A demisting screen and a cigarette processing apparatus
By introducing a guide plate and spray assembly into the demister, the problem of limited dirt-holding capacity of existing demisters is solved, enabling convenient cleaning, extending service life, reducing maintenance costs, and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONGYUN HONGHE TOBACCO (GRP) CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-26
AI Technical Summary
The existing defogging mesh has a thin structure and limited dirt-holding capacity, which makes it easy for sticky impurities such as nicotine, tar, and flavoring ingredients to adhere. The cleaning operation is cumbersome and easily damaged, affecting production efficiency and cost.
Design a demisting net comprising a housing, a guide plate, filter media, and a spray assembly. The guide plate is arranged vertically, and the spray assembly is used to spray airflow and cleaning liquid. The cleaning liquid and impurities flow along the guide plate to the bottom of the housing for convenient cleaning.
It improves the ease of cleaning the defogger screen, reduces the chance of damage, extends its service life, and lowers maintenance costs.
Smart Images

Figure CN224404732U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cigarette production technology, and in particular to a defogging net and cigarette processing equipment. Background Technology
[0002] During cigarette production, various processing steps such as tobacco leaf curing, tobacco shredding, cigarette rolling, and filter production inevitably generate odorous gases containing various components. These odorous gases are essentially complex particulate mixtures, mainly including water vapor, nicotine, tar, flavorings, and various particulate matter. Nicotine has a strong, pungent odor, tar contains various harmful substances, flavorings volatilize at high temperatures to form specific odor molecules, and particulate matter may be suspended in the gas as aerosols. These components not only pollute the production environment and affect the health of operators, but may also adversely affect the normal operation of subsequent production equipment. For example, they can cause sticky impurities to adhere to equipment surfaces, affecting equipment precision and lifespan. Therefore, effective treatment of these odorous gases is urgently needed.
[0003] Currently, for the treatment of odorous gases in cigarette production, existing technologies typically employ devices such as demisters to intercept and filter particulate mixtures in the gas. However, existing demisters generally suffer from structural defects: their main structure is relatively thin, with only a few wire mesh corrugated packings serving as the primary filtration units. This structural design results in limited dirt-holding capacity, and during long-term use, sticky impurities such as nicotine, tar, and flavorings, as well as particulate matter, easily adhere to the gaps and surfaces of the wire mesh corrugated packings. When cleaning and maintenance of the demister is required, due to the tightly packed packings and their fixed connection to the main structure, effective cleaning on the equipment is difficult. Often, the entire demister must be completely removed from the equipment, or even disassembled. This process is not only cumbersome and time-consuming, but frequent disassembly can also damage the demister structure, affecting its filtration performance, severely reducing the convenience and efficiency of the production process, and increasing maintenance costs. Utility Model Content
[0004] The purpose of this utility model is to provide a defogging screen and cigarette processing equipment to solve the problem that the existing defogging screen has limited dirt-holding capacity and often requires the entire defogging screen to be completely removed from the equipment for cleaning, which is not only cumbersome to operate but may also damage the defogging screen structure due to frequent disassembly.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] On the one hand, a defogging mesh is provided, comprising:
[0007] A box body, wherein the box body has openings on both sides;
[0008] A flow guide plate is provided vertically inside the box and multiple flow guide plates are spaced apart horizontally. The flow guide plate is in the shape of a zigzag line.
[0009] The filter media is disposed between two adjacent guide plates and is used to adsorb water vapor and impurities in the gas.
[0010] A spray assembly is located at the top of the housing. The spray assembly is used to spray airflow and cleaning liquid onto the filter media. The cleaning liquid and impurities can flow along the guide plate to the bottom of the housing.
[0011] As an optional technical solution for the defogging screen, the guide plate includes multiple plate units arranged in a vertical direction. Each plate unit includes a vertical plate and an inclined plate. The vertical plate and the inclined plate are arranged alternately, and the inclination angles of two adjacent inclined plates are opposite. The free end of the vertical plate is connected to the inner wall of the box.
[0012] As an optional technical solution for the defogging screen, the guide plate also includes a bend, which corresponds one-to-one with the plate unit. The bend includes a vertical part and an inclined part. The inclined part has the same inclination angle as the inclined plate and is fixed to the inclined plate. The vertical part is parallel to the vertical plate, and the opening of the bend faces downward.
[0013] As an optional technical solution for the defogging net, the spray assembly includes a first pipe, a second pipe, a main spray pipe, branch spray pipes, and nozzles. The main spray pipe is connected to the branch spray pipes. Multiple branch spray pipes are located at the top of the housing and are spaced apart. Multiple nozzles are spaced apart on the branch spray pipes. Both the first pipe and the second pipe are connected to the main spray pipe. The first pipe is used to provide airflow to the main spray pipe, and the second pipe is used to provide cleaning liquid to the main spray pipe. The branch spray pipes spray atomized cleaning liquid onto the filter media through the nozzles.
[0014] As an optional technical solution for the defogging net, the spray assembly also includes a solenoid valve, which is located in the main spray pipeline to selectively clean the filter media.
[0015] As an optional technical solution for the defogging net, the defogging net also includes fixing members. The fixing members are multiple and are spaced apart along the vertical direction at the opening of the box. The fixing members are spaced apart along the horizontal direction with insertion slots. The insertion slots correspond one-to-one with the guide plates. The guide plates can be inserted into the insertion slots to be fixed to the fixing members.
[0016] As an optional technical solution for defogging nets, the distance between two adjacent guide plates is the same.
[0017] As an optional technical solution for the defogging screen, the box body is made of stainless steel.
[0018] As an optional technical solution for defogging mesh, the filter filler is a wire mesh corrugated filler.
[0019] On the other hand, a cigarette processing device is provided, including at least one of the above-mentioned defogging nets.
[0020] The beneficial effects of this utility model are:
[0021] This application discloses a defogging screen and cigarette processing equipment. The defogging screen includes a box body, guide plates, filter media, and a spray assembly. The box body has openings on both sides. Multiple guide plates are vertically arranged inside the box body and spaced horizontally, forming a zigzag shape. The filter media is disposed between adjacent guide plates and is used to adsorb water vapor and impurities in the gas. The spray assembly is located at the top of the box body and sprays airflow and cleaning liquid onto the filter media. The cleaning liquid and impurities can flow along the guide plates to the bottom of the box body. This application uses the filter media to adsorb particulate matter mixtures in the gas, the spray assembly to clean the filter media inside the box body, and the guide plates to guide the cleaning liquid and impurities to the bottom of the box body, preventing cleaning liquid and impurities from remaining in the filter media. This improves the convenience of cleaning the defogging screen and reduces the probability of damage to the defogging screen. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the structure of the defogging mesh provided in an embodiment of this utility model.
[0024] In the picture:
[0025] 10. Box body;
[0026] 20. Deflector; 21. Vertical plate; 22. Inclined plate; 23. Angle;
[0027] 30. Sprinkler assembly; 31. First pipeline; 32. Second pipeline; 33. Main sprinkler pipeline; 34. Branch sprinkler pipeline; 35. Sprinkler head;
[0028] 40. Fasteners. Detailed Implementation
[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 this utility model based on the specific circumstances.
[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0032] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0033] Existing technologies typically employ devices such as demisters to intercept and filter particulate mixtures in gases. However, existing demisters generally suffer from structural defects: their main structure is relatively thin, with only a few wire mesh corrugated packings serving as the primary filtration units. This design results in limited dirt-holding capacity, and during long-term use, sticky impurities such as nicotine, tar, and flavorings, as well as particulate matter, easily adhere to the gaps and surfaces of the wire mesh corrugated packings. When cleaning and maintenance are required, the tightly packed packings, fixedly connected to the main structure, make effective cleaning difficult on the equipment. Often, the entire demister must be completely removed from the equipment, sometimes even requiring disassembly of related components. This process is not only cumbersome and time-consuming, but frequent disassembly can also damage the demister's structure, affecting its filtration performance, severely reducing the convenience and efficiency of the production process, and increasing maintenance costs.
[0034] To address the aforementioned problems, this embodiment provides a cigarette processing device, including at least one defogging screen. See also... Figure 1 The demisting net includes a housing 10, a guide plate 20, filter media, and a spray assembly 30. The housing 10 has openings on both sides. In this embodiment, the housing 10 is made of stainless steel. In other embodiments, the housing 10 can be made of plastic or resin. The guide plate 20 is vertically arranged inside the housing 10 and multiple guide plates are spaced apart horizontally. The guide plate 20 is zigzag-shaped. The filter media is disposed between two adjacent guide plates 20 and is used to adsorb water vapor and impurities in the gas. In this embodiment, the filter media is a wire mesh corrugated packing. In other embodiments, the filter media can also be activated carbon or molecular sieves. The spray assembly 30 is located at the top of the housing 10 and is used to spray airflow and cleaning liquid onto the filter media. The cleaning liquid and impurities can flow along the guide plate 20 to the bottom of the housing 10. By adsorbing particulate mixtures in the gas through the filter media, the spray assembly 30 can clean the filter media inside the housing 10. The guide plate 20 can guide the cleaning liquid and impurities to the bottom of the housing 10, avoiding the residue of cleaning liquid and impurities in the filter media, improving the convenience of cleaning the demister and reducing the chance of damaging the demister.
[0035] Specifically, the bottom of the box 10 is provided with a guide channel and a collection component. The cleaning liquid and impurities flow along the guide plate 20 into the guide channel and then into the collection component, thus completing the collection of waste liquid. Specifically, the collection component can be a collection tank or an outlet pipeline.
[0036] In this embodiment, the distance between any two adjacent guide plates 20 is the same. Specifically, the distance between any two adjacent guide plates 20 is 5 cm. Further, the guide plate 20 includes multiple plate units arranged vertically. Each plate unit includes a vertical plate 21 and an inclined plate 22, which are alternately arranged. The inclination angles of adjacent inclined plates 22 are opposite. The free end of the vertical plate 21 is connected to the inner wall of the box body 10. Specifically, the free end of the vertical plate 21 and the inner wall of the box body 10 can be connected by insertion, fasteners, or adhesive.
[0037] Furthermore, the guide plate 20 also includes a bend 23, which corresponds one-to-one with the plate unit. The bend 23 includes a vertical part and an inclined part. The inclined part has the same inclination angle as the inclined plate 22 and is fixed to the inclined plate 22. The vertical part is parallel to the vertical plate 21, and the opening of the bend 23 faces downward. The bend 23 prevents the cleaning liquid and impurities flowing down from top to bottom under the action of gravity from accumulating at the joints of the guide plate 20, thereby improving the cleanliness of the inside of the demister and increasing the service life of the demister.
[0038] Further, the spray assembly 30 includes a first pipe 31, a second pipe 32, a main spray pipe 33, branch spray pipes 34, and nozzles 35. The main spray pipe 33 is connected to the branch spray pipes 34. Multiple branch spray pipes 34 are located at the top of the housing 10 and are spaced apart. Multiple nozzles 35 are spaced apart on the branch spray pipes 34. Both the first pipe 31 and the second pipe 32 are connected to the main spray pipe 33. The first pipe 31 provides airflow to the main spray pipe 33, and the second pipe 32 provides cleaning liquid to the main spray pipe 33. The branch spray pipes 34 spray atomized cleaning liquid onto the filter media through the nozzles 35. In this embodiment, the first pipe 31 is used to introduce compressed air, and the second pipe 32 is used to introduce industrial soft water. Further, the spray assembly 30 also includes a solenoid valve located on the main spray pipe 33 to selectively clean the filter media. After the demisting screen has been working for a period of time (usually one shift or one workday), the solenoid valve automatically controls the industrial soft water and compressed air to enter the main spray line 33. After the industrial soft water is mixed with the compressed air, it is atomized and sprayed into the demisting screen through the nozzle 35 under the action of the compressed air. Under the action of pressure, the nicotine, tar and particulate matter adsorbed on the wire mesh corrugated packing in the demisting screen are driven to flow downwards quickly, thereby achieving the effect of cleaning the demisting screen.
[0039] Furthermore, the defogging screen also includes multiple fixing members 40, which are vertically spaced at the opening of the housing 10. Each fixing member 40 has a horizontally spaced insertion slot, which corresponds one-to-one with a guide plate 20. The guide plate 20 can be inserted into the insertion slot to be fixed to the fixing member 40. Specifically, the fixing member 40 is a stainless steel fixing rod. In other embodiments, the fixing member 40 can also be a connecting rope or adhesive silicone to bind or glue the guide plate 20, thereby fixing the position of the guide plate 20.
[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A mist eliminator characterized by, include: Box body (10), the box body (10) having openings on both sides; A guide plate (20) is arranged vertically inside the box (10) and multiple guide plates (20) are spaced apart horizontally. The guide plate (20) is in the shape of a zigzag line. The filter media is disposed between two adjacent guide plates (20) and is used to adsorb water vapor and impurities in the gas. A spray assembly (30) is located at the top of the housing (10). The spray assembly (30) is used to spray airflow and cleaning liquid onto the filter media. The cleaning liquid and impurities can flow along the guide plate (20) to the bottom of the housing (10).
2. The mist eliminator of claim 1, wherein The guide plate (20) includes a plurality of plate units arranged in a vertical direction. The plate unit includes a vertical plate (21) and an inclined plate (22). The vertical plate (21) and the inclined plate (22) are arranged alternately. The inclination angles of two adjacent inclined plates (22) are opposite. The free end of the vertical plate (21) is connected to the inner wall of the box body (10).
3. The mist eliminator of claim 2, wherein The guide plate (20) also includes a bend (23), which corresponds one-to-one with the plate unit. The bend (23) includes a vertical part and an inclined part. The inclined part has the same inclination angle as the inclined plate (22) and is fixed to the inclined plate (22). The vertical part is parallel to the vertical plate (21), and the opening of the bend (23) faces downward.
4. The mist eliminator of claim 1 wherein, The spray assembly (30) includes a first pipe (31), a second pipe (32), a main spray pipe (33), a branch spray pipe (34), and a nozzle (35). The main spray pipe (33) is connected to the branch spray pipe (34). The branch spray pipe (34) is located on the top of the housing (10) and is spaced apart. There are multiple nozzles (35) spaced apart on the branch spray pipe (34). The first pipe (31) and the second pipe (32) are both connected to the main spray pipe (33). The first pipe (31) is used to provide airflow to the main spray pipe (33). The second pipe (32) is used to provide cleaning liquid to the main spray pipe (33). The branch spray pipe (34) sprays atomized cleaning liquid onto the filter media through the nozzle (35).
5. The mist eliminator of claim 4, wherein The spray assembly (30) also includes a solenoid valve located on the main spray line (33) to selectively clean the filter media.
6. The mist eliminator of claim 1 wherein, The defogging screen also includes a fixing member (40). The fixing member (40) is a plurality of fixing members and is spaced apart along the vertical direction at the opening of the box body (10). The fixing member (40) is provided with insertion slots spaced apart along the horizontal direction. The insertion slots correspond one-to-one with the guide plate (20). The guide plate (20) can be inserted into the insertion slot to be fixed to the fixing member (40).
7. The defogging mesh according to any one of claims 1-6, characterized in that, The distance between any two adjacent guide vanes (20) is the same.
8. The defogging mesh according to any one of claims 1-6, characterized in that, The box body (10) is made of stainless steel.
9. The defogging mesh according to any one of claims 1-6, characterized in that, The filter media is a wire mesh corrugated media.
10. A cigarette processing equipment, characterized in that, It includes at least one defogging mesh as described in any one of claims 1-9.