A filter device for paint spray exhaust
By using clamping components to hold the glass fiber filter cotton, the problems of small contact area and difficult replacement in the existing technology are solved, achieving convenient replacement and increasing the contact area, thereby improving the filtration efficiency of paint spray exhaust gas.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JIAYUAN ENVIRONMENTAL PROTECTION TECH
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-12
AI Technical Summary
In the existing technology, glass fiber filter cotton has a small contact surface when filtering paint spray exhaust gas, and it is not convenient to replace and fix glass fiber filter cotton of different thicknesses.
The glass fiber filter cotton is held in place by clamping components, including a lower arc-shaped clamping mesh and an upper arc-shaped clamping mesh. The glass fiber filter cotton is fixed and replaced through a threaded column and sliding groove structure. The arc-shaped through groove and snap-in block structure avoids the difficulty of removing the threaded column and increases the contact area between the exhaust gas and the filter cotton.
It enables convenient replacement of glass fiber filter cotton and adaptable clamping for different thicknesses, increases the contact area between exhaust gas and filter cotton, and improves filtration efficiency.
Smart Images

Figure CN224346168U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of paint spraying exhaust gas treatment technology, specifically a paint spraying exhaust gas filtration device. Background Technology
[0002] Paint spraying exhaust gas is a mixture of toxic and harmful gases generated during industrial painting operations. It mainly contains volatile organic compounds (VOCs), paint mist particles, and odorous substances. It can be treated to meet emission standards through a combination of processes such as pretreatment, filtration, adsorption, and combustion.
[0003] In the existing technology, when filtering paint spraying exhaust gas, glass fiber filter cotton is generally used to filter and collect solid particles in the exhaust gas. However, in the existing technology, the glass fiber filter cotton is usually laid flat, which results in a small contact area between the exhaust gas and the glass fiber filter cotton. It is also inconvenient to replace the glass fiber filter cotton and it is impossible to fix glass fiber filter cotton of different thicknesses.
[0004] Therefore, this utility model provides a filtration device for paint spraying exhaust gas. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology and solve the problems raised in the background art.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The present utility model provides a filtration device for paint spraying exhaust gas, including a filter box; an exhaust pipe is fixedly connected to the top of the filter box; an intake pipe is fixedly connected to the bottom of the filter box; a set of intake pipes is connected to a first pipe; a set of exhaust pipes is connected to a second pipe; a set of glass fiber filter cotton is provided inside the filter box; the glass fiber filter cotton is clamped by a clamping member.
[0007] Preferably, the clamping member includes a lower arc-shaped clamping mesh; lower fixing plates are fixedly connected to both side walls of the lower arc-shaped clamping mesh; an upper arc-shaped clamping mesh is provided above the lower arc-shaped clamping mesh, and upper fixing plates are fixedly connected to both side walls of the upper arc-shaped clamping mesh; glass fiber filter cotton is placed between the upper arc-shaped clamping mesh and the lower arc-shaped clamping mesh.
[0008] Preferably, the upper fixing plate is provided with a first threaded post, and the first threaded post penetrates through the upper fixing plate, and the bottom end of the first threaded post is threadedly connected to the lower fixing plate; multiple pairs of symmetrically distributed first sliding grooves are provided on both side walls of the filter box; the upper fixing plate and the lower fixing plate slide within the first sliding grooves.
[0009] Preferably, a set of arc-shaped through grooves are formed on the side wall of the filter box; horizontal through grooves are formed at both ends of the arc-shaped through grooves; snap-in through grooves are formed on the upper and lower surfaces of the horizontal through grooves; snap-in blocks slide in the arc-shaped through grooves, the pair of horizontal through grooves and the snap-in through grooves; the lower arc-shaped clamping mesh is fixedly connected to the arc-shaped surface of the snap-in block on the side wall; an arc-shaped plate is fixedly connected to the side wall of the snap-in block; the arc-shaped plate is bolted to the side wall of the filter box.
[0010] Preferably, the lower fixing plate has a first through groove; the upper fixing plate has a guide plate fixedly connected to it; a set of measuring lines are provided on the side wall of the guide plate; the guide plate and the first through groove are positioned corresponding to each other.
[0011] Preferably, a set of L-shaped tubes is provided on the side wall of the filter box, and the L-shaped tubes are connected to the filter box; the set of L-shaped tubes and glass fiber filter cotton are distributed alternately; a connecting tube is threaded onto the L-shaped tube; and a sampling bottle is fixedly connected to the connecting tube.
[0012] Preferably, both the connecting pipe and the L-shaped pipe are equipped with a switching valve.
[0013] The filter box has a frustum-shaped surface at both the top and bottom.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. The present invention discloses a filtration device for paint spraying exhaust gas, wherein glass fiber filter cotton is placed on the lower arc-shaped clamping net, and then the upper arc-shaped clamping net is covered on the glass fiber filter cotton. Then, the first threaded post at the four corners of the upper fixing plate is rotated, and the upper arc-shaped clamping net and the lower arc-shaped clamping net are closed to clamp the glass fiber filter cotton, which facilitates replacement and clamping of glass fiber filter cotton of different thicknesses.
[0016] 2. The paint spraying exhaust gas filtration device of this utility model, when removed, the bolts on the arc plate are removed, and then the arc plate and the snap-fit block are pulled outward. At the same time, due to the snap-fit through groove, the situation where the first threaded post cannot be removed can be avoided. Meanwhile, the lower arc clamping mesh is fixed on the bottom end of the side wall of the snap-fit block. Only the upper arc clamping mesh can be removed from the lower arc clamping mesh. Attached Figure Description
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is the main view of the filter box. Figure 1 ;
[0019] Figure 3 This is the main view of the filter box. Figure 2 ;
[0020] Figure 4This is a cross-sectional view of the filter box;
[0021] Figure 5 This is an exploded view of the filter box;
[0022] Figure 6 This is an exploded view of the clamping component;
[0023] In the diagram: 1. Filter box; 11. Air outlet pipe; 12. Air inlet pipe; 13. First pipe; 14. Second pipe; 15. Glass fiber filter cotton; 2. Lower arc-shaped clamping mesh; 21. Upper arc-shaped clamping mesh; 22. Lower fixing plate; 23. Upper fixing plate; 24. First threaded post; 25. First sliding groove; 3. Arc-shaped plate; 31. Arc-shaped through groove; 32. Horizontal through groove; 33. Insertion block; 34. Insertion through groove; 35. Bolt; 4. First through groove; 41. Guide plate; 42. Measuring line; 5. L-shaped tube; 51. Sampling bottle; 52. Connecting pipe. Detailed Implementation
[0024] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.
[0025] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0026] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0027] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.
[0028] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order between these entities or operations.
[0029] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar open-ended expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0030] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0031] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0032] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral arrangement; it can be a direct connection or an indirect connection through an intermediate medium; it can be a relationship of two components combined together, an interaction relationship between two components, or a connection within two structures. Those skilled in the art to which this application pertains can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.
[0033] like Figures 1 to 6 As shown, the present invention discloses a filtration device for paint spraying exhaust gas, comprising a filter box 1; an exhaust pipe 11 is fixedly connected to the top of the filter box 1; an intake pipe 12 is fixedly connected to the bottom of the filter box 1; a set of intake pipes 12 are connected to a first pipe 13; a set of exhaust pipes 11 are connected to a second pipe 14; a set of glass fiber filter cotton 15 is provided inside the filter box 1; the glass fiber filter cotton 15 is held by a clamping member; in the prior art, when filtering paint spraying exhaust gas, the solid particles in the exhaust gas are generally filtered and collected by the glass fiber filter cotton 15. However, in the prior art, the glass fiber filter cotton 15 is generally laid flat, resulting in a small contact area between the exhaust gas and the glass fiber filter cotton 15. It is also inconvenient to replace the glass fiber filter cotton 15 and it is impossible to fix glass fiber filter cotton 15 of different thicknesses. Therefore, in operation, the present invention places the glass fiber filter cotton 15 in the filter box 1 by clamping member, and the glass fiber filter cotton 15 can be taken out and replaced by clamping member, which is simple and convenient.
[0034] The clamping component includes a lower arc-shaped clamping mesh 2; lower fixing plates 22 are fixedly connected to both side walls of the lower arc-shaped clamping mesh 2; an upper arc-shaped clamping mesh 21 is provided above the lower arc-shaped clamping mesh 2, and upper fixing plates 23 are fixedly connected to both side walls of the upper arc-shaped clamping mesh 21; glass fiber filter cotton 15 is placed between the upper arc-shaped clamping mesh 21 and the lower arc-shaped clamping mesh 2;
[0035] The upper fixed plate 23 is provided with a first threaded post 24, and the first threaded post 24 penetrates the upper fixed plate 23. The bottom end of the first threaded post 24 is threadedly connected to the lower fixed plate 22. Multiple pairs of symmetrically distributed first sliding grooves 25 are provided on both side walls of the filter box 1. The upper fixed plate 23 and the lower fixed plate 22 slide in the first sliding grooves 25.
[0036] During operation, the glass fiber filter cotton 15 is placed on the lower arc-shaped clamping net 2, and then the upper arc-shaped clamping net 21 is placed on top of the glass fiber filter cotton 15. Then, the first threaded post 24 at the four corners of the upper fixing plate 23 is rotated, and the upper arc-shaped clamping net 21 and the lower arc-shaped clamping net 2 close together to clamp the glass fiber filter cotton 15, which facilitates replacement and clamping of glass fiber filter cotton 15 of different thicknesses. At the same time, the arc shape of the upper arc-shaped clamping net 21 and the lower arc-shaped clamping net 2 increases the contact area between the glass fiber filter cotton 15 and the exhaust gas.
[0037] A set of arc-shaped through grooves 31 are provided on the side wall of the filter box 1; horizontal through grooves 32 are provided at both ends of the arc-shaped through grooves 31; snap-fit through grooves 34 are provided on the upper and lower surfaces of the horizontal through grooves 32; snap-fit blocks 33 slide in the arc-shaped through grooves 31, the pair of horizontal through grooves 32 and the snap-fit through grooves 34; the lower arc-shaped clamping mesh 2 is fixed to the arc-shaped surface of the snap-fit block 33 on the side wall; an arc-shaped plate 3 is fixed to the side wall of the snap-fit block 33; the arc-shaped plate 3 is connected to the side wall of the filter box 1 by bolts 35;
[0038] During operation, when removing the device, remove the bolts 35 on the arc plate 3, and then pull the arc plate 3 and the snap-fit block 33 outward. At the same time, due to the snap-fit through groove 34, the first threaded post 24 can be prevented from being unable to be removed. Meanwhile, the lower arc clamping net 2 is fixed to the bottom end of the side wall of the snap-fit block 33. Only the upper arc clamping net 21 can be removed from the lower arc clamping net 2.
[0039] The lower fixed plate 22 has a first through groove 4; the upper fixed plate 23 has a guide plate 41 fixedly connected to it; the guide plate 41 has a set of measuring lines 42 on its side wall; the guide plate 41 and the first through groove 4 are in corresponding positions; during operation, the closing distance between the upper arc-shaped filter screen and the lower arc-shaped filter screen can be seen intuitively by using the guide plate 41 and the measuring lines 42.
[0040] A set of L-shaped tubes 5 are provided on the side wall of the filter box 1, and the L-shaped tubes 5 are connected to the filter box 1; the set of L-shaped tubes 5 and glass fiber filter cotton 15 are distributed alternately; a connecting tube 52 is threadedly connected to the L-shaped tubes 5; a sampling bottle 51 is fixedly connected to the connecting tube 52.
[0041] Both the connecting pipe 52 and the L-shaped pipe 5 are equipped with switching valves;
[0042] During operation, the sampling bottle 51 is designed to facilitate the collection of gas between adjacent glass fiber filter cotton 15, so as to make it easier to judge the filtration effect of glass fiber filter cotton 15. The switch valve is designed to not sample continuously, but to sample only when needed.
[0043] The filter box 1 has a frustum-shaped surface at both the top and bottom.
[0044] Working principle: Place the glass fiber filter cotton 15 on the lower arc-shaped clamping mesh 2, then cover the glass fiber filter cotton 15 with the upper arc-shaped clamping mesh 21. Then rotate the first threaded posts 24 at the four corners of the upper fixing plate 23, and the upper arc-shaped clamping mesh 21 and the lower arc-shaped clamping mesh 2 will close together, clamping the glass fiber filter cotton 15, which is convenient for replacement and clamping glass fiber filter cotton 15 of different thicknesses. When removing it, remove the bolts 35 on the arc-shaped plate 3, and then pull the arc-shaped plate 3 and the locking block 33 outward. At the same time, due to the locking through groove 34, the first threaded posts 24 can be prevented from being removed. 4. In cases where removal is not possible, the lower arc-shaped clamping net 2 is fixed to the bottom of the side wall of the inserting block 33. Only the upper arc-shaped clamping net 21 can be removed from the lower arc-shaped clamping net 2. With the guide plate 41 and the measuring line 42, the closing distance between the upper and lower arc-shaped filter nets can be seen intuitively. The sampling bottle 51 facilitates the collection of gas between adjacent glass fiber filter cotton 15 to facilitate the judgment of the filtration effect of the glass fiber filter cotton 15. The switch valve is designed so that sampling is not continuous but only performed when needed.
[0045] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.
Claims
1. A filtration device for paint spraying exhaust gas, characterized in that, The filter includes a filter box; an air outlet pipe is fixedly connected to the top of the filter box; an air inlet pipe is fixedly connected to the bottom of the filter box; a set of air inlet pipes is connected to a first pipe; a set of air outlet pipes is connected to a second pipe; a set of glass fiber filter cotton is provided inside the filter box; the glass fiber filter cotton is held by a clamping device.
2. The filtration device for paint spraying exhaust gas according to claim 1, characterized in that, The clamping component includes a lower arc-shaped clamping mesh; lower fixing plates are fixedly connected to both side walls of the lower arc-shaped clamping mesh; an upper arc-shaped clamping mesh is provided above the lower arc-shaped clamping mesh, and upper fixing plates are fixedly connected to both side walls of the upper arc-shaped clamping mesh; glass fiber filter cotton is placed between the upper arc-shaped clamping mesh and the lower arc-shaped clamping mesh.
3. The filtration device for paint spraying exhaust gas according to claim 2, characterized in that, The upper fixed plate is provided with a first threaded post, which penetrates the upper fixed plate and the bottom end of the first threaded post is threaded to the lower fixed plate; multiple pairs of symmetrically distributed first sliding grooves are opened on both sides of the filter box; the upper fixed plate and the lower fixed plate slide in the first sliding grooves.
4. The filtration device for paint spraying exhaust gas according to claim 3, characterized in that, Each side wall of the filter box is provided with a set of arc-shaped through grooves; each end of the arc-shaped through grooves is provided with a horizontal through groove; each horizontal through groove is provided with a snap-in through groove on its upper and lower surfaces; a snap-in block slides in the arc-shaped through grooves, the pair of horizontal through grooves and the snap-in through groove; the lower arc-shaped clamping mesh is fixedly connected to the arc-shaped surface of the snap-in block on its side wall; an arc-shaped plate is fixedly connected to the side wall of the snap-in block; the arc-shaped plate is bolted to the side wall of the filter box.
5. The filtration device for paint spraying exhaust gas according to claim 4, characterized in that, The lower fixed plate has a first through groove; the upper fixed plate has a guide plate fixedly connected to it; a set of measuring lines are provided on the side wall of the guide plate; the guide plate and the first through groove are positioned corresponding to each other.
6. The filtration device for paint spraying exhaust gas according to claim 5, characterized in that, The filter box has a set of L-shaped tubes on its side wall, and the L-shaped tubes are connected to the filter box; the set of L-shaped tubes and glass fiber filter cotton are distributed alternately; the L-shaped tubes are threaded with connecting tubes; and sampling bottles are fixed to the connecting tubes.
7. The filtration device for paint spraying exhaust gas according to claim 6, characterized in that, Both the connecting pipe and the L-shaped pipe are equipped with switching valves.
8. The filtration device for paint spraying exhaust gas according to claim 7, characterized in that, The filter box has a frustum-shaped surface at both the top and bottom.