Tobacco feeding and filtering device and tobacco feeding system

Abstract

This application relates to the field of tobacco production technology, and in particular to a tobacco feeding and filtering device and a tobacco feeding system. The tobacco feeding and filtering device includes a cylinder, a filter assembly, and a feed pipe. The cylinder has a first chamber and a second chamber. The filter assembly is installed in the first chamber and forms a feeding chamber with the inner wall of the cylinder. The feed pipe is installed on the cylinder and has an inlet and an outlet. The material in the feeding chamber flows into the second chamber after being filtered by the filter assembly. The axis of the outlet intersects the inner circumferential wall of the cylinder at points A and B, and the arc between points A and B is a minor arc, with the circular angle θ corresponding to the minor arc being less than 90°. Thus, after the liquid enters the feeding chamber, it first reaches the inner circumferential wall of the cylinder, causing some large molecular particles to adhere to the inner circumferential wall before being filtered by the filter assembly. This avoids direct contact with the filter assembly and potential clogging, reducing fluctuations in the feeding flow rate.

Description

Technical Field

[0001] This utility model relates to the field of tobacco production technology, and in particular to a tobacco feeding and filtering device and a tobacco feeding system. Background Technology

[0002] As an important part of tobacco processing to improve the quality of tobacco products, the tobacco feeding system is usually equipped with a filtration device to filter the added formula liquid to remove larger particles or crystalline impurities, thus ensuring the quality of the finished tobacco product.

[0003] Existing tobacco feeding and filtration devices mainly consist of a shell and a filter screen. The filtrate passes directly through the shell and then through the filter screen for feeding. This structure and process setting is prone to filter screen clogging due to the precipitates or large molecular impurities often contained in the filtrate. Filter screen clogging causes fluctuations in feeding flow and substandard feeding accuracy, which seriously affects the stability and reliability of the tobacco feeding system. Utility Model Content

[0004] Therefore, it is necessary to provide a tobacco feeding and filtering device and a tobacco feeding system that can effectively avoid filter clogging, reduce feeding flow fluctuations, and improve feeding accuracy.

[0005] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0006] A tobacco feeding and filtering device includes a cylindrical body, a filter assembly, and a feed pipe. Along the axial direction of the cylindrical body, the interior of the cylindrical body is divided into a first chamber and a second chamber. The first chamber is located above the second chamber. The filter assembly is installed in the first chamber and forms a feeding chamber with the inner wall of the cylindrical body. The feed pipe is installed on the cylindrical body and has an inlet and an outlet. The inlet is located outside the cylindrical body, and the outlet communicates with the feeding chamber and is flush with the inner circumferential wall of the cylindrical body. The liquid material in the feeding chamber flows into the second chamber after being filtered by the filter assembly.

[0007] The axis of the discharge port intersects the inner circumferential wall of the cylinder at points A and B, and the arc between points A and B is configured as a minor arc, and the circular angle θ corresponding to the minor arc is less than 90°.

[0008] Understandably, this application constructs a feeding chamber between the filter assembly and the inner wall of the cylinder, and configures the arc between the two points where the axis of the feed pipe's outlet intersects the inner circumferential wall of the cylinder as a minor arc. This allows the liquid to first enter the feeding chamber through the feed pipe and reach the inner circumferential wall of the cylinder before entering the filter assembly. The speed at which the liquid enters the feeding chamber creates self-stirring, ensuring thorough dissolution of precipitates and preventing crystallization that could clog the filter assembly. Furthermore, the liquid reaches the inner circumferential wall of the cylinder first, causing some large particles to adhere to it before being filtered by the filter assembly. This avoids direct contact and clogging of the filter assembly by large particles, reducing fluctuations in the feed flow rate. Simultaneously, the cylinder is divided into a first chamber and a second chamber. After passing through the filter assembly, the liquid flows into the second chamber and then out, allowing for accumulation and buffering in the second chamber, further reducing flow rate fluctuations and improving feeding accuracy.

[0009] In one embodiment, the range of the circular angle θ corresponding to the minor arc is set to 30°≤θ<90°.

[0010] Understandably, setting the circular angle θ corresponding to the minor arc within the range of 30° to 90° can prevent the material from being blocked when entering the feeding chamber due to an excessively small circular angle θ, thus preventing it from passing smoothly through the filter assembly for filtration, or causing the material to directly reach the filter assembly due to an excessively large circular angle θ, resulting in filter assembly blockage. In other words, by limiting the circular angle θ, the agitation of the material is increased while ensuring that the material enters the feeding chamber smoothly, and the material can first reach the inner peripheral wall of the cylinder before passing through the filter assembly, reducing the possibility of filter assembly blockage and fluctuations in the feeding flow rate.

[0011] In one embodiment, the tobacco feeding and filtering device also includes a discharge pipe. In the axial direction of the cylinder, the feed pipe and the discharge pipe are disposed at both ends of the cylinder. The discharge pipe is connected to the cylinder and located below the feed pipe, and is connected in communication with the second cavity.

[0012] In one embodiment, a partition is provided in the second cavity, and in the axial direction of the cylinder, the partition divides the second cavity into a buffer cavity and a discharge cavity, with the buffer cavity located between the first cavity and the discharge cavity;

[0013] The partition is configured as a filter plate. The liquid filtered by the filter assembly enters the buffer chamber and is filtered again by the filter plate before entering the discharge chamber.

[0014] It is understandable that the baffle plate in the second chamber is set as a filter plate so that the liquid can be filtered twice to ensure the quality of the liquid. The liquid can also be buffered in the buffer chamber before entering the discharge chamber. In this way, fluctuations in the feed flow rate are avoided and the feeding accuracy is improved.

[0015] In one embodiment, the mesh size of the filter pores on the filter plate is greater than the mesh size of the filter pores on the filter assembly.

[0016] Understandably, this setup allows for the first removal of larger particles of impurities through the filter components, followed by the removal of smaller particles through the filter plate, resulting in a higher quality filtrate and improved tobacco quality.

[0017] In one embodiment, the filter assembly includes a mounting plate and a filter screen, the mounting plate being installed inside the cylinder and dividing the interior of the cylinder into a first cavity and a second cavity;

[0018] The filter screen is located inside the first cavity and installed on the mounting plate, forming the feeding cavity between the filter screen and the cavity wall of the first cavity.

[0019] In one embodiment, the filter assembly further includes a pull handle mounted on the end of the filter screen away from the mounting plate.

[0020] Understandably, the pull handle design makes it easier for maintenance personnel to repair and maintain the filter components, thus improving the user experience of the tobacco feeding filter device.

[0021] In one embodiment, the filter assembly further includes a first sealing gasket, a positioning plate is provided on the inner peripheral wall of the cylinder, the mounting plate is installed on the positioning plate, and the first sealing gasket is sealed between the positioning plate and the mounting plate.

[0022] Understandably, the first sealing gasket improves the seal between the mounting plate and the positioning plate, ensuring that the filtrate passes through the filter screen before entering the second chamber, thus guaranteeing the filtrate filtration effect.

[0023] In one embodiment, the cylindrical body has an opening along its own axial direction, the opening communicating with the first cavity, and the filter assembly is installed into the first cavity through the opening;

[0024] The opening is covered with a removable cover plate.

[0025] Understandably, installing a cover plate at the opening ensures the cylinder's airtightness and allows maintenance personnel to regularly remove the cover plate to clean, replace, or inspect the filter components, thereby improving the efficiency of tobacco feeding.

[0026] This application also provides a tobacco feeding system, including the tobacco feeding and filtering device in any of the above embodiments.

[0027] Compared with existing technologies, the tobacco feeding and filtering device and tobacco feeding system form a feeding chamber between the filter assembly and the inner wall of the cylinder. The arc between the two points where the axis of the feed pipe's outlet intersects the inner wall of the cylinder is configured as a minor arc. This allows the liquid to enter the feeding chamber first through the feed pipe and reach the inner wall of the cylinder before entering the filter assembly. The speed at which the liquid enters the feeding chamber creates self-stirring, ensuring thorough dissolution of precipitates and preventing crystallization that could clog the filter assembly. Furthermore, the liquid reaches the inner wall of the cylinder first, causing some large particles to adhere to it before being filtered by the filter assembly. This avoids direct contact and clogging of the filter assembly by large particles, reducing fluctuations in the feeding flow rate. Simultaneously, the cylinder is divided into a first chamber and a second chamber. After passing through the filter assembly, the liquid flows into the second chamber and then out, allowing for accumulation and buffering in the second chamber, further reducing flow rate fluctuations and improving feeding accuracy. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the tobacco feeding and filtering device provided in this application.

[0030] Figure 2 This is a simplified structural diagram of the feed pipe and cylinder provided in this application.

[0031] Figure 3 A schematic diagram of the structure of a tobacco feeding and filtering device from another perspective provided in this application.

[0032] Figure 4 Provided for this application Figure 3 A schematic diagram of the cross-sectional structure at point AA.

[0033] Figure 5 This is a schematic diagram of the structure of the filtering component provided in this application.

[0034] Figure 6 Provided for this application Figure 4 A magnified structural diagram at point B in the middle.

[0035] Figure 7 Provided for this application Figure 4 A magnified structural diagram at point C.

[0036] The component labels are as follows:

[0037] 100. Tobacco feeding and filtering device; 10. Cylinder; 11. First chamber; 12. Second chamber; 121. Partition; 122. Buffer chamber; 123. Discharge chamber; 13. Feeding chamber; 14. Opening; 20. Filter assembly; 21. Mounting plate; 22. Filter screen; 23. Lifting handle; 24. First sealing gasket; 25. Positioning plate; 30. Feed pipe; 31. Feed inlet; 32. Discharge outlet; 40. Discharge pipe; 50. Cover plate; 51. Second sealing gasket. Detailed Implementation

[0038] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application 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 thorough understanding of this application. However, this application 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 application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0039] It should be noted that when a structure is referred to as being "fixed to" or "set on" another structure, it can be directly on the other structure or there may be an intermediate structure. When a structure is considered to be "connected" to another structure, it can be directly connected to the other structure or there may be an intermediate structure. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0040] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this application, unless otherwise expressly 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 and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is 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 can mean that the first feature is 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.

[0042] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0043] Please see Figures 1 to 4 This application provides a tobacco feeding and filtering device 100, which includes a cylindrical body 10, a filter assembly 20, and a feed pipe 30. Along the axial direction of the cylindrical body 10, the interior of the cylindrical body 10 is divided into a first chamber 11 and a second chamber 12. The first chamber 11 is located above the second chamber 12. The filter assembly 20 is installed in the first chamber 11 and forms a feeding chamber 13 between itself and the inner wall of the cylindrical body 10. The feed pipe 30 is installed on the cylindrical body 10. The cylinder 10 has an inlet 31 and an outlet 32. The inlet 31 is located outside the cylinder 10. The outlet 32 ​​is connected to the feeding chamber 13 and is flush with the inner circumferential wall of the cylinder 10. The liquid in the feeding chamber 13 flows into the second chamber 12 after being filtered by the filter assembly 20. The axis of the outlet 32 ​​intersects the inner circumferential wall of the cylinder 10 at two points A and B. The arc between points A and B is configured as a minor arc, and the circular angle θ corresponding to the minor arc is less than 90°.

[0044] It is understood that this application forms a feeding chamber 13 between the filter assembly 20 and the inner wall of the cylinder 10, and configures the arc between the two points where the axis of the outlet 32 ​​of the feed pipe 30 intersects the inner peripheral wall of the cylinder 10 as a minor arc, so that the liquid material first enters the feeding chamber 13 through the feed pipe 30 and reaches the inner peripheral wall of the cylinder 10, and then enters the filter assembly 20. Thus, the speed at which the liquid enters the feeding chamber 13 causes it to self-stir, thereby fully dissolving precipitates and sugars in the liquid, preventing some liquid from crystallizing and clogging the filter assembly, and flushing and tilting the filter assembly 20, improving filtration efficiency and the uniformity of liquid mixing. After entering the feeding chamber 13, the liquid first reaches the inner wall of the cylinder 10, causing some large molecular particles to adhere to the inner wall before passing through the filter assembly 20 for filtration. This avoids some large molecular particles directly contacting the filter assembly 20 and causing it to clog, reducing fluctuations in the feeding flow rate. At the same time, the inside of the cylinder is divided into a first chamber 11 and a second chamber 12. After passing through the filter assembly 20, the liquid flows into the second chamber 12 and then out, allowing the liquid to accumulate and buffer in the second chamber 12, further reducing fluctuations in the feeding flow rate and improving the accuracy of feeding.

[0045] Here, the cylinder 10 can protect the filter assembly 20, providing a robust physical shell to prevent it from being damaged by collisions, squeezing or external forces during installation, operation or maintenance, and can prevent external dust, debris and other objects from directly contacting the filter assembly 20, ensuring the stability of the filtration performance of the filter assembly 20 and extending its service life.

[0046] Furthermore, such as Figure 2 As shown, the range of the circular angle θ corresponding to the minor arc is set to 30°≤θ<90°. This avoids the situation where the circular angle θ is too small, causing the liquid to be blocked when entering the feeding chamber 13 and unable to pass smoothly through the filter assembly 20 for filtration, or the circular angle θ is too large, causing the liquid to directly reach the filter assembly 20 and cause it to become clogged. In other words, by limiting the circular angle θ, the mixing degree of the liquid is increased while ensuring that the liquid can enter the feeding chamber smoothly, and the liquid can reach the inner peripheral wall of the cylinder 10 before passing through the filter assembly 20, so as to avoid the fluctuation of the feeding flow rate due to the clogging of the filter assembly 20.

[0047] Here, the value of the rounded angle θ corresponding to the minor arc can be 30°, 40°, 60°, 80°, 90°, etc. Of course, it is not limited to these values; the specific value of the rounded angle θ corresponding to the minor arc can be determined according to the actual situation. In this embodiment, the value of the rounded angle θ corresponding to the minor arc is 40°.

[0048] like Figure 4As shown, a partition 121 is provided in the second chamber 12. Along the axial direction of the cylinder 10, the partition 121 divides the second chamber 12 into a buffer chamber 122 and a discharge chamber 123. The buffer chamber 122 is located between the first chamber 11 and the discharge chamber 123. The partition 121 is configured as a filter plate. The liquid material filtered by the filter assembly 20 enters the buffer chamber 122 and is filtered again by the filter plate before entering the discharge chamber 123. In this way, the liquid material can undergo double filtration by the tobacco feeding filter device 100, ensuring the quality of the liquid material. Furthermore, the liquid material can be buffered in the buffer chamber 122 before entering the discharge chamber 123, thereby avoiding fluctuations in the feeding flow rate and improving the feeding accuracy.

[0049] In one embodiment, the mesh size of the filter holes on the filter plate is greater than that on the filter assembly 20. This configuration allows for the first removal of larger particles of impurities by the filter assembly 20, followed by the removal of smaller particles by the filter plate, resulting in a higher quality filtrate and improved tobacco quality.

[0050] In this embodiment, the mesh size of the filter holes on the filter assembly 20 is set to 16 mesh, and the mesh size of the filter holes on the filter plate is set to 32 mesh. Of course, this is not the only limitation; the mesh size of the filter assembly 20 and the filter plate can be set according to the actual liquid conditions.

[0051] Please continue to refer to this. Figure 4 The cylinder 10 has an opening 14 along its own axis, which communicates with the first chamber 11. The filter assembly 20 is installed into the first chamber 11 through the opening 14. A removable cover plate 50 is provided at the opening 14. In this way, the cover plate 50 ensures the sealing of the cylinder 10, preventing contamination during the filtration process. The removable design also allows maintenance personnel to periodically remove the cover plate 50 to remove the filter assembly 20 for cleaning, replacement, or inspection, thereby improving the efficiency of tobacco feeding.

[0052] Here, the cover plate 50 and the cylinder 10 can be connected by structures such as flanges and bolts to ensure the stability and firmness of the connection between the two.

[0053] like Figures 4 to 6 As shown, the filter assembly 20 includes a mounting plate 21 and a filter screen 22. The mounting plate 21 is installed inside the cylinder 10 and divides the inside of the cylinder 10 into a first cavity 11 and a second cavity 12. The filter screen 22 is located inside the first cavity 11 and is installed on the mounting plate 21, forming a feeding cavity 13 between the filter screen 21 and the cavity wall of the first cavity 11.

[0054] It should be explained that the filter holes of the filter component 20 are located on the filter screen 22.

[0055] Furthermore, the filter assembly 20 also includes a pull handle 23, which is installed at the end of the filter screen 22 away from the mounting plate 21. Understandably, the pull handle 23 is designed to facilitate maintenance personnel in repairing and maintaining the filter assembly 20, thereby improving the user experience of the tobacco feeding filter device 100.

[0056] In one embodiment, the filter assembly 20 further includes a first sealing gasket 24. A positioning plate 25 is disposed on the inner peripheral wall of the cylinder 10, and a mounting plate 21 is mounted on the positioning plate 25. The first sealing gasket 24 is sealed between the positioning plate 25 and the mounting plate 21. It is understood that the first sealing gasket 24 can improve the sealing between the mounting plate 21 and the positioning plate 25, ensuring that the filtrate can be filtered through the filter screen 22 before entering the second chamber 12, thereby ensuring the filtrate filtration effect.

[0057] Please continue to refer to this. Figure 1 and Figure 3 The tobacco feeding and filtering device 100 also includes a discharge pipe 40. In the axial direction of the cylinder 10, the feed pipe 30 and the discharge pipe 40 are located at both ends of the cylinder 10. The discharge pipe 40 is connected to the cylinder 10 and located below the feed pipe 30, and is connected to the second chamber 12.

[0058] like Figure 7 As shown, in one embodiment, a second sealing gasket 51 is provided between the cylinder 10 and the cover plate 50 to ensure the sealing effect of the cylinder 10 during filtration, and to prevent impurities from entering the filtrate and affecting the quality of the filtrate.

[0059] The installation process of the tobacco feeding and filtering device 100 of this application is as follows:

[0060] The mounting plate 21 and the lifting handle 23 are respectively threaded to both ends of the filter screen 22 in the axial direction, ensuring that the connection is secure. Then, the lifting handle 23 is used to place the filter assembly 20 into the positioning plate 25 inside the cylinder 10, forming the feeding chamber 13. After that, the cover plate 50 is aligned with the opening 14 of the cylinder 10, ensuring that there is no gap between the cover plate 50 and the cylinder 10. Finally, the cover plate 50 is fixedly connected to the cylinder 10 with screws. At this point, the assembly of the device is complete.

[0061] When it is necessary to inspect, repair or replace the filter assembly 20, the filter assembly 20 can be pulled out by applying the lifting handle 23 after opening the cover 50, so as to carry out the above inspection or replacement.

[0062] This application also provides a tobacco feeding system, including the tobacco feeding and filtering device 100 in the above embodiments.

[0063] Here, the feed pipe 30 and discharge pipe 40 of the tobacco feeding and filtering device 100 are respectively connected to other tobacco feeding devices to ensure seamless operation of the feeding system.

[0064] 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.

[0065] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A tobacco-primed filter device, characterized by, The tobacco feeding and filtering device includes a cylinder, a filter assembly, and a feed pipe. Along the axial direction of the cylinder, the interior of the cylinder is divided into a first chamber and a second chamber. The first chamber is located above the second chamber. The filter assembly is installed in the first chamber and forms a feeding chamber with the inner wall of the cylinder. The feed pipe is installed on the cylinder and has an inlet and an outlet. The inlet is located outside the cylinder, and the outlet communicates with the feeding chamber and is flush with the inner circumferential wall of the cylinder. The liquid in the feeding chamber flows into the second chamber after being filtered by the filter assembly. The axis of the discharge port intersects the inner circumferential wall of the cylinder at points A and B, and the arc between points A and B is configured as a minor arc, and the circular angle θ corresponding to the minor arc is less than 90°.

2. The tobacco feeding and filtering device according to claim 1, characterized in that, The range of the circular angle θ corresponding to the minor arc is set to 30°≤θ<90°.

3. The tobacco feeding and filtering device according to claim 1, characterized in that, The tobacco feeding and filtering device also includes a discharge pipe. In the axial direction of the cylinder, the feed pipe and the discharge pipe are located at both ends of the cylinder. The discharge pipe is connected to the cylinder and located below the feed pipe, and is connected to the second cavity.

4. The tobacco feeding and filtering device according to claim 3, characterized in that, A partition is provided inside the second cavity, and in the axial direction of the cylinder, the partition divides the second cavity into a buffer cavity and a discharge cavity, with the buffer cavity located between the first cavity and the discharge cavity; The partition is configured as a filter plate. The liquid filtered by the filter assembly enters the buffer chamber and is filtered again by the filter plate before entering the discharge chamber.

5. The tobacco feeding and filtering device according to claim 4, characterized in that, The mesh size of the filter holes on the filter plate is greater than that of the filter holes on the filter assembly.

6. The tobacco feeding and filtering device according to claim 1, characterized in that, The filter assembly includes a mounting plate and a filter screen. The mounting plate is installed inside the cylinder and divides the inside of the cylinder into the first cavity and the second cavity. The filter screen is located inside the first cavity and installed on the mounting plate, forming the feeding cavity between the filter screen and the cavity wall of the first cavity.

7. The tobacco feeding and filtering device according to claim 6, characterized in that, The filter assembly also includes a pull handle, which is mounted on the end of the filter screen away from the mounting plate.

8. The tobacco feeding and filtering device according to claim 6, characterized in that, The filter assembly further includes a first sealing gasket, a positioning plate is provided on the inner peripheral wall of the cylinder, the mounting plate is installed on the positioning plate, and the first sealing gasket is sealed between the positioning plate and the mounting plate.

9. The tobacco feeding and filtering device according to claim 1, characterized in that, The cylindrical body has an opening along its own axial direction, the opening being in communication with the first cavity, and the filter assembly being installed into the first cavity through the opening; The opening is covered with a removable cover plate.

10. A tobacco feeding system, characterized in that, Includes the tobacco feeding and filtering device as described in any one of claims 1-9.

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