CN119386580A - An air purification equipment for high dust workshop - Google Patents
An air purification equipment for high dust workshop Download PDFInfo
- Publication number
- CN119386580A CN119386580A CN202510007430.4A CN202510007430A CN119386580A CN 119386580 A CN119386580 A CN 119386580A CN 202510007430 A CN202510007430 A CN 202510007430A CN 119386580 A CN119386580 A CN 119386580A
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- inner support
- lines
- cylinder
- cover plate
- dust
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- 239000000428 dust Substances 0.000 title claims abstract description 49
- 238000004887 air purification Methods 0.000 title claims abstract description 12
- 238000001914 filtration Methods 0.000 claims abstract description 46
- 230000000694 effects Effects 0.000 abstract description 12
- 238000004140 cleaning Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004753 textile Substances 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
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/58—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
- B01D46/60—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel arranged concentrically or coaxially
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to the technical field of dust removal, and discloses high-dust workshop air purification equipment which comprises a barrel, wherein a cover plate II and a cover plate I are respectively fixed on the upper side and the lower side of the barrel, a filtering unit is arranged in the barrel, the filtering unit comprises an inner supporting barrel, a control barrel and a net layer component, the inner supporting barrel is arranged in the barrel, the control barrel and the net layer component are arranged in the inner supporting barrel, the net layer component is used for filtering dust, and the control barrel is used for controlling the tightness degree of the net layer component. According to the invention, the transverse lines and the longitudinal lines are in a tight state, so that dust is blocked, the transverse lines and the longitudinal lines are in a loose state, the blocked dust is conveniently separated, the transverse lines and the longitudinal lines which can be loosened and fastened can realize a filtering effect, dust is conveniently cleaned, dust is prevented from being blocked, and deformation of a formed filtering hole after long-time use is avoided.
Description
Technical Field
The invention relates to the technical field of dust removal, in particular to high-dust workshop air purification equipment.
Background
The high-dust workshop needs a reasonable-design ventilation layout to ensure effective ventilation of air in the workshop, and high-efficiency ventilation equipment such as an exhaust fan, an exhaust fan and the like is also required to be installed to discharge dust in the workshop. In addition, an independent partition ventilation system is arranged for the region or the working procedure with larger dust generation amount, so that the ventilation frequency and the dust collection capability are improved.
The air purifier is placed at a proper position in a workshop, the air purifier is placed at a position with good indoor air circulation, the air purifier is prevented from approaching walls, furniture or other barriers, so that air can smoothly enter and leave the air purifier, and because pollutants such as dust in the air are heavier and can be deposited downwards, the air purifier is placed at a lower position as much as possible, and is close to a source or a pollution source generated by the dust, so that the pollutants can be captured and filtered more effectively. But also ensure that the periphery of the air purifier is not shielded so as not to influence the normal operation of the air purifier, the air purifier needs to be kept dry in workshops with high requirements, a filtering mode is generally adopted during dust treatment, dust particles in the air are trapped on a filter medium in a physical blocking mode, so that the aim of purifying the air is fulfilled, and the filter medium can be a filter bag, a filter core or a filter plate made of materials such as textiles, metal meshes, ceramics, plastics and the like.
Along with the proceeding of filtration, the dust on the filtration equipment gradually accumulates to can block up filterable hole, need handle filtration equipment with the help of the mode of external mechanical vibration or pulse jetting, but lie in the dust of filtration hole and pass through the hole under external mechanical equipment effect, prop the hole easily or damage, to the filtration equipment that needs frequent clearance, damage filtration equipment very easily, make the filter effect not good.
Disclosure of Invention
The invention aims to provide high-dust workshop air purifying equipment so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the technical scheme that the high-dust workshop air purifying device comprises a cylinder body, wherein a cover plate II and a cover plate I are respectively fixed on the upper side and the lower side of the cylinder body, a filtering unit is arranged in the cylinder body, and the filtering unit comprises an inner supporting cylinder, a control cylinder and a net layer component;
The inner support cylinder is arranged in the cylinder body, the control cylinder and the net layer component are arranged in the inner support cylinder, the net layer component is used for filtering dust, and the control cylinder is used for controlling the tightness degree of the net layer component.
Further, the outer sides of the first cover plate and the second cover plate are respectively fixed with an air inlet pipe and an air outlet pipe;
the lower end of the cover plate I is also supported with a frame body.
Further, the inner support cylinder is fixed at the lower end of the second cover plate, two air inlet layers are arranged on the outer side of the inner support cylinder, and the two air inlet layers are symmetrical;
Four inner supporting layers are fixed on the inner wall of the inner supporting cylinder, the four inner supporting layers are respectively located on two sides of the two air inlet layers, the inner side face of the inner supporting layer is arc-shaped, the axis of the inner supporting layer coincides with the axis of the inner supporting cylinder, two groups of net layer components are arranged, the two groups of net layer components are respectively located in the two air inlet layers, and the two net layer components are respectively located between the two inner supporting layers and limited.
Further, the control cylinder is cylindrical, two symmetrical arc-shaped surfaces and two symmetrical flat surfaces are arranged on the outer wall of the control cylinder, the arc-shaped surfaces are used for being extruded with the net layer component to tighten the net layer component, and the flat surfaces are used for loosening the net layer component;
The arc-shaped surface of the control cylinder is contacted with the inner side of the inner supporting layer, and the arc-shaped surface is also provided with a hole for air inlet.
Further, the net layer component comprises clamping strips, transverse wires, limiting frames and longitudinal wires;
The clamping strips are provided with two clamping strips, a plurality of transverse lines and longitudinal lines are respectively provided with a plurality of clamping strips, the transverse lines are respectively fixed between the two clamping strips, the transverse lines are loose, the longitudinal lines are respectively fixed in the limiting frame, and the transverse lines and the longitudinal lines are respectively in a grid shape and used for filtering.
Further, the inner supporting layer is penetrated with a clamping opening from bottom to top, the clamping opening is matched with the clamping strip, the inner wall of the inner supporting cylinder and the lower end of the second cover plate are both provided with mounting openings, and the two mounting openings are used for being matched with the limiting frame.
Further, the longitudinal lines are located on the outer sides of the transverse lines, and the longitudinal lines and the transverse lines are dense lines.
Furthermore, the outer sides of the upper branch and the lower branch of the limiting frame are respectively fixed with a plurality of groups of limiting clamps, and the plurality of groups of limiting clamps are used for limiting the longitudinal lines, so that the longitudinal lines are uniformly distributed.
Compared with the prior art, the invention has the following beneficial effects:
1. The transverse line and the longitudinal line are in a tight state, so that dust is blocked, the transverse line and the longitudinal line are in a loose state, the blocked dust is separated conveniently, the transverse line and the longitudinal line which can be loosened and fastened for changing can realize a filtering effect, dust is cleaned conveniently, dust blocking is avoided, and deformation of a formed filtering hole is avoided after long-time use.
2. The control cylinder is rotated, the arc-shaped surface is extruded with the transverse line, the transverse line is originally in a transverse state, no deviation is generated in the rotation of the arc-shaped surface, the distance between the transverse line and the transverse line is not changed, the longitudinal line is positioned at the outer side of the transverse line, the influence of the arc-shaped surface on the longitudinal line is small, the transverse line and the longitudinal line can form a filter hole with relatively uniform distance after being stretched tightly, and the filtering effect is ensured to be good.
3. The limiting clamps limit the longitudinal lines, so that the longitudinal lines are distributed relatively uniformly, the formed filter holes are ensured to be relatively uniform, and the filtering effect is ensured.
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 the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the cylinder of the present invention;
FIG. 3 is a schematic view of the exploded construction of the cartridge of the present invention;
FIG. 4 is a schematic diagram of the structure of the filter unit of the present invention;
FIG. 5 is a schematic view of the structure of the web component of the present invention;
FIG. 6 is a schematic view of a longitudinal section of the present invention;
FIG. 7 is a schematic view of a cross-line portion structure of the present invention;
FIG. 8 is a schematic top view of a filter unit of the present invention;
FIG. 9 is a schematic view of the control cylinder of the present invention rotated ninety degrees;
fig. 10 is a schematic view of a partial cross-section of a filter unit of the present invention.
In the figure, 1, a cylinder body, 2, a cover plate I, 3, a cover plate II, 4, a frame body, 5, an air inlet pipe, 6, an air outlet pipe, 7, a filtering unit, 71, an inner supporting cylinder, 72, an air inlet layer, 73, an inner supporting layer, 74, a clamping opening, 75, a control cylinder, 751, an arc-shaped surface, 752, a flat surface, 76, a net layer component, 761, a clamping strip, 762, a transverse line, 763, a limiting frame, 764, a limiting clamp, 765, a longitudinal line, 766 and a mounting opening.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-10, the present invention provides a technical solution that dust on a filtering device is gradually accumulated and a filtering hole is blocked, the filtering device needs to be treated by means of external mechanical vibration or pulse blowing, but the dust located in the filtering hole passes through the hole under the action of the external mechanical device, so that the hole is easily enlarged or damaged, and the filtering device is easily damaged to make the filtering effect poor for the filtering device needing frequent cleaning, and as shown in fig. 1, 2 and 3, the present invention provides a high dust workshop air purifying device, which comprises a cylinder 1, wherein a cover plate two 3 and a cover plate one 2 are respectively fixed on the upper side and the lower side of the cylinder 1, a filtering unit 7 is installed in the cylinder 1, and the filtering unit 7 comprises an inner supporting cylinder 71, a control cylinder 75 and a net layer component 76;
The inner support cylinder 71 is arranged in the cylinder body 1, the control cylinder 75 and the net layer component 76 are arranged in the inner support cylinder 71, the net layer component 76 is used for filtering dust, the control cylinder 75 is used for controlling the tightness degree of the net layer component 76, the control cylinder 75 is used for controlling, the outer wall of the control cylinder 75 is provided with holes, and filtered gas can move inwards from the holes to finish filtering.
As shown in fig. 1, the outer sides of the first cover plate 2 and the second cover plate 3 are respectively fixed with an air inlet pipe 5 and an air outlet pipe 6, so that air inlet and air outlet are smooth;
The lower end of the cover plate I2 is also supported with a frame body 4.
As shown in fig. 3, the inner support cylinder 71 is fixed at the lower end of the second cover plate 3, two air inlet layers 72 are arranged on the outer side of the inner support cylinder 71, the two air inlet layers 72 are symmetrical, and air is introduced from the air inlet layers 72;
As shown in fig. 4, four inner supporting layers 73 are fixed on the inner wall of the inner supporting cylinder 71, the four inner supporting layers 73 are respectively located at two sides of the two air inlet layers 72, the inner side surface of the inner supporting layer 73 is arc-shaped, the axis of the inner supporting layer is coincident with the axis of the inner supporting cylinder 71, two groups of net layer components 76 are arranged, the two groups of net layer components 76 are respectively located inside the two air inlet layers 72, the two net layer components 76 are respectively located between the two inner supporting layers 73 and are limited, the four inner supporting layers 73 are in contact with the control cylinder 75, and after the air enters the air inlet layers 72, the air can only move inwards through holes of the control cylinder 75.
As shown in fig. 5, in order to control whether the mesh layer component 76 can be filtered and how to facilitate cleaning after filtration, the control cylinder 75 is cylindrical, the outer wall of the control cylinder 75 is provided with two symmetrical arc surfaces 751 and two symmetrical straight surfaces 752, the arc surfaces 751 are used for extruding the mesh layer component 76 to tighten the mesh layer component 76, the straight surfaces 752 are used for loosening the mesh layer component 76, the arc surfaces 751 and the straight surfaces 752 of the control cylinder 75 control tightness degree of the mesh layer component 76, the filtration effect can be realized, loose dust cleaning can be realized, holes of the mesh layer component 76 are prevented from being fixed, and the expansion of the holes is easily caused when dust passes through the holes during cleaning, so that subsequent filtration is affected;
the arcuate surface 751 of the control cylinder 75 contacts the inside of the inner support layer 73 and the arcuate surface 751 also has inlet holes therein and the arcuate surface 751 is provided with holes because the arcuate surface 751 is pressed against the mesh sheet member 76 to form a mesh shape with the mesh sheet member 76 and the gas is required to pass through the mesh sheet member 76 during the filtration process and then through the holes in the arcuate surface 751.
As shown in fig. 5, 6 and 7, the web member 76 includes a grip bar 761, a transverse line 762, a limit frame 763 and a longitudinal line 765;
The clamping bars 761 are provided with two clamping bars, the transverse lines 762 and the longitudinal lines 765 are provided with a plurality of, the transverse lines 762 are fixed between the two clamping bars 761, the transverse lines 762 are loose, the longitudinal lines 765 are fixed in the limiting frame 763, the transverse lines 762 and the longitudinal lines 765 form a grid shape for filtering, the transverse lines 762 and the longitudinal lines 765 are spliced into a sheet shape, and the sheet-shaped filtering device has filtering holes, so that the filtering effect is realized, the holes are not visible after the loosening, and the cleaning is convenient.
The clamping strip 761 and the limiting frame 763 are required to be installed, the inner supporting layer 73 is penetrated with a clamping opening 74 from bottom to top, the clamping opening 74 is matched with the clamping strip 761, the inner wall of the inner supporting cylinder 71 and the lower end of the cover plate II 3 are provided with mounting openings 766, and the two mounting openings 766 are used for being matched with the limiting frame 763.
The vertical lines 765 are located on the outer side of the horizontal lines 762, the vertical lines 765 and the horizontal lines 762 are dense lines, and the horizontal lines 762 are located on the side contacted with the arc-shaped surface 751, so that even though the horizontal lines 762 are subjected to the rotation action of the arc-shaped surface 751, the vertical lines 765 can be uniformly distributed, the vertical lines 765 are not directly contacted with the arc-shaped surface 751, influence is small, gas moves from outside to inside, thrust is exerted on the vertical lines 765 and the horizontal lines 762, the vertical lines 765 and the horizontal lines 762 are enabled to be attached to the arc-shaped surface 751, the vertical lines 765 and the horizontal lines 762 are limited, and filtering stability is further maintained.
The outer sides of the upper branch and the lower branch of the limiting frame 763 are respectively fixed with a plurality of groups of limiting clamps 764, the groups of limiting clamps 764 are used for limiting the longitudinal lines 765, so that the longitudinal lines 765 are uniformly distributed, and the longitudinal lines 765 and the transverse lines 762 keep the formed grids uniform.
The working principle of the invention is that air is fed in from an air inlet pipe 5 and is discharged from an air outlet pipe 6, dust in the air is filtered in the cylinder 1, and when the air enters the cylinder 1, the air enters an inner supporting cylinder 71 through an air inlet layer 72 and a net layer part 76 and then moves upwards;
When the gas passes through the mesh member 76, the arc surface 751 of the control cylinder 75 is pressed against the mesh member 76, and the mesh member 76 is supported by the mesh member 76, and both the transverse wire 762 and the longitudinal wire 765 are in a tight state, so that the mesh formed by the transverse wire 762 and the longitudinal wire 765 is relatively fastened, avoiding deformation, blocking dust, and then rotating the control cylinder 75, and the flat surface 752 is corresponding to the mesh member 76, so that the transverse wire 762 and the longitudinal wire 765 of the mesh member 76 are in a loose state, dust on the transverse wire 762 and the longitudinal wire 765 is easily shaken off, facilitating separation of blocked dust, and then, when the transverse wire 762 and the longitudinal wire 765 are fastened again, expansion of formed filter holes can be avoided, the transverse wire 762 and the longitudinal wire 765 which can perform loose and fastening changes can realize a filtering effect, dust cleaning is facilitated, dust blocking is avoided, and deformation is also avoided after the formed filter holes are used for a long time.
Secondly, the filter screen can be formed and loosened through the rotation of the control cylinder 75, the control cylinder 75 is convenient to operate, in addition, the arc-shaped surface 751 is extruded with the transverse line 762, the transverse line 762 is tightened, the transverse line 762 is originally in a transverse state, no deviation is generated in the rotation of the arc-shaped surface 751, the distance between the transverse line 762 and the transverse line 762 cannot be changed, the longitudinal line 765 is located on the outer side of the transverse line 762, the influence of the arc-shaped surface 751 on the longitudinal line 765 is small, and filter holes with relatively uniform distance can be formed after the transverse line 762 and the longitudinal line 765 are tightened, so that good filtering effect is ensured.
In addition, the limiting clamps 764 limit the longitudinal lines 765, so that the longitudinal lines 765 are distributed relatively uniformly, the formed filtering holes are ensured to be relatively uniform, and the filtering effect is ensured.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present invention, and the present invention is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510007430.4A CN119386580B (en) | 2025-01-03 | 2025-01-03 | An air purification equipment for high dust workshop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510007430.4A CN119386580B (en) | 2025-01-03 | 2025-01-03 | An air purification equipment for high dust workshop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN119386580A true CN119386580A (en) | 2025-02-07 |
| CN119386580B CN119386580B (en) | 2025-03-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510007430.4A Active CN119386580B (en) | 2025-01-03 | 2025-01-03 | An air purification equipment for high dust workshop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119386580B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE224182C (en) * | ||||
| DE941885C (en) * | 1950-07-01 | 1956-04-19 | Praez S Drahtgewebefabrik | Method and device for the production of fine-meshed screens |
| KR20020068009A (en) * | 2002-07-27 | 2002-08-24 | 한기백 | Apparatus for filtering using variable flexible fiber filter module |
| CN201002093Y (en) * | 2007-02-08 | 2008-01-09 | 秦皇岛思泰意达科技发展有限公司 | Wind-screening dust-inhibiting net |
| CN106731323A (en) * | 2017-01-23 | 2017-05-31 | 王宇轩 | A kind of silk thread filter and air purification filter unit for purification of air |
| JP2018183765A (en) * | 2017-04-26 | 2018-11-22 | 株式会社アース | Sieve using tensile strength wire material |
| CN110216062A (en) * | 2019-06-24 | 2019-09-10 | 郑州工程技术学院 | A kind of civil engineering Sand screen |
| CN210356235U (en) * | 2019-07-01 | 2020-04-21 | 新疆新壹天过滤设施科技开发有限公司 | Wire-wound filter element with high filtering efficiency |
| CN116174297A (en) * | 2023-04-21 | 2023-05-30 | 四川远方云天食品科技有限公司 | Raw material anti-blocking screening device for hotpot condiment production |
| CN219848710U (en) * | 2023-05-31 | 2023-10-20 | 赵洪周 | Air cleaner filter core and air cleaner |
-
2025
- 2025-01-03 CN CN202510007430.4A patent/CN119386580B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE224182C (en) * | ||||
| DE941885C (en) * | 1950-07-01 | 1956-04-19 | Praez S Drahtgewebefabrik | Method and device for the production of fine-meshed screens |
| KR20020068009A (en) * | 2002-07-27 | 2002-08-24 | 한기백 | Apparatus for filtering using variable flexible fiber filter module |
| CN201002093Y (en) * | 2007-02-08 | 2008-01-09 | 秦皇岛思泰意达科技发展有限公司 | Wind-screening dust-inhibiting net |
| CN106731323A (en) * | 2017-01-23 | 2017-05-31 | 王宇轩 | A kind of silk thread filter and air purification filter unit for purification of air |
| JP2018183765A (en) * | 2017-04-26 | 2018-11-22 | 株式会社アース | Sieve using tensile strength wire material |
| CN110216062A (en) * | 2019-06-24 | 2019-09-10 | 郑州工程技术学院 | A kind of civil engineering Sand screen |
| CN210356235U (en) * | 2019-07-01 | 2020-04-21 | 新疆新壹天过滤设施科技开发有限公司 | Wire-wound filter element with high filtering efficiency |
| CN116174297A (en) * | 2023-04-21 | 2023-05-30 | 四川远方云天食品科技有限公司 | Raw material anti-blocking screening device for hotpot condiment production |
| CN219848710U (en) * | 2023-05-31 | 2023-10-20 | 赵洪周 | Air cleaner filter core and air cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119386580B (en) | 2025-03-28 |
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