A three-channel air separation sieve

Abstract

The present invention provides a three-channel air separation sieve, which comprises: an air separation sieve, a separation chamber is formed inside the air separation sieve, a screening mechanism and a separation mechanism are arranged inside the separation chamber, a screening mechanism is fixedly installed inside the bottom end of the three-channel air duct, a slag discharge mechanism is fixedly installed on the three-channel air duct, a constant pressure mechanism is arranged on the top of the settling tank, and the constant pressure mechanism is in transmission connection with the slag discharge mechanism. This application realizes the efficient sorting of cut tobacco by the cooperation of the air separation sieve and the settling tank. By dividing the materials into different sizes and then performing classified air separation, screening can be carried out more pertinently, so that heavy impurities and dust impurities in each material of different sizes and shapes can be removed more accurately. Multistage screening is carried out in the air separation sieve and the three-channel air duct, and lighter impurities such as dust can be filtered during the separation process. The powder generated by the cut tobacco is removed after being screened by the single-layer vibration separation part, ensuring that the selected cut tobacco is clean and free of impurities.

Description

Technical Field

[0001] The present invention relates to a three-channel air separation sieve, belonging to the technical field of cut tobacco sorting. Background Art

[0002] In the cut tobacco cooling process of the cigarette making line, it is necessary to sort the stem pieces and cut tobacco, and recover the available cut tobacco, which is beneficial to improving the quality of cigarette products, reducing the consumption of tobacco leaf raw materials, increasing the cut tobacco yield, etc. At present, in the domestic cigarette making production process, the air separation method is generally used to online remove the stem pieces in the cut tobacco. In the finished cigarette, if there are residual stem pieces in the cut tobacco, it is easy to cause the cigarette to be punctured. When the smoker smokes, the stem pieces are easy to burn and form defects such as the so-called "blooming cigarette", which causes great damage to the smoking experience and affects the quality of the finished cigarette.

[0003] The existing sorting and recovery devices have low automation, insufficiently fine sorting, and low recovery efficiency, and there is still a large room for improvement. During the cut tobacco cooling process, it is impossible to further distinguish and recover the waste of stems (pieces) and (cut) tobacco mixed together in the tobacco industry during the processing and production process, and the recovery efficiency of the filamentous materials in the generated mixed waste is low, increasing the cost loss. When the cut tobacco is screened by sorting, it is not easy to effectively sort according to the weight of the cut tobacco, so there may still be impurities in the cut tobacco, and it is also easy to cause a high proportion of cut tobacco in the screened mixed waste, and the cleaning efficiency of the dust impurities in the cut tobacco is not high, affecting the quality of the finished cut tobacco. Summary of the Invention

[0004] The present invention provides a three-channel air separation sieve in order to solve the technical problems of low sorting efficiency and poor sorting effect of cut tobacco.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] The present invention provides a three-channel air separation sieve, and the air separation sieve includes:

[0007] An air separation sieve, which is fixedly installed on the top of the frame. Three-layer vibration separation parts and a single-layer vibration separation part are respectively installed on the surface of the frame. The three-layer vibration separation part is fixedly connected to the air separation sieve. The top of the air separation sieve is communicated with a settling tank through a three-channel air duct, and the bottom of the settling tank is communicated with the single-layer vibration separation part through an air lock;

[0008] A separation cavity is formed inside the air separation sieve. A screening mechanism is provided inside the separation cavity. A separation mechanism is provided inside the air separation sieve above the screening mechanism. The three-channel air duct is fixedly installed on the top of the air separation sieve. The screening mechanism is fixedly installed inside the bottom end of the three-channel air duct. A slag discharge mechanism is fixedly installed on the three-channel air duct on one side of the screening mechanism. A constant pressure mechanism is provided on the top of the sedimentation tank, and the constant pressure mechanism is in transmission connection with the slag discharge mechanism.

[0009] In this technical solution, the outlet end of the three-layer vibration separation part is communicated with the air separation sieve through the separation part channel inlet. Three evenly distributed separation cavities are provided at the bottom of the air separation sieve. The separation part channel inlet is a three-channel structure and is respectively communicated with the three separation cavities of the air separation sieve. A screening mechanism is provided inside each separation cavity. The screening mechanism includes a front partition board and a rear partition board, and both the front partition board and the rear partition board are fixedly connected to the air separation sieve. The front partition board and the rear partition board are respectively located on the front and rear sides of the air separation sieve. The front partition board and the rear partition board are staggered. The rear partition board is an inclined structure. A collection hopper is fixedly connected to the bottom of the air separation sieve below the rear partition board.

[0010] In this technical solution, an opening is provided in the middle of the air separation sieve. The opening is correspondingly arranged above the front partition board. A separation mechanism is provided above the opening. The separation mechanism includes an inclined plate. The inclined plate is fixedly connected to the top of the air separation sieve. The inclined plate is correspondingly arranged on one side of the three-channel air duct. A mesh plate is fixedly connected to the top of the inclined plate. A screen for separating cut tobacco is fixedly connected to the bottom of the inclined plate. The inner wall of the air separation sieve is rotationally connected with a cover plate, and the cover plate is in surface contact with the inclined plate and is correspondingly distributed with the screen.

[0011] In this technical solution, the three-channel air duct is a square hollow structure. The three-channel air duct is respectively communicated with the three separation cavities of the air separation sieve. The screening mechanism at the bottom of the three-channel air duct includes a filter hopper. The filter hopper is fixedly connected to the inner wall of the three-channel air duct. The bottom diameter of the filter hopper is larger than its top diameter. A filter screen is fixedly connected to the surface of the filter hopper, and a number of evenly distributed guide plates are fixedly connected to the surface of the filter screen. Each guide plate is an annular structure, and an adjusting mechanism is provided above the filter hopper.

[0012] In this technical solution, the adjusting mechanism includes a rotating plate. The rotating plate is rotationally connected to the top of the filter hopper. The rotating plate is inclined and distributed above the filter hopper. The top of the rotating plate is rotationally connected to a connecting piece. The connecting piece is rotationally connected to the telescopic end of an electric push rod, and the electric push rod is fixedly installed and connected to the outer wall of the three-channel air duct. A vertically distributed partition plate is fixedly installed on the top of the three-channel air duct, and the partition plate is correspondingly arranged above one side of the rotating plate.

[0013] In this technical solution, the slag discharging mechanism includes a slag discharging pipe, which is fixedly connected to the bottom of the three-channel air duct. The slag discharging pipe is obliquely arranged below the filter hopper. A blocking block is slidably connected inside the slag discharging pipe. The blocking block is connected to the bottom of the slag discharging pipe through a first spring. The top of the blocking block is fixedly connected to a guide rod, and the guide rod is inserted through the top of the slag discharging pipe. The bottom of the blocking block is fixedly connected to a first pull rope. The first pull rope is located inside the first spring and is inserted through the slag discharging pipe, and the first pull rope passes through the air separation sieve and is fixedly connected to the cover plate.

[0014] In this technical solution, a blower is fixedly installed on one side of the settling tank. A number of side baffles symmetrically distributed in pairs are fixedly installed inside the settling tank. Each side baffle has an L-shaped cross-section. Long holes are formed on the surface of the side baffle, and a constant pressure mechanism is provided between every two side baffles.

[0015] In this technical solution, the constant pressure mechanism includes an adjusting plate, which is rotatably connected to the inner wall of the settling tank. The adjusting plate is obliquely distributed above the three-channel air duct. The adjusting plate is located between the side baffles. Connecting rods are fixedly connected to both sides of the adjusting plate, and the connecting rods are slidably connected inside the long holes. One end of each connecting rod is fixedly connected to a connecting plate and a connecting block respectively. The connecting plate is in close contact with the inner wall of the side baffle. The connecting plate and the connecting block are both located inside the side baffle, and the connecting block is connected to the top of the settling tank through a second spring.

[0016] In this technical solution, the bottom of the settling tank is inserted through by a second pull rope. The top of the second pull rope is fixedly connected to the connecting block. The bottom of the second pull rope is fixedly connected to the guide rod. A guide wheel is rotatably connected to the bottom of the settling tank, and the second pull rope is located on the surface of the guide wheel.

[0017] In this technical solution, the settling tank is fixedly connected to one side of the top of the air separation sieve. The bottom of the settling tank is fixedly connected to an air lock. The air lock is a cylindrical hollow shell. A micro motor is fixedly installed on the outside of the air lock. The output end of the micro motor is fixedly connected to a side plate. The side plate is circular and is located inside the air lock. The number of side plates is two. The two side plates are respectively fixedly connected to both ends of a layered plate. The layered plate is correspondingly arranged below the settling tank, and the bottom of the air lock is communicated with a single-layer vibration separation part.

[0018] On the basis of conforming to the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0019] The positive and progressive effects of the present invention are as follows:

[0020] The above-mentioned three-channel air separation sieve realizes the efficient sorting of cut tobacco by the cooperation of the air separation sieve and the sedimentation tank. By dividing the materials into different size categories and then performing classified air separation, it can screen more targeted, so that each material with different sizes and shapes can have the heavy impurities and dust-like impurities removed more accurately. And it performs multi-stage screening in the air separation sieve and the three-channel air duct, effectively distinguishing the cut tobacco with uniform quality from other impurities, facilitating subsequent sedimentation treatment, and being able to filter out lighter impurities such as dust during the separation process, avoiding the influence of the broken powder doped during the separation process on the quality, improving the separation effect. At the same time, it can solve the problem of the change in air flow pressure when too much or too little cut tobacco is put in, ensuring the uniform performance of separation. The cut tobacco selected after air separation generates some fine powders during the movement process and the fine powders that settle with the cut tobacco during air separation. After being screened by the single-layer vibration separation part, they are removed, so as to ensure that the selected cut tobacco is clean and free of impurities, meeting the quality requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic three-dimensional structure diagram of the whole invention.

[0022] Figure 2 It is a schematic front internal structure diagram of the air separation sieve of the invention.

[0023] Figure 3 It is a schematic side internal structure diagram of the sedimentation tank of the invention.

[0024] Figure 4 It is a schematic front internal structure diagram of the three-channel air duct of the invention.

[0025] Figure 5 It is a schematic side external structure diagram of the invention.

[0026] Figure 6 It is a schematic side structure diagram at the channel entrance of the separation part of the invention.

[0027] Figure 7 It is a schematic three-dimensional structure diagram of the three-channel air duct of the invention.

[0028] Figure 8 It is a schematic three-dimensional structure diagram of the slag discharge pipe of the invention.

[0029] Figure 9 It is a schematic three-dimensional structure diagram of the sedimentation tank of the invention.

[0030] Figure 10 It is a schematic three-dimensional structure diagram of the side baffle of the invention.

[0031] DESCRIPTION OF THE REFERENCE NUMERALS

[0032] 100, frame; 200, three - layer vibration separation section; 201, separation section channel entrance; 300, air separation sieve; 301, separation chamber; 302, front partition; 303, rear partition; 304, opening; 305, inclined plate; 306, mesh plate; 307, cover plate; 308, collection hopper; 400, three - channel air duct; 401, filter hopper; 402, filter screen; 403, deflector; 404, electric push rod; 405, connecting piece; 406, rotating plate; 407, partition plate; 408, slag discharge pipe; 409, plug; 410, first spring; 411, first pull rope; 412, guide rod; 500, sedimentation tank; 501, fan; 502, side baffle; 503, long hole; 504, adjusting plate; 505, connecting rod; 506, connecting plate; 507, connecting block; 508, second spring; 509, second pull rope; 510, guide wheel; 511, air lock; 512, micro - motor; 513, side plate; 514, layering plate; 600, single - layer vibration separation section. Detailed implementation mode

[0033] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the described embodiments.

[0034] As Figures 1-10 shown, the air separation sieve includes:

[0035] The air separation sieve 300 is fixedly installed on the top of the frame 100. The surface of the frame 100 is respectively installed with a three - layer vibration separation section 200 and a single - layer vibration separation section 600. The three - layer vibration separation section 200 is fixedly connected to the air separation sieve 300. The top of the air separation sieve 300 is communicated with the sedimentation tank 500 through a three - channel air duct 400, and the bottom of the sedimentation tank 500 is communicated with the single - layer vibration separation section 600 through an air lock 511. The cut tobacco containing impurities is transported from the bracket to the three - layer vibration separation section 200. The three - layer vibration separation section 200 divides the material into three material channels of different sizes, and enters the air separation sieve 300 through the separation section channel entrance 201. Different degrees of screening are carried out on the cut tobacco of different sizes, and appropriate screening is carried out according to the weight of the cut tobacco to improve the screening effect;

[0036] A separation chamber 301 is formed inside the air separation sieve 300. A screening mechanism is provided inside the separation chamber 301. A separation mechanism is provided inside the air separation sieve 300 above the screening mechanism. The three-channel air duct 400 is fixedly installed on the top of the air separation sieve 300. A screening mechanism is fixedly installed inside the bottom end of the three-channel air duct 400. A slag discharge mechanism is fixedly installed on the three-channel air duct 400 on one side of the screening mechanism. A constant pressure mechanism is provided on the top of the settling tank 500, and the constant pressure mechanism is in transmission connection with the slag discharge mechanism. By separating cut tobacco inside the air separation sieve 300, heavier materials are discharged, and the cut tobacco is conveyed to the settling tank 500 through the three-channel air duct 400. At this time, the cut tobacco is separated from the air flow and falls into the settling tank 500 for subsequent processing.

[0037] In this technical solution, the outlet end of the three-layer vibration separation part 200 is communicated with the air separation sieve 300 through the separation part channel inlet 201. Three evenly distributed separation chambers 301 are provided at the bottom of the air separation sieve 300. The separation part channel inlet 201 is a three-channel structure and is respectively communicated with the three separation chambers 301 of the air separation sieve 300. A screening mechanism is provided inside each separation chamber 301. The screening mechanism includes a front partition 302 and a rear partition 303, and both the front partition 302 and the rear partition 303 are fixedly connected to the air separation sieve 300. The front partition 302 and the rear partition 303 are respectively located on the front and rear sides of the air separation sieve 300. The front partition 302 and the rear partition 303 are staggered. The rear partition 303 is an inclined structure. A collection hopper 308 is fixedly connected to the bottom of the air separation sieve 300 below the rear partition 303. The cut tobacco entering from the separation part channel inlet 201 first passes through the position of the front partition 302. At this time, the heavier cut tobacco and impurities fall below the front partition 302, while the lighter cut tobacco and impurities directly enter the opening 304 from above the front partition 302. The heavier cut tobacco and impurities are separated again through the rear partition 303 during the air flow transportation. Since the flow rate at the bottom of the air separation sieve 300 is relatively low, the heavier impurities and part of the cut tobacco fall into the collection hopper 308 for the collection of mixed waste, and the cut tobacco enters above the air separation sieve 300 from the opening 304 along with the air flow.

[0038] In this technical solution, an opening 304 is provided in the middle of the air separation sieve 300. The opening 304 is correspondingly arranged above the front partition plate 302. A separation mechanism is provided above the opening 304. The separation mechanism includes an inclined plate 305. The inclined plate 305 is fixedly connected to the top of the air separation sieve 300. The inclined plate 305 is correspondingly arranged on one side of the three-channel air duct 400. A mesh plate 306 is fixedly connected to the top of the inclined plate 305. A screen for separating cut tobacco is fixedly connected to the bottom of the inclined plate 305. The inner wall of the air separation sieve 300 is rotatably connected to the cover plate 307. The cover plate 307 is in surface contact with the inclined plate 305 and is correspondingly distributed with the screen. When the cut tobacco is conveyed upward along with the air flow, at this time, the cut tobacco contacts the screen on the inclined plate 305 and is conveyed upward, so that the cut tobacco of different weights is sequentially conveyed from the three-channel air duct 400 into the settling tank 500. When the conveying quantity of the cut tobacco is too large, resulting in a decrease in the air flow discharge efficiency, at this time, the air pressure in the air separation sieve 300 and the three-channel air duct 400 increases. When the cover plate 307 moves upward, at this time, the air flow circulates at the inclined plate 305, so that part of the gas passes through the screen and is discharged from the filter screen 402 to balance the air pressure. Lighter impurities such as dust pass through the screen and are collected on the surface of the filter screen 402. When the pressure is balanced, the cover plate 307 is closed again. At this time, the air flow at the filter screen 402 no longer circulates, so that the collected impurities settle at the bottom of the inclined plate 305 for collection.

[0039] In this technical solution, the three-channel air duct 400 is a square hollow structure. The three-channel air duct 400 is respectively communicated with three separation chambers 301 of the air separation sieve 300. The screening mechanism at the bottom of the three-channel air duct 400 includes a filter hopper 401. The filter hopper 401 is fixedly connected to the inner wall of the three-channel air duct 400. The bottom diameter of the filter hopper 401 is larger than its top diameter. A filter screen 402 is fixedly connected to the surface of the filter hopper 401. A plurality of uniformly distributed flow guiding plates 403 are fixedly connected to the surface of the filter screen 402. Each flow guiding plate 403 is an annular structure. An adjusting mechanism is provided above the filter hopper 401. The three-channel air duct 400 is sequentially communicated with the separation chambers 301 of the air separation sieve 300, so that cut tobacco of different sizes enters the bottom inlet of the three-channel air duct 400 and the lighter impurities in the cut tobacco are filtered by the screening mechanism to ensure the integrity of the subsequent cut tobacco. Since the air flow circulation inlet at the filter hopper 401 gradually decreases, the cut tobacco contacts the surface of the filter screen 402 during the conveying process. Fine cut tobacco and other impurities pass through the filter screen 402 and enter the periphery of the filter hopper 401. At this time, the air flow velocity decreases, so that the cut tobacco impurities and the like fall to the bottom of the filter hopper 401 from the flow guiding plates 403, thereby realizing the collection of impurities and filtering impurities during the screening process.

[0040] In this technical solution, the adjusting mechanism includes a rotating plate 406, which is rotatably connected to the top of the filter hopper 401. The rotating plate 406 is obliquely distributed above the filter hopper 401. The top of the rotating plate 406 is rotatably connected to a connecting member 405, and the connecting member 405 is rotatably connected to the telescopic end of the electric push rod 404. The electric push rod 404 is fixedly installed on the outer wall of the three-channel air duct 400. A vertically distributed partition plate 407 is fixedly installed at the top of the three-channel air duct 400, and the partition plate 407 is correspondingly arranged above one side of the rotating plate 406. When the air flows through the three-channel air duct 400, the air flowing out from the filter hopper 401 contacts the rotating plate 406, causing the air to carry lighter impurities and move upward from the right side of the partition plate 407. The air in contact with the rotating plate 406 is obliquely upwardly conveyed, reducing the air flow rate. The heavier tobacco shreds move upward from the left side of the partition plate 407, and are stratified and conveyed according to the weight of the tobacco shreds, and further screened inside the three-channel air duct 400. By the telescopic movement of the electric push rod 404 to drive the connecting member 405 to rotate, the connecting member 405 drives the rotating plate 406 to rotate to adjust the channel sizes on both sides of the partition plate 407, thereby adjusting the air flow conveying rate.

[0041] In this technical solution, the slag discharging mechanism includes a slag discharging pipe 408, which is fixedly connected to the bottom of the three-channel air duct 400. The slag discharging pipe 408 is obliquely arranged below the filter hopper 401. A blocking block 409 is slidably connected inside the slag discharging pipe 408. The blocking block 409 is connected to the bottom of the slag discharging pipe 408 through a first spring 410. The top of the blocking block 409 is fixedly connected to a guide rod 412, and the guide rod 412 is inserted through the top of the slag discharging pipe 408. The bottom of the blocking block 409 is fixedly connected to a first pulling rope 411. The first pulling rope 411 is located inside the first spring 410 and is inserted through the slag discharging pipe 408, and the first pulling rope 411 passes through the air separation sieve 300 and is fixedly connected to the cover plate 307. The impurities filtered by the filter screen 402 can be collected below the filter hopper 401. When the guide rod 412 is stressed to drive the blocking block 409 to move, the blocking block 409 is separated from the slag discharging pipe 408. At this time, the air flow in the slag discharging pipe 408 is unblocked, enabling some gas to pass through the filter screen 402 and be discharged from the slag discharging pipe 408, and discharging the collected impurities together, and playing a role in pressure relief to ensure the balance of the air flow temperature. The movement of the blocking block 409 drives the pulling rope to move simultaneously, causing the pulling rope to pull the cover plate 307 to rotate, opening the inclined plate 305. At this time, some gas enters the inclined plate 305, and when the internal air pressure is too high, it plays a role in pressure relief, further improving the pressure balance.

[0042] In this technical solution, a blower 501 is fixedly installed on one side of the sedimentation tank 500. Inside the sedimentation tank 500, a number of side baffles 502 are fixedly installed and are symmetrically distributed in pairs. The cross-section of each side baffle 502 is an L-shaped structure. A long hole 503 is formed on the surface of the side baffle 502, and a constant pressure mechanism is provided between every two side baffles 502. The blower 501 is used to increase the negative pressure wind force, so that the air flow circulates through the three-layer vibration separation part 200, the air separation screen 300, the three-channel air duct 400 and the sedimentation tank 500. The regulating plate 504 arranged between the side baffles 502 can control the discharge amount of the lighter materials. When the air flow carries the cut tobacco for transportation, the moving speed of the cut tobacco is less than the air flow speed. When there is too much cut tobacco, it will hinder the air flow. Under the condition of the constant power of the blower 501, the internal pressure thereof will increase. At this time, the air flow entering the sedimentation tank 500 increases, so that the air flow pushes the regulating plate 504 to rotate, causing the regulating plate 504 to drive the connecting rod 505 to move inside the long hole 503, and the regulating plate 504 makes the cut tobacco rotate above the sedimentation tank 500 and fall to the lower part of the sedimentation tank 500 as the flow rate decreases.

[0043] In this technical solution, the constant pressure mechanism includes a regulating plate 504. The regulating plate 504 is rotatably connected to the inner wall of the sedimentation tank 500. The regulating plate 504 is obliquely distributed above the three-channel air duct 400. The regulating plate 504 is located between the side baffles 502. Connecting rods 505 are fixedly connected to both sides of the regulating plate 504, and the connecting rods 505 are slidably connected to the inside of the long holes 503. One ends of the connecting rods 505 are fixedly connected to a connecting plate 506 and a connecting block 507 respectively, and the connecting plate 506 is in close contact with the inner wall of the side baffle 502. The connecting plate 506 and the connecting block 507 are both located inside the side baffle 502, and the connecting block 507 is connected to the top of the sedimentation tank 500 through a second spring 508. When the regulating plate 504 rotates, it drives the connecting plate 506 and the connecting block 507 to move synchronously. When the connecting plate 506 moves, it always contacts the long hole 503 to prevent the cut tobacco from entering the inside of the long hole 503. When the connecting block 507 moves, it drives a second pull rope 509 to move. The guide rod 412 is pulled by the second pull rope 509, and the guide rod 412 drives the plug 409 to separate from the slag discharge pipe 408. At this time, part of the gas is discharged to reduce the air pressure inside the air separation screen 300 and the three-channel air duct 400. When the air pressure returns to normal, the plug 409 resets, thereby ensuring the balance of the air pressure inside the air separation screen 300 and the three-channel air duct 400.

[0044] In the present technical solution, the bottom of the sedimentation box 500 is penetrated and plugged with the second pull rope 509, the top of the second pull rope 509 is fixedly connected to the connecting block 507, the bottom of the second pull rope 509 is fixedly connected to the guide rod 412, and the bottom of the sedimentation box 500 is rotatably connected to a guide wheel 510, and the second pull rope 509 is located on the surface of the guide wheel 510, the second pull rope 509 can be pulled by the guide wheel 510, and the connecting block 507 can be reset by the second spring 508.

[0045] In the present technical solution, the sedimentation box 500 is fixedly connected to one side of the top of the air separation screen 300, and the bottom of the sedimentation box 500 is fixedly connected to the air lock 511. The air lock 511 is a cylindrical hollow shell. A micro motor 512 is fixedly installed on the outside of the air lock 511. The output end of the micro motor 512 is fixedly connected to the side plate 513. The side plate 513 is a circular structure and is located inside the air lock 511. There are two side plates 513. The two side plates 513 are fixedly connected to the two ends of the layered plate 514 respectively, and the layered plate 514 is correspondingly arranged below the sedimentation box 500, and The bottom of the air lock 511 is connected to the single-layer vibration separation part 600, and the tobacco falling from the sedimentation box 500 enters the air lock 511. At this time, the stratification plate 514 is located at the bottom of the sedimentation box 500, so that the tobacco falls between the stratification plates 514. The micro motor 512 drives the side plate 513 and the stratification plate 514 to rotate to move the tobacco to the bottom of the air lock 511, and then the tobacco is discharged. At this time, the stratification plate 514 always ensures the closure of the bottom of the sedimentation box 500 to prevent gas from entering and affecting the screening effect. The discharged tobacco enters the single-layer vibration separation part 600, and the tobacco fines produced during the separation are filtered to improve the quality of the tobacco.

[0046] The present invention is not limited to the above-mentioned embodiments. Those skilled in the art can make various changes or modifications to these embodiments. Regardless of any changes in shape or structure, as long as they do not deviate from the purpose and spirit of the present invention, these changes and modifications fall within the scope of protection of the present invention. The scope of protection of the present invention is defined by the attached claims.

Claims

1. A three-channel air separation screen, characterized in that: The air separation screen comprises: An air separation screen (300), the air separation screen (300) being fixedly mounted on the top of a frame (100), a three-layer vibration separation portion (200) and a single-layer vibration separation portion (600) being respectively mounted on the surface of the frame (100), the three-layer vibration separation portion (200) being fixedly connected to the air separation screen (300), the top of the air separation screen (300) being connected to a sedimentation box (500) via a three-channel air duct (400), and the bottom of the sedimentation box (500) being connected to the single-layer vibration separation portion (600) via an air lock (511); A separation chamber (301) is formed inside the air separation screen (300), a screening mechanism is provided inside the separation chamber (301), a separation mechanism is provided inside the air separation screen (300) located above the screening mechanism, the three-channel air duct (400) is fixedly mounted to the top of the air separation screen (300), a screening mechanism is fixedly mounted inside the bottom of the three-channel air duct (400), a slag discharge mechanism is fixedly mounted on the three-channel air duct (400) located on one side of the screening mechanism, a constant pressure mechanism is provided on the top of the settling box (500), and the constant pressure mechanism is transmission-connected to the slag discharge mechanism; the outlet end of the three-layer vibration separation part (200) is connected to the air separation screen (300) through the separation part channel inlet (201), and the air separation screen ( The bottom of the air separation screen (300) is provided with three evenly distributed separation chambers (301), the separation channel inlet (201) is a three-channel structure and is respectively communicated with the three separation chambers (301) of the air separation screen (300), each separation chamber (301) is provided with a screening mechanism, the screening mechanism comprises a front partition (302) and a rear partition (303), and the front partition (302) and the rear partition (303) are both fixedly connected to the air separation screen (300), the front partition (302) and the rear partition (303) are respectively located at the front and rear sides of the air separation screen (300), the front partition (302) and the rear partition (303) are staggered, and the rear partition (303) is an inclined structure and is located at the rear partition (303). The air separation screen (300) below (303) is fixedly connected to a collecting bucket (308) at the bottom, an opening (304) is provided in the middle of the air separation screen (300), the opening (304) is correspondingly arranged above the front partition (302), a separation mechanism is provided above the opening (304), the separation mechanism comprises an inclined plate (305), the inclined plate (305) is fixedly connected to the top of the air separation screen (300), the inclined plate (305) is correspondingly arranged on one side of the three-channel air duct (400), a mesh plate (306) is fixedly connected to the top of the inclined plate (305), a screen for tobacco separation is fixedly connected to the bottom of the inclined plate (305), and the inner wall of the air separation screen (300) is rotatably connected to the cover plate (307). , and the cover plate (307) is connected to the surface of the inclined plate (305) and is distributed corresponding to the screen, the three-channel air duct (400) is a square hollow structure, the three-channel air duct (400) is respectively connected to the three separation chambers (301) of the air separation screen (300), the screening mechanism at the bottom of the three-channel air duct (400) comprises a filter bucket (401), the filter bucket (401) is fixedly connected to the inner wall of the three-channel air duct (400), the bottom diameter of the filter bucket (401) is larger than the top diameter, the surface of the filter bucket (401) is fixedly connected to the filter screen (402), and the surface of the filter screen (402) is fixedly connected to a plurality of evenly distributed guide plates (403), each of the guide plates (403) is an annular structure,An adjustment mechanism is provided above the filter bucket (401), the adjustment mechanism comprising a rotating plate (406), the rotating plate (406) being rotatably connected to the top of the filter bucket (401), the rotating plate (406) being tilted and distributed above the filter bucket (401), the top of the rotating plate (406) being rotatably connected to a connecting piece (405), the connecting piece (405) being rotatably connected to the telescopic end of an electric push rod (404), and the electric push rod (404) being fixedly mounted to the outer wall of the three-channel air duct (400), and a vertical distribution member (406) being fixedly mounted on the top of the three-channel air duct (400). The interlayer plate (407) is provided on one side of the rotating plate (406), and the interlayer plate (407) is correspondingly arranged above one side of the rotating plate (406); a fan (501) is fixedly installed on one side of the settling box (500); a plurality of side baffles (502) symmetrically distributed in pairs are fixedly installed inside the settling box (500); each of the side baffles (502) has an L-shaped cross-section; a long hole (503) is opened on the surface of the side baffles (502); and a constant pressure mechanism is provided between every two of the side baffles (502); the constant pressure mechanism includes an adjustment plate (504); and the adjustment plate (5 04) is rotatably connected to the inner wall of the sedimentation box (500), the adjustment plate (504) is tilted and distributed above the three-channel air duct (400), the adjustment plate (504) is located between the side baffles (502), both sides of the adjustment plate (504) are fixedly connected with connecting rods (505), and the connecting rods (505) are slidably connected to the inside of the long hole (503), one end of the connecting rod (505) is fixedly connected to the connecting plate (506) and the connecting block (507), and the connecting plate (506) is fitted and connected to the inner wall of the side baffle (502), and the connecting plate ( 506) and the connecting block (507) are both located inside the side baffle (502), and the connecting block (507) is connected to the top of the sedimentation box (500) through the second spring (508), the bottom of the sedimentation box (500) is inserted through the second pull rope (509), the top of the second pull rope (509) is fixedly connected to the connecting block (507), the bottom of the second pull rope (509) is fixedly connected to the guide rod (412), the bottom of the sedimentation box (500) is rotatably connected to a guide wheel (510), and the second pull rope (509) is located on the surface of the guide wheel (510).

2. The three-channel air separation screen according to claim 1, characterized in that: The slag discharge mechanism comprises a slag discharge pipe (408), wherein the slag discharge pipe (408) is fixedly connected to the bottom of the three-channel air duct (400), the slag discharge pipe (408) is tiltedly arranged below the filter bucket (401), a block (409) is slidably connected inside the slag discharge pipe (408), the block (409) is connected to the bottom of the slag discharge pipe (408) through a first spring (410), the top of the block (409) is fixedly connected to a guide rod (412), and the guide rod (412) is inserted through the top of the slag discharge pipe (408), the bottom of the block (409) is fixedly connected to a first pull rope (411), the first pull rope (411) is located inside the first spring (410) and is inserted through the slag discharge pipe (408), and the first pull rope (411) passes through the air separation screen (300) and is fixedly connected to the cover plate (307).

3. The three-channel air separation screen according to claim 1, characterized in that: The sedimentation box (500) is fixedly connected to one side of the top of the air separation screen (300), and the bottom of the sedimentation box (500) is fixedly connected to the air lock (511). The air lock (511) is a cylindrical hollow shell. A micro motor (512) is fixedly installed on the outside of the air lock (511). The output end of the micro motor (512) is fixedly connected to a side plate (513). The side plate (513) is a circular structure and is located inside the air lock (511). There are two side plates (513). The two side plates (513) are fixedly connected to two ends of a layered plate (514), respectively. The layered plates (514) are correspondingly arranged below the sedimentation box (500), and the bottom of the air lock (511) is connected to the single-layer vibration separation part (600).

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