A paint mist filter and paint mist filtering system

Abstract

The application relates to the technical field of paint mist filtering, and provides a paint mist filter and a paint mist filtering system, which can solve the technical problems of high replacement cost, high disposal cost and serious disposal pollution of the paint mist filter. The paint mist filter comprises a shell, a filtering assembly and a cover body, the shell comprises a cavity, an air inlet, an air outlet and a mounting port which are communicated with the cavity, the filtering assembly is arranged in the cavity, the mounting port is used for mounting the filtering assembly in the cavity and dismounting the filtering assembly from the cavity, and the cover body is arranged in the mounting port in an openable and closable mode.

Description

Technical Field

[0001] This application relates to the field of paint mist filtration technology, and more particularly to a paint mist filter and a paint mist filtration system. Background Technology

[0002] In industries such as metal products and automobile manufacturing, paint spraying is required to meet the appearance, mechanical, and chemical properties of products. This spraying process generates a large amount of paint mist.

[0003] In related technologies, paint mist is collected using a cardboard paint mist filter, which is made entirely of corrugated paper or ordinary paper.

[0004] However, paint mist filters with paint adhering to their surface after use cannot be recycled and need to be disposed of as hazardous waste, such as through incineration or landfill. This results in technical problems such as high replacement costs, high disposal costs, and serious pollution from the disposal of paint mist filters. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a paint mist filter and a paint mist filtration system. The paint mist filter enables the recycling of its housing, thereby reducing the replacement and disposal costs of the paint mist filter and minimizing pollution caused during disposal.

[0006] In a first aspect, this application provides a paint mist filter, which includes: a housing, including a cavity and an air inlet, an air outlet and an installation port communicating with the cavity; a filter assembly disposed in the cavity, the installation port being used to install the filter assembly into the cavity and to remove the filter assembly from the cavity; and a cover disposed in the installation port in an openable manner.

[0007] This application, by creating an installation port on the housing for disassembling and assembling the filter components, and in conjunction with a cover for the switch installation port, allows the paint mist filter to be selectively scrapped and the filter components within the chamber replaced after prolonged use, rather than the entire paint mist filter. This preserves the housing and cover, enabling the recycling of the paint mist filter's outer shell structure. Since paint mist filters are consumables used in large quantities, eliminating the need to replace the housing and cover during replacement reduces replacement costs. Correspondingly, by achieving the recycling of the outer shell structure, only the disassembled filter components need to be disposed of during the disposal process, reducing the amount of material disposed of, thereby lowering disposal costs and pollution. For example, when choosing incineration, incinerating only the filter components reduces incineration costs and the amount of smoke generated; when choosing landfill disposal, burying only the filter components reduces landfill space and lowers the pressure on land degradation. This solves the technical problems of high replacement and disposal costs and severe disposal pollution associated with paint mist filters in related technologies.

[0008] In some implementations, the cover and the shell are detachably connected.

[0009] In some implementations, a first magnetic element is provided on the shell and a second magnetic element is provided on the cover, and the first and second magnetic elements are magnetically connected.

[0010] In some implementations, the housing includes a bottom plate and a side plate, which enclose a cavity. The side plate away from the bottom plate forms an installation opening. An air inlet and an air outlet are located on the side plate. A first magnetic element is located on the side plate. The cover includes a shielding section and a connecting section, which are rotatably connected. The shielding section covers the installation opening. The connecting section is located on the periphery of the side plate. A second magnetic element is located on the connecting section.

[0011] In some implementations, the inner surfaces of the housing and cover are covered with a protective film to block paint mist.

[0012] In some implementations, the paint mist filter also includes an air distribution component, which is disposed in the cavity and located between the air inlet and the filter assembly, for dispersing the airflow between the air inlet and the filter assembly; wherein, the mounting port is also used for installing the air distribution component into the cavity and removing the air distribution component from the cavity.

[0013] In some implementations, the air inlet and the filter assembly are arranged opposite each other in the first direction, and the air distribution assembly includes multiple support frames, which are distributed in an array, with adjacent support frames staggered in the first direction.

[0014] In some implementations, the air distribution assembly also includes a partition for separating at least two air ducts between the air inlet and the filter assembly, with a support frame connected to the partition and positioned horizontally within the air ducts.

[0015] In some implementations, the filter assembly includes a honeycomb paper layer and a filter cotton layer, which are stacked between the air inlet and the air outlet, with the honeycomb paper layer closer to the air inlet and the filter cotton layer closer to the air outlet.

[0016] Secondly, this application provides a paint mist filtration system, which includes: a cabinet, an opening in the cabinet for connecting to the exhaust duct of the paint spraying workshop, and an outlet in the cabinet for connecting to a fresh air system; and a plurality of paint mist filters, as described in the first aspect, disposed in the cabinet for filtering paint mist between the exhaust duct and the fresh air system.

[0017] In the paint mist filtration system of this application, since it includes the paint mist filter of the first aspect, the same beneficial effects can be achieved. That is, the paint mist filter can realize the recycling of the housing, thereby reducing the replacement and disposal costs of the paint mist filter, and reducing the pollution caused by the paint mist filter during disposal. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the paint mist filter according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the paint mist filter according to an embodiment of this application; Figure 3 This is a schematic diagram of the honeycomb paper layer of the paint mist filter according to an embodiment of this application; Figure 4 This is a schematic diagram of the paint mist filtration system according to an embodiment of this application.

[0021] Explanation of reference numerals in the attached figures: 1-Paint mist filter; 11-Housing shell; 111-Cavity; 112-Air inlet; 113-Air outlet; 115-Base plate; 116-Side plate; 12-Filter assembly; 121-Honeycomb paper layer; 122-Filter cotton layer; 13-Cover; 131-Shielding section; 132-Connecting section; 14-First magnetic component; 15-Second magnetic component; 16-Protective membrane; 17-Air distribution assembly; 171-Support frame; 172-Partition; 2-Paint mist filtration system; 21-Cabinet; 3-Painting workshop; 31-Exhaust duct; 4-Fresh air equipment; X-First direction. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0025] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0028] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0029] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0030] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0031] Below, in conjunction with Figures 1 to 4 This application will be described in detail.

[0032] In industries such as metal products and automobile manufacturing, paint spraying is required to meet the appearance, mechanical, and chemical properties of products. Specific products need to undergo paint spraying operations in paint spraying workshops. Paint spraying operations will generate a large amount of paint mist in the paint spraying workshop. This paint mist will be mixed in with the air and flow into the fresh air system of the paint spraying workshop with the airflow. In order to protect the fresh air system, the paint mist in the air needs to be filtered. As a filter unit in the paint mist filtration system, the paint mist filter can filter the paint mist in the air flowing through it.

[0033] In related technologies, the outer shell of the paint mist filter is made of paper material. After use, a large amount of paint adheres to the inside of the paint mist filter, requiring the entire filter to be scrapped and a new paint mist filter to be added to the filtration system. It can be seen that the paint mist filter in related technologies needs to be replaced as a whole. Moreover, the paint mist filter is a consumable that needs to be replaced frequently during the production process, resulting in a high replacement cost.

[0034] Furthermore, when disposing of waste paint mist filters, one can choose to incinerate or bury the entire filter. However, intensive production processes require the disposal of a large number of paint mist filters, and the above-mentioned disposal methods will pollute the environment.

[0035] However, paint mist filters with paint adhering to their surface after use cannot be recycled and need to be disposed of as hazardous waste, such as through incineration or landfill. This results in technical problems such as high replacement costs, high disposal costs, and serious pollution from the disposal of paint mist filters.

[0036] To address the aforementioned technical problems of high replacement and disposal costs and severe pollution from paint mist filters, embodiments of this application provide a paint mist filter and a paint mist filtration system.

[0037] The paint mist filter 1 of this application embodiment can be applied in the paint mist filtration system 2 of the paint spraying workshop 3. It can not only meet the paint mist filtration requirements, but also realize the recycling of the outer shell, thereby reducing the replacement cost and disposal cost of the paint mist filter 1 and reducing disposal pollution.

[0038] Reference Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the paint mist filter 1 according to an embodiment of this application. Figure 2 This is a schematic diagram of the structure of the paint mist filter 1 according to an embodiment of this application. The paint mist filter 1 according to this embodiment of this application includes: a housing 11, including a cavity 111 and an air inlet 112, an air outlet 113 and a mounting port communicating with the cavity 111; a filter assembly 12, disposed in the cavity 111, the mounting port being used for installing the filter assembly 12 into the cavity 111 and removing the filter assembly 12 from the cavity 111; and a cover 13, which is closable and disposed at the mounting port.

[0039] The paint mist filter 1 proposed in this application includes a housing 11, a filter assembly 12, and a cover 13.

[0040] The housing 11 serves as the external frame of the paint mist filter 1, protecting the internal filter assembly 12 and preventing paint leakage. The housing 11 encloses a cavity 111, and has an air inlet 112, an air outlet 113, and a mounting port that communicate with the cavity 111. Airflow carrying paint mist enters the cavity 111 through the air inlet 112 and is ultimately discharged through the air outlet 113. The mounting port avoids the air inlet 112 and the air outlet 113.

[0041] The filter assembly 12 is installed in the cavity 111, specifically between the air inlet 112 and the air outlet 113. As air carrying paint mist flows through the filter assembly 12, the paint mist is filtered out and adheres to the filter assembly 12. With increased usage time, more paint adheres to the filter assembly 12, causing its gas flow and filtration performance to deteriorate, at which point it needs to be disposed of. The installation port is larger than the filter assembly 12, allowing the filter assembly 12 to be installed into the cavity 111 or removed from the cavity 111 when it is no longer in use.

[0042] The cover 13 is connected to the housing 11. The cover 13 has an open state and a closed state. When the cover 13 is in the open state, the mounting port on the housing 11 is exposed, and the operator can install a new filter assembly 12 into the cavity 111 or remove a scrapped filter assembly 12 from the cavity 111. When the cover 13 is in the closed state, the mounting port is covered by the cover 13, which on the one hand prevents the filter assembly 12 from being misaligned or even falling out, and on the other hand prevents paint from overflowing.

[0043] When the filter assembly 12 needs to be scrapped, first open the cover 13 to expose the installation port. Then, the operator removes the filter assembly 12 through the installation port, and then inserts the new filter assembly 12 into the cavity 111 through the installation port. Finally, the operator reinstalls the paint mist filter 1 with the replaced filter assembly 12 into the paint mist filtration system 2 and disposes of the replaced filter assembly 12 as scrap.

[0044] Therefore, this application, by providing an installation port on the housing 11 for the removal and installation of the filter assembly 12, and in conjunction with a cover 13 for the switch installation port, allows the paint mist filter 1 to be selectively scrapped and the filter assembly 12 in the cavity 111 replaced after prolonged use, rather than the entire paint mist filter 1, thus preserving the housing 11 and cover 13 and achieving the recycling of the paint mist filter 1's outer shell structure. Since paint mist filters are consumables used in large quantities, eliminating the need to replace the housing 11 and cover 13 during replacement reduces the replacement cost of the paint mist filter 1. Correspondingly, after achieving the recycling of the outer shell structure, only the removed filter assembly 12 needs to be disposed of in the disposal process, reducing the amount of material disposed of, thereby reducing disposal costs and pollution. For example, when choosing incineration, incinerating only the filter assembly 12 reduces incineration costs and the amount of smoke generated; when choosing landfill disposal, burying only the filter assembly 12 reduces landfill space and lowers the pressure on land degradation. This solves the technical problems of high replacement and disposal costs and serious pollution from the paint mist filter 1 in related technologies.

[0045] In an alternative embodiment, the cover 13 is rotatably connected to the housing 11, and the operator can open or close the mounting port by flipping the cover 13.

[0046] In one alternative embodiment, based on the recyclability of the housing 11 and the cover 13 through structural design, the housing 11 uses a high-strength porous board turnover box material. This material has the advantage of high structural strength, which can improve the shielding and protection effect on the filter assembly 12, as well as the barrier effect on the interior. On the other hand, compared with the technical solution of making the housing 11 with paper material, the porous board turnover box material has a longer service life, which can meet the requirements of long-term recycling, thereby further reducing the replacement and disposal costs of the paint mist filter 1 from the perspective of the housing 11.

[0047] Reference Figure 1 In some embodiments of this application, the cover 13 is detachably connected to the housing 11.

[0048] The cover 13 and the shell 11 are separate structures, and the shell 11 is connected to the shell 11 by a detachable structure.

[0049] Specifically, during use, the cover 13 of the paint mist filter 1 is fixed to the installation port via a detachable structure to cover the installation port, prevent the filter assembly 12 from misaligning or falling out, and avoid internal paint overflow. When the filter assembly 12 needs to be scrapped, the cover 13 is first removed from the housing 11 to expose the installation port. Then, the old filter assembly 12 is removed and the new filter assembly 12 is assembled. Finally, the cover 13 is reinstalled at the installation port.

[0050] The detachable connection structure has the advantages of low structural complexity and high reliability. Compared with the scheme of connecting the cover 13 and the shell 11 through a rotating structure or a sliding structure, the design of the detachable cover 13 can reduce the process complexity and production cost, and reduce the failure rate of the cover 13 in opening and closing.

[0051] On the other hand, when a large amount of paint adheres to the cover 13, the cover 13 can be disposed of separately without involving the housing 11, so that the housing 11 can continue to be recycled, thereby reducing the replacement and disposal costs of the paint mist filter 1 and reducing the pollution caused by the paint mist filter 1.

[0052] Specifically, the cover 13 can be connected to the housing 11 via a snap-fit ​​structure, a magnetic structure, or a felt. In this embodiment, no rigid limitation is made on the connection structure between the cover 13 and the housing 11, as long as the requirement for a detachable and washable connection is met.

[0053] Reference Figure 1 In some embodiments of this application, a first magnetic element 14 is provided on the housing 11, and a second magnetic element 15 is provided on the cover 13. The first magnetic element 14 and the second magnetic element 15 are magnetically connected.

[0054] The cover 13 and the shell 11 are detachably connected by a first magnetic element 14 and a second magnetic element 15.

[0055] Specifically, a first magnetic element 14 is provided on the housing 11, and a second magnetic element 15 is provided at the corresponding position on the cover 13. When the cover 13 is assembled to the predetermined position on the housing 11, the first magnetic element 14 and the second magnetic element 15 are attracted together by magnetic attraction to lock the cover 13. When it is necessary to replace the filter assembly 12, the cover 13 can be removed by separating the first magnetic element 14 and the second magnetic element 15.

[0056] The first magnetic component 14 and the second magnetic component 15 can be directly bonded to the housing 11 and the cover 13, which reduces the complexity of the process and helps to reduce production costs. In addition, the magnetic connection method is easy to install and remove, which can reduce the difficulty of removing and installing the cover 13 and improve the replacement efficiency of the filter assembly 12.

[0057] Specifically, the first magnetic element 14 is disposed around the perimeter of the housing 11 and / or at the mounting opening.

[0058] Reference Figure 1 and Figure 2 In some embodiments of this application, the housing 11 includes a bottom plate 115 and a side plate 116, which enclose a cavity 111. The side plate 116 away from the bottom plate 115 forms an installation opening. An air inlet 112 and an air outlet 113 are located on the side plate 116. A first magnetic element 14 is disposed on the side plate 116. The cover 13 includes a shielding section 131 and a connecting section 132, which are rotatably connected. The shielding section 131 covers the installation opening, and the connecting section 132 is located on the periphery of the side plate 116. A second magnetic element 15 is disposed on the connecting section 132.

[0059] The housing 11 includes a base plate 115 and a side plate 116. The side plate 116 surrounds the base plate 115, with its lower end blocked by the base plate 115 and its upper end forming an installation opening. The side plate 116 and the base plate 115 together enclose the cavity 111. An air inlet 112 and an air outlet 113 are provided on the side plate 116, specifically on the front and rear sides of the side plate 116. Positioning the air inlet 112 and air outlet 113 opposite each other reduces airflow resistance and improves air filtration efficiency. A first magnetic element 14 is provided on the side plate 116, specifically on the left and right sides of the side plate 116.

[0060] Correspondingly, the cover 13 includes a blocking section 131 and a connecting section 132. The shape of the blocking section 131 is adapted to the shape of the mounting opening. After the cover 13 is assembled, the blocking section 131 can block the mounting opening to close it. The connecting section 132 is connected to the blocking section 131, and the connecting section 132 can be flipped relative to the blocking section 131. The second magnetic element 15 is disposed on the connecting section 132.

[0061] During the assembly of the cover 13, the blocking section 131 is first placed on the mounting opening, and then the connecting section 132 is flipped to the outside of the side plate 116, so that the first magnetic element 14 on the side plate 116 and the second magnetic element 15 on the connecting section 132 are attracted together, thereby locking the cover 13 by the magnetic attraction between the two.

[0062] Compared to the mounting opening, the side plate 116 has more space available for arranging the first magnetic component 14, which is beneficial for arranging a large-sized first magnetic component 14, thereby improving the magnetic attraction reliability between the cover 13 and the housing 11. On the other hand, avoiding the mounting opening with the first magnetic component 14 can prevent the first magnetic component 14 from being contaminated by the paint in the cavity 111, thereby extending its service life and achieving the technical effect of reducing maintenance and replacement costs.

[0063] Reference Figure 2 In some embodiments of this application, the inner surfaces of the housing 11 and the cover 13 are covered with a protective film 16, which is used to block paint mist.

[0064] A protective film 16 is attached to the inner surface of the housing 11 and the lower surface of the cover 13, and the protective film 16 is bonded to the cover 13 and the housing 11. The protective film 16 acts as a barrier. Specifically, during the filtration process, the filtered paint will adhere to the protective film 16 to prevent the paint from adhering to the housing 11 and the cover 13. When the amount of paint adhering to the protective film 16 affects the airflow, the operator can peel the protective film 16 off the cover 13 and the housing 11 and replace it with a new one.

[0065] Therefore, by setting the protective film 16, the cover 13 and the housing 11 can be protected from the filtered paint, thereby increasing the number of times the cover 13 and the housing 11 can be recycled and extending their service life. This achieves the technical effect of reducing the replacement and disposal costs of the paint mist filter 1 and reducing the pollution caused by the paint mist filter 1.

[0066] Specifically, the protective film 16 can be selected as a plastic film.

[0067] Reference Figure 1 and Figure 2In some embodiments of this application, an air distribution component 17 is also included, which is disposed in the cavity 111 and located between the air inlet 112 and the filter component 12, for dispersing the airflow between the air inlet 112 and the filter component 12; wherein, the mounting port is also used for installing the air distribution component 17 into the cavity 111 and removing the air distribution component 17 from the cavity 111.

[0068] During the use of paint mist filter 1, uneven paint mist filtration may occur due to different air volume or installation position. In this case, if the paint mist is directly allowed to enter the filter component 12 for capture and filtration, different areas of the filter component 12 will be covered with paint of different thicknesses, causing the airflow in the cavity 111 to become turbulent, thereby affecting the paint mist filtration effect and efficiency.

[0069] To address this issue, this application incorporates an air distribution component 17 between the air inlet 112 and the filter assembly 12. Airflow entering from the air inlet 112 must first pass through the air distribution component 17 before entering the filter assembly 12. The air distribution component 17 disperses the concentrated airflow entering from the air inlet 112, allowing it to flow evenly into the filter assembly 12. This prevents paint particles from concentrating and adhering to localized areas of the filter assembly 12, thus resolving the aforementioned defect of turbulent airflow in the cavity 111 and achieving the technical effect of improving paint mist filtration effect and efficiency.

[0070] Based on this, the size of the installation port is also larger than the size of the air distribution component 17, so that the air distribution component 17 can be disassembled and installed through the installation port, thereby realizing the independent disposal of the air distribution component 17 and avoiding the involvement of other structures in the disposal process. This achieves the technical effect of reducing the replacement and disposal costs of the paint mist filter 1 and reducing the pollution from the disposal of the paint mist filter 1.

[0071] Reference Figure 1 and Figure 2 In some embodiments of this application, the air inlet 112 and the filter assembly 12 are arranged opposite to each other in the first direction X. The air distribution assembly 17 includes a plurality of support frames 171, which are distributed in an array. Two adjacent support frames 171 are staggered in the first direction X.

[0072] The air inlet 112 and the air outlet 113 are arranged opposite to each other in the first direction X. The filter assembly 12 is arranged between the air inlet 112 and the air outlet 113, that is, the two sides of the filter assembly 12 are opposite to the air inlet 112 and the air outlet 113 respectively in the first direction X. The airflow does not need to change direction when flowing through the paint mist filter 1, thereby reducing the flow resistance of the airflow and improving the paint mist filtration efficiency and paint mist filtration effect.

[0073] Wherein, the first direction X corresponds to the thickness direction of the paint mist filter 1, the airflow enters the air inlet 112 from the front side of the paint mist filter 1, and finally exits from the air outlet 113 at the rear side of the paint mist filter 1.

[0074] Based on this, the air distribution component 17 includes multiple support frames 171. The support frames 171 are strip-shaped and are horizontally arranged between the air inlet 112 and the filter component 12. Specifically, the support frame 171 can be extended in the height direction of the paint mist filter 1, or the support frame 171 can be extended in the width direction of the paint mist filter 1, or a combination of both can be used.

[0075] Specifically, multiple support frames 171 are arrayed between the air inlet 112 and the filter assembly 12, that is, the air distribution assembly 17 includes multiple support frames 171 in the first direction X. The multiple support frames 171 can distribute the airflow step by step, thereby improving the uniformity of the gas flow.

[0076] In this case, when the extension directions of multiple support frames 171 are consistent, two adjacent support frames 171 in the first direction X are laterally staggered to ensure that the airflow can be dispersed a second time by the support frame 171 of the next layer after being dispersed by the previous layer of support frame 171, thereby improving the flow uniformity effect and optimizing the technical effect of the air field inside the cavity 111.

[0077] When multiple support frames 171 extend in different directions, the extension directions of two adjacent support frames 171 are different, forming a cross-staggered arrangement. This ensures that the airflow can be dispersed a second time by the next support frame 171 after being dispersed by the previous support frame 171, thereby improving the flow uniformity effect and optimizing the technical effect of the air field inside the cavity 111.

[0078] On the other hand, the support frame 171 can serve as the first barrier for collecting paint mist. When the airflow containing paint mist passes through the air inlet 112, some of the paint mist adheres to the support frame 171, and the remaining paint mist is dispersed by the support frame 171 and enters the filter assembly 12 evenly, thereby improving the adsorption capacity for paint mist and meeting the process requirements of the average vertical wind speed (0.30±0.05) m / s and uniform wind direction during painting. This ensures the quality of the car body painting and reduces the probability of defects such as orange peel, fogging, and particles on the paint surface.

[0079] Reference Figure 1 and Figure 2 In some embodiments of this application, the air distribution assembly 17 further includes a partition 172, which is used to separate at least two air ducts between the air inlet 112 and the filter assembly 12. The support frame 171 is connected to the partition 172 and is horizontally arranged in the air duct.

[0080] The air distribution component 17 also includes a partition plate 172, and multiple support frames 171 are fixed on the partition plate 172, so that the support frames 171 and the partition plate 172 form a module that can be disassembled and installed simultaneously, thereby reducing the difficulty of disassembling and installing the air distribution component 17 and improving the efficiency of disassembly and installation of the air distribution component 17.

[0081] The partition 172 is horizontally arranged between the air inlet 112 and the filter assembly 12. After assembly, the partition 172 separates at least two air ducts between the air inlet 112 and the filter assembly 12. Specifically, each air duct is arranged with an array of staggered support frames 171.

[0082] By setting up the partition 172, on the one hand, the uniformity of gas flow can be further improved by separating multiple air ducts, and on the other hand, the strength of the support frame 171 can be shortened, so that the support frame 171 can withstand the impact of airflow for a long time, extend the service life of the support frame 171, thereby achieving the technical effect of improving the airflow filtration effect and filtration efficiency, and reducing the failure rate of the air distribution component 17.

[0083] In an alternative embodiment, the partition 172 is horizontally arranged, and the partition 172 separates the air inlet 112 and the filter assembly 12 into two air ducts, one of which is an array of support brackets 171 arranged on the upper surface of the partition 172, and the other is an array of support brackets 171 arranged on the lower surface of the partition 172.

[0084] In one alternative embodiment, the support frame 171 is formed by corrugated paper, the air distribution component 17 is an integral structure with two layers, and there are three channels from the air inlet 112 to the filter component 12, and the three channels are staggered to ensure that the paint mist enters the inner cavity evenly. The support frame 171 made of corrugated paper can adsorb a small part of the paint mist as the first filter medium.

[0085] Reference Figure 2 and Figure 3 , Figure 3 This is a schematic diagram of the structure of the honeycomb paper layer 121 of the paint mist filter 1 according to an embodiment of this application. In some embodiments of this application, the filter assembly 12 includes a honeycomb paper layer 121 and a filter cotton layer 122. The honeycomb paper layer 121 and the filter cotton layer 122 are stacked between the air inlet 112 and the air outlet 113. The honeycomb paper layer 121 is close to the air inlet 112, and the filter cotton layer 122 is close to the air outlet 113.

[0086] The filter assembly 12 includes a honeycomb paper layer 121 and a filter cotton layer 122. The honeycomb paper layer 121 is located close to the air distribution assembly 17. After the airflow is dispersed by the air distribution assembly 17, it flows into the honeycomb paper layer 121. When the airflow flows through the air vents on the honeycomb paper layer 121, some of the paint mist is captured by the honeycomb paper layer 121 to complete the initial filtration of the paint mist.

[0087] The filter cotton layer 122 is disposed between the honeycomb paper layer 121 and the air outlet 113. Compared with the honeycomb paper layer 121, the pores in the filter cotton layer 122 are smaller, and the paint mist remaining in the airflow can be filtered out by the filter cotton layer 122 to complete the medium and high efficiency filtration of paint mist.

[0088] It can be seen that by setting the honeycomb paper layer 121 and the filter cotton layer 122, dual filtration of paint mist can be achieved, thereby improving the paint mist filtration effect, reducing the damage of paint mist to the fresh air equipment 4, and reducing the pollution of paint mist to the environment, thus achieving the technical effect of improving the filtration performance of the paint mist filter 1.

[0089] In one alternative embodiment, the honeycomb paper layer 121 is composed of corrugated paper spliced ​​together in a honeycomb shape, with overlapping layers and ventilation holes in the middle to increase the filtration area of ​​paint mist and improve the filtration effect. Larger paint mist particles (above 10 micrometers) are adsorbed in the honeycomb paper layer 121, while smaller particles enter the filter cotton layer 122 through the ventilation holes. The filter cotton layer 122 is made of primary G3 synthetic fiber filter cotton.

[0090] The filter cotton layer 122 is the final filter medium. The filter cotton layer 122 has a filtration efficiency of 85% for paint mist particles with a diameter of 5 to 10 micrometers. After filtration, it can provide high-cleanliness air for the paint spraying workshop 3 for recycling.

[0091] In one alternative embodiment, the honeycomb paper layer 121 has a total of 60 layers on a single surface, totaling 9 layers. The diameter of the inscribed circle of the vent holes on it is greater than or equal to 2.5 mm and less than or equal to 3.5 mm. Specifically, 2.5 mm, 3 mm, 3.2 mm or 3.5 mm can be selected to improve the primary capture effect of the honeycomb paper layer 121 on paint mist.

[0092] The thickness of the filter cotton layer 122 is greater than or equal to 8 mm and less than or equal to 15 mm. Specifically, the thickness can be selected as 8.5 mm, 10 mm, 14 mm or 15 mm, so that the filtration efficiency of particles with a diameter of 5 micrometers to 10 micrometers can reach 85%.

[0093] In one alternative embodiment, the paint mist filter 1 can be used in the following scenarios: intermediate coat / color paint: water-based coatings, varnish: 1K / 2K oil-based coatings, and small coatings: low-temperature oil-based coatings.

[0094] The selectable operating environment parameters for the paint mist filter 1 include: temperature: 10℃ to 40℃, relative humidity: 25% to 90%.

[0095] All materials used in the paint mist filter 1 must be certified for fire retardancy of building material grade B1 to improve safety and stability.

[0096] The operating parameters of the paint mist filter 1 in this application can meet the following technical requirements: The single-section flow rate reaches 3400m³ / h to 7000m³ / h, and the cross-section wind speed is ≤2m / s; The initial resistance pressure drop and the final overall pressure drop are not less than 500Pa. The pressure resistance is 1500Pa. When the paint accumulation reaches 15kg, the internal structure will not shrink, collapse, or deform severely due to moisture or paint accumulation. Paint capacity standards: Clear coat ≥12KG; Intermediate coat and color coat ≥10KG; Primer ≥8KG.

[0097] Specifically, the filter assembly 12 and the air distribution assembly 17 are bonded to the inside of the housing 11.

[0098] Reference Figure 4 , Figure 4 This is a schematic diagram of the paint mist filtration system 2 according to an embodiment of this application, wherein... Figure 4 The arrows in the diagram indicate the direction of airflow. In some embodiments of this application, a paint mist filtration system 2 is proposed. The paint mist filtration system 2 includes: a cabinet 21, the opening of which is used to connect to the exhaust channel 31 of the paint spraying workshop 3, and the outlet of which is used to connect to the fresh air equipment 4; and a plurality of paint mist filters 1 as described in any of the foregoing embodiments, which are disposed in the cabinet 21 and used to filter paint mist between the exhaust channel 31 and the fresh air equipment 4.

[0099] In this embodiment, a paint mist filtration system 2 is defined, which includes the paint mist filter 1 in any of the above embodiments. Therefore, the paint mist filtration system 2 has the advantages of the paint mist filter 1 in any of the above embodiments and can achieve the technical effects that the paint mist filter 1 in any of the above embodiments can achieve. To avoid repetition, it will not be described again here.

[0100] Based on this, the paint mist filter 1 is used as a filter unit in the paint mist filtration system 2. Multiple paint mist filters 1 are evenly arranged in the cabinet 21. The opening of the cabinet 21 is connected to the exhaust channel 31 of the paint spraying workshop 3, and the outlet of the cabinet 21 is connected to the duct connecting to the fresh air equipment 4. After the fresh air equipment 4 is turned on, it draws gas from the paint spraying workshop 3 through the duct, cabinet 21, and exhaust channel 31. The paint mist mixed in the gas is filtered out by the paint mist filter 1. When the paint mist filtration system 2 detects that the flow rate of the gas entering and leaving the cabinet 21 has dropped to the flow rate threshold, it can... A replacement prompt for paint mist filter 1 is issued. Subsequently, the operator first disconnects the cabinet 21 from the upper and lower wind sides, removes multiple paint mist filters 1 from the opening, and then opens the cover 13 on the paint mist filter 1 in sequence and replaces it with a new filter assembly 12. After the filter assembly 12 is replaced, the paint mist filter 1 is refilled into the cabinet 21 to realize the recycling of the housing 11 and cover 13 of the paint mist filter 1. This solves the technical problems of high replacement and disposal costs of paint mist filter 1 and serious pollution in the related technology.

[0101] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A paint mist filter (1), characterized in that, include: The housing (11) includes a cavity (111) and an air inlet (112), an air outlet (113) and a mounting port communicating with the cavity (111); A filter assembly (12) is disposed in the cavity (111), and the mounting port is used to install the filter assembly (12) into the cavity (111) and to remove the filter assembly (12) from the cavity (111); The cover (13) is closable and can be installed at the mounting port.

2. The paint mist filter (1) as described in claim 1, characterized in that, The cover (13) is detachably connected to the shell (11).

3. The paint mist filter (1) as described in claim 2, characterized in that, The housing (11) is provided with a first magnetic element (14), and the cover (13) is provided with a second magnetic element (15). The first magnetic element (14) and the second magnetic element (15) are magnetically connected.

4. The paint mist filter (1) as described in claim 3, characterized in that, The housing (11) includes a bottom plate (115) and a side plate (116). The bottom plate (115) and the side plate (116) enclose the cavity (111). The mounting port is formed on the side of the side plate (116) away from the bottom plate (115). The air inlet (112) and the air outlet (113) are located on the side plate (116). The first magnetic element (14) is disposed on the side plate (116). The cover (13) includes a shielding section (131) and a connecting section (132), the shielding section (131) and the connecting section (132) are rotatably connected, the shielding section (131) covers the mounting opening, the connecting section (132) is located on the periphery of the side plate (116), and the second magnetic element (15) is provided on the connecting section (132).

5. The paint mist filter (1) as described in claim 1, characterized in that, The inner surfaces of the housing (11) and the cover (13) are covered with a protective film (16) for blocking paint mist.

6. The paint mist filter (1) as described in claim 1, characterized in that, It also includes an air distribution component (17), which is disposed in the cavity (111) and located between the air inlet (112) and the filter component (12), for dispersing the airflow between the air inlet (112) and the filter component (12); The mounting port is also used to install the air distribution assembly (17) into the cavity (111) and to remove the air distribution assembly (17) from the cavity (111).

7. The paint mist filter (1) as described in claim 6, characterized in that, The air inlet (112) and the filter assembly (12) are arranged opposite each other in the first direction (X). The air distribution assembly (17) includes multiple support frames (171), which are arranged in an array. Two adjacent layers of support frames (171) in the first direction (X) are staggered.

8. The paint mist filter (1) as described in claim 7, characterized in that, The air distribution assembly (17) further includes a partition (172) for separating at least two air ducts between the air inlet (112) and the filter assembly (12). The support frame (171) is connected to the partition (172) and is horizontally arranged in the air duct.

9. The paint mist filter (1) as described in any one of claims 1 to 8, characterized in that, The filter assembly (12) includes a honeycomb paper layer (121) and a filter cotton layer (122). The honeycomb paper layer (121) and the filter cotton layer (122) are stacked between the air inlet (112) and the air outlet (113). The honeycomb paper layer (121) is close to the air inlet (112), and the filter cotton layer (122) is close to the air outlet (113).

10. A paint mist filtration system (2), characterized in that, include: Cabinet (21), the opening of cabinet (21) is used to connect to the exhaust channel (31) of the paint spraying workshop (3), and the outlet of cabinet (21) is used to connect to the fresh air equipment (4). Multiple paint mist filters (1) as described in any one of claims 1 to 9 are disposed in the cabinet (21) for filtering paint mist between the exhaust channel (31) and the fresh air device (4).

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