Anti-sticking wear-resistant airlock for tobacco processing industry
The design of the anti-stick and wear-resistant airlock solves the problem of tobacco sticking to the airlock during tobacco processing, improves the wear resistance of the airlock and the quality of the tobacco, and extends the service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONGHU JINYE TOBACCO MASCH CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional airlocks tend to trap tobacco raw materials during tobacco processing, leading to accelerated internal wear and bacterial growth, which affects the quality of the tobacco.
The design incorporates an anti-stick and wear-resistant airlock, featuring an anti-stick and wear-resistant three-dimensional structure, a flexible sealing plate, and a rotating feeding blade assembly. Combined with leak detection and temperature and humidity monitoring, it ensures airtightness and wear resistance.
It effectively prevents tobacco shreds from adhering, reduces wear, inhibits bacterial growth, and improves the lifespan of the airlock and the quality of the tobacco shreds.
Smart Images
Figure CN224257414U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tobacco processing equipment, and in particular to an anti-stick and wear-resistant airlock for use in the tobacco processing industry. Background Technology
[0002] In tobacco processing production lines, an airlock is usually installed at the feeding and discharging points of multiple production stages to ensure airtightness while the raw materials are transported in an orderly manner, preventing downstream gases from flowing upstream.
[0003] Currently, traditional airlocks tend to have some tobacco raw materials adhering and remaining on their inner walls during use. Over time, this not only accelerates the wear of the internal feeding blades, but also allows bacteria and tobacco insects to grow on the inner walls of the airlock, seriously affecting the quality of tobacco raw material processing.
[0004] Therefore, it is necessary to develop an anti-stick and wear-resistant airlock for the tobacco processing industry to solve the above-mentioned technical problems. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide an anti-stick and wear-resistant airlock for the tobacco processing industry, which effectively overcomes the defects of the prior art.
[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:
[0007] An anti-sticking and wear-resistant airlock for the tobacco processing industry includes an airlock cavity, a rotary drive mechanism, and a feeding blade assembly. The airlock cavity has a horizontally arranged cylindrical inner cavity. The upper end of the airlock cavity has a feeding port, and the lower end has a feeding port. The feeding blade assembly includes a feeding shaft and multiple rectangular feeding blades. The feeding shaft is coaxially arranged in the inner cavity of the airlock cavity, and its two ends pass through the two end sidewalls of the airlock cavity and are rotatably assembled. The rotary drive mechanism is drivenly connected to one end of the feeding shaft. The multiple feeding blades are respectively installed circumferentially on the feeding shaft. The two ends of the feeding blades contact the two ends of the airlock cavity. The edges of the feeding blades are in sealing contact with the inner wall of the airlock cavity during rotation. One end of the feeding port is provided with a feeding pipe communicating with it. The inner surface of the airlock cavity has an anti-sticking and wear-resistant three-dimensional structure.
[0008] Based on the above technical solution, the present invention can be further improved as follows.
[0009] Furthermore, a flexible sealing plate is provided at the edge of the feeding blade away from the feeding shaft. During the rotation of the feeding blade, the flexible sealing plate is in sealing contact with the inner wall of the airlock cavity.
[0010] Furthermore, the edge of the aforementioned feeding blade is provided with a plurality of mounting holes spaced apart along the length direction of the aforementioned feeding shaft. The aforementioned mounting holes are all oval holes extending radially along the aforementioned feeding shaft. The aforementioned flexible sealing plate is stacked on one side of the edge of the aforementioned feeding blade and protrudes out of the outer side of the edge of the aforementioned feeding blade. A bolt is inserted through the aforementioned mounting hole and passes through it and the aforementioned flexible sealing plate, and the aforementioned flexible sealing plate and the aforementioned feeding blade are fixed by the aforementioned bolt.
[0011] Furthermore, the aforementioned flexible sealing plate is a silicone rubber plate.
[0012] Furthermore, the aforementioned anti-stick and wear-resistant three-dimensional structure includes a honeycomb-shaped recess on the inner surface of the aforementioned airlock cavity, the recess being filled with an anti-stick and wear-resistant layer, and a positioning protrusion at the center of the recess, wherein the anti-stick and wear-resistant layer is fitted with the positioning protrusion.
[0013] Furthermore, the other end of the discharge chamber is provided with a maintenance channel communicating with its inner cavity, and a sealing plate is detachably installed at the port of the maintenance channel.
[0014] Furthermore, a support base is provided at the lower end of the aforementioned discharge chamber.
[0015] Furthermore, an air leakage detection system is provided at any one or both ends of the airlock cavity corresponding to the part through which the feed shaft passes.
[0016] Furthermore, the aforementioned air leakage detection system includes multiple airflow sensors, which are spaced apart and arranged around the corresponding ends of the feed shaft that protrude from the airlock cavity. Each airflow sensor is connected to a processor, which in turn connects to a host computer.
[0017] Furthermore, ultraviolet light sources are respectively provided on the inner walls of the discharge chamber and the inlet, and a temperature and humidity detection unit for detecting the internal temperature and humidity of the detector is provided on the side wall of the airlock cavity.
[0018] The beneficial effects of this utility model are: the reasonable structural design can improve the problem of easy material sticking in the airlock cavity, which leads to the residue and deterioration of tobacco raw materials and affects the quality of tobacco shreds processed in batches, through the design of the anti-stick and wear-resistant three-dimensional structure. At the same time, it further improves the wear resistance and service life of the airlock cavity. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of the anti-stick and wear-resistant airlock of this utility model for use in the tobacco processing industry;
[0020] Figure 2 This is a cross-sectional view of the anti-stick and wear-resistant airlock of this utility model for use in the tobacco processing industry;
[0021] Figure 3This is a schematic diagram of the structure of the anti-sticking and wear-resistant airlock heavy-duty material-shifting blade assembly for the tobacco processing industry according to this utility model;
[0022] Figure 4 This is a partial structural diagram of the inner surface of the anti-stick and wear-resistant airlock for use in the tobacco processing industry according to this utility model.
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1. Airlock cavity; 2. Anti-stick and wear-resistant three-dimensional structure; 3. Feeding blade assembly; 11. Feed inlet; 12. Discharge cavity; 13. Support base; 21. Positioning protrusion; 31. Feeding shaft; 32. Feeding blade; 33. Flexible sealing plate; 121. Discharge pipe; 122. Inspection channel; 321. Mounting hole. Detailed Implementation
[0025] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0026] Example: Figure 1 , 2 As shown in Figure 3, the anti-sticking and wear-resistant airlock for the tobacco processing industry in this embodiment includes an airlock cavity 1, a rotary drive mechanism, and a feeding blade assembly 3. The airlock cavity 1 has a horizontally arranged cylindrical inner cavity. The upper end of the airlock cavity 1 is provided with a feeding port 11, and the lower end is provided with a feeding outlet 12. The feeding blade assembly 3 includes a feeding shaft 31 and a plurality of rectangular feeding blades 32. The feeding shaft 31 is coaxially arranged in the inner cavity of the airlock cavity 1, and its two ends respectively penetrate through the two ends of the airlock cavity 1. The end sidewall is rotated and assembled. The rotary drive mechanism is connected to one end of the feeding shaft 31. Multiple feeding blades 32 are respectively installed on the feeding shaft 31 at intervals along the circumference. The two ends of the feeding blades 32 respectively contact the two ends of the airlock cavity 1. The edges of the feeding blades 32 are in sealed contact with the inner wall of the airlock cavity 1 during rotation. One end of the discharge cavity 12 is provided with a discharge pipe 121 communicating with it. The inner surface of the airlock cavity 1 is provided with an anti-stick and wear-resistant three-dimensional structure 2.
[0027] The anti-stick and wear-resistant airlock used in this embodiment for the tobacco processing industry is similar to the traditional material feeding airlock, and its principle will not be elaborated here. This application improves the adhesion and residue of tobacco raw materials on the inner surface of the airlock cavity 1 by designing an anti-stick and wear-resistant three-dimensional structure 2 on the inner surface of the airlock cavity 1. Effective adhesion of tobacco raw materials to the inner wall of the airlock cavity 1 can easily breed bacteria, tobacco insects, etc., and can easily cause the tobacco raw materials processed in batches to deteriorate, seriously affecting the quality of subsequent product production and processing. At the same time, it greatly reduces or eliminates the adhesion of tobacco raw materials to the inner wall of the airlock cavity, which can improve the wear resistance of the airlock cavity and also improve the service life of the feeding blade assembly 3.
[0028] It is particularly important to emphasize that the anti-stick and wear-resistant airlock of this embodiment for the tobacco processing industry can be applied to flash evaporation, tobacco drying machine feeding, tobacco drying machine discharging, dust removal and unloading, briquetting machine feeding, air classifier, spectral cleaning machine, heating and humidifying machine and other parts of the tobacco processing industry, replacing the traditional airlock.
[0029] In this embodiment, the rotary drive mechanism uses a geared motor with good adaptability, or a combination of a geared motor and a reducer.
[0030] The anti-stick and wear-resistant airlock for the tobacco processing industry in this embodiment can also be designed with an anti-stick and wear-resistant three-dimensional structure 2 on the inner wall of the feed inlet 11, the inner surface of the discharge chamber 12, the inner surface of the discharge pipe 121, and even the surface of the feeding blade 32, so that the tobacco raw materials will not stick together in the airlock, thus improving the product quality after the tobacco raw materials are processed.
[0031] Preferably, the feeding blade 32 has a straight, flexible sealing plate 33 along the long axis of the feeding shaft 31 at its edge away from the feeding shaft 31. During the rotation of the feeding blade 32, the flexible sealing plate 33 makes sealing contact with the inner wall of the airlock cavity 1. When the rotating drive mechanism drives the feeding shaft 31 to rotate, the feeding blade 32 rotates synchronously, and the flexible sealing plate 33 at the edge of the feeding blade 32 moves along the surface of the cylindrical inner cavity of the airlock cavity 1, achieving good contact and sealing between the two. This makes the inlet 11 and the outlet 12 form a physical separation with good airtightness, preventing high-temperature drying steam from entering the inlet 11 upwards.
[0032] In a preferred embodiment, the edge of the feeding blade 32 is provided with a plurality of mounting holes 321 spaced apart along the length of the feeding shaft 31. The mounting holes 321 are all oval holes extending radially along the feeding shaft 31. The flexible sealing plate 33 is stacked on one side of the edge of the feeding blade 32 and protrudes beyond the outer edge of the feeding blade 32. A bolt passing through the mounting hole 321 and the flexible sealing plate 33 is provided, and the flexible sealing plate 33 and the feeding blade 32 are fixed by the bolt (or, a plurality of oval assembly holes are provided on the flexible sealing plate 33 spaced apart along the length, and mounting holes corresponding to the assembly holes are provided on the feeding blade 32, and bolts passing through the assembly holes and mounting holes are provided, thereby fixing the feeding blade 32 and the flexible sealing plate 33).
[0033] In the above embodiment, an oval hole of a certain length is provided at the edge of the feeding blade 32. The flexible sealing plate 33 is assembled with the feeding blade 32 by bolts passing through it and the mounting hole 321. This design allows the position of the bolt in the mounting hole 321 to be adjusted, which means that the installation position of the flexible sealing plate 33 can be adjusted. This serves to adjust the tightness of the contact between the flexible sealing plate 33 and the inner surface of the airlock cavity 1, that is, to effectively adjust the airtightness. At the same time, after the flexible sealing plate 33 is worn, it can be adjusted to extend outward, so that the flexible sealing plate 33 can continue to be used, reducing its replacement frequency, extending its service life, and reducing the cost of use.
[0034] In this embodiment, the flexible sealing plate 33 is made of food-grade silicone rubber.
[0035] As a preferred implementation method, such as Figure 4 As shown, the above-mentioned anti-stick and wear-resistant three-dimensional structure 2 includes a honeycomb-shaped recess (A in the figure) provided on the inner surface of the above-mentioned airlock cavity 1. The above-mentioned recess is filled with an anti-stick and wear-resistant layer (b in the figure). A positioning protrusion 21 is provided at the center of the above-mentioned recess. The above-mentioned anti-stick and wear-resistant layer is fitted with the above-mentioned positioning protrusion 21.
[0036] In the above implementation scheme, densely distributed honeycomb-shaped depressions (grooves) are provided on the inner surface of the airlock cavity 1, and an anti-stick and wear-resistant layer is embedded in the depressions to form a three-dimensional anti-stick and wear-resistant structure with a three-dimensional design, which can achieve a good anti-stick effect while ensuring wear resistance.
[0037] Among them, the anti-stick and wear-resistant layer is a material product of existing technology, such as the anti-stick and wear-resistant material involved in the patent with publication number CN117549586B - an anti-stick and wear-resistant belt for tobacco equipment and its production method.
[0038] In this embodiment, the other end of the discharge chamber 12 is provided with a maintenance channel 122 communicating with its inner cavity, and a sealing plate is detachably installed at the port of the maintenance channel 122. Under normal conditions, the port of the maintenance channel 122 is sealed by the sealing plate. When it is necessary to inspect or perform regular maintenance, the sealing plate can be opened and the interior can be accessed through the maintenance channel 122.
[0039] Preferably, the lower end of the discharge chamber 12 is provided with a support base 13. The support base 13 enables the airlock to be stably supported on the carrier. The support base 13 is preferably a rectangular base or a hollow bracket, etc.
[0040] In a preferred embodiment, an air leakage detection system is provided at one or both ends of the airlock cavity 1 corresponding to the part through which the feed shaft 31 protrudes.
[0041] In the above implementation scheme, the air leakage detection system can monitor the airtightness of the material feeding shaft 31 at the connection point of the airlock cavity 1 in real time.
[0042] Preferably, the aforementioned air leakage detection system includes multiple airflow sensors, which are spaced apart and arranged around the corresponding ends of the feed shaft 31 that protrude from the airlock cavity 1. Each airflow sensor is connected to a processor, which in turn connects to a host computer. By using these multiple surrounding airflow sensors, effective airflow monitoring can be performed at the physical gaps where the feed shaft 31 connects to the airlock cavity 1, and the monitoring data can be fed back to the host computer in real time, allowing back-end staff to monitor the status.
[0043] Of course, the processor is connected to an alarm, which will sound an alarm when a gas leak is detected.
[0044] In a preferred embodiment, ultraviolet light sources are respectively provided on the inner walls of the discharge chamber 12 and the inlet 11, and a temperature and humidity detection unit for detecting the internal temperature and humidity of the detector is provided on the side wall of the airlock cavity 1.
[0045] In the above implementation scheme, the ultraviolet light source is designed to perform ultraviolet sterilization treatment on the upper and lower parts and the upper and lower surfaces of the feeding blade assembly 3, further inhibiting bacterial growth. At the same time, the side wall of the airlock cavity 1 can be equipped with electrical interfaces of a temperature and humidity detection unit (which can be a separate temperature sensor and humidity sensor) to monitor the temperature and humidity information inside the airlock cavity 1 in real time.
[0046] 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.
[0047] 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.
[0048] 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.
[0049] 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 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.
[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0051] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A non-stick, wear-resistant airlock for use in the tobacco processing industry, characterized in that: The device includes an airlock cavity (1), a rotary drive mechanism, and a feeding blade assembly (3). The airlock cavity (1) has a horizontally arranged cylindrical inner cavity. The upper end of the airlock cavity (1) has a feed inlet (11), and the lower end has a discharge cavity (12). The feeding blade assembly (3) includes a feeding shaft (31) and multiple rectangular feeding blades (32). The feeding shaft (31) is coaxially arranged in the inner cavity of the airlock cavity (1), and its two ends pass through the two end sidewalls of the airlock cavity (1) respectively, and are rotatably assembled. The rotary drive mechanism is connected to one end of the feeding shaft (31). Multiple feeding blades (32) are installed on the feeding shaft (31) at intervals along the circumference. The two ends of the feeding blades (32) contact the two ends of the airlock cavity (1). The edge of the feeding blades (32) is in sealed contact with the inner wall of the airlock cavity (1) during rotation. One end of the discharge cavity (12) is provided with a discharge pipe (121) communicating with it. The inner surface of the airlock cavity (1) is provided with an anti-stick and wear-resistant three-dimensional structure (2).
2. The anti-stick and wear-resistant airlock for the tobacco processing industry according to claim 1, characterized in that: The feeding blade (32) is provided with a flexible sealing plate (33) at the edge away from the feeding shaft (31). During the rotation of the feeding blade (32), the flexible sealing plate (33) is in sealed contact with the inner wall of the airlock cavity (1).
3. The anti-sticking and wear-resistant airlock for the tobacco processing industry according to claim 2, characterized in that: The edge of the feeding blade (32) is provided with a plurality of mounting holes (321) spaced apart along the length direction of the feeding shaft (31). The mounting holes (321) are all oval holes extending radially along the feeding shaft (31). The flexible sealing plate (33) overlaps one side of the edge of the feeding blade (32) and protrudes outside the edge of the feeding blade (32). A bolt is inserted through the mounting hole (321) and the flexible sealing plate (33), and the flexible sealing plate (33) and the feeding blade (32) are fixed by the bolt.
4. The anti-sticking and wear-resistant airlock for the tobacco processing industry according to claim 2, characterized in that: The flexible sealing plate (33) is a silicone rubber plate.
5. The anti-sticking and wear-resistant airlock for the tobacco processing industry according to claim 1, characterized in that: The anti-stick and wear-resistant three-dimensional structure (2) includes a honeycomb-shaped recess on the inner surface of the airlock cavity (1), the recess being filled with an anti-stick and wear-resistant layer, and a positioning protrusion (21) at the center of the recess, the anti-stick and wear-resistant layer being fitted with the positioning protrusion (21).
6. The anti-stick and wear-resistant airlock for the tobacco processing industry according to claim 1, characterized in that: The other end of the discharge chamber (12) is provided with a maintenance channel (122) communicating with its inner cavity, and a sealing plate is detachably installed at the port of the maintenance channel (122).
7. The anti-sticking and wear-resistant airlock for the tobacco processing industry according to claim 1, characterized in that: The lower end of the discharge chamber (12) is provided with a support base (13).
8. A non-stick, wear-resistant airlock for the tobacco processing industry according to any one of claims 1 to 7, characterized in that: An air leakage detection system is provided at one or both ends of the airlock cavity (1) corresponding to the part through which the feed shaft (31) passes.
9. A non-stick, wear-resistant airlock for the tobacco processing industry according to claim 8, characterized in that: The air leakage detection system includes multiple airflow sensors, which are spaced around the corresponding ends of the feed shaft (31) that protrude from the airlock cavity (1). The airflow sensors are connected to the processor and then to the host computer.
10. A non-stick, wear-resistant airlock for the tobacco processing industry according to claim 9, characterized in that: The inner walls of the discharge chamber (12) and the inlet (11) are respectively provided with ultraviolet light sources, and the side wall of the airlock cavity (1) is provided with a temperature and humidity detection unit for detecting the internal temperature and humidity of the detector.