the air pump, thereby form the negative pressure in the dust collecting tank 4, therefore, the cotton fibre of scraping, the nep is piled up in the dust collecting tank 4, through filter 13 with a plurality of cotton fibres, the nep blocks in the dust collecting tank 4, however, also can cause the filtration pore in the filter 13 to be stopped up, gas in the dust collecting tank 4 is pumped out through the dust absorption pipe 7, gas can drive the blade 11 in the connecting passage 8 and rotate, thereby drive the pivot 10 and rotate, through the rotation of pivot 10 band-pass brush 12, thereby can clean the deposit in the filtration pore on the filter 13, reduce the cotton fibre, the nep blocks up the quantity of filtration pore, improve the device's stability. The splicing pipe 9 can be spliced and installed on the groove 15 of the connecting passage 8, an operator can detach the filter plate 13 at any time according to actual conditions, once the filter plate 13 is blocked, the dust collecting groove 4 cannot form negative pressure, the operator detaches the filter plate 13, the blockage in the filter hole is cleaned, and the filter plate continues to be installed in the connecting passage 8, so that the practicability of the device is improved.
The mounting frame 14 is in a circular frame shape, and includes an outer frame 141, a plurality of connecting rods 142, and a mounting portion 143, wherein the mounting portion 143 is mounted in the outer frame 141 through the plurality of connecting rods 142, and a through hole 144 is disposed in the mounting portion 143. The pivot 10 includes installation axle 100, neck 101 and toper portion 102, the installation department 143 passes through neck 101 connect in toper portion 102, the cross-sectional diameter of neck 101 is less than the cross-sectional diameter of installation axle 100, just the cross-sectional diameter of neck 101 equals the diameter of through-hole 144. The tapered portion 102 of the shaft 10 is designed to be inserted into the through hole 144, so that the neck 101 fits into the through hole 144, and the shaft 10 can be rotated on the mounting portion 143.
Slotted 15's both ends are equipped with first mounting panel 16, splicing pipe 9's both ends are equipped with second mounting panel 17, be equipped with first connecting hole on the first mounting panel 16, be equipped with the second connecting hole on the second mounting panel 17, first mounting panel 16 through two at least locking bolt lock in second mounting panel 17. The connecting channel 8 is closed at the slot 15 by the splicing tube 9, and the first mounting plate 16 and the second mounting plate 17 are locked by the locking bolt.
One end of the connecting passage 8 is connected with the connecting pipe through a thread, and the dust collection pipe 7 is a rubber pipeline and is coated at the other end of the connecting passage 8.
The utility model discloses the application method of device:
the utility model discloses felt material surface cleaning equipment is used for felt material aftertreatment process, place before flooding and drying process, the felt material unreels the back, through 2 entering equipment of entering cloth deflector roll, in the middle of two clean brush rolls 3, 6 scrapers of brush roll surface connection clear up the felt material positive and negative, impurities such as felt material surface cotton fibre, nep are cleared up and are dropped in dust collecting tank 4 of brush roll below, the felt material passes behind the brush roll in the middle of two dust collecting tank 4, the fabric guide roller of following equipment below again goes out equipment, get into one process down.
After the device is operated, the brush roller rotates to clean the front and back sides of the felt, and impurities falling into the dust collection groove 4 are sucked away through the dust collection pipe 7.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A non-woven filter felt surface cleaning device is characterized by comprising
Installing a box body (1);
the cloth feeding guide roller (2) is rotatably arranged at the upper end of the mounting box body (1);
the two cleaning brush rollers (3) are rotatably arranged on the mounting box body (1) below the cloth feeding guide roller (2);
the two dust collecting grooves (4) are fixedly arranged on the mounting box body (1) below the cleaning brush roller (3), and the two dust collecting grooves (4) are correspondingly arranged below the cleaning brush roller (3);
the cloth discharging guide roller (5) is rotatably arranged below the dust collecting groove (4) on the installation box body (1).
2. The nonwoven filter felt surface cleaning apparatus according to claim 1, characterized in that the cleaning brush roll (3) is circumferentially arrayed with a plurality of blades (6).
3. The nonwoven filter felt surface cleaning apparatus according to claim 1, characterized in that the lower part of the dust collecting channel (4) is connected to an air extractor by means of a dust suction pipe (7).
4. The non-woven filter felt surface cleaning device according to claim 1, wherein the two cleaning brush rolls (3) are arranged in a vertically offset manner.
5. Non-woven filter felt surface cleaning apparatus according to claim 3, wherein a filter device is mounted between the dust suction pipe (7) and the dust collecting channel (4).
6. The nonwoven filter felt surface cleaning apparatus according to claim 5, wherein the filter device comprises a connecting passage (8), a splicing pipe (9), a rotating shaft (10), blades (11), brushes (12), a filter plate (13) and a mounting frame (14), the lower part of the dust collecting tank (4) is provided with a connecting pipe communicated with the dust collecting tank, the connecting passage (8) is connected to the dust collecting pipe (7) through the connecting passage (8), the connecting passage (8) is provided with an arc-shaped slot (15), the splicing pipe (9) is detachably mounted on the connecting passage (8) and covers the slot (15), one end of the splicing pipe (9) is fixedly connected with the mounting frame (14) and the other end thereof is fixedly connected with the filter plate (13), the rotating shaft (10) is rotatably arranged between the filter plate (13) and the mounting frame (14), a plurality of blade (11) circumference array is in on pivot (10), be close to in pivot (10) one end circumference array of filter plate (13) is a plurality of brush (12), the brush silk of brush (12) with filter plate (13) contact.
7. The nonwoven filter felt surface cleaning apparatus according to claim 6, wherein the mounting frame (14) box is in a shape of a round frame and comprises an outer frame (141), a connecting rod (142) and a mounting portion (143), the mounting portion (143) is mounted in the outer frame (141) through a plurality of the connecting rods (142), and a through hole (144) is provided in the mounting portion (143).
8. The nonwoven filter felt surface cleaning apparatus according to claim 7, wherein the rotating shaft (10) comprises a mounting shaft (100), a neck portion (101) and a tapered portion (102), the mounting portion (143) is connected to the tapered portion (102) through the neck portion (101), the neck portion (101) has a cross-sectional diameter smaller than that of the mounting shaft (100), and the neck portion (101) has a cross-sectional diameter equal to that of the through-hole (144).
9. The non-woven filter felt surface cleaning device according to claim 8, wherein a first mounting plate (16) is provided at both ends of the slot (15), a second mounting plate (17) is provided at both ends of the splicing tube (9), a first connection hole is provided on the first mounting plate (16), a second connection hole is provided on the second mounting plate (17), and the first mounting plate (16) is locked to the second mounting plate (17) by at least two locking bolts.
10. The nonwoven filter felt surface cleaning apparatus according to claim 6, wherein one end of the connecting passage (8) is threaded to the connecting pipe, and the dust suction pipe (7) is a pipe of a rubber material and covers the other end of the connecting passage (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221768237.0U CN217491805U (en) | 2022-07-08 | 2022-07-08 | Non-woven filter felt surface cleaning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221768237.0U CN217491805U (en) | 2022-07-08 | 2022-07-08 | Non-woven filter felt surface cleaning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217491805U true CN217491805U (en) | 2022-09-27 |
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ID=83340368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221768237.0U Active CN217491805U (en) | 2022-07-08 | 2022-07-08 | Non-woven filter felt surface cleaning equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN217491805U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115069618A (en) * | 2022-07-08 | 2022-09-20 | 南京际华三五二一环保科技有限公司 | Non-woven filter felt surface cleaning equipment and using method thereof |
-
2022
- 2022-07-08 CN CN202221768237.0U patent/CN217491805U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115069618A (en) * | 2022-07-08 | 2022-09-20 | 南京际华三五二一环保科技有限公司 | Non-woven filter felt surface cleaning equipment and using method thereof |
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