A UV coating plant exhaust gas treatment device
By eliminating the packing layer of the exhaust gas treatment device for UV coating equipment and adopting a design with baffles and flow guiding structures, the gas-liquid contact efficiency is improved, solving the problem of high packing layer cost and achieving the effect of reducing equipment cost and improving cleaning efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BOLUO COUNTY SHIWAN TOWN DONGXIANG PAINT CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-07-21
AI Technical Summary
In existing UV coating equipment exhaust gas treatment devices, the application cost of the filler layer is high, which leads to increased equipment purchase and maintenance costs and reduced production efficiency.
Design a waste gas treatment device for UV coating equipment. Eliminate the packing layer, use a partition and a first flow guiding structure to separate the inside of the shell, and perform spray treatment through a spray structure, including a spray head, a flow guiding structure and a fan, to improve gas-liquid contact efficiency and reduce washing liquid consumption.
By eliminating the packing layer, the utilization rate of the spray structure is improved, the contact between the washing liquid and the exhaust gas is increased, the cleaning efficiency is improved, and the consumption of washing liquid and the treatment cost are reduced.
Smart Images
Figure CN224524359U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of waste gas treatment devices, and in particular to a waste gas treatment device for UV coating equipment. Background Technology
[0002] The waste gas generated during the curing process of UV coating equipment mainly includes volatile organic compounds (VOCs), a small amount of ozone (O3), and possible particulate matter. Common types of waste gas treatment devices for these pollutants include activated carbon adsorption devices, catalytic combustion devices, thermal combustion devices, photocatalytic oxidation devices, low-temperature plasma treatment devices, and spray towers. Among these, spray towers are inexpensive to operate and suitable for treating waste gas containing particulate matter and water-soluble gases. Combined with photocatalytic oxidation processes, they can simultaneously and effectively treat particulate matter, ozone, and VOCs in the waste gas, thereby effectively controlling the setup and application costs of UV coating equipment waste gas treatment devices.
[0003] Spray tower-type waste gas treatment devices generally include a spray layer, a packing layer, a circulating water tank, and a demister. The spray layer distributes the liquid, while the packing layer increases the gas-liquid contact area, ensuring sufficient contact between the washing liquid and the waste gas. The circulating water tank is used for adding the corresponding chemical washing liquid and for waste liquid treatment. Finally, the treated waste gas passes through the demister to remove entrained droplets, and is then discharged or transported to the next waste gas treatment process for further processing. The treatment efficiency of this type of waste gas treatment device depends on sufficient gas-liquid contact; however, the packing layer required to ensure sufficient gas-liquid contact significantly increases the equipment's purchase and maintenance costs and reduces production efficiency. Utility Model Content
[0004] Therefore, it is necessary to provide a UV coating equipment exhaust gas treatment device to address the technical problem of high application cost of filler layers in existing UV coating equipment exhaust gas treatment devices.
[0005] A UV coating equipment exhaust gas treatment device includes a shell, an input structure, a filter structure, a spray structure, and an output structure, all of which are disposed within the shell.
[0006] The input structure is located on one side wall at the top of the housing and is connected from the outside of the housing to the inside of the housing; the filter structure is located at one end of the top side inside the housing; the spray structure is located at one end of the bottom side inside the housing, opposite to the filter structure; the output structure is located on one side wall at the bottom of the housing and is connected from the inside of the housing to the outside of the housing; the input structure, filter structure, spray structure and output structure are connected in sequence.
[0007] The spray structure includes a partition, several spray heads, and a first flow guiding structure. The partition and the first flow guiding structure are disposed on the bottom side of the filter structure. One edge of the partition is connected to one side of the first flow guiding structure, and the other side of the first flow guiding structure and the remaining edges of the partition are respectively connected to the inner wall of the shell. Thus, the partition combined with the first flow guiding structure can divide the bottom space of the filter structure into a relatively independent buffer chamber and a spray chamber. Several spray heads are disposed on the side surface of the partition facing the spray chamber.
[0008] The filter structure is connected to the buffer chamber; the output structure is connected to the spray chamber.
[0009] In one embodiment, the partition is inclined at a preset angle relative to the direction of gravity, with the lower end of the partition connected to the first flow guiding structure and the upper end of the partition connected to the output structure.
[0010] In one embodiment, the aforementioned first flow guiding structure is provided with an L-shaped guide channel and a plurality of first fans. One end of the L-shaped guide channel is connected to a buffer chamber, and the other end of the L-shaped guide channel is connected to a spray chamber. The plurality of first fans are installed at one end of the L-shaped guide channel connected to the buffer chamber, and the output side of each first fan is disposed away from the buffer chamber.
[0011] In one embodiment, the spray structure further includes a second flow guiding structure, which is disposed on the opposite side of the first flow guiding structure and connected to the inner wall of the housing.
[0012] In one embodiment, the second flow guiding structure described above is provided with a plurality of second fans, the output side of which is arranged facing the spray head.
[0013] In one embodiment, the second flow guiding structure described above is further provided with a plurality of mounting seats, and a plurality of second fans are connected to the inner wall of the housing through corresponding mounting seats. Furthermore, each second fan is movably connected to the mounting seat through a rotating shaft.
[0014] In one embodiment, the spray structure further includes a drainage structure disposed on the bottom wall of the spray chamber, and the drainage structure is connected from the inside of the housing to the outside of the housing.
[0015] In one embodiment, the above-described filtration structure includes a filter plate and a third fan. The filter plate is disposed between the top walls of the partition housing; the third fan is disposed on the inner surface of the top wall of the housing, and the output side of the third fan is disposed facing the filter plate.
[0016] In one embodiment, the above-described input structure is connected to the filter cavity.
[0017] In one embodiment, the above-described input structure is configured as an input pipe.
[0018] In one embodiment, the above-mentioned output structure is provided with an output cavity, a plurality of fourth fans and an output pipe. The high end of the output cavity corresponding to the partition is located on the outer side wall of the housing, and one end of the output cavity is connected to the inside of the spray cavity, and the other end of the output cavity is connected to the output pipe. The plurality of fourth fans are provided at the connection between the output cavity and the spray cavity, and the output side of each fourth fan is located away from the spray cavity.
[0019] The aforementioned UV coating equipment exhaust gas treatment device filters the exhaust gas through a filtration structure and then sprays it through a spray structure to achieve preliminary treatment and discharge of the production exhaust gas. Specifically, after the exhaust gas is filtered by the filtration structure, it is input into the buffer chamber. The first flow guiding structure drives and guides the exhaust gas in the buffer chamber to the spray chamber. At this time, several spray heads atomize and spray the washing liquid to further wash and absorb particulate matter and water-soluble gases in the exhaust gas. Then, the exhaust gas that has completed the spray treatment is output through the output structure. Compared with traditional exhaust gas treatment devices, the exhaust gas treatment device of this utility model eliminates the packing layer. By setting baffles and the first flow guiding structure to separate the treatment area inside the shell and guide the flow direction of the exhaust gas, the utilization rate of the spray structure can be effectively improved, the contact between the washing liquid and the exhaust gas can be increased, the washing liquid utilization rate and cleaning efficiency can be improved, and the washing liquid consumption can be reduced, thereby reducing the cost of exhaust gas treatment. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the exhaust gas treatment device for a UV coating equipment in one embodiment; Figure 2 This is a schematic diagram of the exploded structure of the exhaust gas treatment device for a UV coating equipment in one embodiment; Figure 3 This is a schematic diagram of the exhaust gas treatment device for a UV coating equipment in one embodiment; Figure 4 for Figure 3 AA section view in the image. Detailed Implementation
[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0026] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0027] Please see Figures 1 to 4This utility model discloses a UV coating equipment exhaust gas treatment device 1, which includes a housing 10, an input structure 20, a filter structure 30, a spray structure 40, and an output structure 50. The input structure 20, filter structure 30, spray structure 40, and output structure 50 are all disposed within the housing 10. Specifically, the input structure 20 is disposed on one side wall of the top of the housing 10 and connects to the interior of the housing 10 from the outside; the filter structure 30 is disposed at one top end inside the housing 10; the spray structure 40 is disposed at one bottom end inside the housing 10 opposite to the filter structure 30; and the output structure 50 is disposed on one side wall of the bottom of the housing 10 and connects to the outside of the housing 10 from the inside. Based on the above arrangement, the input structure 20, filter structure 30, spray structure 40, and output structure 50 are sequentially connected, allowing the exhaust gas generated during the production process of the UV coating equipment to be treated to be filtered by the filter structure 30 and then sprayed by the spray structure 40, achieving preliminary treatment and discharge of the production exhaust gas. Specifically, the spray structure 40 includes a partition 41, a plurality of spray heads 42, and a first flow guiding structure 43. The partition 41 and the first flow guiding structure 43 are disposed on the bottom side of the filter structure 30. One edge of the partition 41 is connected to one side of the first flow guiding structure 43, and the other side of the first flow guiding structure 43 and the remaining edges of the partition 41 are respectively connected to the inner wall of the housing 10. Thus, the partition 41 combined with the first flow guiding structure 43 can divide the bottom space of the filter structure 30 into a relatively independent buffer chamber a and a spray chamber b. A plurality of spray heads 42 are disposed on the side surface of the partition 41 facing the spray chamber b. Based on the above configuration, more specifically, the filter structure 30 is connected to the buffer chamber a; the output structure 50 is connected to the spray chamber b. After being filtered by the filter structure 30, the exhaust gas is input into the buffer chamber a. The first flow guiding structure 43 drives and guides the exhaust gas in the buffer chamber a to the spray chamber b. At this time, several spray heads 42 spray the washing liquid atomized to further wash and absorb the particulate matter and water-soluble gases in the exhaust gas. Then, the exhaust gas that has been sprayed is output through the output structure 50. It can be seen that the exhaust gas treatment device of this utility model can effectively improve the utilization rate of the spray structure 40 by setting the partition 41 and the first flow guiding structure 43 to separate the treatment area inside the shell 10 and guide the flow direction of the exhaust gas. Specifically, it can improve the contact between the washing liquid and the exhaust gas, improve the washing liquid utilization rate and cleaning efficiency, and reduce the washing liquid consumption, thereby reducing the cost of exhaust gas treatment.
[0028] Furthermore, in one embodiment, the baffle 41 is inclined at a preset angle relative to the direction of gravity. The lower end of the baffle 41 is connected to the first flow guiding structure 43, and the higher end of the baffle 41 is connected to the output structure 50. Thus, the baffle 41 can guide the light waste gas components, which is conducive to the natural discharge of the light components.
[0029] Furthermore, the first flow guiding structure 43 is provided with an L-shaped guide channel 431 and a plurality of first fans 432. One end of the L-shaped guide channel 431 is connected to the buffer chamber a, and the other end of the L-shaped guide channel 431 is connected to the spray chamber b. The plurality of first fans 432 are installed at the end of the L-shaped guide channel 431 that is connected to the buffer chamber a, and the output side of each first fan 432 is set away from the buffer chamber a, so that the first flow guiding structure 43 can drive and guide the exhaust gas into the spray chamber b.
[0030] Furthermore, the spray structure 40 also includes a second flow guiding structure 44, which is disposed on the opposite side of the first flow guiding structure 43 and connected to the inner wall of the housing 10 to guide the exhaust gas to a plurality of spray heads 42. In one embodiment, the second flow guiding structure 44 is provided with a plurality of second fans 441, the output side of which faces the spray head 42. Thus, after the exhaust gas is delivered to the spray chamber b, the second flow guiding structure 44 can blow the exhaust gas toward the spray head 42 to promote sufficient contact between the exhaust gas and the washing liquid. In another embodiment, the second flow guiding structure 44 is also provided with a plurality of mounting seats 442. The plurality of second fans 441 are connected to the inner wall of the housing 10 through corresponding mounting seats 442. Each second fan 441 is movably connected to the mounting seat 442 through a rotating shaft, so that the second fan 441 can adjust its angle according to the setting of the spray head 42, thereby adjusting the guiding direction of the exhaust gas by the second flow guiding structure 44.
[0031] Furthermore, the spray structure 40 also includes a drain structure 45, which is disposed on the bottom wall of the spray chamber b and is connected from the inside of the housing 10 to the outside of the housing 10, so that the washing liquid can be discharged and recycled through the drain structure 45.
[0032] Furthermore, the filter structure 30 includes a filter plate 31 and a third fan 32. The filter plate 31 is disposed between the top walls of the housing 10 and the partition 41, thereby forming a filter cavity c between the top walls of the housing 10. The third fan 32 is disposed on the inner surface of the top wall of the housing 10, and the output side of the third fan 32 faces the filter plate 31. Based on the above configuration, specifically, the input structure 20 is connected to the filter cavity c. The exhaust gas input into the filter cavity c by the input structure 20 is blown towards the filter plate 31 by the third fan 32, and then enters the buffer cavity a through the filter plate 31. In one embodiment, the filter plate 31 is arranged parallel to the partition 41.
[0033] Furthermore, in one embodiment, the input structure 20 is configured as an input conduit for exhaust gas transport.
[0034] Furthermore, the output structure 50 is provided with an output cavity d, a plurality of fourth fans 51, and an output pipe 52. The output cavity d is located on the outer side of the side wall of the housing 10 at the high end of the partition plate 41, and one end of the output cavity d is connected to the inside of the spray chamber b, while the other end of the output cavity d is connected to the output pipe 52. The plurality of fourth fans 51 are located at the connection between the output cavity d and the spray chamber b, and the output side of each fourth fan 51 is positioned away from the spray chamber b, so as to facilitate the exhaust gas that has completed the spray treatment in the spray chamber b to be discharged from the exhaust gas treatment device through the output cavity d and the output pipe 52.
[0035] In summary, the UV coating equipment exhaust gas treatment device disclosed in this utility model uses a filtration structure for filtration and then a spray structure for spraying to achieve preliminary treatment and discharge of production exhaust gas. Specifically, after the exhaust gas is filtered by the filtration structure, it is input into the buffer chamber. The first flow guiding structure drives and guides the exhaust gas in the buffer chamber to the spray chamber. At this time, several spray heads atomize and spray the washing liquid to further wash and absorb particulate matter and water-soluble gases in the exhaust gas. Then, the exhaust gas that has completed the spraying treatment is output through the output structure. Compared with traditional exhaust gas treatment devices, the exhaust gas treatment device of this utility model eliminates the packing layer. By setting baffles and the first flow guiding structure to separate the treatment area inside the shell and guide the flow direction of the exhaust gas, the utilization rate of the spray structure can be effectively improved, the contact between the washing liquid and the exhaust gas can be increased, the washing liquid utilization rate and cleaning efficiency can be improved, and the washing liquid consumption can be reduced, thereby reducing the cost of exhaust gas treatment.
[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0037] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A waste gas treatment device for UV coating equipment, characterized in that, include: The housing, input structure, filter structure, spray structure, and output structure are all housed within the housing. The input structure is located on one side wall at the top of the housing and is connected from the outside of the housing to the inside of the housing; the filter structure is located at one end of the top side inside the housing; the spray structure is located at one end of the bottom side inside the housing, opposite to the filter structure; the output structure is located on one side wall at the bottom of the housing and is connected from the inside of the housing to the outside of the housing; the input structure, filter structure, spray structure and output structure are connected in sequence. The spray structure includes a partition, several spray heads, and a first flow guiding structure. The partition and the first flow guiding structure are disposed on the bottom side of the filter structure. One edge of the partition is connected to one side of the first flow guiding structure, and the other side of the first flow guiding structure and the remaining edges of the partition are respectively connected to the inner wall of the shell. Thus, the partition combined with the first flow guiding structure can divide the bottom space of the filter structure into a relatively independent buffer chamber and a spray chamber. Several spray heads are disposed on the side surface of the partition facing the spray chamber. The filter structure connects to the buffer chamber; The output structure is connected to the spray chamber.
2. The UV coating equipment exhaust gas treatment device according to claim 1, characterized in that, The partition is inclined at a preset angle relative to the direction of gravity. The lower end of the partition is connected to the first flow guiding structure, and the upper end of the partition is connected to the output structure.
3. The UV coating equipment exhaust gas treatment device according to claim 2, characterized in that, The first flow guiding structure consists of an L-shaped guide channel and several first fans. One end of the L-shaped guide channel is connected to a buffer chamber, and the other end of the L-shaped guide channel is connected to a spray chamber. Several first fans are installed at the end of the L-shaped guide channel that is connected to the buffer chamber, and the output side of each first fan is set away from the buffer chamber.
4. The UV coating equipment exhaust gas treatment device according to claim 3, characterized in that, The spray structure also includes a second flow guiding structure, which is located on the opposite side of the first flow guiding structure and connected to the inner wall of the housing.
5. The UV coating equipment exhaust gas treatment device according to claim 4, characterized in that, The second flow guiding structure is equipped with several second fans, with the output side of the second fans facing the spray head.
6. The UV coating equipment exhaust gas treatment device according to claim 5, characterized in that, The second flow guiding structure is also provided with several mounting seats, and several second fans are connected to the inner wall of the housing through corresponding mounting seats. Furthermore, each second fan is movably connected to the mounting seat through a rotating shaft.
7. The UV coating equipment exhaust gas treatment device according to claim 6, characterized in that, The spray structure also includes a drainage structure, which is located on the bottom wall of the spray chamber and connects from the inside of the shell to the outside of the shell.
8. The UV coating equipment exhaust gas treatment device according to claim 7, characterized in that, The filtration structure includes filter plates and a third fan. The filter plates are disposed between the top walls of the partition housing. The third fan is disposed on the inner surface of the top wall of the housing, and the output side of the third fan faces the filter plates.
9. The UV coating equipment exhaust gas treatment device according to claim 8, characterized in that, The input structure is connected to the filter cavity.
10. The UV coating equipment exhaust gas treatment device according to claim 9, characterized in that, The output structure includes an output cavity, several fourth fans, and an output pipe. The high end of the output cavity corresponding to the partition is located on the outer side wall of the shell, and one end of the output cavity is connected to the inside of the spray cavity, while the other end of the output cavity is connected to the output pipe. Several fourth fans are located at the connection between the output cavity and the spray cavity, and the output side of each fourth fan faces away from the spray cavity.