Tobacco shred stem winnowing machine

Abstract

The utility model discloses a tobacco stem winnowing machine, and belongs to the field of tobacco processing. The cut tobacco stem winnowing machine comprises a winnowing machine, a winnowing air supply device, a caked cut tobacco loosening device, a cut tobacco output mechanism, a stem discharging device and the like. According to the tobacco stem winnowing machine, more than two layers of air separation can be carried out in one sorting box, stems in tobacco shreds can be finely separated, and therefore the content of the stems in the tobacco shreds is reduced. Due to the fact that only one winnowing box is used for processing, the loss of water in the tobacco shreds is relatively small, and the generated tobacco shred breakage is small. The tobacco stem winnowing machine is specially designed and manufactured for separating stems in tobacco shreds, and is simple and reliable in structure, convenient to operate and use and good in winnowing effect.

Description

Technical Field

[0001] This utility model relates to a tobacco processing device, belonging to the field of tobacco processing, specifically a device for separating the stems from tobacco shreds. Background Technology

[0002] During the processing of tobacco leaves into shredded tobacco, some stems and stalks are inevitably mixed in, and the amount of these stems and stalks directly affects the quality of the tobacco product. In recent years, the popular slim cigarettes have placed even higher demands on the quality of their tobacco. During the production of slim cigarettes, the presence of many stems and stalks in the tobacco leads to a large number of punctured cigarettes, empty ends, and other defective or waste products. Therefore, improving the quality and purity of the tobacco used in slim cigarettes is an effective way to solve the current problems of high defect and waste rates, and separating the stems and stalks from the tobacco is a crucial step in this process.

[0003] Currently, there is no dedicated equipment for separating stems from tobacco shreds. More advanced tobacco impurity removal equipment uses a two-stage air separation process to remove impurities, which also removes some stems. While this method can separate some stems to a certain extent, some stems in clumps of tobacco, as well as lighter and shorter stems, cannot be separated due to their light weight. More importantly, because the tobacco undergoes repeated air separations, its moisture content decreases significantly, resulting in substantial tobacco loss.

[0004] In addition, there are currently some methods for processing clumps of tobacco and separating stems. For example, using a vibrating conveyor, sorting and breaking up the tobacco, or roller shearing, or multiple screenings with a vibrating screen, the length of the tobacco in slim cigarettes can be controlled and stems removed. While this method can remove stems from the tobacco, it requires a lot of machinery, and the material is prone to breakage as it passes through this equipment, increasing production costs.

[0005] To address the above problems, this utility model is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a tobacco stem and stalk air separator, which can effectively solve the problems existing in the current tobacco stem removal process. This invention's tobacco stem and stalk air separator includes an air separator, an air separation and supply device, a clump-forming tobacco loosening device, a tobacco output mechanism, and a stem and stalk exhaust device. This invention utilizes aerodynamic principles and controls the airflow and velocity differences between the two air separation zones within the air separator to perform two separate air separations on the tobacco fed into the separator, effectively separating the stems and stalks mixed in, thus reducing the stem and stalk content in the tobacco and improving the automation level and efficiency of tobacco processing. This equipment, through precise distribution and control of airflow, achieves effective separation of tobacco and stalks of different sizes and densities, improving the quality of tobacco products.

[0007] The first aspect of this utility model provides a tobacco stem and stalk air separator, which includes an air separator body 1, an air separator air supply device 2, a clump-forming tobacco loosening device 3, a tobacco output mechanism 4, a stem and stalk discharge device 5, and a material input device 6.

[0008] The material input device 6 is connected to the air separator body 1 to convey the mixture of tobacco shreds and stems to be air-separated into the air separator body 1;

[0009] The air separation air supply device 2 is connected to the air separator body 1 to provide positive pressure air into the air separator body 1;

[0010] The agglomerated tobacco loosening device 3 is located inside the air separator body 1;

[0011] The tobacco output mechanism 4 is connected to the air separator body 1 to output the tobacco obtained after air separation in the air separator body 1.

[0012] The stem discharge device 5 is connected to the air separator body 1 to output the stems obtained after air separation in the air separator body 1.

[0013] The stem discharge device 5 is located below the agglomerated tobacco loosening device 3, and the air separation and air supply device 2 is located below the material input device 6.

[0014] In this invention, "up" and "down" refer to the directions of gravity.

[0015] Preferably, the air separator body 1 includes a feed inlet 1-1, an upper air inlet 1-2, a lower air inlet 1-3, a tobacco shred outlet 1-4, a stem and stick outlet 1-5, an observation window 1-6, and an air outlet 1-7.

[0016] The tobacco shred outlet 1-4 and the stem outlet 1-5 are located at the bottom of the air separator body 1, and the air outlet 1-7 is located at the top of the air separator body 1;

[0017] The upper air inlet 1-2 is located below the feed inlet 1-1, and the upper air inlet 1-2 is located above the agglomerated tobacco loosening device 3;

[0018] The lower air inlet 1-3 is located below the agglomerated tobacco loosening device 3, and the lower air inlet 1-3 is located above the stem outlet 1-5;

[0019] The observation windows 1-6 are located on both sides of the air separator body 1.

[0020] The main body of the air separator has two air inlets, one above the other, located below the tobacco feed inlet.

[0021] Preferably, the air separation and air supply device 2 includes an air separation fan 2-1, an air volume distribution valve 2-2, an upper air duct 2-3, a lower air duct 2-4, a pressure regulating fan 2-5, a return air duct 2-6, and a filter cylinder 2-7;

[0022] The upper air duct 2-3 is connected to the upper air inlet 1-2;

[0023] The downdraft duct 2-4 is connected to the downdraft inlet 1-3;

[0024] The air volume distribution valve 2-2 is provided at the bifurcation point of the upper air duct 2-3 and the lower air duct 2-4;

[0025] The air separator fan 2-1 is connected to the upper air duct 2-3 and the lower air duct 2-4 respectively to provide positive pressure air;

[0026] The pressure regulating fan 2-5 is located on top of the air separator body 1;

[0027] The filter cylinder 2-7 is located at the air outlet 1-7 at the top of the air separator body 1, and the two ends of the return air pipe 2-6 are connected to the air outlet 1-7 and the air separator fan 2-1 respectively. The positive pressure air in the air separator body 1 is filtered by the filter cylinder 2-7 and then returned to the air separator fan 2-1 through the return air pipe 2-6.

[0028] Preferably, the agglomerated tobacco loosening device 3 includes a screen roller assembly 3-3;

[0029] The screen roller assembly 3-3 includes multiple screen rollers 3-2, and each screen roller 3-2 includes multiple screen plates 3-1; there are gaps between adjacent screen plates 3-1. The device for loosening clumped tobacco shreds is designed using the structure of a roller screen.

[0030] Preferably, the tobacco output mechanism 4 includes a tobacco collecting belt 4-1 and a tobacco output air lock 4-2, wherein the tobacco collecting belt 4-1 is located at the bottom of the air separator body 1.

[0031] Preferably, the main body of the stem discharge device 5 is a funnel-shaped discharge port, which is wider at the top and narrower at the bottom. The stem discharge device 5 has a supplementary air window 5-4 on its side. A movable air regulating door 5-2 that can be adjusted up and down is installed on the air regulating door 5-4. A locking handle 5-3 that can lock the air regulating door 5-2 is also provided on the air regulating door 5-2.

[0032] Preferably, the material input device 6 includes a material conveyor belt 6-1, and the material conveyed by the material conveyor belt 6-1 enters the air separator body 1 through the feed inlet 1-1.

[0033] Preferably, the wind speed of the air blown out by the upper air duct 2-3 is 2-5 m / s;

[0034] The wind speed blowing out of the downwind duct 2-4 is 3-6 m / s;

[0035] The wind speed blowing out of the air supply window 5-4 is 3.5 to 7 m / s;

[0036] The gap between adjacent roller screen plates 3-1 is 5-10 mm.

[0037] The second aspect of this utility model provides a method for air separation of tobacco shreds and stems, using the tobacco shred and stem air separation machine described in the first aspect of this utility model. The method includes: a material input device 6 feeding a mixture of tobacco shreds and stems to be air-separated into the air separation machine body 1; an air separation air supply device 2 providing positive pressure air into the air separation machine body 1 to separate a first portion of the tobacco shreds from the mixture; the remaining portion of the tobacco shred and stem mixture being loosened by the agglomerated tobacco shred loosening device 3, and then, under the action of positive pressure air, separating the remaining portion of the tobacco shreds from the mixture; the resulting tobacco shreds after air separation being output from the air separation machine body 1; and the resulting stems after air separation being output from the air separation machine body 1, thereby achieving the separation of tobacco shreds and stems.

[0038] Preferably, the stem exhaust device 5 also provides supplementary air to further separate the tobacco shreds mixed in the stem.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] 1. The main body of this utility model's air separator has two air inlets, one above the other, located below the tobacco shred inlet. This tobacco shred and stem air separator can separate the stems from the tobacco shreds more precisely through two or more layers of air separation within a single sorting box, thereby reducing the stem content. Because the process only involves one air separation box, the moisture loss from the tobacco shreds is relatively small, resulting in less tobacco breakage.

[0041] 2. The clump-forming tobacco loosening device 3 of this utility model includes a screen roller assembly 3-3; the screen roller assembly 3-3 includes multiple screen rollers 3-2, and each screen roller 3-2 includes multiple screen plates 3-1. The clump-forming tobacco material rolls forward on the clump-forming tobacco loosening device 3 as the screen roller assembly 3-3 rotates. The stems and loosened tobacco fall evenly from the gaps in the screen roller assembly 3-3. The remaining clump-forming tobacco is also gradually loosened by the screen plates 3-1 on the rotating screen rollers 3-2, and falls evenly from the gaps in the screen roller assembly 3-3, thus loosening the clump-forming tobacco and stems and providing a basis for their separation.

[0042] 3. The main body of the stem removal device 5 is a funnel-shaped discharge port, wider at the top and narrower at the bottom. The side of the stem removal device 5 has a supplementary air window 5-4. Based on the two-stage air separation within the main body of the air separator, the stem removal device 5 performs a third-stage air separation through supplementary air, further separating the tobacco shreds mixed in with the stems. This invention effectively removes stems from tobacco shreds, improving the quality of the tobacco.

[0043] 4. This tobacco stem and stalk air separator is specifically designed and manufactured for separating the stems and stalks from tobacco. Its equipment has a simple and reliable structure, is easy to operate and use, and has a good air separation effect.

[0044] 5. The tobacco stem and shred air separator of this utility model occupies less space, consumes less energy, and is simple, reliable, and easy to operate and maintain. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the structure of the tobacco stem and shred air separator of this utility model;

[0046] Figure 2 This is a schematic diagram of the main body of the air separator in the tobacco stem and shred skewer air separator of this utility model;

[0047] Figure 3 This is a schematic diagram of the air separation and air supply device in the tobacco stem and shred skewer air separator of this utility model;

[0048] Figure 4 This is a schematic diagram of the agglomerated tobacco loosening device in the tobacco stem and shred skewer air separator of this utility model (wherein, the upper left figure is the front view of the agglomerated tobacco loosening device, the upper right figure is the left view of the agglomerated tobacco loosening device, and the lower left figure is the top view of the agglomerated tobacco loosening device).

[0049] Figure 5 This is a schematic diagram of the tobacco output mechanism in the tobacco stem and shred skewer air separator of this utility model;

[0050] Figure 6 This is a schematic diagram of the stem and stalk exhaust device in the tobacco stem and stalk air separator of this utility model.

[0051] The names of the reference numerals in the accompanying drawings are as follows: 1. Main body of the air separator; 2. Air separator air supply device; 3. Clumped tobacco loosening device; 4. Tobacco output mechanism; 5. Stem and stick discharge device; 6. Material input device.

[0052] Feed inlet 1-1, upper air inlet 1-2, lower air inlet 1-3, tobacco shred outlet 1-4, stem outlet 1-5, observation window 1-6, air outlet 1-7;

[0053] Air classifier 2-1, air volume distribution valve 2-2, upper air duct 2-3, lower air duct 2-4, pressure regulating fan 2-5, return air duct 2-6, filter screen cylinder 2-7;

[0054] Roller screen plate 3-1, screen roller 3-2, screen roller assembly 3-3;

[0055] 4-1 Tobacco collection belt; 4-2 Tobacco output air lock;

[0056] 5-1, air damper 5-2, locking handle 5-3, air supply window 5-4;

[0057] Material conveyor belt 6-1. Detailed Implementation

[0058] The present invention will be further described in detail below with reference to the embodiments.

[0059] Those skilled in the art will understand that the following embodiments are for illustrative purposes only and should not be construed as limiting the scope of the present invention. Where specific techniques or conditions are not specified in the embodiments, they are performed in accordance with the techniques or conditions described in the literature in the field or according to the product instructions. Materials or equipment whose manufacturers are not specified are all conventional products that can be obtained by purchase.

[0060] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the word “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” to another element, it can be directly connected to the other element, or there may be an intermediate element. Furthermore, the term “connected” as used herein can include wireless connections.

[0061] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. The terms "inner", "upper", "lower", etc., indicate the orientation or state relationship based on the orientation or state relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0062] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0063] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein.

[0064] Example

[0065] like Figure 1 As shown, the tobacco stem and skewer air separator in this embodiment includes an air separator body 1, an air separator air supply device 2, a clump-forming tobacco loosening device 3, a tobacco output mechanism 4, a stem and skewer external discharge device 5, and a material input device 6.

[0066] The material input device 6 is connected to the air separator body 1 to convey the mixture of tobacco shreds and stems to be air-separated into the air separator body 1;

[0067] The air separation air supply device 2 is connected to the air separator body 1 to provide positive pressure air into the air separator body 1;

[0068] The agglomerated tobacco loosening device 3 is located inside the air separator body 1;

[0069] The tobacco output mechanism 4 is connected to the air separator body 1 to output the tobacco obtained after air separation in the air separator body 1.

[0070] The stem discharge device 5 is connected to the air separator body 1 to output the stems obtained after air separation in the air separator body 1.

[0071] The stem discharge device 5 is located below the agglomerated tobacco loosening device 3, and the air separation and air supply device 2 is located below the material input device 6.

[0072] like Figure 2 As shown, the main body 1 of the air separator includes a feed inlet 1-1, an upper air inlet 1-2, a lower air inlet 1-3, a tobacco shred outlet 1-4, a stem and stick outlet 1-5, an observation window 1-6, and an air outlet 1-7.

[0073] The tobacco shred outlet 1-4 and the stem outlet 1-5 are located at the bottom of the air separator body 1, and the air outlet 1-7 is located at the top of the air separator body 1;

[0074] The upper air inlet 1-2 is located below the feed inlet 1-1, and the upper air inlet 1-2 is located above the agglomerated tobacco loosening device 3;

[0075] The lower air inlet 1-3 is located below the agglomerated tobacco loosening device 3, and the lower air inlet 1-3 is located above the stem outlet 1-5;

[0076] The observation windows 1-6 are located on both sides of the air separator body 1.

[0077] The main body of the air separator has two air inlets, one above the other, located below the tobacco feed inlet.

[0078] like Figure 3 As shown, the air separation and air supply device 2 includes an air separation fan 2-1, an air volume distribution valve 2-2, an upper air duct 2-3, a lower air duct 2-4, a pressure regulating fan 2-5, a return air duct 2-6, and a filter cylinder 2-7;

[0079] The upper air duct 2-3 is connected to the upper air inlet 1-2;

[0080] The downdraft duct 2-4 is connected to the downdraft inlet 1-3;

[0081] The air volume distribution valve 2-2 is provided at the bifurcation point of the upper air duct 2-3 and the lower air duct 2-4;

[0082] The air separator fan 2-1 is connected to the upper air duct 2-3 and the lower air duct 2-4 respectively to provide positive pressure air;

[0083] The pressure regulating fan 2-5 is located on top of the air separator body 1;

[0084] The filter cylinder 2-7 is located at the air outlet 1-7 at the top of the air separator body 1, and the two ends of the return air pipe 2-6 are connected to the air outlet 1-7 and the air separator fan 2-1 respectively. The positive pressure air in the air separator body 1 is filtered by the filter cylinder 2-7 and then returned to the air separator fan 2-1 through the return air pipe 2-6.

[0085] like Figure 4 As shown, the agglomerated tobacco loosening device 3 includes a screen roller assembly 3-3;

[0086] The screen roller assembly 3-3 includes multiple screen rollers 3-2, and each screen roller 3-2 includes multiple screen plates 3-1; there are gaps between adjacent screen plates 3-1. The device for loosening clumped tobacco shreds is designed using the structure of a roller screen.

[0087] like Figure 5 As shown, the tobacco output mechanism 4 includes a tobacco collecting belt 4-1 and a tobacco output air lock 4-2. The tobacco collecting belt 4-1 is located at the bottom of the air separator body 1.

[0088] like Figure 6As shown, the main body of the stem discharge device 5 is a funnel-shaped discharge port, which is wider at the top and narrower at the bottom. The stem discharge device 5 has a make-up air window 5-4 on its side. A movable air regulating door 5-2 that can be adjusted up and down is installed on the make-up air window 5-4. A locking handle 5-3 that can lock the air regulating door 5-2 is also provided on the air regulating door 5-2.

[0089] The material input device 6 includes a material conveyor belt 6-1, through which the material conveyor belt 6-1 enters the air separator body 1 via the feed inlet 1-1.

[0090] The wind speed blowing out of the upper wind duct 2-3 is 2-5 m / s;

[0091] The wind speed blowing out of the downwind duct 2-4 is 3-6 m / s;

[0092] The wind speed blowing out of the air supply window 5-4 is 3.5 to 7 m / s;

[0093] The gap between adjacent roller screen plates 3-1 is 5-10 mm.

[0094] The method for air separation of tobacco shreds and stems in this embodiment of the tobacco shred and stems air separator includes: the material input device 6 feeding a mixture of tobacco shreds and stems to be air separated into the air separator body 1; the air separation air supply device 2 providing positive pressure air into the air separator body 1, thereby separating the first part of the tobacco shreds in the mixture of tobacco shreds and stems; after the remaining part of the mixture of tobacco shreds and stems is loosened by the agglomerated tobacco shred loosening device 3, the tobacco shreds in the remaining part of the mixture of tobacco shreds and stems are separated under the action of positive pressure air; the tobacco shreds obtained after air separation are output from the air separator body 1; the stems obtained after air separation are output from the air separator body 1; thereby realizing the separation of tobacco shreds and stems.

[0095] The stem exhaust device 5 also provides supplementary air to further separate the tobacco mixed in the stem.

[0096] Specifically, the process of wind sorting tobacco shreds and stems is as follows:

[0097] 1. The tobacco shreds to be processed are conveyed into the tobacco stem and shred air separator at a certain speed by the auxiliary material equalization belt conveyor after material equalization.

[0098] 2. After the tobacco shreds to be processed enter the tobacco stem and stalk air separator, the air blown out by the upper air duct 2-3 will continuously disperse the tobacco shreds. Under the wind speed of 2-5m / s, more than half of the lighter tobacco shreds will be blown to a farther place in the air separator box and fall onto the tobacco shred collection belt 4-1. The tobacco shred collection belt 4-1 will then send the tobacco shreds to the tobacco output air lock 4-2, and then discharge them out through the tobacco output air lock 4-2 to enter the next process.

[0099] The air blown out of the upper air duct 2-3 can be adjusted by the frequency conversion speed regulation of the air separator fan 2-1 and by the air volume distribution valve 2-2, so as to achieve precise control of the air separation speed and obtain the ideal air separation effect.

[0100] 3. The remaining tobacco shreds containing stems and some clumps of tobacco that have not been blown apart fall downwards near the upper air inlet 1-2 onto the clump loosening device 3. These tobacco shreds roll forward on the clump loosening device 3 as its screen roller assembly 3-3 rotates. The stems and loosened tobacco shreds fall evenly through the gaps in the screen roller assembly 3-3. The remaining clumps of tobacco shreds are also gradually loosened by the roller screen plates 3-1 on the rotating screen roller 3-2 and fall evenly through the gaps in the screen roller assembly 3-3.

[0101] The gap between the screen roller assembly 3-3 of the clump-forming tobacco loosening device 3, i.e. the gap between the screen rollers 3-1, has been determined to be between 5 and 10 mm after continuous testing. The best loosening effect can be achieved by adjusting the speed of the screen roller 3-2 by frequency conversion.

[0102] 4. After being loosened by the agglomerated tobacco loosening device 3, the tobacco shreds and stems that fall evenly from below are further dispersed by the wind blown out by the downdraft duct 2-4. Under the wind speed of 3-6 m / s, about 70% or more of the lighter tobacco shreds are blown to a greater distance in the air classifier box and fall onto the tobacco shred collection belt 4-1, where they merge with the tobacco shreds on the belt. The belt then sends the tobacco shreds to the tobacco output air lock 4-2, from where they are discharged to the next process.

[0103] The air blown out of the downdraft duct 2-4 can be adjusted by the frequency conversion speed regulation of the air separator fan 2-1 and by the air volume distribution valve 2-2, so as to achieve precise control of the air separation speed and obtain the ideal air separation effect.

[0104] 5. After secondary air separation by the airflow from downdraft duct 2-4, the tobacco shreds and stems that are not blown away by downdraft duct 2-4 and continue to fall enter the stem exhaust device 5. Since the stem exhaust device 5 is funnel-shaped (wider at the top, narrower at the bottom) and has an upward airflow at its outlet (smaller end) with a velocity of 3.5–7 m / s, the remaining small amount of tobacco shreds and stems entering the stem exhaust device 5 undergoes a final air separation. By adjusting the exhaust airflow of the pressure regulating fan 2-5 and the air damper 5-2 on the stem exhaust device 5, the upward airflow velocity can be precisely controlled, thus separating the remaining small amount of tobacco shreds and stems. The tobacco shreds are carried by the upward airflow onto the tobacco collection belt 4-1, while the stems fall and are discharged from the outlet of the stem exhaust device 5.

[0105] 6. The air blown from the upper air duct 2-3 and the lower air duct 2-4 disperses the tobacco shreds to a greater distance, where they fall onto the tobacco collection belt 4-1. The air then flows upward through the filter cylinder 2-7 and the return air duct 2-6 back to the air separator 2-1 for reuse. The filter cylinder 2-7 can catch a small amount of tiny tobacco fragments that are carried by the wind, which are then swept down by the cleaning roller and fall back onto the tobacco collection belt 4-1.

Claims

1. A tobacco stem and shred separation machine, characterized in that, It includes the main body of the air separator (1), the air separator air supply device (2), the agglomerated tobacco loosening device (3), the tobacco output mechanism (4), the stem and stick discharge device (5), and the material input device (6); The material input device (6) is connected to the air separator body (1) to convey the mixture of tobacco shreds and stems to be air-separated into the air separator body (1); The air separation air supply device (2) is connected to the air separator body (1) to provide positive pressure air into the air separator body (1); The agglomerated tobacco loosening device (3) is located inside the air separator body (1); The tobacco output mechanism (4) is connected to the air separator body (1) to output the tobacco obtained after air separation in the air separator body (1); The stem discharge device (5) is connected to the air separator body (1) to output the stems obtained after air separation in the air separator body (1); The stem discharge device (5) is located below the clump-forming tobacco loosening device (3), and the air separation and air supply device (2) is located below the material input device (6).

2. The tobacco stem and shred separation machine according to claim 1, characterized in that, The main body (1) of the air separator includes a feed inlet (1-1), an upper air inlet (1-2), a lower air inlet (1-3), a tobacco shred outlet (1-4), a stem skewer outlet (1-5), an observation window (1-6), and an air outlet (1-7); The tobacco outlet (1-4) and the stem outlet (1-5) are located at the bottom of the air separator body (1), and the air outlet (1-7) is located at the top of the air separator body (1); The upper air inlet (1-2) is located below the feed inlet (1-1), and the upper air inlet (1-2) is located above the agglomerated tobacco loosening device (3); The lower air inlet (1-3) is located below the agglomerated tobacco loosening device (3), and the lower air inlet (1-3) is located above the stem outlet (1-5); The observation windows (1-6) are located on both sides of the air separator body (1).

3. The tobacco stem and shred separation machine according to claim 2, characterized in that, The air separation and air supply device (2) includes an air separation fan (2-1), an air volume distribution valve (2-2), an upper air duct (2-3), a lower air duct (2-4), a pressure regulating fan (2-5), a return air duct (2-6), and a filter screen (2-7); The upper air duct (2-3) is connected to the upper air inlet (1-2); The downdraft duct (2-4) is connected to the downdraft air inlet (1-3); The air volume distribution valve (2-2) is provided at the bifurcation point of the upper air duct (2-3) and the lower air duct (2-4); The air separator (2-1) is connected to the upper air duct (2-3) and the lower air duct (2-4) respectively to provide positive pressure air; The pressure regulating fan (2-5) is located on top of the air separator body (1); The filter cylinder (2-7) is located at the air outlet (1-7) at the top of the air separator body (1), and the two ends of the return air pipe (2-6) are connected to the air outlet (1-7) and the air separator fan (2-1) respectively. The positive pressure air in the air separator body (1) is filtered by the filter cylinder (2-7) and then flows back to the air separator fan (2-1) through the return air pipe (2-6).

4. The tobacco stem and shred separation machine according to claim 3, characterized in that, The agglomerated tobacco loosening device (3) includes a screen roller assembly (3-3); The screen roller assembly (3-3) includes multiple screen rollers (3-2), and each screen roller (3-2) includes multiple screen plates (3-1); there are gaps between adjacent screen plates (3-1).

5. The tobacco stem and shred separation machine according to claim 4, characterized in that, The tobacco output mechanism (4) includes a tobacco collection belt (4-1) and a tobacco output air lock (4-2), with the tobacco collection belt (4-1) located at the bottom of the air separator body (1).

6. The tobacco stem and shred separation machine according to claim 5, characterized in that, The main body of the stem discharge device (5) is a funnel-shaped discharge port, which is wider at the top and narrower at the bottom. The stem discharge device 5 has a make-up air window (5-4) on its side. A movable air regulating door (5-2) that can be adjusted up and down is installed on the make-up air window (5-4). A locking handle (5-3) that can lock the air regulating door (5-2) is also provided on the air regulating door (5-2).

7. The tobacco stem and shred separation machine according to claim 6, characterized in that, The material input device (6) includes a material conveyor belt (6-1), and the material conveyed by the material conveyor belt (6-1) enters the air separator body (1) through the feed port (1-1).

8. The tobacco stem and shred separation machine according to claim 7, characterized in that, The wind speed blowing out of the upwind duct (2-3) is 2-5 m / s; The wind speed blowing out of the downwind duct (2-4) is 3-6 m / s; The wind speed blowing out of the air supply window (5-4) is 3.5 to 7 m / s; The gap between adjacent roller screen plates (3-1) is 5-10 mm.

Images