A multi-stage air separation device for tobacco shreds

Abstract

This invention discloses a multi-stage air separation device for tobacco shreds, comprising a main body, which includes: a receiving mechanism for performing multiple air separations on the tobacco shreds; an air separation mechanism disposed inside the receiving mechanism, comprising a first air separator, a second air separator, and a third air separator with sequentially decreasing air force and height; and a collection mechanism disposed inside the receiving mechanism and below the air separation mechanism, for collecting the different tobacco shreds separated by the first, second, and third air separators. By designing the main body, this invention automatically separates the tobacco shreds into four different categories during the air separation process using wind force combined with gravity. Compared to traditional air separation devices that rely solely on wind power, this invention requires less energy, improving the economic efficiency of enterprises. Furthermore, the collection mechanism enables unified classification and recycling, resulting in better device performance, easier handling by users, and enhanced practicality.

Description

Technical Field

[0001] This invention relates to the field of tobacco air separation technology, and more specifically, to a device for multiple air separation of tobacco. Background Technology

[0002] Air separation utilizes the difference in suspension velocity between materials and impurities to remove impurities using wind power. The purpose of air separation is to remove light impurities and dust, while also removing some heavier impurities such as stones and clods of soil. This method is commonly used for cleaning oilseeds such as cottonseed and sunflower seeds, as well as for dust and foreign matter removal in the grain and tobacco industries. This method is suitable for separating solid wastes with similar particle shapes and sizes. Sometimes, crushing and screening can be performed first, followed by air separation. Air separation equipment is classified into three types according to the main direction of the working airflow: horizontal, vertical, and inclined, with vertical airflow air separators being the most widely used.

[0003] In the tobacco manufacturing process, air separation devices are needed to separate tobacco shreds of different sizes. Current air separation devices for tobacco shreds have an overly simple structure. During the air separation process, they rely entirely on wind power to classify and separate the tobacco shreds. The energy consumption required by the equipment during the air separation process is relatively large, and it is not possible to perform one-time recycling of different types of tobacco shreds after air separation. The practicality of the device is poor.

[0004] Therefore, how to provide a device that can effectively perform air separation and one-time recycling of tobacco shreds of different sizes has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-stage air separation device for tobacco shreds to solve the problems mentioned in the background art.

[0006] According to one aspect of the present invention, a multi-stage air separation device for tobacco shreds is provided, comprising a main body, the main body comprising:

[0007] A receiving mechanism used for multiple air separations of tobacco shreds;

[0008] A wind separator mechanism, disposed within the housing, includes a first wind separator, a second wind separator, and a third wind separator, whose wind force and height decrease sequentially; and

[0009] A collection mechanism, which is disposed inside the receiving mechanism and located below the air separation mechanism, is used to collect the different tobacco shreds screened by the first air separator, the second air separator and the third air separator respectively.

[0010] Optionally, in the tobacco shreds multiple air separation device according to the present invention, the receiving mechanism includes an operation box, the operation box having an air separation chamber inside, the top of the air separation chamber being open, and the air separation mechanism being disposed inside the air separation chamber; the lower left end of the operation box has an opening, and the collecting mechanism can enter the air separation chamber along the opening.

[0011] Optionally, in the tobacco shreds multiple air separation device according to the present invention, the front end of the operation box is provided with an inner viewing port, and the inner viewing port is made of transparent resin.

[0012] Optionally, in the tobacco multiple air separation device according to the present invention, the first air separator is disposed at the upper right end of the air separation chamber;

[0013] The first air separator includes a first drive shaft and a first linkage shaft arranged symmetrically on the left and right sides, which are respectively rotatably connected to the inner side of the air separator cavity. A first conveyor belt is sleeved between the first drive shaft and the first linkage shaft. A first motor that drives the first drive shaft to rotate is also provided on the outer rear end of the operation box.

[0014] The first air separator also includes a first fan, the front and rear ends of which are fixedly connected to the inside of the air separator chamber and located below the first conveyor belt.

[0015] Optionally, in the tobacco multiple air separation device according to the present invention, the second air separator is disposed in the middle position inside the air separation chamber;

[0016] The second air separator includes a second drive shaft and a second linkage shaft arranged symmetrically on the left and right sides, which are respectively rotatably connected to the inner side of the air separator cavity. A second conveyor belt is sleeved between the second drive shaft and the second linkage shaft. A second motor that drives the second drive shaft to rotate is also provided on the outer rear end of the operation box.

[0017] The second air separator also includes a second fan, the front and rear ends of which are fixedly connected to the inside of the air separator chamber and located below the second conveyor belt.

[0018] Optionally, in the tobacco multiple air separation device according to the present invention, the third air separator is disposed at the lower left end of the air separation chamber;

[0019] The third air separator includes a third drive shaft and a third linkage shaft arranged symmetrically on the left and right sides. The two are rotatably connected to the inner side of the air separator cavity, and a third conveyor belt is sleeved between the third drive shaft and the third linkage shaft. A third motor for driving the third drive shaft to rotate is also provided on the outer rear end of the operation box.

[0020] The third air separator also includes a third fan, the front and rear ends of which are fixedly connected to the inside of the air separator cavity and located below the third conveyor belt.

[0021] Optionally, the tobacco shreds multiple air separation device according to the present invention further includes two sets of baffles fixedly connected to the inside of the air separation chamber, and the two sets of baffles are respectively disposed above the second conveyor belt and the third conveyor belt.

[0022] Optionally, in the tobacco shreds multiple air separation device according to the present invention, a filter screen is provided on the barrier plate, and filter holes for tobacco shreds to pass through are uniformly provided on the filter screen.

[0023] Optionally, the tobacco shreds multiple air separation device according to the present invention further includes three sets of guide plates connected to the inside of the air separation chamber. The three sets of guide plates are respectively disposed on the lower right side of the first conveyor belt, the second conveyor belt and the third conveyor belt, and the top ends of the three sets of guide plates are respectively in contact with the outer side of the first conveyor belt, the second conveyor belt and the third conveyor belt.

[0024] Optionally, in the tobacco multiple air separation device according to the present invention, the collecting mechanism includes a collecting box, which can extend into the interior of the operating box through an opening, and a pull handle is provided at the left end of the collecting box;

[0025] The interior of the collection box is evenly divided into a first collection chamber, a second collection chamber, a third collection chamber, and a fourth collection chamber by partitions, which are used to collect tobacco of different weights respectively.

[0026] Compared with existing technologies, the beneficial effects of this utility model are:

[0027] By setting up the main body of the equipment, during the air separation process, the tobacco shreds are automatically sorted into four different categories by using wind power combined with gravity falling. Compared with the traditional air separation device that uses pure wind power, the air separation of this invention requires less energy consumption, which is conducive to improving the economic benefits of enterprises. Furthermore, the collection mechanism enables one-time classification and recycling, resulting in better device performance, easier handling by users, and enhanced practicality of the device.

[0028] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0030] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the main structure of the device of the present invention;

[0032] Figure 3 This is a frontal half-section structural diagram of the present invention;

[0033] Figure 4 This is a schematic diagram of the rear structure of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Main body of the equipment; 2. Containing mechanism; 21. Control box; 211. Air separation chamber; 212. Opening; 214. Baffle plate; 2141. Filter screen; 215. Guide plate; 216. Internal viewing port;

[0036] 3. Air separation mechanism; 31. First air separator; 311. First conveyor belt; 312. First drive shaft; 313. First linkage shaft; 314. First fan; 315. First motor;

[0037] 32. Second fan assembly; 321. Second conveyor belt; 322. Second drive shaft; 323. Second linkage shaft; 324. Second fan; 325. Second motor;

[0038] 33. Third fan component; 331. Third conveyor belt; 332. Third drive shaft; 333. Third linkage shaft; 334. Third fan; 335. Third motor;

[0039] 4. Collection mechanism; 41. Collection box; 411. Partition; 42. First collection chamber; 43. Second collection chamber; 44. Third collection chamber; 45. Fourth collection chamber; 46. Pull handle. Detailed Implementation

[0040] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0041] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0042] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0043] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0044] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0045] according to Figures 1 to 4 As shown, the present invention provides a multi-stage air separation device for tobacco shreds, including a main body 1, the main body 1 comprising:

[0046] The receiving mechanism 2 is used for multiple air separations of tobacco shreds;

[0047] The air separation mechanism 3, located inside the receiving mechanism 2, includes a first air separator 31, a second air separator 32, and a third air separator 33, whose airflow strength and height decrease sequentially. A collection mechanism 4, located inside the receiving mechanism 2 and below the air separation mechanism 3, collects the different tobacco shreds separated by the first air separator 31, the second air separator 32, and the third air separator 33. In practice, the air separation mechanism 3 uses different airflow strengths to separate the tobacco shreds based on their weight. The airflow strength and height from the ground of the first air separator 31, second air separator 32, and third air separator 33 decrease sequentially. Tobacco shreds separated by the first air separator 31 fall stably onto the second air separator 32 and are separated again by the second air separator 32, and so on, finally being separated by the third air separator 33. The air separation mechanism 3 is tightly connected, ensuring thorough separation.

[0048] Furthermore, the receiving mechanism 2 includes an operation box 21, inside which is an air separation chamber 211. The top of the air separation chamber 211 is open, and the air separation mechanism 3 is disposed inside the air separation chamber 211. An opening 212 is provided at the lower left end of the operation box 21, through which the collection mechanism 4 can enter the air separation chamber 211. In implementation, the top of the air separation chamber 211 is open to facilitate placing the tobacco raw material on the first air separation component 31. The opening 212 at the lower left end is similar to a drawer structure, through which the collection mechanism 4 can be pulled out or pushed in to facilitate the removal of the uniformly collected tobacco.

[0049] Furthermore, the front end of the control box 21 is provided with an internal viewing port 216, which is made of transparent resin, making it convenient for users to observe the internal air separation conditions and enhancing the practicality of the device.

[0050] Furthermore, the first air separator 31 is located at the upper right end of the air separator cavity 211; the first air separator 31 includes a first drive shaft 312 and a first linkage shaft 313 symmetrically arranged on the left and right sides, which are respectively rotatably connected to the inner side of the air separator cavity 211, and a first conveyor belt 311 is sleeved between the first drive shaft 312 and the first linkage shaft 313. A first motor 315 for driving the first drive shaft 312 to rotate is also provided on the outer rear end of the operation box 21; the first air separator 31 also includes a first fan 314, the front and rear ends of the first fan 314 are fixedly connected to the inner side of the air separator cavity 211 and located below the first conveyor belt 311.

[0051] During implementation, the first motor 315 drives the first drive shaft 312 and the first conveyor belt 311 to rotate. The tobacco raw material falls at the end of the conveyor belt 311 as it rotates. At this time, the airflow direction of the first fan 314 is opposite to the transmission direction of the first conveyor belt 311. The first fan 314 blows a portion of the falling tobacco towards the second air separator 32. This portion of tobacco falls because its own falling weight is less than the airflow force of the first fan 314. The remaining portion of tobacco, whose own falling weight is greater than the airflow force of the first fan 314, falls into the collection mechanism 4 under the influence of gravity.

[0052] Furthermore, the second air separator 32 is located in the middle of the air separator cavity 211. The second air separator 32 includes a second drive shaft 322 and a second linkage shaft 323 symmetrically arranged on the left and right sides, which are respectively rotatably connected to the inner side of the air separator cavity 211. A second conveyor belt 321 is sleeved between the second drive shaft 322 and the second linkage shaft 323. A second motor 325 for driving the second drive shaft 322 to rotate is also provided on the outer rear end of the control box 21. The second air separator 32 also includes a second fan 324. The front and rear ends of the second fan 324 are fixedly connected to the inner side of the air separator cavity 211 and located below the second conveyor belt 321.

[0053] During implementation, the second motor 325 drives the second drive shaft 322 and the second conveyor belt 321 to rotate. The tobacco shreds that have undergone initial screening fall at the end as the second conveyor belt 321 rotates. At this time, the airflow direction of the second fan 324 is opposite to the transmission direction of the second conveyor belt 321. The second fan 324 blows some of the falling tobacco shreds towards the third air separator 33. This part of the tobacco shreds falls because its own falling weight is less than the airflow force of the second fan 324. The other part of the tobacco shreds, whose own falling weight is greater than the airflow force of the second fan 324, falls into the collection mechanism 4 under the action of gravity.

[0054] Furthermore, the third air separator 33 is located at the lower left end of the air separator cavity 211; the third air separator 33 includes a third drive shaft 332 and a third linkage shaft 333 symmetrically arranged on the left and right sides, which are respectively rotatably connected to the inner side of the air separator cavity 211, and a third conveyor belt 331 is sleeved between the third drive shaft 332 and the third linkage shaft 333. A third motor 335 for driving the third drive shaft 332 to rotate is also provided on the outer rear end of the control box 21; the third air separator 33 also includes a third fan 334, the front and rear ends of which are fixedly connected to the inner side of the air separator cavity 211 and located below the third conveyor belt 331.

[0055] During implementation, the third motor 335 drives the third drive shaft 332 and the third conveyor belt 331 to rotate. The tobacco shreds that have been screened again fall at the end as the third conveyor belt 331 rotates. At this time, the wind direction of the third fan 334 is opposite to the transmission direction of the third conveyor belt 331. The third fan 334 performs the final screening of some of the falling tobacco shreds. Regardless of whether the falling gravity of the tobacco shreds is greater than or less than the wind force of the second fan 324, they will fall into the collection mechanism 4 under the action of gravity. However, they will fall into different points in the collection mechanism 4 due to the difference in gravity.

[0056] Furthermore, it also includes two sets of baffle plates 214 fixedly connected to the inside of the air separation chamber 211, and the two sets of baffle plates 214 are respectively disposed above the second conveyor belt 321 and the third conveyor belt 331, for the purpose of blocking the tobacco shreds during air separation. In implementation, during the first air separation, in order to ensure the air separation effect and prevent the first fan 314 from directly blowing the tobacco shreds towards the third air separation component 33, the baffle plates 214 can play a sufficient isolation role; in addition, there are gaps between the baffle plates 214 and the second conveyor belt 321 and the third conveyor belt 331, which allow the tobacco shreds to pass through.

[0057] Furthermore, a filter screen 2141 is provided on the baffle plate 214. The filter screen 2141 is evenly provided with filter holes for tobacco to pass through, which is beneficial for tobacco, whose own weight is much less than the wind force of the fan, to pass through the baffle plate 214.

[0058] Furthermore, it also includes three sets of guide plates 215 connected to the inner side of the air separation chamber 211. The three sets of guide plates 215 are respectively disposed on the lower right side of the first conveyor belt 311, the second conveyor belt 321, and the third conveyor belt 331, and the top ends of the three sets of guide plates 215 are in contact with the outer sides of the first conveyor belt 311, the second conveyor belt 321, and the third conveyor belt 331, respectively. The guide plates 215 are made of polyurethane, which is soft and wear-resistant. While playing a guiding role, polyurethane scrapes off the tobacco shreds that are electrostatically adsorbed on the outer sides of the first conveyor belt 311, the second conveyor belt 321, and the third conveyor belt 331, ensuring the normal operation of the first conveyor belt 311, the second conveyor belt 321, and the third conveyor belt 331.

[0059] Furthermore, the collection mechanism 4 includes a collection box 41, which extends into the interior of the operation box 21 through an opening 212, and a pull handle 46 is provided at the left end of the collection box 41 for easy removal by the user. The interior of the collection box 41 is evenly divided into a first collection chamber 42, a second collection chamber 43, a third collection chamber 44, and a fourth collection chamber 45 by a partition 411, for sorting and recycling tobacco of different weights.

[0060] This invention, through the design of the main body 1, allows the user to pour the tobacco to be air-separated into the first air separator 31 in one go. A first motor 315 drives a first conveyor belt 311 to rotate, moving the tobacco from right to left. Upon reaching the end of the first conveyor belt 311, the tobacco falls under gravity. During this fall, a first fan 314 blows the tobacco, directing the lighter tobacco to the second air separator 32, while the heavier tobacco falls freely into the first collection chamber 42 on the collection box 41. After the lighter tobacco enters the second air separator 32, a second motor 325 drives a second conveyor belt 321 to rotate, moving the tobacco from right to left. Upon reaching the end of the second conveyor belt 321, the tobacco falls under gravity. During this fall, a second fan 324 blows the tobacco, directing the lighter tobacco to the third air separator 33, while the heavier tobacco falls freely into the second collection chamber 43 on the collection box 41. Lighter tobacco shreds enter the third air separator 33, where the third motor 335 drives the third conveyor belt 331 to rotate. The tobacco shreds move from right to left along the third conveyor belt 331, and fall to the end of the third conveyor belt 331 due to gravity. During the fall, the third fan 334 blows the tobacco shreds, moving the lighter tobacco shreds to a farther position and causing them to fall into the fourth collection chamber 45, while the heavier tobacco shreds fall freely into the third collection chamber 44. The air separator 3 is composed of a first air separator 31, a second air separator 32, and a third air separator 33 arranged at a uniform angle. During the air separator process, the tobacco shreds are automatically sorted into four different categories by combining wind power with gravity. Compared with traditional air separators that rely solely on wind power, this invention requires less energy, which is beneficial to improving the economic efficiency of enterprises. Furthermore, the collection mechanism 4 enables one-time sorting and recycling, resulting in better device performance, easier handling by users, and enhanced practicality of the device.

[0061] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A multi-stage air separation device for tobacco shreds, comprising a main body of the device, characterized in that, The main body of the device includes: A receiving mechanism used for multiple air separations of tobacco shreds; A wind separator mechanism, disposed within the housing, includes a first wind separator, a second wind separator, and a third wind separator, whose wind force and height decrease sequentially; and A collection mechanism is disposed inside the receiving mechanism and located below the air separation mechanism, for collecting different tobacco shreds screened by the first air separator, the second air separator and the third air separator respectively; The receiving mechanism includes an operating box, inside which is an air separation chamber. The top of the air separation chamber is open, and the air separation mechanism is disposed inside the air separation chamber. An opening is provided at the lower left end of the operating box, and the collecting mechanism can enter the air separation chamber through the opening. The front end of the control box is provided with an internal viewing port, and the internal viewing port is made of transparent resin. The first air separator is located at the upper right end of the air separator cavity; The first air separator includes a first drive shaft and a first linkage shaft arranged symmetrically on the left and right sides, which are respectively rotatably connected to the inner side of the air separator cavity. A first conveyor belt is sleeved between the first drive shaft and the first linkage shaft. A first motor that drives the first drive shaft to rotate is also provided on the outer rear end of the operation box. The first air separator also includes a first fan, the front and rear ends of which are fixedly connected to the inside of the air separator chamber and located below the first conveyor belt; It also includes two sets of baffles fixedly connected to the inside of the air separation chamber; The barrier plate is equipped with a filter screen, and the filter screen is evenly provided with filter holes for tobacco to pass through.

2. The tobacco shreds multiple air separation device according to claim 1, characterized in that, The second air separator is located in the middle of the air separator cavity; The second air separator includes a second drive shaft and a second linkage shaft arranged symmetrically on the left and right sides, which are respectively rotatably connected to the inner side of the air separator cavity. A second conveyor belt is sleeved between the second drive shaft and the second linkage shaft. A second motor that drives the second drive shaft to rotate is also provided on the outer rear end of the operation box. The second air separator also includes a second fan, the front and rear ends of which are fixedly connected to the inside of the air separator chamber and located below the second conveyor belt.

3. The tobacco shreds multiple air separation device according to claim 2, characterized in that: The third air separator is located at the lower left end of the air separator cavity; The third air separator includes a third drive shaft and a third linkage shaft arranged symmetrically on the left and right sides. The two are rotatably connected to the inner side of the air separator cavity, and a third conveyor belt is sleeved between the third drive shaft and the third linkage shaft. A third motor for driving the third drive shaft to rotate is also provided on the outer rear end of the operation box. The third air separator also includes a third fan, the front and rear ends of which are fixedly connected to the inside of the air separator cavity and located below the third conveyor belt.

4. The tobacco shreds multiple air separation device according to claim 3, characterized in that, The two sets of barrier plates are respectively disposed above the second conveyor belt and the third conveyor belt.

5. The tobacco shreds multiple air separation device according to claim 4, characterized in that, It also includes three sets of guide plates connected to the inside of the air separation chamber. The three sets of guide plates are respectively disposed on the lower right side of the first conveyor belt, the second conveyor belt and the third conveyor belt, and the top of the three sets of guide plates are respectively in contact with the outer side of the first conveyor belt, the second conveyor belt and the third conveyor belt.

6. The tobacco shreds multiple air separation device according to claim 1, characterized in that, The collection mechanism includes a collection box that extends into the interior of the operation box through an opening, and a pull handle is provided at the left end of the collection box; The interior of the collection box is evenly divided into a first collection chamber, a second collection chamber, a third collection chamber, and a fourth collection chamber by partitions, which are used to collect tobacco of different weights respectively.

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