System for separating tobacco stems and leaves after threshing

Abstract

The utility model relates to a tobacco stem and leaf separation system after threshing. The tobacco stem and leaf separation system comprises a stem and leaf separation device, an air separation chamber, an air blower and an electronic scale. A discharge port of the stem and leaf separation device is connected with a feed port of the air separation chamber through a vibration conveyor A; the air blower is connected with the air separation chamber and provides air power for the air separation chamber; a stem and leaf receiving device is arranged below the air separation chamber; the stem and leaf separating device comprises a rack stand column and a separating cabin, the separating cabin is in a roller shape and transversely erected on the rack stand column, one end of the separating cabin is a feeding port, the other end of the separating cabin is a discharging port, and the end of the feeding port is higher than the end of the discharging port. And stems and leaves of the passing materials are separated under the rotary centrifugal action. According to the utility model, a mechanical automation means is used for replacing manual detection of leaves contained in stems, so that the working efficiency is further improved; an instrument is used for detecting the stem-contained leaves, and the influence caused by manual subjectivity and personnel change fluctuation is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of cigarette processing equipment, and in particular to a system for separating tobacco leaves and stems after leaf trimming. Background Technology

[0002] In the re-drying plant, tobacco leaves need to undergo a process of separating the leaves from the stems. The working principle is that after being heated and humidified, the overall toughness of the tobacco leaves is further enhanced, while the stress concentration at the point where the leaf attaches to the stem is reduced. Therefore, by applying a certain amount of external force, the tobacco leaf can be torn from the stem—this is the threshing process. The percentage of leaves remaining on the stem is an important indicator of the threshing effect, reflecting how many leaves failed to be effectively separated from the stem during the entire threshing process.

[0003] Currently, most quality indicators in the entire re-drying process have corresponding testing instruments. However, the detection of stem content in leaves is still done manually. The specific method is as follows: quality inspectors take a certain weight of sample at the tobacco stem discharge collection belt in the leaf and stem separation process and weigh the total weight. Then, the leaves attached to the tobacco stems in the sample are manually torn off and weighed. Finally, the proportion of these torn leaves to the total weight of the sample is used to indicate the stem content of the tobacco after leaf removal.

[0004] Therefore, the whole process is inefficient and slow, and the testing process is greatly affected by the subjectivity of the testing personnel, with large fluctuations in the results of different personnel. Utility Model Content

[0005] To address the shortcomings of the existing technology, this utility model provides a tobacco stem-leaf separation system after leaf removal. By using this system to separate the stems and leaves and directly collect the test material, the detection efficiency of the entire stem-leaf mixture is improved, and the influence of fluctuations in test results caused by differences in testing personnel is further eliminated. Specifically, the technical solution of this utility model to achieve the above objectives is as follows:

[0006] A stem and leaf separation system for threshed tobacco includes: a stem and leaf separation device, an air separation chamber, a blower, and an electronic scale; the outlet of the stem and leaf separation device is connected to the inlet of the air separation chamber via a vibrating conveyor A; the blower is connected to the air separation chamber and provides airflow to the air separation chamber; a stem and leaf receiving device is provided below the air separation chamber; the stem and leaf separation device includes a frame column and a separation chamber, the separation chamber being roller-shaped and horizontally mounted on the frame column, with one end of the separation chamber being the inlet and the other end being the outlet, and the inlet end being higher than the outlet end; the stems and leaves are separated from the passing material by rotational centrifugal force.

[0007] Furthermore, it also includes a cyclone separator and a blade receiving device; the cyclone separator is installed between the air separation chamber and the blower, and shares an air path with the air separation chamber. The material separated by the air separation chamber enters the cyclone separator for separation and is then output to the next process; the blade receiving device is installed below the cyclone separator.

[0008] Furthermore, a vibrating conveyor B is provided at the front end of the stem and leaf separation device, and a material leveling roller is provided above the vibrating conveyor B; the material conveyed by the vibrating conveyor B enters the feed inlet of the stem and leaf separation device.

[0009] Furthermore, the inner wall of the separation chamber has a rough surface.

[0010] Furthermore, the mounting plane of the air separation chamber and the cyclone separator is lower than the mounting plane of the blade separation device; a collection funnel is provided below the cyclone separator, and the blade receiving device is installed below the collection funnel.

[0011] The testing personnel first place the sample to be tested on the electronic scale 12 to measure the total weight of the sample and record the data. Then, the weighed sample is placed on the vibrating conveyor B8. The material is fed evenly to the stem and leaf separation device 1 by the flow control of the feeding roller 9. The sample is subjected to centrifugal force by the rotation of the stem and leaf separation device 1, which will cause friction with the rough surface of its inner wall to achieve the purpose of stem and leaf separation. Due to the inclined design of the stem and leaf separation device 1, the final mixture of stems and leaves will fall onto the vibrating conveyor A4 and continue to be conveyed forward into the air separation chamber 2. Here, the heavier tobacco stems fall and are collected by the tobacco stem collecting device, while the lighter leaves and debris are separated by the cyclone separator 6 through the air duct and fall into the leaf collecting device 7. The separation air in the entire air separation process is provided by the blower 3. Finally, the tobacco stems collected by the tobacco stem collecting device are placed on the electronic scale 12 for weighing, the data is recorded, and the stem and leaf content of this test can be calculated by the following formula: Stem and leaf content = Total sample weight - tobacco stem weight / Total sample weight * 100%. If further measurement of leaf debris content is required, a sample can be taken from the leaf collection device 7 for measurement.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] This invention fills the gap in the current lack of a dedicated instrument for detecting stems and leaves; it uses mechanical automation to replace manual detection of stems and leaves, further improving work efficiency; and it uses an instrument to detect stems and leaves, avoiding the influence of human subjectivity and personnel fluctuations. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the system connection described in this utility model;

[0015] Figure 2 This is a schematic diagram of the working state of the system described in this utility model;

[0016] In the picture:

[0017] 1—Stem-leaf separation device, 2—Air distribution chamber,

[0018] 3—Blower, 4—Vibrating conveyor A, 5—Stem and blade receiving device, 6—Cyclone separator, 7—Blade

[0019] Receiving device, 8—Vibrating conveyor B, 9—Packaging roller, 10—Collection funnel, 11—Frame column,

[0020] 11—Electronic scale. Detailed Implementation

[0021] like Figure 1-2 As shown, the embodiments of this utility model are as follows:

[0022] A stem and leaf separation system for threshed tobacco includes: a stem and leaf separation device 1, an air separation chamber 2, a blower 3, a cyclone separator 6, a leaf receiving device 7, and an electronic scale 12. The outlet of the stem and leaf separation device 1 is connected to the inlet of the air separation chamber 2 via a vibrating conveyor A4. The blower 3 is connected to the air separation chamber 2 and provides airflow to it. The stem and leaf receiving device 5 is located below the air separation chamber 2. The stem and leaf separation device 1 includes a frame column 11 and a separation chamber. The separation chamber is roller-shaped and horizontally mounted on the frame column 11. One end of the separation chamber is the inlet, and the other end is the outlet, with the inlet end higher than the outlet end. The material is separated into stems and leaves through centrifugal rotation. A vibrating conveyor B8 is located at the front end of the stem and leaf separation device 1, and a leveling roller 9 is located above the vibrating conveyor B8. The material conveyed by the vibrating conveyor B8 enters the inlet of the stem and leaf separation device 1. The inner wall of the separation chamber has a rough surface.

[0023] Cyclone separator 6 is installed between air separation chamber 2 and blower 3, sharing an air path with air separation chamber 2. The material separated by air separation chamber 2 enters cyclone separator 6 for separation before being output to the next process. Blade receiving device 7 is installed below cyclone separator 6. The installation plane of air separation chamber 2 and cyclone separator 6 is lower than the installation plane of blade separation device 1. A collection funnel 10 is provided below cyclone separator 6, and blade receiving device 7 is installed below collection funnel 10.

[0024] The testing personnel first place the sample to be tested on the electronic scale 12 to measure the total weight of the sample and record the data. Then, the weighed sample is placed on the vibrating conveyor B8. The material is fed evenly to the stem and leaf separation device 1 by the flow control of the feeding roller 9. The sample is subjected to centrifugal force by the rotation of the stem and leaf separation device 1, which will cause friction with the rough surface of its inner wall to achieve the purpose of stem and leaf separation. Due to the inclined design of the stem and leaf separation device 1, the final mixture of stems and leaves will fall onto the vibrating conveyor A4 and continue to be conveyed forward into the air separation chamber 2. Here, the heavier tobacco stems fall and are collected by the tobacco stem collecting device, while the lighter leaves and debris are separated by the cyclone separator 6 through the air duct and fall into the leaf collecting device 7. The separation air in the entire air separation process is provided by the blower 3. Finally, the tobacco stems collected by the tobacco stem collecting device are placed on the electronic scale 12 for weighing, the data is recorded, and the stem and leaf content of this test can be calculated by the following formula: Stem and leaf content = Total sample weight - tobacco stem weight / Total sample weight * 100%. If further measurement of leaf debris content is required, a sample can be taken from the leaf collection device 7 for measurement.

[0025] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A system for separating tobacco leaves, stems, and husks after threshing, characterized in that, include: The device includes a stem and leaf separation device (1), an air separation chamber (2), a blower (3), and an electronic scale (12). The outlet of the stem and leaf separation device (1) is connected to the inlet of the air separation chamber (2) via a vibrating conveyor A (4). The blower (3) is connected to the air separation chamber (2) and provides air to the air separation chamber (2). A stem and leaf receiving device (5) is provided below the air separation chamber (2). The stem and leaf separation device (1) includes a frame column (11) and a separation chamber. The separation chamber is roller-shaped and is horizontally mounted on the frame column (11). One end of the separation chamber is the inlet and the other end is the outlet, and the inlet end is higher than the outlet end. The stem and leaf are separated from the material passing through by rotational centrifugal action.

2. The tobacco stem-leaf separation system after leaf trimming as described in claim 1, characterized in that: It also includes a cyclone separator (6) and a blade receiving device (7); the cyclone separator (6) is installed between the air separation chamber (2) and the blower (3), and shares an air path with the air separation chamber (2). The material separated by the air separation chamber (2) enters the cyclone separator (6) for separation and is then output to the next process; the blade receiving device (7) is installed below the cyclone separator (6).

3. The tobacco stem and leaf separation system after leaf trimming as described in claim 1, characterized in that: The stem and leaf separation device (1) is equipped with a vibrating conveyor B (8) at the front end, and a material equalization roller (9) is provided above the vibrating conveyor B (8); the material conveyed by the vibrating conveyor B (8) enters the feed port of the stem and leaf separation device (1).

4. A tobacco stem-leaf separation system after leaf trimming as described in claim 1 or 3, characterized in that: The inner wall of the separation chamber has a rough surface.

5. The tobacco stem-leaf separation system after leaf trimming as described in claim 2, characterized in that: The mounting plane of the air separation chamber (2) and the cyclone separator (6) is lower than the mounting plane of the stem-blade separation device (1); a collection funnel (10) is provided below the cyclone separator (6), and the blade receiving device (7) is installed below the collection funnel (10).

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