CN113546939A - A dust collector for concentrated feed production line - Google Patents
A dust collector for concentrated feed production line Download PDFInfo
- Publication number
- CN113546939A CN113546939A CN202110964484.1A CN202110964484A CN113546939A CN 113546939 A CN113546939 A CN 113546939A CN 202110964484 A CN202110964484 A CN 202110964484A CN 113546939 A CN113546939 A CN 113546939A
- Authority
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- China
- Prior art keywords
- plate
- dust
- side plate
- production line
- supporting steel
- 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
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- 239000000428 dust Substances 0.000 title claims abstract description 99
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 238000004140 cleaning Methods 0.000 claims abstract description 13
- 210000001503 joint Anatomy 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000000605 extraction Methods 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 9
- 239000000654 additive Substances 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract 2
- 241001465754 Metazoa Species 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 244000144972 livestock Species 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 101100408352 Drosophila melanogaster Plc21C gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 210000002257 embryonic structure Anatomy 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N17/00—Apparatus specially adapted for preparing animal feeding-stuffs
-
- 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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B08B1/143—
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- B08B1/30—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
Abstract
The invention discloses a dust removal device for a concentrated feed production line, which comprises production line equipment and a dust removal type base plate device arranged below the production line equipment, wherein the dust removal type base plate device consists of a supporting steel plate, a dust collection plate, a guide side plate, a dust collection mechanism, a dust extraction mechanism and a dust collection box, a plurality of groups of leakage holes are uniformly formed in the surface of the supporting steel plate, cover plates are formed at two ends of the supporting steel plate in a machining mode, the dust collection plate is positioned right below the supporting steel plate, a containing groove is formed in the inner portion of the dust collection plate in a machining mode, the guide side plate comprises a first side plate and a second side plate which are symmetrically arranged, the first side plate and the second side plate are arranged in an inclined mode, and a guide rail is welded between the upper ends of the first side plate and the second side plate. According to the invention, a special dust-removing type base plate device is designed below the concentrated feed production line, so that scattered raw materials, additives and dust can be stored, scattered materials can be transferred and concentrated through an internal sliding cleaning mechanism, and the scattered materials can be stored and stored in a concentrated manner through the extraction mechanisms at two ends, so that the cleaning effect of the device is improved.
Description
Technical Field
The invention relates to the technical field of feed production lines, in particular to a dust removal device for a concentrated feed production line.
Background
Production feed, in contrast to "maintenance feed", refers to feed which is required for animals to grow, reproduce and produce various animal products, or for work, on the basis of satisfying the nutrients required for the animals to maintain life. Including the growth and development of livestock embryos and young animals, the production of fats, meats, milks, eggs, hair and other animal products by adult livestock, and the feeding of work animals to work. The types and the amount of the required nutrient substances of livestock of different types, varieties, ages, growth periods and different purposes are different. Therefore, the production performance of the livestock can be fully exerted only by correctly preparing the production feed according to the characteristics of the growth and development or production needs of various livestock, and a better economic effect is obtained.
However, the existing concentrated feed production line has the following problems in the use process: (1) the concentrated feed production line comprises a large number of devices, each group of devices is easy to spill raw materials and additives in the process of transferring after processing, so that pollution is caused, and a whole set of device special for treating raw material additives, particles and dust in production is lacked; (2) the existing production line for concentrated feed is mainly cleaned manually, and the automation degree is low. For this reason, a corresponding technical scheme needs to be designed to solve the existing technical problems.
Disclosure of Invention
The invention aims to provide a dust removal device for a concentrated feed production line, which solves the technical problems that the concentrated feed production line comprises a large amount of devices, raw materials and additives are easy to spill in the transferring process after the devices are processed, so that pollution is caused, and a whole set of device special for treating raw material additives, particles and dust in production is lacked.
In order to achieve the purpose, the invention provides the following technical scheme: a dust removal device for a concentrated feed production line comprises production line equipment and a dust removal type base plate device arranged below the production line equipment, wherein the dust removal type base plate device consists of a supporting steel plate, a dust collecting plate, a guiding side plate, a dust collecting mechanism, a dust pumping mechanism and a dust collecting box, a plurality of groups of leakage holes are uniformly formed in the surface of the supporting steel plate, cover plates are formed at two ends of the supporting steel plate in a processing mode, the dust collecting plate is positioned under the supporting steel plate, a containing groove is formed in the inner portion of the dust collecting plate in a processing mode, the guiding side plate comprises a first side plate and a second side plate which are symmetrically arranged, the first side plate and the second side plate are obliquely arranged, a guide rail is welded between the upper end of the first side plate and the second side plate, a plurality of groups of clamping teeth are uniformly formed in the surface of the guide rail, a guide groove is formed at the lower ends of the first side plate and the second side plate and a sliding block which is symmetrically arranged and is fixed at the bottom of the main plate, the utility model discloses a dust collection box, including mainboard, drive gear, drive motor, PLC controller, draw dust mechanism, installing port, slide block, V type groove has been seted up to the below of mainboard, the installing port has been seted up at the top in V type groove, be provided with drive gear and driving motor in the installing port, driving motor's power take off end is connected with drive gear and the electricity is connected with the PLC controller, the PLC controller is installed on the lateral wall of collection dust board, drive gear is connected with the latch meshing, the slider slides and sets up in the guide way, two sets of mouths of taking out have all been seted up to the both ends symmetry of collection dust board, the outside of taking out the mouth is connected with the dust extraction mechanism, the dust extraction mechanism branch is equipped with two sets ofly and installs in the dust collection box, and is two sets of the top of dust collection box is laminated mutually with the apron.
As a preferred embodiment of the present invention, the edge of the supporting steel plate is uniformly provided with a plurality of pairs of fitting through-holes, the edge of the dust collecting plate is uniformly welded with a plurality of pairs of fitting rods used for fitting the fitting through-holes, and the fitting rods are inserted into the fitting through-holes.
In a preferred embodiment of the present invention, a support plate is welded to the middle of the support steel plate, and the support plate corresponds to the lower guide rail.
In a preferred embodiment of the invention, the inner wall of the V-shaped groove is wrapped with a sponge cleaning pad, and the sponge cleaning pad is in contact with the first side plate and the second side plate on the inner side.
As a preferred embodiment of the present invention, the side wall of the main plate is in contact with the inner side wall of the accommodating groove, the top of the main plate is in a horizontal structure, and the top of the main plate and the guide rail are in the same horizontal plane.
As a preferred embodiment of the present invention, the dust exhaust mechanism includes an exhaust fan and an exhaust pipe installed at an air inlet end of the exhaust fan, the exhaust pipe is connected to an air pipe, and two ends of the air pipe are connected to the exhaust opening.
In a preferred embodiment of the present invention, the bottom of the exhaust fan is mounted on an inner wall of a dust box, one side of the dust box is provided with an exhaust port, a filter screen is disposed in the exhaust port, and the filter screen is in a porous structure.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, a special dust-removing type base plate device is designed below the concentrated feed production line, so that scattered raw materials, additives and dust can be stored, scattered materials can be transferred and concentrated through an internal sliding cleaning mechanism, and the scattered materials can be stored and stored in a concentrated manner through the extraction mechanisms at two ends, so that the cleaning effect of the device is improved.
2. The dust type backing plate device of this scheme design need not the people and operates, and whole clean process adopts automated processing's mode, through the operation of PLC controller control, reaches real-time clean purpose.
Drawings
FIG. 1 is a schematic illustration of the present invention in position;
FIG. 2 is a structural view of a support steel plate according to the present invention;
FIG. 3 is a view of the construction of the dust plate of the present invention;
fig. 4 is a structural view of the dust collecting mechanism of the present invention.
In the figure, 1, supporting steel plates; 2. a dust collecting plate; 3. a guide side plate; 4. a dust collecting mechanism; 5. a dust pumping mechanism; 6. a dust collection box; 7. a leak hole; 8. a cover plate; 9. accommodating grooves; 10. a first side plate; 11. a second side plate; 12. a guide rail; 13. clamping teeth; 14. a guide groove; 15. a main board; 16. a slider; 17. a V-shaped groove; 18. an installation port; 19. a drive gear; 20. a drive motor; 21. a PLC controller; 22. drawing the opening; 23. butting the through openings; 24. a docking rod; 25. a support plate; 26. a sponge cleaning pad; 27. an exhaust fan; 28. an air exhaust pipe; 29. a gas delivery pipe; 30. an exhaust port; 31. and (5) filtering by using a filter screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a dust removal device for a concentrated feed production line comprises production line equipment and a dust removal type base plate device arranged below the production line equipment, wherein the dust removal type base plate device consists of a supporting steel plate 1, a dust collecting plate 2, a guide side plate 3, a dust collecting mechanism 4, a dust pumping mechanism 5 and a dust collecting box 6, a plurality of groups of leak holes 7 are uniformly formed in the surface of the supporting steel plate 1, cover plates 8 are formed at two ends of the supporting steel plate, a containing groove 9 is formed in the supporting steel plate 2 under the supporting steel plate 1 in a processing manner, the guide side plate 3 comprises a first side plate 10 and a second side plate 11 which are symmetrically arranged, the first side plate 10 and the second side plate 11 are obliquely arranged, a guide rail 12 is welded between the upper ends of the first side plate and the second side plate 11, a plurality of groups of latch teeth 13 are uniformly formed on the surface of the guide rail 12, a guide groove 14 is formed at the lower end of the first side plate 10 and the corner of the containing groove 9, the dust collecting mechanism 4 is movably arranged on the surface of the guide side plate 3 and comprises a main plate 15 and two groups of sliders 16 which are symmetrically arranged at the bottom of the main plate 15, v type groove 17 has been seted up to mainboard 15's below, installing port 18 has been seted up at V type groove 17's top, be provided with drive gear 19 and driving motor 20 in the installing port 18, driving motor 20's power take off end is connected and the electricity is connected with PLC controller 21 with drive gear 19, PLC controller 21 installs on the lateral wall of dust collection plate 2, drive gear 19 is connected with latch 13 meshing, slider 16 slides and sets up in guide way 14, two sets of mouths 22 of taking out have all been seted up to the equal symmetry in both ends of dust collection plate 2, the outside of taking out mouth 22 is connected with dust extraction mechanism 5, dust extraction mechanism 5 divides to be equipped with two sets ofly and installs in dust collection box 6, the top of two sets of dust collection boxes 6 is laminated with apron 8 mutually.
Further improved, as shown in fig. 2 and 3: the edge of the supporting steel plate 1 is uniformly provided with a plurality of groups of butt joint penetrating openings 23, the edge of the dust collecting plate 2 is uniformly welded with a plurality of groups of butt joint rods 24 which are matched with the butt joint penetrating openings 23 for use, and the butt joint rods 24 are inserted into the butt joint penetrating openings 23 so as to be convenient for dismounting the supporting steel plate 1 and the dust collecting plate 2.
Further improved, as shown in fig. 2: the middle part of the supporting steel plate 1 is welded with a supporting plate 25, and the supporting plate 25 corresponds to the lower guide rail 12, so that dust and debris are prevented from falling into the guide rail 12.
Further improved, as shown in fig. 3 and 4: the inner wall of the V-shaped groove 17 is wrapped with a sponge cleaning pad 26, the sponge cleaning pad 26 is in contact with the first side plate 10 and the second side plate 11 on the inner side, and the sponge cleaning pad 26 can clean dust on the first side plate 10 and the second side plate 11.
In a further improvement, as shown in fig. 3: the lateral wall of mainboard 15 contacts and the top is the level column structure with the inside wall of holding tank 9, and the top of mainboard 15 is in same horizontal plane with guide rail 12.
In a further improvement, as shown in fig. 3: the dust extraction mechanism 5 comprises an exhaust fan 27 and an extraction pipe 28 arranged at the air inlet end of the exhaust fan 27, the extraction pipe 28 is connected with an air pipe 29, two ends of the air pipe 29 are connected with the extraction opening 22, and dust collected at two ends of the accommodating groove 9 can be extracted through the exhaust fan 27.
Specifically, the bottom of the exhaust fan 27 is mounted on the inner wall of the dust collecting box 6, an exhaust port 30 is opened at one side of the dust collecting box 6, a filter screen 31 is disposed in the exhaust port 30, the filter screen 31 is in a porous structure, and an air conveying pipeline can be mounted at the exhaust port 30 and the dust inside can be filtered through the filter screen 31.
When in use: in the processing process of the production line equipment, scattered materials among the equipment are transferred and enter the containing groove 9 through the lower leakage hole 7, the scattered materials and dust are guided to two sides through the first side plate 10 and the second side plate 11, then the PLC 21 controls the driving motor 20 to work, the driving motor 20 drives the driving gear 19 to rotate, the driving gear 19 moves left and right along the guide rail 12, so that the materials and dust in the containing groove 9 are concentrated to two ends through the main board 15 and the sponge cleaning pad 26, the materials and dust are pumped into the dust collection box 6 through the exhaust fan 27, the materials and dust are blocked by the filter screen 31 and go out, and the internal air flow is exhausted, and the aim of automatically dedusting the concentrated feed production line can be achieved through the mode.
Finally, it should be noted that: 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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. 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 (7)
1. The utility model provides a dust collector for concentrated feed production line, includes production line equipment and installs the dust type backing plate device in production line equipment below, its characterized in that: the dust removal type base plate device is composed of a supporting steel plate (1), a dust collecting plate (2), a guiding side plate (3), a dust collecting mechanism (4), a dust pumping mechanism (5) and a dust collecting box (6), wherein a plurality of groups of leakage holes (7) are uniformly formed in the surface of the supporting steel plate (1), cover plates (8) are formed at two ends of the supporting steel plate, a containing groove (9) is formed in the dust collecting plate (2) under the supporting steel plate (1) and in the dust collecting plate, the guiding side plate (3) comprises a first side plate (10) and a second side plate (11) which are symmetrically arranged, the first side plate (10) and the second side plate (11) are both obliquely arranged, a guide rail (12) is welded between the upper ends of the first side plate (10) and the second side plate (11), a plurality of groups of clamping teeth (13) are uniformly formed on the surface of the guide rail (12), and a guide groove (14) is formed at the lower end of the first side plate (10) and the containing groove (9), the dust collecting mechanism (4) is movably mounted on the surface of the guide side plate (3) and comprises a main plate (15) and two groups of symmetrically-arranged sliding blocks (16) fixed to the bottom of the main plate (15), a V-shaped groove (17) is formed below the main plate (15), a mounting opening (18) is formed in the top of the V-shaped groove (17), a driving gear (19) and a driving motor (20) are arranged in the mounting opening (18), the power output end of the driving motor (20) is connected with the driving gear (19) and electrically connected with a PLC (21), the PLC (21) is mounted on the side wall of the dust collecting plate (2), the driving gear (19) is meshed with the latch (13), the sliding blocks (16) are slidably arranged in the guide groove (14), two groups of pumping openings (22) are symmetrically formed in two ends of the dust collecting plate (2), and the outer side of the pumping openings (22) is connected with the dust pumping mechanism (5), the dust pumping mechanisms (5) are divided into two groups and are arranged in the dust collection boxes (6), and the tops of the two groups of dust collection boxes (6) are attached to the cover plate (8).
2. The dust removing device for the concentrated feed production line according to claim 1, wherein: the edge of the supporting steel plate (1) is uniformly provided with a plurality of groups of butt joint penetrating openings (23), the edge of the dust collecting plate (2) is uniformly welded with a plurality of groups of butt joint rods (24) matched with the butt joint penetrating openings (23) for use, and the butt joint rods (24) are inserted into the butt joint penetrating openings (23).
3. The dust removing device for the concentrated feed production line according to claim 2, wherein: the middle part of the supporting steel plate (1) is welded with a supporting plate (25), and the supporting plate (25) corresponds to the lower guide rail (12).
4. The dust removing device for the concentrated feed production line according to claim 1, wherein: the inner wall of the V-shaped groove (17) is wrapped with a sponge cleaning pad (26), and the sponge cleaning pad (26) is in contact with the first side plate (10) and the second side plate (11) on the inner side.
5. A dust removing apparatus for a concentrated feed production line according to claim 3, wherein: the lateral wall of mainboard (15) contacts and the top is the level column structure with the inside wall of holding tank (9), the top and guide rail (12) of mainboard (15) are in on the same horizontal plane.
6. The dust removing device for the concentrated feed production line according to claim 1, wherein: the dust pumping mechanism (5) comprises an exhaust fan (27) and an exhaust pipe (28) installed at the air inlet end of the exhaust fan (27), the exhaust pipe (28) is connected with an air conveying pipe (29), and two ends of the air conveying pipe (29) are connected with a pumping port (22).
7. The dust removing device for the concentrated feed production line according to claim 6, wherein: the bottom of the exhaust fan (27) is installed on the inner wall of the dust collection box (6), an exhaust port (30) is formed in one side of the dust collection box (6), a filter screen (31) is arranged in the exhaust port (30), and the filter screen (31) is of a porous structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110964484.1A CN113546939A (en) | 2021-08-22 | 2021-08-22 | A dust collector for concentrated feed production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110964484.1A CN113546939A (en) | 2021-08-22 | 2021-08-22 | A dust collector for concentrated feed production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113546939A true CN113546939A (en) | 2021-10-26 |
Family
ID=78105868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110964484.1A Pending CN113546939A (en) | 2021-08-22 | 2021-08-22 | A dust collector for concentrated feed production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113546939A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002066221A (en) * | 2000-09-01 | 2002-03-05 | Maezawa Ind Inc | Dust removing apparatus and dust removing machine equipped with the apparatus |
| CN206746173U (en) * | 2017-05-16 | 2017-12-15 | 福建弘高石粉综合利用有限公司 | A kind of workshop dust collector |
| CN206937101U (en) * | 2017-05-31 | 2018-01-30 | 温州市骐邦环保科技有限公司 | A kind of Environmental-protecting dust-removing operating desk in workshop of polishing |
| CN108584023A (en) * | 2018-04-24 | 2018-09-28 | 苏州高新区鼎正精密机电有限公司 | A kind of medical packaging production line Superficial Foreign Body remove device |
| CN111925832A (en) * | 2020-06-24 | 2020-11-13 | 福建省气柜设备安装有限公司 | Electrostatic gas cooling, oil removing and dust removing device |
| CN112570323A (en) * | 2020-12-01 | 2021-03-30 | 贵州黔程慧通科技发展有限责任公司 | Intelligent dustproof control cabinet |
| CN213864181U (en) * | 2020-11-16 | 2021-08-03 | 张蕊 | Antibacterial feed production line |
-
2021
- 2021-08-22 CN CN202110964484.1A patent/CN113546939A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002066221A (en) * | 2000-09-01 | 2002-03-05 | Maezawa Ind Inc | Dust removing apparatus and dust removing machine equipped with the apparatus |
| CN206746173U (en) * | 2017-05-16 | 2017-12-15 | 福建弘高石粉综合利用有限公司 | A kind of workshop dust collector |
| CN206937101U (en) * | 2017-05-31 | 2018-01-30 | 温州市骐邦环保科技有限公司 | A kind of Environmental-protecting dust-removing operating desk in workshop of polishing |
| CN108584023A (en) * | 2018-04-24 | 2018-09-28 | 苏州高新区鼎正精密机电有限公司 | A kind of medical packaging production line Superficial Foreign Body remove device |
| CN111925832A (en) * | 2020-06-24 | 2020-11-13 | 福建省气柜设备安装有限公司 | Electrostatic gas cooling, oil removing and dust removing device |
| CN213864181U (en) * | 2020-11-16 | 2021-08-03 | 张蕊 | Antibacterial feed production line |
| CN112570323A (en) * | 2020-12-01 | 2021-03-30 | 贵州黔程慧通科技发展有限责任公司 | Intelligent dustproof control cabinet |
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Application publication date: 20211026 |