Winnowing cut stem separating device

Abstract

The utility model relates to the technical field of tobacco processing, and discloses a winnowing cut stem separating device which comprises a winnowing box body, a filter screen is obliquely arranged in the winnowing box body and located below a feeding port, a first partition plate and a second partition plate are arranged on the inner wall of the winnowing box body at the lowest point of the filter screen, and the first partition plate and the second partition plate are arranged in an inverted V shape. The bottom of the winnowing box body is provided with a first air supplement hole plate corresponding to the first partition plate and a second air supplement hole plate corresponding to the second partition plate, a first air guide plate is arranged between the first air supplement hole plate and the filter screen, a second air guide plate is arranged between the second air supplement hole plate and the second partition plate, and a discharging channel is formed between the second air guide plate and the second partition plate. The problem that in the prior art, the air speed of an air separation channel cannot be adjusted according to the actual situation of cut stems, and consequently the cut stems cannot be separated thoroughly or are separated excessively, and material waste is caused is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco processing, in particular to a wind-selected cut stem separation device. Background Art

[0002] During cigarette production, to improve tobacco leaf utilization, relatively large tobacco stems are shredded using a special process during the tobacco-making process. The resulting shredded stems are then mixed with tobacco, spices, and tobacco flakes in a specific proportion before entering the subsequent cigarette-making process. Furthermore, to improve the sensory quality of cigarettes, shredded stems containing a certain amount of impurities such as stem ends, grains, and stem sticks are screened to remove these impurities, which can affect cigarette quality.

[0003] When separating shredded stems, it is usually necessary to blow air through an air separation channel. However, the existing air separation channel has only two states: open and closed. The wind speed cannot be adjusted according to the actual situation of the shredded stems, resulting in unclean separation of the shredded stems or excessive separation, causing material waste. Especially under high-flow continuous production conditions, improving the air separation rate of shredded stems is a key issue that needs to be urgently addressed by technical personnel in this field. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a wind-selected shredded stem separation device to solve the problem in the prior art that the wind selection channel cannot adjust the wind speed according to the actual situation of the shredded stems, resulting in unclean or excessive separation of the shredded stems and causing material waste.

[0005] The utility model solves the above technical problems through the following technical means: a wind-selected shredded stem separation device, comprising a wind-selected box body, a shredded stem conveying pipe is provided on the top of the wind-selected box body, the shredded stem conveying pipe is used to connect to the fan providing negative pressure suction, a feed port is provided on one side of the wind-selected box body, the feed port is connected to a feed device for throwing material into the wind-selected box body, a filter is obliquely arranged below the feed port in the wind-selected box body, a first partition and a second partition are provided on the inner wall of the wind-selected box body at the lowest point of the filter, and the first partition and the second partition are arranged in an inverted V shape; a first air supply hole plate is provided at the bottom of the wind-selected box body corresponding to the first partition, and a second air supply hole plate is provided corresponding to the second partition, a first air guide plate is provided between the first air supply hole plate and the filter screen, a second air guide plate is provided between the second air supply hole plate and the second partition, and a material dropping channel is formed between the second air guide plate and the second partition.

[0006] Optionally, the filter screen is a circular hole plate structure, which is less likely to cause material jamming.

[0007] Optionally, a partition shaft is fixedly connected to the air separation box, and the top ends of the first and second partitions are rotatably connected to the partition shaft. A tilt adjustment rod is provided between the first and second partitions. The partition is provided to separate the air separation box into two left and right air supply chambers. The tilt adjustment rod can be used to adjust the inclination of the partition, and the partition also acts as a windshield to change the wind direction.

[0008] Optionally, the first air supply hole plate and the second air supply hole plate are both detachably connected to a wind shield plate, and the air supply volume and the position of the air supply channel of the air supply hole plate can be changed by the wind shield plate.

[0009] Optionally, the first air guide plate and the second air guide plate are both rotatably arranged in the air separation box, so that the air guide plates can be rotated in different directions as needed.

[0010] Optionally, two air supply windows are symmetrically provided on the air separation box above the feed port, and the air supply windows are rotatably connected to an air supply adjustment plate. The air intake at the air supply windows can be changed by rotating the air supply adjustment plate.

[0011] Optionally, a waste collection box is provided below the blanking channel to collect waste.

[0012] Beneficial effects of the utility model:

[0013] 1. The utility model sets a wind shield corresponding to the first air supply hole plate, adjusts the inclination angle of the first partition, and cooperates with the first air guide plate to adjust the wind direction and air volume of the primary air separation; sets a wind shield corresponding to the second air supply hole plate, adjusts the inclination angle of the second partition, and cooperates with the second air guide plate to adjust the wind direction and air volume of the secondary air separation; and uses two-stage air separation to separate qualified shredded stems and waste.

[0014] 2. The utility model utilizes the principle of suspended wind separation, uses negative pressure airflow as the air separation power in the air separation box, and utilizes air supply holes, partitions, and air guide plates to effectively control the air flow and wind direction of the primary and secondary air separation. Compared with the existing separation device, the air separation effect is good and the air separation is highly controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a top view of the utility model;

[0017] Figure 3 yes Figure 2 Middle AA section view.

[0018] Among them, 1-air separation box, 11-feed port, 12-filter, 131-first partition, 132-second partition, 133-tilt adjustment rod, 141-first air supply hole plate, 142-second air supply hole plate, 151-first air guide plate, 152-second air guide plate, 161-air supply window, 162-air supply adjustment plate, 2-stem shredded conveying pipe, 3-waste collection box. DETAILED DESCRIPTION

[0019] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and are only schematic diagrams, not actual drawings. They should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the dimensions of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the figures.

[0020] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "up", "down", "left", "right", "front", "back", etc. indicate directions or positional relationships, they are based on the directions or positional relationships shown in the figures. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the figures are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0021] like Figure 1-Figure 3 As shown in FIG, a wind-selected shredded stem separation device of the present invention is shown. Figure 1 As shown, it includes an air separation box 1, the main cross-section of the air separation box 1 is rectangular, the top of the air separation box 1 is conical and conical, and is connected to a shredded stem conveying pipe 2, which is used to connect to a fan that provides negative pressure suction. A feed port 11 is provided on one side of the air separation box 1, and the feed port 11 is connected to a feeding device for throwing materials into the air separation box 1. The exemplary feeding device can use an existing roller structure to realize the throwing of the shredded stems to be air-selected.

[0022] like Figure 3As shown, a filter screen 12 is obliquely provided below the feed port 11 in the air separation box 1. The oblique direction takes the feed port side as the high point and tilts to the lower left to form a material receiving area. The filter screen 12 is a circular hole plate structure. A first partition 131 and a second partition 132 are provided on the inner wall of the air separation box 1 at the lowest point of the filter screen 12. The first partition 131 and the second partition 132 are provided in an inverted V shape. Specifically, a partition shaft is fixedly connected to the air separation box 1. Connecting parts are provided at the top ends of the first partition 131 and the second partition 132, and both are rotatably connected to the partition shaft using a similar loose-leaf structure, so that the first partition 131 and the second partition 132 can rotate along the partition shaft at the top end. The first partition 131 and the second partition 132 are connected to each other in an inverted V shape. An inclination adjustment rod is provided between the plates 132. For example, the structure of the inclination adjustment rod 133 can be a telescopic rod structure, one end of which is fixedly connected to the first partition 131, and the other end is in contact with the second partition 132. By adjusting and locking the length of the inclination adjustment rod 133, the inclination angle of the first partition 131 and the second partition 132 can be adjusted; a screw adjustment structure can also be used to achieve the adjustment of the inclination angle of the first partition 131 and the second partition 132. The specific structure and principle will not be repeated here.

[0023] like Figure 1 As shown, the bottom of the air separation box 1 is an inverted cone-shaped structure, which is formed by four inclined bottom plates gathered together to form a bottom opening, wherein, as shown in FIG. Figure 3 As shown, a first air supply hole plate 141 is provided at the bottom of the air separation box 1 corresponding to the first partition plate 131, and a second air supply hole plate 142 is provided corresponding to the second partition plate 132. The first air supply hole plate 141 and the second air supply hole plate 142 are obtained by opening air holes on two bottom plates on the opposite sides; corresponding wind shields can also be connected to the first air supply hole plate 141 and the second air supply hole plate 142 by threads; the air supply volume and the air supply channel position of the air supply hole plate are changed by the wind shield, and the shape and size of the wind shield can be adjusted according to specific needs.

[0024] In this embodiment, a first air guide plate 151 is provided between the first air supply hole plate 141 and the filter 12, and a second air guide plate 152 is provided between the second air supply hole plate 142 and the second partition plate 132. The first air guide plate 151 and the second air guide plate 152 are both rotatably arranged in the air separation box 1, and the wind direction of the corresponding area is adjusted by adjusting the angle direction of the air guide plate.

[0025] In this embodiment, a material drop channel is formed between the second air guide plate 152 and the second partition plate 132; a waste collection box 3 is located below the drop channel. Two symmetrical air supply windows 161 are also provided on the air separation chamber 1 above the feed inlet 11. These windows 161 are rotatably connected to an air supply adjustment plate 162. It will be appreciated that movable components such as the first partition plate 131, the second partition plate 132, the first air guide plate 151, the second air guide plate 152, and the tilt adjustment rod 133 are all equipped with conventional adjustment locking mechanisms, i.e., structures that secure the components after adjustment of the tilt angle or length, such as by threaded fastening. The specific structure and principles will not be elaborated upon.

[0026] The working principle of this utility model is as follows:

[0027] When using the separation device of the present invention to winnow the shredded stems, the fan is first started, and the shredded stem conveying pipe 2 generates negative pressure suction, so that a pressurized air flow is formed from bottom to top inside the entire winnowing box. The feeding device throws the material into the winnowing box 1, and the large flow rate wind speed above the filter 12 formed by adjusting the major air inlets and air supply ports in the winnowing box 1 is used to complete the first winnowing of the shredded stems. Most of the qualified shredded stems are screened out by the wind and enter the back-end process through the shredded stem conveying pipe 2. The stems are picked, the stems are pelleted, and the stems are separated. The fallen materials such as lumps, high-moisture-content wet stem shreds and a small amount of qualified stem shreds gather on the left side of the inclined surface of the filter 12, and complete the secondary air separation through the double "V"-shaped wind speed gradient area formed by the second air supply hole plate 142, the second air guide plate 152 and the second partition plate 132. The qualified stem shreds enter the upper area of ​​the air separation box 1 after the secondary air separation, and enter the back-end process through the stem shred conveying pipe 2. The remaining unqualified stem shreds, stem sticks, stem grains, stem blocks and wet stem shreds fall into the waste collection box 3 through the dropping channel.

[0028] During this process, the wind direction and volume of the primary air separation can be adjusted by setting a wind shield corresponding to the first air supply hole plate 141, adjusting the inclination angle of the first partition plate 131, and cooperating with the first air guide plate 151; the wind direction and volume of the secondary air separation can be adjusted by setting a wind shield corresponding to the second air supply hole plate 142, adjusting the inclination angle of the second partition plate 132, and cooperating with the second air guide plate 152; the air supply window 161 is used to supplement the air volume and balance the air pressure of the air separation box 1.

[0029] The above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and such modifications or equivalent substitutions shall be encompassed by the claims of the present invention. The techniques, shapes, and structural portions not described in detail in the present invention are well known.

Claims

1. A device for separating shredded stems by air separation, comprising an air separation box (1), a shredded stem conveying pipe (2) provided on the top of the air separation box (1), the shredded stem conveying pipe (2) being connected to a blower for providing negative pressure suction, a feed inlet (11) being provided on one side of the air separation box (1), the feed inlet (11) being connected to a feed device for throwing material into the air separation box (1), and characterized in that: A filter screen (12) is obliquely arranged below the feed port (11) in the air separation box (1), and a first partition plate (131) and a second partition plate (132) are provided on the inner wall of the air separation box (1) at the lowest point of the filter screen (12), wherein the first partition plate (131) and the second partition plate (132) are arranged in an inverted V shape; The bottom of the air separation box (1) is provided with a first air supply hole plate (141) corresponding to the first partition (131), and a second air supply hole plate (142) corresponding to the second partition (132). A first air guide plate (151) is provided between the first air supply hole plate (141) and the filter (12), and a second air guide plate (152) is provided between the second air supply hole plate (142) and the second partition (132). A material drop channel is formed between the second air guide plate (152) and the second partition (132).

2. The wind-selected shredded stem separation device according to claim 1, characterized in that: The filter screen (12) is a circular hole plate structure.

3. The wind-selected shredded stem separation device according to claim 1, characterized in that: A partition shaft is fixedly connected inside the air separation box (1), the top ends of the first partition (131) and the second partition (132) are both rotatably connected to the partition shaft, and an inclination adjustment rod (133) is provided between the first partition (131) and the second partition (132).

4. The wind-selected shredded stem separation device according to claim 1, characterized in that: The first air supply hole plate (141) and the second air supply hole plate (142) are both detachably connected to a wind shield plate.

5. The wind-selected shredded stem separation device according to claim 1, characterized in that: The first air guide plate (151) and the second air guide plate (152) are both rotatably arranged in the air separation box (1).

6. The wind-selected shredded stem separation device according to claim 1, characterized in that: Located above the feed port (11), the air separation box (1) is symmetrically provided with two air supply windows (161), and the air supply windows (161) are rotatably connected to an air supply adjustment plate (162).

7. The wind-selected shredded stem separation device according to any one of claims 1 to 6, characterized in that: A waste collection box (3) is provided below the material dropping channel.

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