Device for removing ultra-clear and ultra-fine impurities in airflow balance bin of tobacco impurity removing machine

Abstract

The utility model relates to the field of impurity removing devices in tobacco processing equipment, in particular to a device for removing ultra-clear and ultra-fine impurities in an airflow balance bin of a tobacco impurity removing machine, which comprises a sorting box and a winnowing mechanism, a negative pressure connector is arranged at the upper end of the sorting box, a net drum structure is mounted at the negative pressure connector, and the net drum comprises a frame body and a metal net bag. An air inlet and an air outlet are formed in the frame body, the air outlet is connected with the negative pressure connector, the metal net bag is installed in the frame body, a material passing hole is formed in the metal net bag, an airflow balance bin is arranged in the sorting box, a feeding port is formed in the side wall of the sorting box, and a discharging port is formed in the side wall of the sorting box. Materials are fed into the airflow balance bin through the feeding port, and the winnowing mechanism is installed in the sorting box. The device has the effect of further improving the removal effect of the light superfine impurities.

Description

Technical Field

[0001] This application relates to the field of impurity removal devices in tobacco processing equipment, and in particular to a device for removing ultra-fine impurities from the airflow balance chamber of a tobacco impurity removal machine. Background Technology

[0002] During tobacco production, foreign objects such as stones, metal fragments, and plastic pieces can become mixed in with the tobacco. These not only affect the purity and appearance of the tobacco product but may also lower the quality grade of the final product. Furthermore, foreign objects entering processing equipment can cause wear and even damage, increasing maintenance costs and downtime. Effective foreign object removal helps extend equipment lifespan and maintain smooth production line operation.

[0003] Foreign matter removal is a crucial and complex step in tobacco processing. Traditional tobacco foreign matter removal devices typically employ single air separation or sieving technologies, which can remove larger impurities to some extent, but are ineffective at removing lightweight, ultrafine impurities such as hemp fibers and plastic fibers.

[0004] A common problem with existing foreign matter removal technologies is their poor effectiveness in removing lightweight, ultrafine impurities, which can easily lead to pipe blockage and affect the normal operation of the equipment. Furthermore, these methods are often affected by environmental factors in practical applications, and cannot maintain a consistently stable removal effect, thus impacting the purity of the tobacco raw materials and the quality of the final product. Utility Model Content

[0005] To further improve the removal effect of lightweight ultrafine impurities, this application provides a device for removing ultrafine impurities from the airflow balance chamber of a tobacco impurity remover.

[0006] The technical solution provided in this application for a device for removing ultra-fine impurities from an airflow balance chamber of a tobacco impurity remover adopts the following:

[0007] A device for removing ultra-fine impurities from an airflow balancing chamber in a tobacco impurity removal machine includes a sorting box and an air separation mechanism. The upper end of the sorting box has a negative pressure interface, and a mesh drum structure is installed at the negative pressure interface. The mesh drum includes a frame body and a metal mesh bag. The frame body has an air inlet and an air outlet, and the air outlet is connected to the negative pressure interface. The metal mesh bag is installed inside the frame body and is used to filter impurities in the airflow. An airflow balancing chamber is provided inside the sorting box, and a feed inlet is provided on the side wall of the sorting box for feeding materials into the airflow balancing chamber. The air separation mechanism is installed inside the sorting box.

[0008] By adopting the above technical solution, the problem of poor removal efficiency of lightweight ultrafine impurities in traditional tobacco foreign matter removal devices can be effectively solved. Specifically, the sorting box, combined with the negative pressure interface and mesh drum structure, forms a highly efficient air-separation environment. The material passage holes on the metal mesh bag can accurately screen materials, ensuring that lightweight ultrafine impurities are effectively separated. The air-separation mechanism further optimizes the aerodynamic characteristics within the sorting box, thereby improving foreign matter removal efficiency, reducing the risk of pipeline blockage, ensuring stable equipment operation, and improving the purity of tobacco raw materials.

[0009] In one specific implementation scheme, a cleaning mechanism is also included, which includes a cleaning motor and a cleaning roller. The cleaning motor is installed at the upper end of the sorting box, and the two ends of the cleaning roller are rotatably connected to the two ends of the frame body. The metal mesh bag is installed on the cleaning roller and thus installed in the frame body. The cleaning roller passes through the metal mesh bag. Pulleys are installed on the cleaning roller and the output shaft of the cleaning motor, and the two are connected by a belt.

[0010] By adopting the above technical solution, foreign matter, especially light and ultrafine impurities, can be effectively removed from tobacco. Specifically, the sorting box and air separation mechanism work together, utilizing the mesh drum structure at the negative pressure interface for preliminary filtration. The material passage holes on the metal mesh bag prevent larger particles from entering the subsequent system. Building upon this, the newly added impurity removal mechanism further enhances the removal effect. The impurity removal motor drives the impurity removal roller to rotate, which in turn moves the metal mesh bag mounted on it, causing the light and ultrafine impurities adhering to the surface of the metal mesh bag to be shaken off. This avoids the problem of impurities clogging the mesh holes, thus ensuring smooth airflow and stable equipment operation. Furthermore, this design also improves the purity of the tobacco raw materials, reduces the risk of equipment wear and damage caused by foreign matter, extends equipment lifespan, reduces maintenance costs, and ensures production continuity and product quality stability.

[0011] In one specific implementation scheme, several sets of brushes are installed on the impurity removal roller, and the several sets of brushes are evenly arranged along the length direction of the impurity removal roller.

[0012] By adopting the above technical solution, the brush on the impurity removal roller can effectively remove lightweight ultrafine impurities adhering to the surface of the metal mesh bag, ensuring that the material passage hole is not blocked by impurities and thus affecting the smooth flow of air. Specifically, as the impurity removal roller rotates, the brush can thoroughly clean the metal mesh bag, and it has a significant cleaning effect, especially on lightweight ultrafine impurities such as hemp fibers and plastic fibers that are difficult to remove by traditional methods. This improves the purity of tobacco raw materials and ensures stable operation of the equipment.

[0013] In one specific implementation scheme, the system further includes lint-sticking rods, wherein a plurality of lint-sticking rods are provided and are evenly arranged along the length direction of the impurity removal roller.

[0014] By adopting the above technical solution, fine fibrous impurities adhering to the impurity removal roller can be effectively adsorbed and removed. Specifically, during the impurity removal process, the addition of lint-adhesive sticks further enhances the capture ability of lightweight, ultrafine impurities such as hemp fibers and plastic filaments, preventing these impurities from remaining and affecting subsequent processing. Simultaneously, the design of multiple lint-adhesive sticks evenly distributed along the length of the impurity removal roller ensures comprehensive coverage of the entire working area, improves cleaning efficiency, reduces the risk of equipment failure due to impurity accumulation, and thus guarantees the high purity of the tobacco raw materials and the stability of equipment operation.

[0015] In one specific implementation, the air separation mechanism includes a centrifugal fan, a guide plate, and an adjusting cylinder. The centrifugal fan is installed inside the sorting box, one end of the guide plate is hinged to the inner side wall of the sorting box, and the adjusting cylinder is installed on the airflow balance chamber. The piston rod of the adjusting cylinder is not connected to the guide plate at one end of the sorting box.

[0016] By adopting the above technical solution, the air separation mechanism can effectively separate ultrafine impurities from tobacco. Specifically, the airflow generated by the centrifugal fan can create strong wind force to move lightweight ultrafine impurities, while the guide plate design allows for adjustment of the airflow direction and range as needed, enabling impurities to be more accurately guided to specific areas for collection. The addition of an adjusting cylinder further enhances the system's flexibility. By dynamically adjusting the guide plate angle, it ensures a stable rejection effect even under different operating conditions, avoiding the problem of decreased rejection efficiency due to environmental changes.

[0017] In one specific implementation, at least two centrifugal fans are provided, with the two centrifugal fans respectively installed on both sides of the airflow balancing chamber.

[0018] By adopting the above technical solution, at least two centrifugal fans are installed on both sides of the airflow balance chamber. This layout makes the airflow more balanced, avoids the material displacement problem that may be caused by strong wind blowing on one side, improves the stability and reliability of the entire system, and achieves better removal effect, especially for light and ultrafine impurities that are difficult to handle. It also reduces the risk of pipeline blockage and ensures that the equipment can operate stably for a long time.

[0019] In one specific implementation, a vibrating screen is also included, which is installed inside the airflow balancing chamber and is inclined.

[0020] By adopting the above technical solution, the vibrating screen is installed inside the airflow balance chamber and set at an angle, allowing the material to be further screened after air separation. Gravity and vibration are used to separate finer impurities, improving the accuracy and efficiency of foreign object removal, ensuring the purity of tobacco raw materials, and thus improving the quality of the final product. This design solves the problem that traditional single air separation or screening technology is difficult to handle light, ultrafine impurities, avoiding pipe blockage and equipment failure caused by impurity residue, ensuring stable operation of production equipment and extending its service life.

[0021] In one specific implementation scheme, a material collection box is installed below the vibrating screen, and an airflow balance chamber and a sorting box are respectively provided with openings on the lower side wall of the vibrating screen, with the lower end of the vibrating screen extending out of the openings to the outside of the box.

[0022] By adopting the above technical solution, the collection box installed below the vibrating screen can effectively collect the screened impurities, preventing them from accumulating in the airflow balance chamber, ensuring the cleanliness of the equipment interior, reducing cleaning frequency, and improving work efficiency. The airflow balance chamber and sorting box have corresponding openings on the lower side wall of the vibrating screen, extending beyond the lower end of the screen to the outside of the chamber. This design allows the screened impurities to be directly discharged outside the equipment, preventing them from flowing back into the processing flow, ensuring the purity of the tobacco raw materials, simplifying the impurity removal process, and improving the automation level and operational stability of the entire device.

[0023] In one specific implementation, the system further includes a removal pipe and a removal fan, wherein the removal pipe is installed on the air separator, the removal pipe is connected to the mesh drum structure, and the removal fan is installed on the removal pipe.

[0024] By adopting the above technical solution, the impurities collected in the mesh drum structure are removed by connecting the impurity removal pipe to the external exhaust device and the impurity removal pipe to the mesh drum structure.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The sorting box works in conjunction with the air separation mechanism to form a stable and controllable airflow environment through the negative pressure interface and the mesh drum structure, which can effectively remove light and ultrafine impurities, avoid pipeline blockage, and improve the stability of equipment operation;

[0027] 2. The metal mesh bag design in the mesh drum structure, combined with the function of the material passage hole, accurately screens the target material, significantly improving the purity of tobacco raw materials and solving the problem of incomplete removal of fine impurities by traditional methods;

[0028] 3. The air separation mechanism inside the sorting box optimizes aerodynamic characteristics. The centrifugal fan and guide plate work together to enhance the removal of foreign objects and reduce the impact of external environmental factors, ensuring continuous and stable production quality. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application.

[0030] Figure 2 This is a right view of Embodiment 1 of this application.

[0031] Figure 3 for Figure 2 A cross-sectional view along the AA direction.

[0032] Figure 4 This is a front view of Embodiment 1 of this application.

[0033] Figure 5 for Figure 4 A cross-sectional view along the BB direction.

[0034] Figure 6 This is a cross-sectional view of Embodiment 2 of this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Sorting box; 2. Air separation mechanism; 21. Centrifugal fan; 22. Guide plate; 23. Adjusting cylinder; 3. Mesh drum structure; 31. Frame body; 32. Metal mesh bag; 4. Impurity removal mechanism; 41. Impurity removal motor; 42. Impurity removal roller; 43. Brush; 44. Lint stick; 5. Vibrating screen; 6. Guide plate; 7. Collection box; 8. Impurity removal pipe. Detailed Implementation

[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral 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 elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] This application discloses a device for removing ultra-fine impurities from the airflow balance chamber of a tobacco impurity remover.

[0038] Example 1

[0039] like Figure 1-3As shown, the tobacco impurity removal machine sorting box 1 is a device for removing ultra-fine impurities, which includes a sorting box 1 and an air separation mechanism 2. The upper end of the sorting box 1 is provided with a negative pressure interface, and a mesh drum structure 3 is installed at the negative pressure interface. The air separation mechanism 2 is installed inside the sorting box 1, which realizes the effective separation of light ultra-fine impurities and avoids the pipe blockage caused by the accumulation of impurities.

[0040] The mesh drum structure 3 consists of a frame body 31 and a metal mesh bag 32. The frame body 31 can be made of aluminum alloy profile, which is lightweight and has high strength. Multiple reinforcing ribs are provided inside the frame body 31 to enhance overall rigidity and prevent deformation. In this embodiment, it also includes a cleaning mechanism 4, which includes a cleaning motor 41 and a cleaning roller 42. The cleaning motor 41 is mounted on the upper surface of the sorting box 1. The cleaning roller 42 is rotatably connected at both ends to the side walls of the frame body 31. The cleaning roller 42 is arranged along the length of the metal mesh bag 32 and penetrates through it. The cleaning roller 42 and the metal mesh bag 32 are coaxially arranged. The frame body 31 is equipped with a partition, which divides the interior of the frame body 31 into two spaces. An air inlet is opened at the upper end of the frame body 31. The metal mesh bag 32 is barrel-shaped and has an opening on the side wall adjacent to the air inlet. A rotating groove is opened on the partition, through which the metal mesh bag 32 passes and can rotate. The partition can prevent impurities from passing through the outside of the metal mesh bag 32 and through the air outlet. The material passage hole 321 on the metal mesh bag 32 has a small diameter, which is controlled at about 0.4 mm. This ensures that small particles can pass through smoothly while preventing large pieces of waste from entering the subsequent process.

[0041] Several sets of brushes 43 are installed on the impurity removal roller 42. The sets of brushes 43 are evenly arranged along the length of the impurity removal roller 42 and are arranged around the circumference of the impurity removal roller 42 so as to achieve full coverage of the target area by the brushes 43, thereby ensuring the impurity removal effect.

[0042] like Figure 4-5 As shown in this embodiment, the air separation mechanism 2 includes a centrifugal fan 21, a guide plate 22, and an adjusting cylinder 23. Two centrifugal fans 21 are provided, and the two centrifugal fans 21 are respectively installed on both sides of the airflow balance chamber. One centrifugal fan 21 is installed outside the sorting box 1, and the air outlet of the centrifugal fan 21 extends through the sorting box 1 and the side wall of the airflow balance chamber into the chamber. The other centrifugal fan 21 is installed on the side wall of the airflow balance chamber, and the air inlet of the centrifugal fan 21 extends through the side wall of the airflow balance chamber. The guide plate 22 is installed on the side wall below the negative pressure interface, and one end of the guide plate 22 is hinged to the side wall of the sorting chamber. The adjusting cylinder 23 is fixedly installed on the side wall of the sorting chamber, and the piston rod of the adjusting cylinder 23 is fixedly connected to the end of the guide plate 22 that is not connected to the side wall of the sorting chamber. The tilt angle of the guide plate 22 is adjusted by adjusting the extension and retraction of the piston rod of the adjusting cylinder 23, thereby controlling the direction of the airflow.

[0043] In this embodiment, a vibrating screen 5 is also included. The vibrating screen 5 is installed below the airflow balance chamber. A collection box 7 is installed below the vibrating screen 5. The vibrating screen 5 is installed at an angle inside the airflow balance chamber. The sorting box 1 and the airflow balance chamber are respectively provided with openings on the lower side wall of the lower end of the vibrating screen 5. The lower end of the vibrating screen 5 extends out of the chamber through the openings provided on the lower side wall of the airflow balance chamber and the sorting box 1, thereby conveying the processed tobacco out and facilitating the collection of the tobacco.

[0044] In this embodiment of the application, a cleaning pipe 8 is also included. The cleaning pipe 8 is installed on the upper end of the sorting box 1, and one end of the cleaning pipe 8 is installed on the lower end of the frame body 31 and connected to the frame body 31, thereby connecting to the internal cavity of the frame body 31. When performing cleaning work, the other end of the cleaning pipe 8 is connected to an external fan, thereby generating negative pressure in the cleaning pipe 8, sucking out the impurities in the frame body 31, and cleaning the impurities collected inside the frame body 31.

[0045] The implementation principle of the tobacco impurity removal sorting box 1 for removing ultra-fine impurities in this embodiment of the application is as follows: When air is introduced into the sorting box 1 through the negative pressure interface, the impurities in the airflow are first screened by the mesh drum structure 3. Larger substances cannot pass through the material passage holes 321 opened on the metal mesh bag 32, and are thus collected in the metal mesh bag 32. Some ultra-light and ultra-fine impurities such as hemp fibers and plastic fibers are collected by the impurity removal motor 41 driving the impurity removal roller 42 to rotate, and are collected by the brush 43 set on the impurity removal roller 42. This avoids blockage in the negative pressure interface and avoids affecting the flow of airflow. At the same time, the air separation mechanism 2 set in the sorting box 1 can further adjust the direction and size of the airflow, further improving the removal effect of light ultra-fine impurities.

[0046] Example 2

[0047] like Figure 6 As shown, the difference between this embodiment and embodiment 1 is that it also includes a lint-adhesive rod 44. Several lint-adhesive rods 44 are provided on the lint-adhesive rod 44. The several lint-adhesive rods 44 are evenly arranged along the length direction of the impurity removal roller 42. The lint-adhesive rods 44 are provided with an adhesive substance, thereby ensuring the adhesion effect on lightweight impurities.

[0048] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for removing ultra-fine impurities from an airflow balance chamber in a tobacco impurity remover, characterized in that: The system includes a sorting box (1) and an air separation mechanism (2). The upper end of the sorting box (1) is provided with a negative pressure interface. A mesh drum structure (3) is installed at the negative pressure interface. The mesh drum includes a frame body (31) and a metal mesh bag (32). The frame body (31) is provided with an air inlet and an air outlet. The air outlet is connected to the negative pressure interface. The metal mesh bag (32) is installed inside the frame body (31) and is used to filter impurities in the airflow. An airflow balancing chamber is provided inside the sorting box (1). A feed inlet is provided on the side wall of the sorting box (1) and feeds material into the airflow balancing chamber through the feed inlet. The air separation mechanism (2) is installed inside the sorting box (1).

2. The device for removing ultra-fine impurities from the airflow balance chamber of the tobacco impurity remover according to claim 1, characterized in that: It also includes a cleaning mechanism (4), which includes a cleaning motor (41) and a cleaning roller (42). The cleaning motor (41) is installed on the upper end of the sorting box (1). The two ends of the cleaning roller (42) are rotatably connected to the two ends of the frame body (31). The metal mesh bag (32) is installed on the cleaning roller (42) and thus installed inside the frame body (31). The cleaning roller (42) is arranged through the metal mesh bag (32). The cleaning roller (42) and the output shaft of the cleaning motor (41) are equipped with pulleys, and the two are connected by a belt.

3. The tobacco impurity removing machine airflow balance bin rejects ultra-clean ultra-fine impurity device according to claim 2, characterized in that: The impurity removal roller (42) is equipped with several sets of brushes (43), which are evenly arranged along the length of the impurity removal roller (42).

4. The tobacco impurity removing machine airflow balance bin rejects ultra-clean ultra-fine impurity device according to claim 3, characterized in that: It also includes lint-sticking rods (44), and several lint-sticking rods (44) are provided on the lint-sticking rods (44), and the several lint-sticking rods (44) are evenly arranged along the length direction of the impurity removal roller (42).

5. The tobacco impurity removing machine airflow balance bin rejects ultra-clean ultra-fine impurity device according to claim 1, characterized in that: The air separation mechanism (2) includes a centrifugal fan (21), a guide plate (22) and an adjusting cylinder (23). The centrifugal fan (21) is installed in the airflow balance chamber. One end of the guide plate (22) is hinged to the inner side wall of the sorting box (1). The adjusting cylinder (23) is installed inside the sorting box (1), and the piston rod of the adjusting cylinder (23) is not connected to one end of the guide plate (22).

6. The tobacco impurity removing machine airflow balance bin rejects ultra-clean ultra-fine impurity device according to claim 5, characterized in that: At least two centrifugal fans (21) are provided, and the two centrifugal fans (21) are respectively installed on both sides of the airflow balance chamber.

7. The device for removing ultra-fine impurities from the airflow balance chamber of a tobacco impurity remover according to claim 1, characterized in that: It also includes a vibrating screen (5), which is installed inside the airflow balance chamber and is inclined.

8. The device for removing ultra-fine impurities from the airflow balance chamber of a tobacco impurity remover according to claim 7, characterized in that: A collection box (7) is installed below the vibrating screen (5). An airflow balance chamber and a sorting box (1) are provided with openings on the lower side wall of the vibrating screen (5). The lower end of the vibrating screen (5) extends out of the opening and out of the box.

9. The tobacco impurity removing machine airflow balance bin rejects ultra-clean ultra-fine impurity device according to claim 1, characterized in that: It also includes a cleaning pipe (8), which is installed on the sorting box and connected to the mesh drum structure (3).

Images