Tobacco leaf sorting and dust removing device

Abstract

The utility model discloses a tobacco leaf sorting and dust removing device which comprises a machine frame and a belt conveyor installed on the machine frame, and a winnowing device which transversely supplies air relative to the running direction of the belt conveyor is arranged above the belt conveyor. The device is simple in structure and low in cost, and adopts a transverse air supply mode, so that transverse air can be blown along the surfaces of tobacco leaves, and dust and light impurities on the surfaces of the tobacco leaves can be blown away from the surfaces and taken away. In addition, a transverse air flow guide structure is added to guide airflow, so that a negative pressure flowing area can be formed from an area above the tobacco leaves to an airflow area, impurities on the surfaces of the tobacco leaves form dust flow to be taken away, and the dust removal effect and the dust removal efficiency are greatly improved. And dust in air in a workshop can be effectively reduced, the workshop environment is improved, and good practicability and popularization prospects are achieved.

Description

Technical Field

[0001] The utility model relates to a tobacco leaf sorting and dust removal device, belonging to the technical field of tobacco leaf processing. Background Art

[0002] In the process of tobacco leaf sorting, it is an essential process to remove debris from the surface of tobacco leaves. Currently, there are manual dust removal and air separation dust removal. Manual dust removal is inefficient, dust pollution is serious, and the working environment is poor, which affects the physical and mental health of workers. Air separation dust removal is simple and easy, and can greatly reduce the dust in the workshop air. For example, a leaf beating and redrying pretreatment device disclosed in application number 201921753429.2 includes a leaf laying table and a tobacco leaf cutting table, and a dust removal and humidification device is arranged between the leaf laying table and the tobacco leaf cutting table; the dust removal and humidification device includes an upper air inlet area and a lower air inlet area, and the leaf laying table, the lower air inlet area, the upper air inlet area, and the tobacco leaf cutting table are arranged closely in sequence; the bottom surfaces of the upper air inlet area and the lower air inlet area are vibrating belt conveyors, and the belts of the vibrating belt conveyors are mesh belts; the lower air inlet area is used to introduce high-humidity hot air from bottom to top, and the upper air inlet area is used to introduce high-humidity hot air from top to bottom. The device can increase the temperature, moisture content and softness of tobacco leaves, and reduce the crushing during the subsequent cutting and transportation process. However, the working principle of the device is that the tobacco leaves are spread on the mesh belt, and dust is removed after passing through the lower air inlet area and the upper air inlet area. However, the wind direction of the lower air inlet area and the upper air inlet area is perpendicular to the tobacco leaves, so that many impurities on the tobacco leaves are easily attached to the tobacco leaves due to the wind force, especially some flaky debris, which makes the cleaning not thorough enough. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a tobacco leaf sorting and dust removal device to at least solve the problems mentioned in the background technology.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A tobacco leaf sorting and dust removal device comprises a frame and a belt conveyor mounted on the frame, wherein a wind selection device for supplying air transversely to the running direction of the belt conveyor is arranged above the belt conveyor.

[0006] Furthermore, the air selection device includes a cover shell, both sides of which are connected to the top of both sides of the frame of the belt conveyor, and a fan is provided on one side of the cover shell, and a dust removal port is provided on the other side in an opposite position, and the dust removal port is connected to the dust collecting device.

[0007] Furthermore, a plurality of guide plates are provided in the housing, and the guide plates are arranged along the wind flow direction.

[0008] Furthermore, the adjacent guide plates are arranged with the same or different intervals, which can better divide and guide the airflow.

[0009] Furthermore, a diverter plate vertically downward relative to the guide plate is also provided in the air duct formed by the adjacent guide plates.

[0010] Furthermore, the splitter plate is a V-shaped structure that is wider at the front and narrower at the rear relative to the airflow direction.

[0011] Furthermore, the V-shaped structures are arranged regularly in each air duct, and the V-shaped structures in adjacent air ducts are arranged in alignment or in an unaligned manner.

[0012] Furthermore, the V-shaped structures are regularly arranged in different air ducts, and the V-shaped structures in the air ducts are aligned or non-aligned.

[0013] Furthermore, one or more V-shaped structures are provided in each air duct.

[0014] Furthermore, the air separation device is provided in two pieces, which can be connected by a belt conveyor.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model has a simple structure and low cost. It adopts a transverse air supply method, which allows the transverse wind to blow along the surface of the tobacco leaves, and can blow away the dust and light debris on the surface of the tobacco leaves. In addition, a transverse wind guide structure is added to guide the airflow, so that a negative pressure flow area can be formed from the area above the tobacco leaves to the airflow area, so that the impurities on the surface of the tobacco leaves are formed into a dust flow and taken away, greatly improving the dust removal effect and dust removal efficiency. It can also effectively reduce the dust in the workshop air and improve the workshop environment, and has good practicality and promotion prospects.

[0017] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings, in which:

[0019] Figure 1 A schematic diagram of the structure of a tobacco leaf sorting and dust removal device provided in Example 1 of the utility model;

[0020] Figure 2 for Figure 1 Schematic diagram of the internal structure of the winnowing device;

[0021] Figure 3A schematic diagram of the structure of the air selection device provided in Example 2 of the utility model;

[0022] Figure 4 for Figure 3 Schematic diagram of the bottom structure of the winnowing device Figure 1 ;

[0023] Figure 5 for Figure 3 Schematic diagram of the bottom structure of the winnowing device Figure 2 ;

[0024] Figure 6 for Figure 3 Schematic diagram of the bottom structure of the winnowing device Figure 3 .

[0025] In the figure: 1. Belt conveyor; 2. Cover; 3. Fan; 4. Dust removal port; 5. Guide plate; 6. Diverter plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] like Figure 1-2 As shown, a tobacco leaf sorting and dust removal device comprises a frame and a belt conveyor 1 mounted on the frame, and a wind selection device for supplying air transversely relative to the running direction of the belt conveyor 1 is provided above the belt conveyor 1. When tobacco leaves laid on the belt conveyor 1 pass through the wind selection device, the transverse wind supplied by the wind selection device can pass along the surface of the tobacco leaves, and dust and light debris on the surface of the tobacco leaves can be blown away from the surface and taken away.

[0029] The air separation device includes a cover shell 2, both sides of which are connected to the top of both sides of the frame of the belt conveyor 1, and a fan 3 is provided on one side of the cover shell 2, and a dust removal port 4 is provided on the other side in an opposite position, and the dust removal port 4 can be connected to a dust collecting device.

[0030] A plurality of guide plates 5 are provided in the housing 2, and the guide plates 5 are arranged along the wind direction. The airflow is guided by the guide plates 5, so that the airflow direction is strengthened and the dust flows in a uniform direction.

[0031] Adjacent guide plates 5 may be arranged at the same or different intervals, so as to better divide and guide the airflow.

[0032] Example 2

[0033] like Figure 3-6 As shown, on the basis of Example 1, a diverter plate 6 vertically downward relative to the diverter plate 5 is further provided in the air duct formed by the adjacent diverter plates 5. During the flow of the wind along the air duct formed by the diverter plates 5, part of the wind will flow downward under the action of the diverter plate 6, exerting a downward pressure on the surface of the tobacco leaves. When the tobacco leaves are affected by the horizontal wind flow, the dust and light debris on the surface of the tobacco leaves can be blown away from the surface and taken away, while preventing the tobacco leaves from being affected by the wind flow and moving.

[0034] The splitter plate 6 is a V-shaped structure with a width at the front and a narrowness at the back relative to the airflow direction, which can reduce the wind flow resistance and realize the wind flow splitting well.

[0035] The V-shaped structures are arranged regularly in each air duct, specifically, the V-shaped structures are arranged in each air duct, and the V-shaped structures in adjacent air ducts are arranged in an aligned or non-aligned manner. Alternatively, the V-shaped structures are arranged regularly in different air ducts, specifically, the V-shaped structures are arranged at intervals in different air ducts, and the V-shaped structures in the air ducts are arranged in an aligned or non-aligned manner. One or more V-shaped structures can be provided in each air duct. The arrangement of the V-shaped structures is flexibly set according to the air volume, and the air volume is adjusted according to the amount of impurities covering the tobacco leaves.

[0036] Example 3

[0037] On the basis of Examples 1 and 2, the air separation device can be set up as two pieces, which can be connected by a belt conveyor. One air separation device is used to remove dust and light debris on the upper surface of the tobacco leaves. After the tobacco leaves are turned over, they are passed through another air separation device to remove dust and light debris on the lower surface of the tobacco leaves.

[0038] The above is only a preferred embodiment of the utility model, and does not limit the confidentiality of the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still falls within the scope of the technical solution of the utility model.

Claims

1. A tobacco leaf sorting and dust removal device, comprising a frame and a belt conveyor (1) mounted on the frame, characterized in that: A wind selection device for supplying air transversely relative to the running direction of the belt conveyor (1) is provided above the belt conveyor (1); the wind selection device comprises a housing (2), the two sides of the housing (2) are connected to the top of the two sides of the frame of the belt conveyor (1), and a fan (3) is provided on one side of the housing (2), and a dust removal port (4) is provided on the other side of the housing (2), and the dust removal port (4) is connected to the dust collecting device; a plurality of guide plates (5) are provided in the housing (2), and the guide plates (5) are arranged along the wind flow direction; and a flow divider (6) is provided vertically downward relative to the guide plates (5) in the air duct formed by adjacent guide plates (5).

2. The tobacco leaf sorting and dust removal device according to claim 1, characterized in that: Adjacent guide plates (5) are arranged at the same or different intervals, so as to better divide and guide the airflow.

3. The tobacco leaf sorting and dust removal device according to claim 1, characterized in that: The splitter plate (6) is a V-shaped structure that is wider at the front and narrower at the back relative to the airflow direction.

4. The tobacco leaf sorting and dust removal device according to claim 3, characterized in that: The V-shaped structures are arranged regularly in each air duct, and the V-shaped structures in adjacent air ducts are arranged in alignment or in an unaligned manner.

5. The tobacco leaf sorting and dust removal device according to claim 3, characterized in that: The V-shaped structures are regularly arranged in different air ducts, and the V-shaped structures in the air ducts are aligned or non-aligned.

6. The tobacco leaf sorting and dust removal device according to claim 3, characterized in that: One or more V-shaped structures are provided in each air duct.

7. The tobacco leaf sorting and dust removal device according to any one of claims 1 to 6, characterized in that: The air selection device is provided in two parts, which can be connected by a belt conveyor.

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