A nicotine concentration device and method

Abstract

The present invention relates to the technical field of nicotine distillation and extraction, and specifically provides a nicotine preparation and concentration device and method, comprising a first tank body and a second tank body, wherein a plurality of first distillation tubes are arranged in the first tank body, a plurality of second distillation tubes are rotatably arranged in the second tank body, and a bellows is connected to the second distillation tube, and a sliding plate is connected to the other end of the bellows, and a driving component is arranged in the second tank body, the driving component drives the sliding plate to move back and forth and then drives the bellows to expand and contract, so that evaporated low-boiling point impurities are quickly squeezed out of the second distillation tube, thereby preventing the low-boiling point impurity gas from being integrated into the nicotine liquid, thereby improving the nicotine extraction efficiency, and when the second distillation tube rotates, the nicotine liquid passing through is subjected to centrifugal force and evenly distributed on the inner wall of the second distillation tube, so that the nicotine liquid can be heated evenly, thereby improving the nicotine liquid distillation and extraction effect.

Description

Technical Field

[0001] The invention relates to the technical field of nicotine distillation and extraction, and in particular to a nicotine concentration device and method for preparing nicotine. Background Art

[0002] Nicotine distillation extraction technology has a long history of development in the fields of tobacco processing and phytochemistry. It is mainly used to separate and extract high-purity nicotine from tobacco leaves or other plant materials containing nicotine. The distillation extraction technology relies on the volatility of nicotine and concentrates and purifies nicotine through heating and condensation. It is widely used in the industrial process of nicotine production.

[0003] In the prior art, when nicotine is concentrated and distilled, impurities with higher and lower boiling points are generally separated from the impurities in the nicotine by distillation, so as to retain the nicotine. Among them, the most important separation element is the falling film evaporator. The falling film evaporator relies on the flow of nicotine, and the nicotine will not adhere well to the inside of the evaporation tube, resulting in the nicotine being unable to cover the entire surface of the evaporation tube. In addition, when the low-boiling point impurities are evaporated, the evaporated steam will hit the nicotine mixed liquid that has not been completely heated at the upper end, causing the low-boiling point impurity steam to re-enter the nicotine raw material, affecting the separation efficiency. Summary of the invention

[0004] Based on this, it is necessary to provide a nicotine concentration device and method for preparing nicotine in order to solve the problems that the current nicotine distillation effect is poor and the separation efficiency is low when separating low-boiling point impurities.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A nicotine concentration device for preparing nicotine, comprising:

[0007] A first tank body, wherein a plurality of first distillation tubes are vertically arranged in the first tank body, the plurality of first distillation tubes divide the first tank body into a first chamber and a second chamber distributed vertically, and the plurality of first distillation tubes connect the first chamber and the second chamber;

[0008] A second tank body, wherein a plurality of second distillation tubes are vertically arranged in the second tank body, the plurality of second distillation tubes are connected to a bellows, a sliding plate is arranged on the other end of the plurality of bellows, the sliding plate and the plurality of second distillation tubes separate the first tank body into a third chamber and a fourth chamber distributed vertically, the plurality of second distillation tubes and the bellows are connected to the third chamber and the fourth chamber, and the first chamber is connected to the fourth chamber;

[0009] The nicotine liquid flows sequentially through the third chamber, a plurality of second distillation tubes, a plurality of bellows, a fourth chamber, a first chamber, a plurality of first distillation tubes, and a second chamber;

[0010] A steam generator capable of delivering steam to the outer peripheries of the plurality of first distillation tubes, the second distillation tubes, and the bellows to heat the plurality of first distillation tubes, the second distillation tubes, and the bellows;

[0011] A driving assembly is provided, wherein the driving assembly can drive the sliding plate to move back and forth along the axial direction of the second tank body, and the sliding plate drives a plurality of bellows to reciprocate and extend.

[0012] Furthermore, the driving assembly includes a rotating shaft, which is rotatably connected to the axis of the second tank body, and is bidirectionally threadedly connected to the sliding plate. The rotation of the rotating shaft drives the sliding plate to axially reciprocate.

[0013] Furthermore, the driving assembly also includes a rotating blade, which is coaxial and fixedly connected to the rotating shaft. A baffle is provided in the third chamber, and the baffle divides the fourth chamber into a driving chamber and a liquid inlet chamber distributed up and down. The rotating blade is located in the driving chamber, and the driving chamber is connected to the steam generator. Steam passes through the driving chamber to blow the rotating blade to rotate.

[0014] Furthermore, the driving cavity is communicated with cavities outside a plurality of second distillation tubes.

[0015] Furthermore, a transmission assembly is provided in the second tank body, and the transmission assembly can drive a plurality of second distillation tubes to rotate around their own axes.

[0016] Furthermore, the transmission assembly includes a first transmission gear and a second transmission gear, the first transmission gear is coaxial and fixedly arranged on the rotating shaft, the second transmission gear is coaxial and fixedly arranged on the upper ends of a plurality of second distillation tubes, and the first transmission gear is meshed with the plurality of second transmission gears.

[0017] Furthermore, a liquid inlet is provided below the connection between the second distillation tube and the second transmission gear.

[0018] Furthermore, the bellows and the second distillation tube are rotatably sealed and connected.

[0019] Furthermore, a suction pump is provided between the first chamber and the fourth chamber, and the suction pump pumps the nicotine liquid in the fourth chamber into the first chamber.

[0020] The present invention also provides a nicotine concentration method for preparing the nicotine, comprising at least the following steps:

[0021] S100: pre-treating the nicotine liquid to be distilled and extracted;

[0022] S200: passing the nicotine liquid into the second tank to remove low boiling point impurities;

[0023] S300: the nicotine liquid in the second tank body passes through the first tank body to remove high boiling point impurities;

[0024] S400: collecting the extracted nicotine.

[0025] The beneficial effects of the present invention are:

[0026] The present invention arranges a bellows, a sliding plate and a driving assembly on the second distillation tube in the second tank body. The driving assembly drives the sliding plate to move back and forth, thereby driving the bellows to reciprocate and expand and contract, so that evaporated low-boiling point impurities are quickly squeezed out of the second distillation tube, thereby preventing the low-boiling point impurity gas from being integrated into the nicotine liquid, thereby improving the efficiency of nicotine extraction. At the same time, the tube wall of the bellows increases the heating area of ​​the nicotine liquid and improves the evaporation rate of the nicotine liquid.

[0027] The present invention provides a rotatable second distillation tube. When the second distillation tube rotates, the nicotine liquid passing through is subjected to centrifugal force and evenly distributed on the inner wall of the second distillation tube, so that the nicotine liquid can be heated evenly, thereby improving the distillation and extraction effect of the nicotine liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the structure of a nicotine concentration device provided in one embodiment of the present invention;

[0029] Figure 2 for Figure 1 A left side view of a nicotine concentration device provided in an embodiment;

[0030] Figure 3 for Figure 2 An axonometric view of a nicotine concentration device provided in an embodiment of the present invention taken along the AA line;

[0031] Figure 4 for Figure 3 A partial enlarged view of part X of a nicotine preparation concentration device provided in an embodiment;

[0032] Figure 5 for Figure 3 A partial enlarged view of part Y of a nicotine preparation concentration device provided in an embodiment;

[0033] Figure 6 A schematic diagram of the structure of the interior of a second tank of a nicotine preparation concentration device provided in one embodiment of the present invention;

[0034] Figure 7 for Figure 6 A partial enlarged view of part Z of a nicotine concentration device for preparing nicotine provided in an embodiment.

[0035] in:

[0036] 100, first tank body; 110, first distillation tube; 120, first baffle; 130, second baffle; 140, first chamber; 150, second chamber; 151, high boiling point liquid discharge port; 160, connecting pipe; 170, suction pump;

[0037] 200, second tank body; 210, second distillation tube; 211, liquid inlet; 220, third partition plate; 230, bellows; 240, sliding plate; 241, rotating groove; 242, shuttle block; 250, third chamber; 251, baffle; 252, driving chamber; 253, liquid inlet chamber; 254, feed inlet; 255, low boiling point gas outlet; 256, steam delivery pipe; 260, fourth chamber; 270, steam outlet;

[0038] 300, rotating shaft; 301, bidirectional thread groove; 310, rotating blade; 320, first transmission gear; 330, second transmission gear;

[0039] 400, steam generator; 410, output pipeline;

[0040] 500. Condenser; 510. Discharge port. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0043] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] Refer to the following Figure 1-Figure 7 A nicotine concentration device for preparing nicotine provided by the present invention is described below.

[0045] A nicotine preparation concentration device is suitable for distillation extraction of nicotine, comprising a first tank body 100 and a second tank body 200. A plurality of first distillation tubes 110 are vertically arranged in the first tank body 100. Both ends of the plurality of first distillation tubes 110 are respectively connected to a first partition 120 and a second partition 130. The plurality of first distillation tubes 110 divide the first tank body 100 into a first chamber 140 and a second chamber 150 distributed vertically. The plurality of first distillation tubes 110 connect the first chamber 140 and the second chamber 150. A plurality of second distillation tubes 210 are vertically arranged in the second tank body 200, the upper ends of the plurality of rotating plates are connected to the third partition plate 220, the lower ends of the plurality of second distillation tubes 210 are respectively connected to a plurality of bellows 230, and the other end of the bellows 230 is connected to a sliding plate 240, the outer periphery of the sliding plate 240 is in sliding and sealing contact with the inner wall of the second tank body 200, the plurality of second distillation tubes 210 and the sliding plate 240 divide the second tank body 200 into a third chamber 250 and a fourth chamber 260 distributed up and down, the plurality of second distillation tubes 210 and the plurality of bellows 230 connect the third chamber 250 and the fourth chamber 260, a connecting pipe 160 is connected to the side wall corresponding to the fourth chamber 260 of the second tank body 200, the other end of the connecting pipe 160 is connected to the side wall corresponding to the first chamber 140 of the first tank body 100, and the connecting pipe 160 connects the first chamber 140 and the fourth chamber 260.

[0046] The flow direction of the nicotine liquid to be distilled and purified in the first tank body 100 and the second tank body 200 is:

[0047] The third chamber 250 , a plurality of second distillation tubes 210 , a plurality of bellows 230 , a fourth chamber 260 , a first chamber 140 , a plurality of first distillation tubes 110 , and a second chamber 150 .

[0048] A steam generator 400 is arranged on the outside of the first tank body 100. The output pipe 410 of the steam generator 400 is connected to the side walls of the first tank body 100 corresponding to the first distillation tubes 110. The hot steam generated by the steam generator 400 enters the first tank body 100 through the output pipe 410 and surrounds the outer circumference of the first distillation tubes 110. The hot steam heats the first distillation tubes 110. A steam delivery pipe 256 is connected to the side walls of the corresponding second distillation tubes 210 and the bellows 230 on the second tank body 200. The hot steam in the first tank body 100 enters the second tank body 200 through the steam delivery pipe 256 and surrounds the second distillation tubes 210 and the bellows 230. The hot steam heats the second distillation tubes 210 and the bellows 230. A steam outlet 270 is opened on the second tank body 200, and the steam is discharged from the steam outlet 270. The steam is continuously input and output to ensure the heating effect of the hot steam on the first distillation tube 110 and the second distillation tube 210.

[0049] The steam generator 400 is provided to heat the plurality of first distillation tubes 110, the second distillation tubes 210 and the bellows 230, so that the low boiling point impurities (low boiling point impurities refer to other impurities with a boiling point lower than the boiling point of nicotine, and the temperature of the second distillation tubes 210 and the bellows 230 heated by the steam generator 400 is lower than the evaporation temperature of nicotine, so the low boiling point impurities can be evaporated without affecting the nicotine) in the nicotine liquid passing through the second distillation tubes 210 and the bellows 230 can evaporate, and the remaining solution enters the fourth chamber 260. The nicotine liquid entering the fourth chamber 260 enters the first chamber 140 through the connecting pipe 160. The nicotine liquid passes through the plurality of first distillation tubes 110 (the first distillation tubes 1 10 is higher than the temperature when nicotine evaporates, that is, higher than the boiling point of nicotine), the gas after the nicotine is evaporated floats on the first chamber 140, a condenser 500 is arranged on the outside of the first tank body 100, the condenser 500 is connected to the first chamber 140, the gas in the first chamber 140 enters the condenser 500, the nicotine gas is liquefied into liquid after condensation by the condenser 500, a discharge port 510 is opened on the condenser 500, the liquid is discharged from the discharge port 510, and the remaining liquid is a high-boiling-point liquid, which enters the second chamber 150, and a high-boiling-point liquid discharge port 151 is opened on the side wall of the second chamber 150, and the remaining liquid is discharged from the first tank body 100 through the high-boiling-point liquid discharge port 151.

[0050] It should be noted that the initial temperature of the steam generated by the steam generator 400 is higher than the boiling point of nicotine, and one end of the steam generator 400 for inputting steam is located on the first tank body 100, so the temperature of the steam when entering the first tank body 100 can still be higher than the boiling point of nicotine. However, the temperature of the steam passing through the first tank body 100 and entering the second tank body 200 will gradually decrease due to steam transportation factors and external factors. When reaching the second distillation tubes 210, the temperature is already lower than the boiling point of nicotine. Therefore, the second distillation tubes 210 can separate the low-boiling-point impurities in the nicotine liquid.

[0051] If the temperature of the second distillation tube 210 is to be lower than the temperature of the first distillation tube 110, the temperature can be adjusted multiple times to find a suitable temperature to ensure that the temperature of the first distillation tube 110 is higher than the boiling point of nicotine and the temperature of the second distillation tube 210 is lower than the boiling point of nicotine. Of course, additional equipment can also be used to achieve the above function, such as using two steam generators 400 to connect the first tank body 100 and the second tank body 200 respectively to adjust the temperatures of the two respectively, which is not specifically limited here.

[0052] It can be understood that if the temperature of the first distillation tube 110 is closer to the boiling point of nicotine and higher than the boiling point, it is possible to avoid high-boiling point impurities with similar boiling point to nicotine being mixed into the nicotine vapor. Similarly, if the temperature of the second distillation tube 210 is closer to the boiling point of nicotine and lower than the boiling point, it is possible to avoid low-boiling point impurities with similar boiling point to nicotine being mixed into the nicotine liquid. Therefore, the temperature of the first distillation tube 110 is controlled as close to the boiling point of nicotine and higher than the boiling point, and the temperature of the second distillation tube 210 is controlled as close to the boiling point of nicotine and lower than the boiling point, so that the purity of the nicotine extracted by distillation is higher.

[0053] The second tank body 200 is provided with a driving assembly, which can drive the sliding plate 240 to reciprocate along the axial direction of the second tank body 200, so that the bellows 230 connected to the sliding plate 240 can reciprocate and retract. When the bellows 230 is shortened, the volume in the bellows 230 is reduced. When the volume is reduced, the steam of low-boiling impurities can be quickly squeezed out of the second distillation tube 210 to prevent the steam of boiling impurities from being affected by the nicotine liquid (the temperature of the nicotine liquid is low when it just enters the second tank body 200, and the steam of low-boiling impurities may be integrated into the nicotine liquid after being in contact with the nicotine liquid for a long time). If it is integrated into the nicotine liquid, it needs to evaporate again, thereby reducing the extraction efficiency. Therefore, the bellows 230 is shortened to quickly squeeze out the low-boiling impurities, thereby reducing the time for the steam of low-boiling impurities to contact the nicotine liquid, and preventing the steam of low-boiling impurities from re-integrating into the nicotine liquid. The second tank body 200 is provided with a low-boiling gas discharge port 255, and the gas can be quickly discharged to prevent the above phenomenon from occurring and improve the extraction efficiency.

[0054] At the same time, when the bellows 230 is used, the effective area of ​​the nicotine liquid distributed on the inner wall of the bellows 230 to be evaporated increases. Compared with a straight tube, the bellows 230 of the same length has a tortuous wall, so more nicotine liquid is distributed on the inner wall of the bellows 230, so the area of ​​the nicotine liquid being heated increases, thereby improving the evaporation efficiency of the nicotine liquid.

[0055] Specifically, the driving assembly in the embodiment of the present invention includes a rotating shaft 300, which is rotatably arranged at the axis of the second tank body 200 and is specifically rotatably connected to the third partition plate 220. The rotating shaft 300 can only rotate in the second tank body 200 and cannot move axially. A bidirectional thread groove 301 is arranged on the outer periphery of the rotating shaft 300, and a rotating groove 241 is opened at the axis center of the sliding plate 240. A shuttle block 242 is hinged on the inner side wall of the rotating groove 241. The rotating shaft 300 is inserted into the rotating groove 241, and the shuttle block 242 is slidably located in the bidirectional thread groove 301. When the rotating shaft 300 rotates, it can drive the sliding plate 240 to move back and forth along the axial direction of the second tank body 200, so that the sliding plate 240 drives the bellows 230 to reciprocate and extend.

[0056] It should be noted that the length of the bidirectional thread groove 301 arranged on the outer circumference of the rotating shaft 300 is relatively short, and the length of the bidirectional thread groove 301 should be adapted according to the length of the bellows 230 .

[0057] More specifically, the driving assembly further includes a rotating blade 310, which is coaxially and fixedly disposed on the rotating shaft 300. The present invention drives the rotating shaft 300 to rotate by driving the rotating blade 310, and driving the rotating blade 310 to rotate is achieved by the following structure:

[0058] A baffle 251 is provided in the third chamber 250, and the baffle 251 divides the third chamber 250 into a driving chamber 252 and a liquid inlet chamber 253 distributed up and down. The rotating blade 310 is located in the driving chamber 252. The steam delivery pipe 256 connected to the side wall corresponding to the driving chamber 252 of the second tank body 200 is connected to the first tank body 100, so that the steam of the first tank body 100 enters the driving chamber 252 through the steam delivery pipe 256. The steam flow blows the rotating blade 310 to rotate, and the rotating blade 310 drives the rotating shaft 300 to rotate, and the rotating shaft 300 drives the sliding plate 240 to slide reciprocatingly axially.

[0059] It should be noted that there are many other structures that can achieve the above functions, such as directly using motor drive or other structures, which are not specifically limited here.

[0060] The rotation of the rotating blades 310 is achieved through the flow of steam, and the rotating blades 310 drive the rotating shaft 300 to rotate, and the rotating shaft 300 drives the sliding plate 240 and the bellows 230, thereby reducing energy consumption and improving energy utilization.

[0061] Specifically, the driving chamber 252 is connected to the cavities outside the second distillation tubes 210 by connecting the driving chamber 252 and the cavities outside the second distillation tubes 210 through a steam delivery pipe 256, so that the steam can heat the second distillation tubes 210 and drive the rotating blades 310 to rotate.

[0062] In a further embodiment, a transmission assembly is further provided in the second tank body 200, and the transmission assembly can drive the plurality of second distillation tubes 210 to rotate around its own axis, so that the nicotine liquid in the plurality of second distillation tubes 210 can be evenly distributed on the inner walls of the plurality of second distillation tubes 210 due to centrifugal force, so that the nicotine liquid is evenly heated, thereby better evaporating the low boiling point impurities in the nicotine liquid, and improving the removal rate of the low boiling point impurities in the nicotine liquid.

[0063] Specifically, the transmission assembly includes a first transmission gear 320 and a second transmission gear 330. There is one first transmission gear 320, which is coaxially and fixedly connected to the rotating shaft 300. There are multiple second transmission gears 330, which are coaxially and fixedly arranged on the upper ends of multiple second distillation tubes 210. The second transmission gear 330 is meshed with the first transmission gear 320. When the rotating shaft 300 rotates, it can drive the first transmission gear 320 to rotate, and the first transmission gear 320 drives the second transmission gear 330 to rotate. The second transmission gear 330 drives the second distillation tube 210 to rotate, so that the nicotine liquid in the second distillation tube 210 is evenly distributed on the inner wall of the second distillation tube 210.

[0064] It should be noted that, in this embodiment, the first transmission gear 320 is located at the axis of the second tank body 200, and a plurality of second distillation tubes 210 are arranged in circles along the circumference of the second tank body 200, so the second transmission gears 330 on the first circle of second distillation tubes 210 closest to the first transmission gear 320 rotate with the first transmission gear 320, and the second transmission gears 330 in the second circle are meshed with the second transmission gears 330 in the first circle. Similarly, the subsequent third circle and Nth circle are meshed with the second transmission gear 330 in the previous circle, thereby enabling all the second distillation tubes 210 to rotate.

[0065] Specifically, the first transmission gear 320 and the second transmission gear 330 are both located in the liquid inlet chamber 253. A feed port 254 is provided on the side wall of the second tank body 200 corresponding to the liquid inlet chamber 253. The nicotine liquid to be distilled and extracted enters the liquid inlet chamber 253 from the feed port 254. A liquid inlet 211 is provided below the connection between the second distillation tube 210 and the second transmission gear 330. The nicotine liquid enters into the plurality of second distillation tubes 210 through the second liquid inlet 211. The low-boiling-point gas discharge port 255 is also provided on the side wall of the liquid inlet chamber 253, but the height of the low-boiling-point gas discharge port 255 is higher than the height of the feed port 254.

[0066] It should be noted that, since the plurality of second distillation tubes 210 are capable of self-rotation, one end of the connection between the second distillation tube 210 and the bellows 230 is configured as a rotating sealed connection, thereby enabling the self-rotation of the second distillation tube 210 without affecting the expansion and contraction of the bellows 230, and at the same time, ensuring that the connection between the two is leak-free.

[0067] In a further embodiment, a suction pump 170 is provided between the first chamber 140 and the fourth chamber 260, and both ends of the suction pump 170 are connected to the connecting pipe 160. Since the first tank body 100 and the second tank body 200 have the same height, and the height of the first chamber 140 is higher than that of the fourth chamber 260, the suction pump 170 can pump the nicotine liquid in the fourth chamber 260 into the first chamber 140, thereby ensuring that the nicotine liquid continues to be distilled and extracted.

[0068] Of course, it is understandable that in other embodiments, if the height of the first chamber 140 is lower than that of the fourth chamber 260 , the suction pump 170 does not need to be provided.

[0069] The specific working process of a nicotine concentration device provided by the present invention is described in combination with the above embodiments:

[0070] Steam inlet:

[0071] The steam generator 400 is started. The steam generated by the steam generator 400 enters the first tank body 100 through the output pipe 410 and surrounds the plurality of first distillation tubes 110. The steam heats the plurality of first distillation tubes 110. The temperature of the first distillation tubes 110 is higher than the boiling point of nicotine. The steam enters the second tank body 200 through the steam delivery pipe 256. The steam first passes through the driving chamber 252 in the second tank body 200. The flow of the steam drives the rotating blades 310 in the driving chamber 252 to rotate. The rotating blades 310 drive the rotating shaft 300 to rotate. The bidirectional screw on the rotating shaft 300 rotates. The groove 301 drives the sliding plate 240 to reciprocate along the axial direction of the second tank body 200, and the sliding plate 240 drives the plurality of bellows 230 to expand and contract. At the same time, the first transmission gear 320 on the rotating shaft 300 drives the second transmission gear 330 to rotate, and the second transmission gear 330 drives the second distillation tube 210 to rotate around its own axis. Then, steam surrounds the plurality of second distillation tubes 210 and the plurality of bellows 230 to heat the second distillation tubes 210 and the bellows 230, and the heating temperature is lower than the boiling point of nicotine. Finally, the steam is discharged from the steam outlet 270 on the second tank body 200.

[0072] Add nicotine liquid:

[0073] The nicotine liquid to be distilled and extracted is introduced from the feed port 254 of the second tank body 200, and the nicotine liquid enters the liquid inlet chamber 253 of the second tank body 200, and the nicotine liquid enters the second distillation tube 210 through the liquid inlet 211 on the second distillation tube 210. Since the second distillation tube 210 rotates, the nicotine liquid entering the second distillation tube 210 is evenly distributed on the inner wall of the second distillation tube 210, and the low-boiling-point impurities in the nicotine liquid are evaporated. The bellows 230 reciprocates and expands and contracts to quickly squeeze the low-boiling-point impurity vapor out of the second distillation tube 210, and the low-boiling-point impurity vapor is discharged from the low-boiling-point gas discharge port 255 on the liquid inlet chamber 253.

[0074] The remaining liquid enters the fourth chamber 260. The suction pump 170 pumps the nicotine liquid in the fourth chamber 260 into the first chamber 140. The liquid passes through a plurality of first distillation tubes 110. Since the temperature of the first distillation tubes 110 is higher than the boiling point of nicotine, the nicotine in the nicotine liquid is vaporized into gas and floats above the first chamber 140. At this time, the condenser 500 sucks the gas into the condenser 500. The condenser 500 liquefies the nicotine gas into liquid and discharges it from the discharge port 510 of the condenser 500. The remaining liquid is a high-boiling-point impurity. The remaining liquid enters the second chamber 150 and is discharged through the high-boiling-point liquid discharge port 151 on the second chamber 150.

[0075] The present invention also provides a nicotine concentration method for preparing the nicotine, comprising at least the following steps:

[0076] S100: pre-treating the nicotine liquid to be distilled and extracted;

[0077] The pre-treatment of the nicotine liquid at least includes stirring, filtering and other treatment processes.

[0078] Stirring: If the nicotine mixture has uneven distribution of components, stirring can make the components fully mixed to ensure the extraction efficiency and accuracy of nicotine in the subsequent extraction process. For example, for a complex solution system containing nicotine, stirring can make nicotine and other substances better dispersed in the solution.

[0079] Filtration: Use a filtration device with a suitable pore size, such as filter paper, filter membrane, etc., to remove solid impurities, suspended matter, etc. in the mixed solution. These impurities may affect the subsequent extraction process and even damage the extraction equipment. For example, for a nicotine mixture containing solid particles such as tobacco debris, filtration can effectively remove these impurities.

[0080] S200: introducing the nicotine liquid into the second tank 200 to remove low boiling point impurities;

[0081] The pre-treated nicotine liquid is introduced into the second tank body 200 of the nicotine preparation concentration device, and the nicotine liquid passes through the second tank body 200 to remove low boiling point impurities, thereby removing low boiling point impurities in the nicotine liquid.

[0082] S300: The nicotine liquid in the second tank body 200 passes through the first tank body 100 to remove high boiling point impurities;

[0083] The nicotine liquid from which low-boiling-point impurities have been removed enters the first tank body 100 through the suction pump 170 of the nicotine preparation concentration device to remove high-boiling-point impurities, thereby distilling and extracting the nicotine in the nicotine liquid, and the remaining high-boiling-point liquid is discharged through the high-boiling-point liquid discharge port 151.

[0084] S400: collecting the extracted nicotine.

[0085] The nicotine vapor is condensed and liquefied by the condenser 500, and the liquefied nicotine is collected to complete the distillation extraction of nicotine.

[0086] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0087] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A nicotine concentration device, characterized in that: include: A first tank body, wherein a plurality of first distillation tubes are vertically arranged in the first tank body, the plurality of first distillation tubes divide the first tank body into a first chamber and a second chamber distributed vertically, and the plurality of first distillation tubes connect the first chamber and the second chamber; A second tank body, wherein a plurality of second distillation tubes are vertically arranged in the second tank body, the plurality of second distillation tubes are connected to a bellows, a sliding plate is arranged on the other end of the plurality of bellows, the sliding plate and the plurality of second distillation tubes divide the second tank body into a third chamber and a fourth chamber distributed vertically, the plurality of second distillation tubes and the bellows are connected to the third chamber and the fourth chamber, and the first chamber is connected to the fourth chamber; The nicotine liquid flows sequentially through the third chamber, a plurality of second distillation tubes, a plurality of bellows, a fourth chamber, a first chamber, a plurality of first distillation tubes, and a second chamber; A steam generator capable of delivering steam to the outer peripheries of the plurality of first distillation tubes, the second distillation tubes, and the bellows to heat the plurality of first distillation tubes, the second distillation tubes, and the bellows; A driving assembly, wherein the driving assembly can drive the sliding plate to reciprocate along the axial direction of the second tank body, and the sliding plate drives a plurality of bellows to reciprocate and extend. The driving assembly includes a rotating shaft, which is rotatably connected to the axis of the second tank body, and the rotating shaft is bidirectionally threaded with the sliding plate. The rotation of the rotating shaft drives the sliding plate to reciprocate axially. The driving assembly also includes rotating blades, which are coaxial and fixedly connected to the rotating shaft. A baffle is provided in the third chamber, and the baffle divides the third chamber into a driving chamber and a liquid inlet chamber distributed up and down. The rotating blade is located in the driving chamber, and the driving chamber is connected to the steam generator. generator, steam passes through the driving chamber to blow the rotating blades to rotate, the driving chamber is communicated with the cavities outside the plurality of second distillation tubes, a transmission assembly is arranged in the second tank body, the transmission assembly can drive the plurality of second distillation tubes to rotate around its own axis, the transmission assembly comprises a first transmission gear and a second transmission gear, the first transmission gear is coaxial and fixedly arranged on the rotating shaft, the second transmission gear is coaxial and fixedly arranged on the upper ends of the plurality of second distillation tubes, the first transmission gear is meshed with the plurality of second transmission gears, a liquid inlet is arranged below the connection between the second distillation tube and the second transmission gear, and the bellows is rotatably sealed and connected to the second distillation tube.

2. The nicotine concentration device according to claim 1, characterized in that: A suction pump is provided between the first chamber and the fourth chamber, and the suction pump pumps the nicotine liquid in the fourth chamber into the first chamber.

3. A nicotine concentration method for preparing nicotine, applicable to the nicotine concentration device for preparing nicotine according to claim 1 or 2, characterized in that: At least the following steps are included: S100: pre-treating the nicotine liquid to be distilled and extracted; S200: passing the nicotine liquid into the second tank to remove low boiling point impurities; S300: the nicotine liquid in the second tank body passes through the first tank body to remove high boiling point impurities; S400: collecting the extracted nicotine.

Images