Tobacco shred vertical winnowing device and winnowing method for tobacco shred

Abstract

The invention belongs to the technical field of tobacco processing equipment, and discloses a vertical tobacco shred winnowing device and a winnowing method for tobacco shred. The winnowing device comprises a winnowing cavity and a tobacco shred disordering assembly, and the top of the winnowing cavity communicates with an air extractor, so that airflow flowing from bottom to top circulates in the winnowing cavity; the winnowing cavity comprises a first winnowing cavity body and a second winnowing cavity body, the second winnowing cavity body is arranged at the bottom of the first winnowing cavity body in a communicating mode, the air speed of the first winnowing cavity body is smaller than that of the second winnowing cavity body, the winnowing cavity body is further provided with a feeding port used for supplying cut tobacco, and the feeding direction of the cut tobacco is opposite to the flowing direction of airflow; and the cut tobacco disrupting assembly is arranged at the bottom of the second winnowing cavity and used for blocking and disrupting clustered cut tobaccos, the winnowing efficiency of stem slivers in the cut tobaccos can be improved, the treatment problem of clustered and wet clustered cut tobaccos is solved, and the cut tobacco utilization rate is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tobacco processing equipment, in particular to a vertical leaf fiber air separator and an air separation method for leaf fiber. BACKGROUND

[0002] In the process of tobacco leaf (blade) fiber production, after drying (fiber drying), the leaf fiber is usually provided with an air separation cooling device, which can quickly reduce the temperature of the leaf fiber from about 60 DEG C to 35 DEG C, and separate the stems in the leaf fiber. The air separation cooling device usually adopts VAS (flowing cooling air separation) and FS (in-situ air separation) devices, each of which has advantages and disadvantages.

[0003] Among them, since the stem content in the leaf fiber is about 1.5% to 2.0% (the same below, according to the total amount of leaf fiber), the VAS air separation device has good effect on the stem air separation and removal, and generally can air separate 1% of the stems, but cannot air separate the bunched leaf fiber and wet bunched leaf fiber in the leaf fiber. The FS air separation device has good effect on the bunched and wet bunched leaf fiber in the leaf fiber, but can only air separate 0.35% of the stems, which puts a great pressure on the subsequent cigarette rolling process.

[0004] And in the air separation device of other silk structure such as stem silk, there is also a chamber air separation device, such as an internal feeding type air separation device, which generally has higher air separation efficiency than other air separation devices, but if applied to leaf fiber, it will cause the problem of leaf fiber crushing, that is, the increase of leaf fiber content, and cannot effectively process the bunched leaf fiber and wet bunched leaf fiber in the leaf fiber, which greatly causes the waste of leaf fiber.

[0005] Therefore, there is an urgent need for a vertical leaf fiber air separator and an air separation method for leaf fiber to solve the above technical problems. SUMMARY

[0006] An object of the present application is to provide a vertical leaf fiber air separator, which can improve the air separation efficiency of stems in leaf fiber, solve the problem of bunched and wet bunched leaf fiber processing, and improve the utilization rate of leaf fiber.

[0007] To achieve this object, the present application adopts the following technical solutions:

[0008] The vertical leaf fiber air separator comprises:

[0009] The air separation chamber is provided with a gas extraction device at the top thereof, so that the airflow flows from the bottom to the top in the air separation chamber; the air separation chamber comprises a first air separation chamber and a second air separation chamber, the second air separation chamber is arranged at the bottom of the first air separation chamber, the air speed of the first air separation chamber is less than that of the second air separation chamber, and the air separation chamber is also provided with a feeding port for supplying leaf fiber, the feeding direction of the leaf fiber is opposite to the flow direction of the airflow;

[0010] The tobacco shred disorganizing assembly is arranged at the bottom of the second winnowing cavity, and is used to block and disperse the tobacco shred.

[0011] Optionally, the winnowing cavity further comprises a waist-shaped connecting cavity, two ends of the waist-shaped connecting cavity are communicated with the first winnowing cavity and the second winnowing cavity respectively, and the maximum diameters of the first winnowing cavity, the waist-shaped connecting cavity and the second winnowing cavity are in a ratio of 1: (0.5-0.65): (0.7-0.85).

[0012] Optionally, the height ratio of the first winnowing cavity and the winnowing cavity is 1: (2.5-4.0).

[0013] Optionally, the tobacco shred disorganizing assembly comprises a driving member, a first rotary shred cutter and a second rotary shred cutter, the first rotary shred cutter is arranged at the top of the second rotary shred cutter, the cutting edge of the first rotary shred cutter and the cutting edge of the second rotary shred cutter are oppositely arranged, and the driving end of the driving member is connected to the first rotary shred cutter and / or the second rotary shred cutter to drive the first rotary shred cutter and / or the second rotary shred cutter to rotate.

[0014] Optionally, the tobacco shred disorganizing assembly further comprises a shred blocking net, the shred blocking net is arranged at the bottom of the second rotary shred cutter in a spaced manner, the shred blocking net is provided with a plurality of through holes, the cross-sectional area of the through holes is S, the minimum cross-sectional area of the tobacco shred is S1, and the maximum cross-sectional area of the stem is S2, and S2≤S≤S1.

[0015] Optionally, the winnowing cavity further comprises a feeding pipe, the feeding pipe is arranged at the feeding port of the winnowing cavity, the feeding pipe comprises a feeding end and a protruding end, the feeding end can be connected to an external feeding device, and the protruding end is arranged at the middle part of the first winnowing cavity to supply the tobacco shred to the winnowing cavity.

[0016] Optionally, the cross-sectional area of the feeding pipe gradually decreases from the feeding end to the protruding end.

[0017] Optionally, the winnowing cavity further comprises an air flow shunting shuttle, the air flow shunting shuttle is arranged at the bottom of the second winnowing cavity, the tobacco shred disorganizing assembly is sleeved on the outer periphery of the air flow shunting shuttle, and the air flow shunting shuttle is used to shunt the air flow of the second winnowing cavity.

[0018] Optionally, the winnowing cavity further comprises a tobacco shred shunting shuttle, the tobacco shred shunting shuttle is arranged in the first winnowing cavity and located at the bottom of the feeding port of the winnowing cavity.

[0019] Another object of the present application is to provide a winnowing method for tobacco shreds, which can improve the winnowing efficiency of stems in the tobacco shreds, solve the processing of tobacco shred agglomerates and wet agglomerates, and improve the utilization rate of the tobacco shreds.

[0020] To achieve the above object, the present application adopts the following technical solutions:

[0021] The method for air separation of cut tobacco uses the cut tobacco vertical air separator described above; the method for air separation of cut tobacco described above comprises the following steps:

[0022] The air separation device is opened to make the air flow from the bottom to the top in the air separation cavity, and the cut tobacco is fed through the feeding pipe;

[0023] The cut tobacco enters the first air separation cavity for air separation, the cut tobacco separated out is sent to the next process, the cut tobacco with a large amount of stems is sent to the second air separation cavity for air separation, the cut tobacco separated out is returned to the first air separation cavity for air separation, and the stems separated out are discharged, and the bunched cut tobacco is sent to the second air separation cavity and is scattered by the cut tobacco scattering assembly for air separation.

[0024] The present application has the following beneficial effects:

[0025] The present application provides a cut tobacco vertical air separator and a method for air separation of cut tobacco, which feeds the material by feeding, avoids the tobacco crushing caused by throwing the material, and separates the cut tobacco in the first air separation cavity. When the cut tobacco is separated, the separated cut tobacco is discharged to the next process, the cut tobacco with a large amount of stems and the bunched cut tobacco are sent to the second air separation cavity for air separation, the separated cut tobacco is returned to the first air separation cavity for air separation, and the stems separated out are discharged, wherein the bunched cut tobacco is sent to the cut tobacco scattering assembly for scattering, so that the scattered cut tobacco is separated in the second air separation cavity, thereby realizing the processing and effective use of the bunched cut tobacco, improving the utilization rate of the cut tobacco, and improving the air separation efficiency, air separation precision and cut tobacco purity through the air separation of the two air separation cavities. Moreover, the cut tobacco vertical air separator has simple structure, easy operation and low cost, and can significantly reduce the equipment cost. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a sectional view of the cut tobacco vertical air separator provided by the first embodiment of the present application;

[0027] Figure 2 is a sectional view of the cut tobacco vertical air separator provided by the second embodiment of the present application;

[0028] Figure 3 is an axonometric view of the cut tobacco scattering assembly provided by the specific embodiment of the present application;

[0029] Figure 4 is an axonometric view of part of the structure of the cut tobacco scattering assembly provided by the specific embodiment of the present application;

[0030] Figure 5 is a perspective view of the blocking screen provided by the specific embodiment of the present application;

[0031] Figure 6 Table of design parameters of the cut tobacco vertical air classifier according to the first embodiment of the present application;

[0032] Figure 7 Table of design parameters of the cut tobacco vertical air classifier according to the second embodiment of the present application.

[0033] In the drawings:

[0034] 10, air classification cavity; 101, discharge port; 102, waste port; 11, first air classification cavity; 12, second air classification cavity; 13, waist-shaped connecting cavity;

[0035] 20, cut tobacco disordering assembly; 21, first rotary thread breaking knife; 22, second rotary thread breaking knife; 23, driving member; 24, blocking screen; 241, through hole;

[0036] 30, feed pipe; 31, feed end; 32, insertion end;

[0037] 40, air flow shunting shuttle; 50, cut tobacco shunting shuttle. DETAILED DESCRIPTION

[0038] The present application will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended for the purpose of explanation and are not intended to limit the present application. In addition, it should be noted that only the parts related to the present application are shown in the drawings for the purpose of description, rather than all the parts.

[0039] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed", "abutted" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature is "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the first feature is horizontally higher than the second feature. The first feature is "under", "below" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the first feature is horizontally lower than the second feature.

[0041] In the description of the present embodiment, the terms "upper", "lower", "right", "left" and the like orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.

[0042] Reference will now be made to Figures 1 to 5 The present application provides a vertical leaf air separator and a leaf air separation method.

[0043] Please refer to Figure 1 and Figure 2 The present embodiment provides a vertical leaf air separator, which comprises an air separation cavity 10 and a leaf disturbing assembly 20. The top of the air separation cavity 10 is communicated with a gas extraction device, so that an airflow flows from the bottom to the top in the air separation cavity 10. The air separation cavity 10 comprises a first air separation cavity 11 and a second air separation cavity 12. The second air separation cavity 12 is communicated and arranged at the bottom of the first air separation cavity 11. The air speed of the first air separation cavity 11 is less than that of the second air separation cavity 12. The air separation cavity 10 is also provided with a feeding port for supplying leaf. The feeding direction of the leaf is opposite to the flowing direction of the airflow. The leaf disturbing assembly 20 is arranged at the bottom of the second air separation cavity 12. The leaf disturbing assembly 20 is used to block and scatter the bunched leaf.

[0044] The tobacco shred vertical air separator in the embodiment avoids tobacco shred crushing caused by material throwing by setting the first air separation cavity 11, the second air separation cavity 12 and the tobacco shred disorganizing assembly 20, and adopting material feeding type material delivery. The tobacco shreds enter the first air separation cavity 11 for air separation. When the tobacco shreds are air separated, the well-separated tobacco shreds are discharged to the next process, while the tobacco shreds with a large amount of stems and the bunched tobacco shreds fall into the second air separation cavity 12 for air separation. The well-separated tobacco shreds are returned to the first air separation cavity 11 for air separation again, and the separated stems fall and are discharged. The bunched tobacco shreds fall to the tobacco shred disorganizing assembly 20 for disorganization, so that the disorganized tobacco shreds are air separated in the second air separation cavity 12, thereby realizing the processing and effective utilization of the bunched tobacco shreds, improving the utilization rate of the tobacco shreds, and improving the air separation efficiency, air separation precision and tobacco shred purity through different air separation of the two air separation cavities. Moreover, the tobacco shred vertical air separator has simple structure, is easy to control, and is low in cost, thereby significantly reducing the equipment cost.

[0045] Moreover, it is obtained through tests that the tobacco shred air separation efficiency is as high as 99.5% and the stem removal rate is above 1.45% when the tobacco shreds are air separated by the tobacco shred vertical air separator in the embodiment.

[0046] Optionally, the air speed of the second air separation cavity 12 is 1.6 times of the air speed of the first air separation cavity 11. For example, the air speed of the first air separation cavity 11 is about 4 m / s, and the air speed of the second air separation cavity 12 is about 6.4 m / s. The air speed is set in this way because the suspension speed range of the pure tobacco shreds is between 2.15 m / s and 4.5 m / s, the suspension speed range of the tobacco shreds with stems is between 3.5 m / s and 6.75 m / s, and the suspension speed range of the stems is between 6.75 m / s and 10.8 m / s, so that the air speed selection of the air separation cavities can ensure that the pure tobacco shreds are air separated in the first air separation cavity 11 and rise and are discharged, the tobacco shreds with stems fall into the second air separation cavity 12 for secondary air separation, the pure tobacco shreds and the stems are separated, the pure tobacco shreds enter the first air separation cavity 11, and the stems fall and are discharged.

[0047] Further, the air separation cavity 10 further includes a waist-shaped connecting cavity 13, two ends of the waist-shaped connecting cavity 13 are communicated with the first air separation cavity 11 and the second air separation cavity 12 respectively, so that the air separation cavity 10 forms a gourd-shaped structure, which is more conducive to the formation of the first air separation cavity 11 and the second air separation cavity 12, and optimizes the internal airflow path and the air separation area.

[0048] Optionally, the maximum diameter ratio of the first air selection cavity 11, the waist-shaped connecting cavity 13 and the second air selection cavity 12 is 1:(0.5-0.65):(0.7-0.85), which is a suitable maximum diameter range of the air selection cavity 10, so that the air speed and air selection area in the first air selection cavity 11 and the second air selection cavity 12 meet the requirements, thereby facilitating the improvement of the air selection efficiency, air selection accuracy and stem removal effect of the cut tobacco in the air selection cavity 10 within the range.

[0049] Optionally, the maximum diameter ratio of the first air selection cavity 11, the waist-shaped connecting cavity 13 and the second air selection cavity 12 is 1:(0.5-0.65):(0.7-0.85), which is a suitable maximum diameter range of the air selection cavity 10, so that the air speed and air selection area in the first air selection cavity 11 and the second air selection cavity 12 meet the requirements, thereby facilitating the improvement of the air selection efficiency, air selection accuracy and stem removal effect of the cut tobacco in the air selection cavity 10 within the range.

[0050] Optionally, the height ratio of the first air selection cavity 11 and the air selection cavity 10 is 1:(2.5-4.0), and the air selection area in the first air selection cavity 11 can be changed by changing the height, which is a suitable height range of the air selection cavity 10, so that the air speed and air selection area in the first air selection cavity 11 and the second air selection cavity 12 meet the requirements, thereby facilitating the improvement of the air selection efficiency, air selection accuracy and cut tobacco purity in the air selection cavity 10 within the range.

[0051] Optionally, the height ratio of the first air selection cavity 11 and the air selection cavity 10 is 1:(2.5-4.0), and the air selection area in the first air selection cavity 11 can be changed by changing the height, which is a suitable height range of the air selection cavity 10, so that the air speed and air selection area in the first air selection cavity 11 and the second air selection cavity 12 meet the requirements, thereby facilitating the improvement of the air selection efficiency, air selection accuracy and cut tobacco purity in the air selection cavity 10 within the range.

[0052] It can be understood that the size of each position of the air selection cavity 10 can be adaptively designed according to the air flow, which is not limited here.

[0053] Further, the air selection cavity 10 further comprises a discharge port 101 and a waste port 102, the discharge port 101 and the waste port 102 are respectively arranged at the top and the bottom of the air selection cavity 10, the discharge port 101 is used for the outflow of the pure cut tobacco selected by air selection, the waste port 102 is used for the outflow of the waste such as stems, and the discharge port 101 is further communicated with a suction device, and the waste port 102 serves as an air inlet, so that the air selection cavity 10 is circulated with air flowing from the bottom to the top.

[0054] Optionally, a dust removal hopper is arranged at the waste port 102, which is used for collecting the waste such as guided stems, so as to avoid splashing during waste output and cause pollution.

[0055] Please refer toFigures 3 to 5 In the embodiment, the tobacco shred disorganizing assembly 20 comprises a driving member 23, a first rotary shred cutter 21 and a second rotary shred cutter 22. The first rotary shred cutter 21 is arranged on the top of the second rotary shred cutter 22, and the cutting edges of the first rotary shred cutter 21 and the second rotary shred cutter 22 are oppositely arranged. The driving end of the driving member 23 is connected to the first rotary shred cutter 21 and / or the second rotary shred cutter 22 to drive the first rotary shred cutter 21 and / or the second rotary shred cutter 22 to rotate. That is, the rotation of the first rotary shred cutter 21 and / or the second rotary shred cutter 22 can be realized by the driving of the driving member 23, so as to realize the disorganization of the bunched tobacco shreds.

[0056] Specifically, the first rotary shred cutter 21 and the second rotary shred cutter 22 are both arranged in a plurality of cutter ring arrays, so as to facilitate the cutting and disorganization of the bunched tobacco shreds when rotating.

[0057] Optionally, the cutting edges are wavy to prevent the tobacco shreds from sliding.

[0058] Optionally, the rotation direction of the first rotary shred cutter 21 is opposite to that of the second rotary shred cutter 22, which facilitates the cutting and disorganization of the bunched tobacco shreds.

[0059] Optionally, the distance between the first rotary shred cutter 21 and the second rotary shred cutter 22 is 1mm-3mm, and the running speed is 30r / min-100r / min, so as to realize better cutting and disorganization of the bunched tobacco shreds.

[0060] Optionally, the driving member 23 is provided with one, and the output end of the driving member 23 is connected to the first rotary shred cutter 21 and the second rotary shred cutter 22. The rotation direction can be changed through a transmission assembly. Or the driving member 23 is provided with two, and the output ends of the two driving members 23 are respectively connected to the first rotary shred cutter 21 and the second rotary shred cutter 22. The rotation directions of the two driving members 23 are opposite.

[0061] Optionally, the driving member 23 can be a driving structure such as a motor, which is not limited here.

[0062] Further, the tobacco shred disorganizing assembly 20 further comprises a shred blocking net 24, which is arranged at the bottom of the second rotary shred cutter 22 in a spaced manner. The shred blocking net 24 is provided with a plurality of through holes 241. The cross-sectional area of the through holes 241 is S, the minimum cross-sectional area of the tobacco shreds is S1, and the maximum cross-sectional area of the stems is S2. S2≤S≤S1, so as to realize the discharge of the stems and the retention of the pure tobacco shreds, thereby realizing the disorganization and re-airsifting of the tobacco shreds to the discharge port 101.

[0063] Optionally, the shape of the through holes 241 can be square, circular, etc., which is not limited here.

[0064] Exemplarily, the blocking wire screen 24 in the embodiment is a mesh structure of square through holes 241 with a hole diameter ranging from 24.5 mm to 45 mm, so as to achieve the discharge of stems and the blocking of tobacco bunches.

[0065] Optionally, the spacing between the blocking wire screen 24 and the bottom of the second rotary thread cutter 22 is 3 mm to 5 mm, so as to avoid obstruction and affect the rotation of the second rotary thread cutter 22.

[0066] Please refer back to Figure 1 and Figure 2 In the embodiment, the vertical tobacco leaf wind separator further comprises a feeding pipe 30 arranged at the feeding port of the wind separation cavity 10. The feeding pipe 30 comprises a feeding end 31 and a stretching end 32. The feeding end 31 is connectable to an external feeding device, and the stretching end 32 is arranged at the middle part of the first wind separation cavity 11 to supply tobacco leaves to the wind separation cavity 10. The feeding pipe 30 is arranged for the feeding type input of tobacco leaves, so as to realize the entry of the material.

[0067] Optionally, the cross-sectional area of the feeding pipe 30 gradually decreases from the feeding end 31 to the stretching end 32, specifically by gradually reducing the movement speed of the tobacco leaves. This arrangement avoids the influence of the air speed and air volume of the feeding pipe 30 on the wind separation inside the wind separation cavity 10, so as to improve the wind separation effect and reliability of the vertical tobacco leaf wind separator.

[0068] Optionally, the feeding end 31 adopts an oval design, and other positions are circular, which is more convenient for feeding.

[0069] Further, the vertical tobacco leaf wind separator further comprises an air flow shunting shuttle 40 arranged at the bottom of the second wind separation cavity 12. The tobacco leaf disturbing assembly 20 is sleeved on the outer periphery of the air flow shunting shuttle 40. The air flow shunting shuttle 40 is used for shunting the air flow of the second wind separation cavity 12, so as to avoid the stems from mixing into the tobacco leaves upward due to the excessively high air speed of the second wind separation cavity 12, and improve the wind separation effect.

[0070] Optionally, since the tobacco leaf disturbing assembly 20 is sleeved on the outer periphery of the air flow shunting shuttle 40, the driving member 23 and other structures in the tobacco leaf disturbing assembly 20 can be directly arranged in the air flow shunting shuttle 40, which not only improves the space utilization rate, but also does not affect the air speed of the air flow in the second wind separation cavity 12, thereby improving the wind separation effect and reliability of the vertical tobacco leaf wind separator.

[0071] Optionally, the air flow shunting shuttle 40 is a spindle structure, so as to realize the shunting effect of the air flow.

[0072] Further, the standing tobacco shred air separator further comprises a tobacco shred shunting shuttle 50, which is arranged in the first air separation chamber 11 and located at the bottom of the feed inlet of the air separation chamber 10. Such arrangement can not only reasonably control the air separation speed and air separation area of the first air separation chamber 11, thereby solving the problem of air speed variation caused by the direct insertion of the feed pipe 30 into the first air separation chamber 11, but also can shunt the tobacco shreds, thereby changing the movement direction of the tobacco shreds and improving the air separation effect of the first air separation chamber 11.

[0073] Optionally, the tobacco shred shunting shuttle 50 has a top conical structure and a bottom half-fusiform structure, so as to realize the shunting of the tobacco shreds and the air flow of the first air separation chamber 11.

[0074] The embodiment also provides a tobacco shred air separation method using the standing tobacco shred air separator according to any one of the above-mentioned schemes; the tobacco shred air separation method comprises the following steps: starting the air suction device to make the air separation chamber 10 have an air flow flowing from the bottom to the top, and feeding the tobacco shreds into the air separation chamber 10 through the feed pipe 30; the tobacco shreds enter the first air separation chamber 11 for air separation, the air-separated tobacco shreds enter the next working section, and other tobacco shreds with a large amount of stems are dropped into the second air separation chamber 12 for air separation, the air-separated tobacco shreds are returned to the first air separation chamber 11 for air separation again, the air-separated stems are dropped and discharged, and the bunched tobacco shreds are dropped into the second air separation chamber 12 and then are scattered by the tobacco shred scattering assembly 20 and subjected to air separation.

[0075] Through the tobacco shred air separation method, the chamber air separation of the tobacco shreds can be realized, and the air separation efficiency, air separation precision and tobacco shred purity are improved.

[0076] Some preferable specific embodiments are introduced below to specifically describe the standing tobacco shred air separator and the tobacco shred air separation method.

[0077] Embodiment one

[0078] Please refer to Figure 1 and Figure 6 , the embodiment provides a standing tobacco shred air separator and a tobacco shred air separation method, the standing tobacco shred air separator comprises all the structures described above, and the tobacco shred linear flow is 5000 kg / h, wherein the design parameters of the standing tobacco shred air separator are as shown in Figure 6 .

[0079] Specifically, the standing tobacco shred air separator comprises an air separation chamber 10, a tobacco shred scattering assembly 20, a feed pipe 30, an air flow shunting shuttle 40 and a tobacco shred shunting shuttle 50, the air speed and air separation area of the first air separation chamber 11 are further controlled by the tobacco shred shunting shuttle 50, so as to improve the air separation effect of the first air separation chamber 11.

[0080] Embodiment two

[0081] Please refer toFigure 2 and Figure 7 The embodiment provides a tobacco shred vertical air separator and an air separation method for tobacco shreds, and the main difference between the tobacco shred vertical air separator and the first embodiment is that the tobacco shred vertical air separator does not have a tobacco shred shunting shuttle 50, and the tobacco shred linear flow is 5000 kg / h, wherein the design parameters of the tobacco shred vertical air separator are as shown in Figure 7 .

[0082] Specifically, the tobacco shred vertical air separator comprises an air separation cavity 10, a tobacco shred disturbing assembly 20, a feeding pipe 30 and an air flow shunting shuttle 40, the air speed and the air separation area of the first air separation cavity 11 are further controlled by the change of the height and the diameter size of the first air separation cavity 11, that is, the air separation area of the first air separation cavity 11 is reduced, so that the air separation effect of the first air separation cavity 11 is improved.

[0083] In the description of the specification, the description referring to the terms "some embodiments", "other embodiments", and the like means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are contained in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in one or more embodiments or examples.

[0084] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present application. It is unnecessary and impossible to enumerate all the implementation modes here. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A vertical air separator with blades, characterized in that, include: The air separation chamber (10) is connected to an air extraction device at its top so that airflow flows from bottom to top within the air separation chamber (10); the air separation chamber (10) includes a first air separation chamber (11) and a second air separation chamber (12), the second air separation chamber (12) is connected to the bottom of the first air separation chamber (11), the wind speed of the first air separation chamber (11) is less than the wind speed of the second air separation chamber (12), the air separation chamber (10) is also provided with a feed inlet for supplying blades, the feeding direction of the blades is opposite to the flow direction of the airflow; The blade filament shuffling component (20) is located at the bottom of the second air separation chamber (12) and is used to block and break up the clumps of blade filaments.

2. The blade-type vertical air separator according to claim 1, characterized in that, The air separation chamber (10) further includes a waist-shaped connecting cavity (13), the two ends of which are connected to the first air separation chamber (11) and the second air separation chamber (12) respectively. The maximum diameter ratio of the first air separation chamber (11), the waist-shaped connecting cavity (13) and the second air separation chamber (12) is 1:(0.5-0.65):(0.7-0.85).

3. The vertical air separator with blades according to claim 1, characterized in that, The height ratio of the first air separation chamber (11) to the air separation chamber body (10) is 1:(2.5-4.0).

4. The blade-type vertical air separator according to claim 1, characterized in that, The leaf filament shuffling assembly (20) includes a drive member (23), a first rotating filament breaker (21), and a second rotating filament breaker (22). The first rotating filament breaker (21) is disposed on top of the second rotating filament breaker (22), and the blades of the first rotating filament breaker (21) and the second rotating filament breaker (22) are arranged facing each other. The drive end of the drive member (23) is connected to the first rotating filament breaker (21) and / or the second rotating filament breaker (22) to drive the first rotating filament breaker (21) and / or the second rotating filament breaker (22) to rotate.

5. The blade-type vertical air separator according to claim 4, characterized in that, The leaf filament shuffling component (20) also includes a wire-blocking mesh (24), which is spaced apart at the bottom of the second rotating wire-breaking knife (22). The wire-blocking mesh (24) has multiple through holes (241), the cross-sectional area of ​​the through holes (241) is S, the minimum cross-sectional area of ​​the leaf filament is S1, the maximum cross-sectional area of ​​the stem is S2, and S2≤S≤S1.

6. The blade-type vertical air separator according to claim 1, characterized in that, It also includes a feed pipe (30), which is located at the feed inlet of the air separation chamber (10). The feed pipe (30) includes a feed end (31) and an extension end (32). The feed end (31) can be connected to an external feeding device, and the extension end (32) is located in the middle of the first air separation chamber (11) to supply blades to the air separation chamber (10).

7. The blade-type vertical air separator according to claim 6, characterized in that, From the feed end (31) to the extension end (32), the cross-sectional area of ​​the feed tube (30) gradually decreases.

8. The blade-type vertical air separator according to any one of claims 1-7, characterized in that, It also includes an airflow diversion shuttle (40), which is located at the bottom of the second air selection chamber (12). The blade shuffling assembly (20) is sleeved on the outer periphery of the airflow diversion shuttle (40). The airflow diversion shuttle (40) is used to divert the airflow in the second air selection chamber (12).

9. The blade-type vertical air separator according to any one of claims 1-7, characterized in that, It also includes a blade splitter (50), which is disposed in the first air separation chamber (11) and located at the bottom of the feed inlet of the air separation chamber (10).

10. A method for wind separation of leaf fibers, characterized in that, Using the vertical air separator for leaf filaments as described in any one of claims 1-9; the air separation method for leaf filaments includes: Turn on the air extraction device so that airflow flows from bottom to top in the air separation chamber (10) and is introduced into the blades through the feed pipe (30); The leaf filaments enter the first air separation chamber (11) for air separation. The air-separated leaf filaments enter the next process section, while other leaf filaments with a large number of stems fall into the second air separation chamber (12) for air separation. The air-separated leaf filaments return to the first air separation chamber (11) for air separation. The air-separated stems fall and are discharged. The clumps of leaf filaments fall into the second air separation chamber (12) and are dispersed by the leaf filament shuffling component (20) for air separation.

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