Tobacco threshing line high-pressure air throwing fan and tobacco threshing line

Abstract

The utility model relates to the technical field of tobacco processing, in particular to a tobacco threshing line high-pressure air throwing fan which comprises a machine frame, a shell, a motor, an impeller and an air blowing pipe. The motor and the shell are installed on the rack, the motor is located below the shell, the shell is provided with a shaft hole, an air inlet and an air outlet, an output shaft of the motor penetrates through the shaft hole and extends to an inner cavity of the shell, the output shaft of the motor is sequentially provided with the two impellers, and the two impellers are arranged in the shell. The impeller is arranged in the shell and located in an inner cavity of the shell, an air outlet of the shell is provided with an air blowing pipe, and the air blowing pipe leads to an air separation bin of the tobacco threshing line and is used for blowing air to tobacco leaves conveyed into the air separation bin. The device can replace a high-speed belt and is installed on the outer side wall of an air separation bin, the ground area is not occupied, regular replacement is not needed, and continuous production and operation of a threshing line are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco processing, and in particular to a high-pressure air throwing fan for a tobacco leaf threshing line and a tobacco leaf threshing line. Background Art

[0002] The tobacco leaf threshing air separator is an important process in leaf threshing and redrying. The centrifugal fan separates the tobacco leaves from the stems by calculating the suspension speed of the tobacco leaves. The lighter tobacco leaves are sorted out, and the heavier tobacco leaves containing stems are sent back to the threshing machine to separate the stems and leaves (such as Figure 1 After the tobacco stems are separated, they are usually conveyed by a high-speed belt (such as Figure 1 1') to throw the tobacco leaves up so that the tobacco leaves acquire an initial velocity, and the tobacco leaves pass through the wind separation chamber (such as Figure 1 2'), light tobacco leaves (containing less stems) are blown by the wind blower (such as Figure 1 3'), the large tobacco leaves are adsorbed on the dropper (such as Figure 1 The tobacco leaves (shown as serial number 4') then fall onto the conveyor belt of the receiving mechanism (not shown in the figure) for collection, while the heavy tobacco leaves (containing more stems) fall directly from the lower part of the air separation bin and are conveyed to the next level air separation mechanism for further stem separation.

[0003] However, the high-speed belt used in the prior art occupies a large area, and the high-speed belt is easy to wear after long-term use and needs to be replaced regularly, which is very inconvenient and will delay production operations. Utility Model Content

[0004] The purpose of the utility model is to provide a high-pressure air-throwing blower for a tobacco leaf-threshing line, which can replace the high-speed belt and be installed on the outer wall of the wind distribution bin without occupying ground area and does not require regular replacement, thereby facilitating continuous production and operation of the leaf-threshing line.

[0005] Another object of the utility model is to provide a tobacco leaf threshing line which does not occupy ground area and does not require regular replacement, thereby facilitating continuous production and operation of the leaf threshing line.

[0006] The technical solution of the utility model is achieved in this way:

[0007] A high-pressure air-throwing blower for a tobacco leaf-threshing line comprises a frame, a shell, a motor, an impeller and a blast pipe;

[0008] The motor and the shell are respectively installed on the frame, and the motor is located below the shell. The shell has an axial hole, an air inlet and an air outlet. The output shaft of the motor passes through the axial hole and extends to the inner cavity of the shell. Two impellers are sequentially arranged on the output shaft of the motor, and the impellers are located in the inner cavity of the shell. The air outlet of the shell is provided with a blast pipe, which leads to the wind separation bin of the tobacco leaf beating line and is used to blow air to the tobacco leaves transported to the wind separation bin.

[0009] Furthermore, it also includes an air intake pipe, one end of which is connected to the air inlet and the other end is arranged upward.

[0010] Furthermore, it also includes a protective cover, which is arranged at the other end of the air intake pipe and is connected to the air intake pipe.

[0011] Furthermore, the impeller is made of aluminum alloy.

[0012] Furthermore, the two impellers are mounted on the output shaft of the motor through a fan hub.

[0013] Furthermore, the output shaft of the motor is arranged vertically upward, and the air intake pipe is arranged vertically.

[0014] Furthermore, the protective cover is conical.

[0015] A tobacco leaf threshing line comprises a tobacco conveying mechanism, an air distribution system and a high-pressure air throwing blower for the tobacco leaf threshing line.

[0016] Further, the air separation system includes a plurality of air separation mechanisms arranged in sequence, the air separation mechanism includes an air separation chamber, the air separation chamber has a feed inlet and a discharge port, an air separation fan is arranged in the air separation chamber, and a dropper is arranged at the discharge port;

[0017] The tobacco conveying mechanism passes through the feed port and conveys tobacco materials into the wind separation bin. The high-pressure air-throwing blower of the tobacco beating line is fixedly mounted on the outer wall of the wind separation bin and is used to blow air on the tobacco materials conveyed into the wind separation bin by the tobacco conveying mechanism.

[0018] Furthermore, a material receiving mechanism is correspondingly arranged directly below the dropper, and the material receiving mechanism includes a material receiving conveyor belt and a material receiving container. The material receiving conveyor belt can convey the tobacco leaf material dropped from the dropper to the material receiving container.

[0019] Furthermore, the tobacco conveying mechanism is arranged corresponding to the first air separation mechanism, and the tobacco conveying mechanism passes through the feed port of the first air separation mechanism.

[0020] Furthermore, at least one of the tobacco leaf beating line high-pressure air-throwing blowers is provided in each of the wind separation bins, for blowing the tobacco materials transported into the wind separation bins.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] On the original leaf threshing line, the original high-pressure belt was fixed on the ground, which not only took up ground area, but also after long-term use, the belt was easily worn and needed to be replaced for a long time, which was very inconvenient and delayed the production operation of the leaf threshing line; and the present application utilizes a newly designed high-pressure air-throwing blower to replace the high-pressure belt, to blow air on the tobacco leaves transported to the wind separation bin, and toss the tobacco leaves transported to the wind separation bin so that the tobacco leaves obtain an initial speed for tobacco stem sorting and processing. The high-pressure air-throwing blower is not fixed to the ground during installation and does not take up ground area. It can be fixed to the outer wall of the wind separation bin when in use. It does not need to be replaced regularly, which is convenient for actual use and will not delay production operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a partial structural diagram of the stroke subsystem in the prior art;

[0025] Figure 2 This is a schematic diagram of the structure of the high-pressure air-throwing blower of the utility model;

[0026] Figure 3 The utility model is a schematic diagram of the structure of a tobacco leaf beating line.

[0027] In the figure:

[0028] 1-frame; 2-wind separation bin; 201-wind separation bin bracket; 4-feeder; 5-wind separation mechanism;

[0029] 6-housing; 601-air outlet; 7-motor;

[0030] 8-intake pipe; 9-protective cover; 10-impeller. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0038] Example 1

[0039] Reference Figure 2 and Figure 3 The present embodiment provides a high-pressure air-throwing blower for a tobacco leaf-threshing line, comprising a frame 1, a shell 6, a motor 7, an impeller 10 and a blast pipe.

[0040] The motor 7 and the housing 6 are respectively mounted on the frame 1 , and the housing 6 has an axial hole, an air inlet and an air outlet 601 .

[0041] The output shaft of the motor 7 is passed through the shaft hole and extends to the inner cavity of the shell 6. Two impellers 10 are arranged in sequence on the output shaft of the motor 7. The two impellers 10 are arranged in sequence along the axial direction of the output shaft of the motor 7, and the impellers 10 are located in the inner cavity of the shell 6. The inner cavity of the shell 6 forms a blast chamber. When the motor 7 drives the impeller 10 to rotate, air flow is generated, and the atmosphere is drawn in from the air inlet and exhausted through the air outlet 601 to blow air.

[0042] In order to direct the air outlet 601 to any desired position, a blast pipe is provided at the air outlet 601 of the shell 6, one end of the blast pipe is connected to the air outlet 601, and the other end of the blast pipe leads to the wind separation bin 2 of the tobacco leaf beating line. When the tobacco conveying mechanism conveys the tobacco leaves into the wind separation bin 2, the high-pressure air-throwing blower can be used to blow air on the tobacco leaves conveyed into the wind separation bin 2, thereby playing a role of blowing air to make the tobacco leaves float and obtain an initial speed. The light tobacco leaves are lifted up by the blowing force, while the heavy tobacco stems are not lifted up, thereby playing a role of preliminary separation.

[0043] In an optional manner of this embodiment, only two impellers 10 are provided, and the two impellers 10 are installed on the output shaft of the motor 7 through the fan hub, and the impeller 10 is made of aluminum alloy, that is, an aluminum alloy impeller. The fan hub is also called a shaft disk, which is installed at the connection between the output shaft of the motor 7 and the impeller 10. Compared with other welded carbon steel impellers, the aluminum alloy impeller has high strength and light weight, which reduces the rotational inertia of the motor 7 when starting.

[0044] Preferably, the description is expanded based on the orientation of the high-pressure air-throwing blower during actual installation: the motor 7 is located below the shell 6, the output shaft of the motor 7 is arranged vertically upward (the main body of the motor 7 is at the bottom and the output shaft is at the top), the output shaft of the motor 7 passes upward through the axial hole of the shell 6 (the axial hole of the shell 6 is located at the center of the bottom of the shell 6), an air inlet is arranged at the center of the top of the shell 6, and an air outlet 601 is arranged on the side of the shell 6.

[0045] An air intake pipe 8 is also provided, one end of which is connected to the air inlet and the other end of which is arranged upward. The air inlet of the air intake pipe 8 is arranged upward to absorb air from a higher place.

[0046] A protective cover 9 is also provided, and the protective cover 9 is provided at the other end of the air intake pipe 8 , and the protective cover 9 is connected to the air intake pipe 8 .

[0047] In an optional manner of this embodiment, the air inlet pipe 8 is vertically arranged, the air inlet of the air inlet pipe 8 is vertically upward, and the protective cover 9 is conical to prevent foreign matter from falling into the inlet and damaging the impeller 10.

[0048] The high-pressure air-throwing fan provided in this application can generate a relatively large pressure at a small flow rate, which is higher than that of other high-pressure fans at the same flow rate. This fan is suitable for the air-throwing production line of tobacco leaf threshing line. The performance parameters of this fan (flow rate, total pressure, specific speed, total pressure coefficient) are different from any model of fan in the prior art. Specifically, the performance parameters of this fan are:

[0049] Flow rate: 2297-3423m 3 / h, total pressure: 11980-10675Pa, speed 2900 rpm, motor 7 power 22Kw, specific speed 15, total pressure coefficient 1.

[0050] Example 2

[0051] In this embodiment, the number of the impellers 10 is set to be more than two, such as three, four, etc., and all the impellers 10 are sequentially mounted on the output shaft of the motor 7 through the fan hub.

[0052] Example 3

[0053] The present embodiment provides a tobacco leaf-threshing line, comprising a tobacco conveying mechanism, an air distribution system and the tobacco leaf-threshing line high-pressure air-throwing blower.

[0054] Among them, the tobacco conveying mechanism and the air separation system are the original structures in the prior art. In the prior art, the tobacco conveying mechanism adopts a tobacco conveying belt, which is used to convey the tobacco material to the high-pressure belt, and then conveyed to the air separation bin 2 by the high-pressure belt, and an initial speed is provided for the tobacco leaves. The air separation system includes a plurality of air separation mechanisms 5 arranged in sequence to realize multi-stage air separation operation, and the air separation mechanism 5 includes an air separation bin 2, and the air separation bin 2 has a feeding port and a discharging port. The air separation bin 2 is provided with an air separation fan, and a dropper 4 is provided at the discharging port. A material receiving mechanism is also correspondingly arranged directly below the dropper 4, and the material receiving mechanism includes a material receiving conveyor belt and a material receiving container, and the material receiving conveyor belt can convey the tobacco leaf material dropped from the dropper 4 to the material receiving container. The material receiving container can be a material receiving bag or a material receiving box.

[0055] In the present application, the high-pressure belt is replaced by a high-pressure air-throwing blower, which is directly installed on the outer wall of the air separation chamber 2 and located at a high place, or the high-pressure air-throwing blower is set on the side of the air separation chamber 2 and installed on the air separation chamber bracket 201 (the air separation chamber bracket 201 is a bracket supporting the air separation chamber 2, and the air separation chamber bracket 201 is a part of the air separation chamber as a whole, that is, the air separation chamber bracket 201 belongs to the original structure of the air separation chamber as a whole in the prior art). Both of these installation methods of the high-pressure air-throwing blower are to separate the high-pressure belt fixed to the ground in the prior art from the ground, so that it is not fixed to the ground and does not occupy the ground area. In this embodiment, it is preferred to use the installation method of installing the high-pressure air-throwing blower on the air separation chamber bracket 201, such as Figure 3 The tobacco conveyor belt directly passes through the feed port of the air separation bin 2 to directly convey the tobacco material into the air separation bin 2, and the blast pipe of the high-pressure air blower is correspondingly arranged at the end of the tobacco conveyor belt to blow air to the tobacco material conveyed by the tobacco conveyor belt into the air separation bin 2.

[0056] Among them, the tobacco conveying mechanism is arranged corresponding to the first air separation mechanism 5, and the tobacco conveying mechanism passes through the feed port of the first air separation mechanism 5, and the tobacco conveying mechanism directly conveys the tobacco material into the first air separation bin 2 (that is, the first-level air separation mechanism 5).

[0057] As an optional method of the present embodiment, at least one high-pressure air-throwing blower of the tobacco leaf-beating line is provided in each of the air separation bins 2, for blowing the tobacco material conveyed into the air separation bins 2, and the high-pressure air-throwing blowers are installed on the outer wall of the air separation bins 2 without occupying the ground area.

[0058] The beneficial effects of the technical solution of the utility model are:

[0059] On the original leaf threshing line, the original high-pressure belt was fixed on the ground, which not only occupies ground area, but also is easy to wear out after long-term use. It is very inconvenient to replace it for a long time, and it delays the production and operation of the leaf threshing line; the present application utilizes a newly designed high-pressure air-throwing blower to replace the high-pressure belt, blows the tobacco leaves transported to the wind separation bin 2, and throws the tobacco leaves transported to the wind separation bin 2 up, so that the tobacco leaves obtain an initial speed for tobacco stem sorting and processing. The high-pressure air-throwing blower is not fixed to the ground during installation and does not occupy ground area. It can be fixed to the outer wall of the wind separation bin 2 when in use. It does not need to be replaced regularly, which is convenient for actual use and will not delay production operations.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

[0061] In addition, those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the above claims, any one of the claimed embodiments may be used in any combination. The information disclosed in this background technology section is intended only to deepen the understanding of the overall background technology of the present invention and should not be regarded as an admission or in any form of implication that the information constitutes prior art known to those skilled in the art.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0063] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-pressure air throwing blower for tobacco leaf threshing line, characterized in that: It comprises a frame (1), a housing (6), a motor (7), an impeller (10) and a blast pipe; The motor (7) and the shell (6) are respectively mounted on the frame (1), the motor (7) is located below the shell (6), the shell (6) has an axial hole, an air inlet and an air outlet (601), the output shaft of the motor (7) is passed through the axial hole and extends to the inner cavity of the shell (6), two impellers (10) are arranged in sequence on the output shaft of the motor (7), and the impellers (10) are located in the inner cavity of the shell (6), and the air outlet (601) of the shell (6) is provided with a blast pipe, the blast pipe leads to the air separation chamber (2) of the tobacco leaf beating line, and is used to blow air to the tobacco leaves transported to the air separation chamber (2).

2. The high pressure air throwing blower for tobacco leaf threshing line according to claim 1 is characterized in that: It also includes an air intake pipe (8), one end of which is connected to the air inlet and the other end of which is arranged upward.

3. The high pressure air throwing blower for tobacco leaf threshing line according to claim 2 is characterized in that: It also comprises a protective cover (9), which is arranged at the other end of the air intake pipe (8), and the protective cover (9) is connected to the air intake pipe (8).

4. The high pressure air throwing blower for tobacco leaf threshing line according to claim 1, characterized in that: The impeller (10) is an aluminum alloy impeller (10).

5. The high pressure air throwing blower for tobacco leaf threshing line according to claim 1, characterized in that: The two impellers (10) are mounted on the output shaft of the motor (7) via a fan hub.

6. A tobacco leaf threshing line, characterized in that: It comprises a tobacco conveying mechanism, an air distribution system and a high-pressure air throwing blower for a tobacco leaf beating line as described in any one of claims 1-5.

7. The tobacco beating line according to claim 6, characterized in that: The air separation system comprises a plurality of air separation mechanisms (5) arranged in sequence, wherein the air separation mechanism (5) comprises an air separation chamber (2), wherein the air separation chamber (2) has a feed inlet and a discharge inlet, wherein an air separation fan is arranged in the air separation chamber (2), and a dropper (4) is arranged at the discharge inlet; The tobacco conveying mechanism passes through the feed port and conveys tobacco materials into the wind separation bin (2); the tobacco leaf beating line high-pressure air throwing blower is fixedly mounted on the outer wall of the wind separation bin (2) and is used to blow air on the tobacco materials conveyed into the wind separation bin (2) by the tobacco conveying mechanism.

8. The tobacco beating line according to claim 7, characterized in that: A material receiving mechanism is also provided directly below the dropper (4), and the material receiving mechanism comprises a material receiving conveyor belt and a material receiving container. The material receiving conveyor belt can convey the tobacco leaf material dropped from the dropper (4) to the material receiving container.

9. The tobacco beating line according to claim 7, characterized in that: The tobacco conveying mechanism is arranged corresponding to the first air separation mechanism (5), and the tobacco conveying mechanism passes through the feed port of the first air separation mechanism (5).

10. The tobacco beating line according to claim 7, characterized in that: At least one of the tobacco leaf beating line high-pressure air-throwing blowers is arranged in each of the wind separation chambers (2) for blowing air on the tobacco material transported to the wind separation chambers (2).

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