CN114210094A - Nicotine production system - Google Patents

Abstract

The utility model provides a nicotine production system, includes the feed arrangement, leaching arrangement, extraction device, enrichment facility, reextraction device, rectifier unit and the fortune material mechanism between each device that distribute in proper order from upper reaches to low reaches, feed arrangement is used for mixing the required nicotine raw materials for production of low reaches leaching arrangement, the leaching arrangement is including leaching the cavity and setting up the nicotine raw materials for production entry, extraction solvent entry, nicotine raw materials for production waste residue export, the export of nicotine extract on leaching the cavity, and the nicotine raw materials for production waste residue that produces after nicotine raw materials for production and the extraction solvent interact, the nicotine extract that contains are respectively through nicotine raw materials for production waste residue export, the export of nicotine extract and are discharged, contain the nicotine extract through extraction arrangement, enrichment facility, reextraction device, the processing back-production nicotine finished product of low reaches. The application of the nicotine production system is consistent with the nicotine production process, so that the whole system is convenient for industrial production and application, and the industrial production of nicotine is realized.

Description

Nicotine production system

Technical Field

The invention relates to the technical field of nicotine production equipment, in particular to a nicotine production system.

Background

Natural nicotine, also known as nicotine, is an important medicine, natural pesticide, spice and chemical raw material, is easily soluble in organic solvents such as alcohol, ether, chloroform, alkane and the like and water, and can be used for producing safe and effective smoking cessation products, electronic cigarettes and low-toxicity and residue-free pesticide.

At present, the nicotine production process disclosed in the prior art is mainly embodied in laboratory preparation, and the industrial production process is less. Accordingly, production line systems that can be used for industrial nicotine production are also rare. Therefore, the system is suitable for the nicotine production process, is convenient for industrial production and application of the whole system, and realizes industrial production of nicotine.

Disclosure of Invention

The present invention is directed to overcoming at least one of the disadvantages of the prior art, and providing a nicotine production system, which is distributed among devices so that the system can be applied to the industrial production of nicotine, thereby facilitating the industrial production of nicotine.

The technical scheme includes that the nicotine production system comprises a closed feeding device, a leaching device, an extraction device, a concentration device, a back extraction device, a rectification device and a closed material conveying mechanism among the devices, wherein the closed feeding device, the leaching device, the extraction device, the concentration device, the back extraction device and the rectification device are sequentially distributed from upstream to downstream, the closed feeding device is used for mixing nicotine production raw materials after receiving the nicotine production raw materials and providing the mixed nicotine production raw materials to the leaching device, the leaching device comprises a leaching cavity, a nicotine production raw material inlet, an extraction solvent inlet, a nicotine production raw material waste residue outlet and a nicotine-containing extracting solution outlet, the nicotine production raw material waste residue and the nicotine-containing extracting solution generated after interaction of the nicotine production raw materials and an extraction solvent are discharged through the nicotine production raw material waste residue outlet and the nicotine-containing extracting solution outlet respectively, and the nicotine-containing extracting solution is discharged through the downstream extraction device, the concentration device and the rectification device, And (4) producing a nicotine finished product after processing by the back extraction device and the rectification device. The closed representative devices in the closed feeding device and the closed conveying mechanism are not exposed, and the inlet and the outlet are in closed connection with the upstream and downstream devices. The nicotine production raw materials comprise tobacco ribs, calcium oxide (or sodium hydroxide) and water, the nicotine production raw materials are mixed through a feeding device, then the raw materials are delivered to a leaching device, and nicotine is extracted through an extraction solvent in the leaching device, so that nicotine-containing extracting solution is obtained. And then, extracting (sulfuric acid water extraction), concentrating (concentrating the nicotine sulfate obtained in the previous step), back-extracting (extracting nicotine in the nicotine sulfate by using an extraction solvent to form an extracting solution containing high-concentration nicotine), and rectifying (separating the extraction solvent and the nicotine to obtain a nicotine finished product with certain purity). The nicotine production system provided by the invention can correspond to the main process of industrial production of nicotine, and is convenient for industrial production of nicotine. More importantly, the extraction device, the enrichment facility, the reextraction device, the rectifier unit is non-exposed closed processing equipment, and on this basis, this application further through sealed feed arrangement, the leaching device that seals relatively (only through nicotine raw materials for production entry, extract the solvent entry, nicotine raw materials for production waste residue export, nicotine extract that contains export provides the access way), seal the perfect relative seal of whole production process of fortune material mechanism, avoid including wherein alkalization process (fermentation), the waste gas that the leaching process produced, smoke and dust pollutes the workshop environment, a relatively confined nicotine safety production system is provided, be convenient for realize closed, automatic production process, and the security is high.

Further, the closed feeding device comprises a first conveying mechanism, a second conveying mechanism and fermentation equipment (actually, a stacking alkalization space is provided for the mixed nicotine production raw materials), the first conveying mechanism comprises a closed first shell and a spiral blade which is arranged in the first shell and is driven to spirally convey materials, and a first feeding hole and a first discharging hole are formed in the first shell; the second conveying mechanism comprises a closed second shell and a plurality of scrapers which are arranged in the second shell and driven to move to convey materials, and a second feeding hole and a second discharging hole are formed in the second shell; the fermentation equipment comprises a fermentation cavity, and a fermentation inlet and a fermentation outlet are arranged on the fermentation cavity; the sealed accepting of second feed inlet is under first discharge gate, the sealed accepting of fermentation entry is in under the second discharge gate, and fermentation export low reaches are accepted the nicotine raw materials for production entry that has leached the device.

First conveying mechanism, second conveying mechanism, fermentation equipment all are equipped with corresponding closed casing, and only set up necessary opening, like corresponding feed inlet, discharge gate, and also be sealing connection between the discharge gate that accepts mutually, the feed inlet, can effectively avoid dust, the waste gas in the transportation process to overflow before the fermentation of nicotine production through this mode to avoid scattering in the workshop and arouse workshop staff's healthy problem. First conveying mechanism adopts auger delivery, except being convenient for cooperate first casing formation relatively confined transport space, the auger delivery process can also carry out certain stirring mixing action to the material to be convenient for follow-up get into in the fermentation equipment and evenly fill, improve the fermentation effect. First conveying mechanism's first feed inlet can be used to the entering of nicotine production auxiliary material, water, second conveying mechanism adopts the scraper blade to transport, then can effectively transmit auxiliary material, water mixture. Because the addition of water can cause the production raw materials to agglomerate or gather densely, the conveying efficiency is low by adopting a spiral conveying mode, and the spiral conveying mechanism is easily damaged. And adopt the second conveying mechanism transportation that contains a plurality of scrapers to contain the mixture of cigarette muscle, calcium oxide, water to fermentation equipment, can carry out effectual transmission, compare in the auger delivery structure, its structure receives the transportation resistance influence of wet piece less, can be comparatively perfect realize the transmission of wet material behind the water. Through this closed feed system, can ensure the material transmission in the relative enclosure space, avoid scattering of dust, waste gas in the prior art nicotine production, and through screw feed, scraper blade transport can be better cooperation nicotine raw materials for production realize corresponding stirring mix, to the transport of wet water material, can realize mixing effect under the prerequisite that does not need special agitated vessel. Utilize the scraper blade to carry can the pertinence wet piece to cigarette muscle, calcium oxide, water formation and transmit, provide certain conveying efficiency and transport intensity, the cooperation sets up first conveying mechanism in the front, makes whole charge-in system more stable. Further, the first conveying mechanism and/or the second conveying mechanism and/or the fermentation equipment are/is provided with a suction and discharge device communicated with the outside and used for discharging dust and waste gas to the outside.

Further, the first conveying mechanism is a packing auger conveyor, and the second conveying mechanism is a scraper conveyor. The auger conveyor can provide certain conveying, stirring and mixing functions, and the auger conveyor can transmit forward and backward and has strong operability. The scraper conveyor is stable and simple in structure, long in conveying distance and also is a closed box body, and materials, dust and waste gas can be effectively prevented from flying.

Further, the first shell and the second shell are transparent shells. The first shell and the second shell are transparent shells, so that the internal transmission process of the device can be monitored in real time, the device can be adjusted in time when the device breaks down or is abnormally transmitted, and waste products and cost waste can be avoided.

Further, the second conveying mechanism is obliquely arranged, the second feed inlet is formed in the lower side, and the second discharge outlet is formed in the higher side. Specifically, the fermentation equipment of industrial production among the prior art, like the fermentation cylinder, highly higher, and set up the slope of second conveying mechanism and set up then be convenient for by the low level to high-order transportation material to smooth transportation material is to the fermentation cylinder in.

The stirring device comprises a stirring outer shell with a hollow inner part and stirring blades arranged in the stirring outer shell, wherein a stirring material inlet and a stirring material outlet are formed in the stirring outer shell; the stirring material inlet is connected with the first discharge hole in a sealing mode, the second feed hole is connected with the stirring material outlet in a sealing mode, and the fermentation inlet is connected with the second discharge hole in a sealing mode. Although can play certain mixing effect through first conveying mechanism, through adding agitated vessel, then be convenient for further mixing material, improve nicotine production effect. The stirring shell body is the shell of the stirring equipment.

Further, the agitated vessel top is equipped with opening stirred tank up, be equipped with stirring vane in the stirred tank, be equipped with the unloading passageway between stirred tank opening border and the stirring shell body inner wall, the material is through stirring material entry, stirred tank, unloading passageway arrival stirring material export. The material that first discharge gate flows out gets into agitated vessel through stirring material entry to fall on the stirred tank. The material gets into and is driven and stir by stirring vane in the stirred tank back, and when the material pile was higher than stirred tank opening border in the stirred tank, the material then can spill over and through the downward blanking of unloading passageway, and then gets into second conveying mechanism second feed inlet through agitated vessel bottom stirring material outlet. Through this mode stirring and unloading, can realize stirring ejection of compact simultaneously, improve production efficiency. And for stirring by utilizing the cavity in the whole stirring equipment, the stirring tank with a small containing cavity is more beneficial to uniform stirring, and the required stirring power is less.

Further, the height of the side wall of the stirring tank is 15-20 cm, and the height of the stirring blade is 5-15 cm. The stirring tank side wall and the stirring blade are arranged to be at the height, a smaller stirring space is formed, and quick stirring and timely stirring materials are convenient to overflow.

Further, the height of the side wall of one side of the stirring tank is lower than that of the side wall of the other side of the stirring tank. Set up agitator tank one side lateral wall both sides highly different, the material still can spill over, the unloading to the unloading passageway through the lower one side opening of lateral wall after getting into the agitator tank, and simultaneously, the higher one side of lateral wall then provides more spaces of piling up, prepares the material that gets into in the stirring vane stirring range in advance, improves stirring efficiency.

Further, the inner wall of the stirring outer shell is an arc-shaped side wall with an arc-shaped opening facing the inner side. The inner wall of stirring shell body sets up to the cambered surface lateral wall and is favorable to stirring back material cunning to stirring material export, avoids the stirring material bonding of mixed water on the inner wall of stirring shell body. Furthermore, when the height of the side wall of one side of the stirring tank is lower than that of the side wall of the other side of the stirring tank, the inner wall of the stirring outer shell of the stirring device at least at the side with the lower height of the side wall of the stirring tank is an arc-shaped side wall with an arc-shaped opening facing the inner side; the material overflows from this side promptly, sets up the cambered surface lateral wall and is favorable to the material smooth whereabouts and gets into the stirring export.

Further, still include closed conveyer belt mechanism, closed conveyer belt mechanism includes closed third casing, conveyer belt, the third casing is equipped with third feed inlet, third discharge gate, the third discharge gate is accepted on the second feed inlet, the conveyer belt shape is the ascending arc of opening on the cross-section of perpendicular to direction of transfer, and the material reaches the second feed inlet through third feed inlet, third conveyer belt, third discharge gate in proper order.

The first conveying mechanism which is connected with the stirring device or the fermentation device is different from a conveying belt and can convey water in a closed shell, so that the direct upstream conveying mechanism which is arranged as the second conveying mechanism is more beneficial to perfect conveying of the water component. And other supplementary materials are then mostly accumulational particulate matter, and this type of particulate matter then can adopt multiple structure to transport, including closed conveyer belt mechanism. Compared with the mode of driving the whole spiral blade to convey, the power required by the conveying belt conveying mode is less, the energy consumption can be effectively saved, and the cost is reduced. Meanwhile, the dust-proof exhaust hood has the technical effect of preventing dust, waste gas and the like from leaking. And a closed conveyor belt mechanism is arranged in front of the first conveying mechanism, so that the requirements on the conveying distance and the conveying length of the first conveying mechanism are reduced, and the load on a single conveying structure is reduced.

Since the raw and auxiliary materials are usually in the form of stacked particles, they may roll and fall out of the conveyor belt, and especially when the conveyor belt vibrates up and down due to the precision of mechanical equipment, the raw and auxiliary materials are more likely to roll and fall out of the conveyor belt toward both ends in the width direction. The cross section of the third conveyor belt in the direction perpendicular to the conveying direction is arc-shaped, namely, the two sides are high and the middle is low, materials enter the surface of the third conveyor belt and then are concentrated in the middle area of the third conveyor belt, and even if the materials exist in a particulate form, the materials are difficult to roll towards the two sides and fall, so that the loss of the materials in the conveying process is reduced, the production control precision is improved, and the production effect is further improved.

Further, the closed conveyor belt mechanism comprises a closed third shell, a conveyor belt, a first synchronizing wheel, a second synchronizing wheel and a third synchronizing wheel; a third feeding hole and a third discharging hole are respectively formed in the two ends of the third shell, the third discharging hole is connected to the first feeding hole, an arc-shaped hole with an upward arc-shaped opening is formed in the end face of one end, close to the third feeding hole, of the third shell, and an outlet hole is formed in the bottom face of one side, close to the third discharging hole, of the third shell; the first synchronous wheel is arranged outside the third shell and on one side of the arc-shaped hole, and the top end of the first synchronous wheel is higher than the arc-shaped hole; the second synchronizing wheel is arranged on one side, close to the third discharge hole, in the third shell and is a saddle wheel; the third synchronizing wheel is arranged outside the third shell, the bottom end of the third synchronizing wheel is lower than the third shell, and the conveyor belt sequentially passes through the first synchronizing wheel, the arc-shaped hole, the second synchronizing wheel, the outlet hole, the third synchronizing wheel and the first synchronizing wheel.

Further, the closed conveyor belt mechanism comprises a closed third shell, a third conveyor belt, a first synchronizing wheel, a second synchronizing wheel and a third synchronizing wheel; a third feeding hole and a third discharging hole are respectively formed in the two ends of the third shell, the third discharging hole is connected to the first feeding hole, an arc-shaped hole with an upward arc-shaped opening is formed in the end face of one end, close to the third feeding hole, of the third shell, and an outlet hole is formed in the bottom face of one side, close to the third discharging hole, of the third shell; the first synchronous wheel is arranged outside the third shell and on one side of the arc-shaped hole, and the top end of the first synchronous wheel is higher than the arc-shaped hole; the second synchronizing wheel is arranged on one side, close to the third discharge hole, in the third shell and is a saddle wheel; the third synchronizing wheel is arranged outside the third shell, the bottom end of the third synchronizing wheel is lower than the third shell, and the third conveyor belt sequentially passes through the first synchronizing wheel, the arc-shaped hole, the second synchronizing wheel, the outlet hole, the third synchronizing wheel and the first synchronizing wheel.

Because supplementary material usually exists with accumulational particulate form, it can take place to roll and drops outward to the third conveyer belt, and set up arc hole, saddle wheel, then can cooperate and make the third conveyer belt appear as the arc in the cross-sectional shape on the perpendicular to direction of transfer, state that both sides are high, the centre is low promptly, the material gets into and then concentrates on the conveyer belt middle zone behind the conveyer belt surface, even it exists with accumulational particulate form, also be difficult to roll to both sides and drop, thereby reduce the loss of material in transmission process, improve production control's precision, further improve production effect. Set up first synchronizing wheel top and be higher than the arc hole, be favorable to making arc hole and conveyer belt surface offset to make third conveyer belt laminating arc hole and formation cross-section be curved state. And the third synchronizing wheel sets up to the saddle wheel, then is favorable to maintaining the conveyer belt shape before the ejection of compact, and the guarantee feeding does not take place to drop to ejection of compact in-process material. And the outlet hole is provided and the outlet hole is closer to the first synchronizing wheel than the third synchronizing wheel so that the arrangement of the third discharging port is convenient, namely, only the third discharging port is provided on one side of the third synchronizing wheel, and the outlet groove can guide the third conveyor belt passing through the third synchronizing wheel to move towards the opposite side. The second synchronizing wheel is arranged, so that the conveyor belt can be prevented from being abutted to the shell, and the abrasion of the surface of the conveyor belt is reduced.

Further, the arc hole border is equipped with a plurality of balls, the exit hole border is equipped with a plurality of balls. Set up a plurality of balls and be favorable to reducing the third conveyer belt through the wearing and tearing that arc hole, exit hole received, and can not produce the resistance to the removal of third conveyer belt basically, be convenient for smooth transmission.

Furthermore, the third shell is connected with a negative pressure device which communicates the inner cavity of the third shell with the outdoor environment. Because the third conveyer belt needs constantly to remove, and the required space of conveyer belt slip needs to be reserved to its arc hole, exit hole, so closed conveyer belt mechanism third casing probably can't seal completely, nevertheless through setting up negative pressure device, then can maintain the interior negative pressure state of third casing all the time to make dust, the waste gas in the closed conveyer belt mechanism discharged the external world or collected.

The conveying device further comprises more than one fourth conveying mechanism which is arranged on the upper stream of the closed conveying belt mechanism and is in sealed connection, wherein the fourth conveying mechanism comprises a closed fourth shell and a helical blade which is arranged in the fourth shell and is driven to carry materials in a helical manner, and a fourth feeding hole and a fourth discharging hole are formed in the fourth shell; or the fourth conveying mechanism comprises a closed fourth shell and a plurality of scrapers which are arranged in the shell and driven to move to convey materials, and a fourth feeding hole and a fourth discharging hole are formed in the fourth shell; or, the fourth conveying mechanism comprises a closed fourth shell and a fourth conveying belt, the fourth shell is provided with a fourth feeding hole and a fourth discharging hole, the shape of the fourth conveying belt on the cross section perpendicular to the conveying direction is an arc with an upward opening, and the materials sequentially pass through the fourth feeding hole and the fourth conveying belt to reach the fourth discharging hole.

Through set up the more than one fourth conveying mechanism who accepts at closed conveyer belt mechanism upper reaches, can realize long distance transmission equally, further separate the same transport distance and be a plurality of short transport distances, be favorable to using the first conveying mechanism or closed conveyer belt structure etc. that the transport distance is shorter, make overall structure more easily replace, maintain. For the single first conveying mechanism with a long conveying distance to convey, the helical blade of the first conveying mechanism has heavy load on the driving part, and the conveying effect and the stirring effect of the first conveying mechanism are also limited. For a closed conveyor belt mechanism with a long transmission distance, when the transmission distance is long, the middle part of the conveyor belt easily sinks, so that the transmission effect is influenced, and the conveyor belt mechanism is more easily damaged and cannot be continuously utilized. And the same long-distance transmission is realized by the connection of a plurality of transmission mechanisms, so that the arrangement of the transmission mechanisms is convenient, the maintenance and the replacement of the whole transmission mechanism are more facilitated, and the loss of each transmission mechanism can be effectively reduced by a shorter transmission distance.

Furthermore, the collecting and maintaining device comprises a collecting cavity, a maintaining door is arranged on one side of the collecting cavity, the feeding port side of the second conveying mechanism is borne in the collecting cavity, and a drain hole is formed in the bottom end of the feeding port side of the second conveying mechanism. The maintenance door is a door structure arranged on the side wall of the collection cavity, and maintenance personnel open the maintenance door so as to maintain and clean the drain hole and the collection cavity. Since the scraper is different from the helical blade and the efficiency of conveying water is general, part of the conveyed water cannot be conveyed continuously and is deposited on the lower side of the second conveying mechanism. If the continuous deposition is carried out, the subsequent material is not favorably entered and conveyed, and the drainage holes are favorable for timely drainage, or the deposited water is independently conveyed, so that the influence on the conveying effect caused by the continuous deposition with other raw and auxiliary materials in a single container is avoided.

Furthermore, a recoil pump for dredging the drain hole is arranged on the side of the drain hole of the second conveying mechanism. Because the nicotine raw and auxiliary materials and water are mixed to form larger agglomerates, the drain hole is easily blocked in the drainage process, and the drain hole can be dredged through the recoil pump. Specifically, the drain hole is connected with a branch pipeline, one branch is used for draining water, the other branch is communicated with the drain hole and the backflushing pump, when the backflushing pump needs to be used, the branch used for draining water is closed, the backflushing pump and the corresponding branch of the backflushing pump are started, and backflushing can be performed on the drain hole, so that the drain hole is dredged. Specifically, the recoil pump is a pneumatic pump that provides a high pressure gas flow.

Further, the first conveying mechanism is obliquely arranged, and the first material outlet end is lower than the first material inlet end. When adopting first conveying mechanism to carry the water component, if first conveying mechanism level sets up, then because of helical blade not the unidirectional transportation of complete closure, the water component then still can partly flow to the one side opposite with direction of delivery, and lead to easily influencing follow-up transmission's efficiency with other supplementary product bonding. When the inclined device is arranged, not only does the water need to move to the opposite side, but also the water component can wash the raw auxiliary materials at the downstream and continuously move along the conveying direction.

Further, when the first conveying mechanism is obliquely arranged, the included angle between the first conveying mechanism and the horizontal plane is 5-15 degrees. The first conveying mechanism is arranged to have a certain inclination angle, so that water can be prevented from moving in the direction opposite to the conveying direction, and the stirring effect of the original spiral conveying is conveniently maintained. If the angle of inclination is too large, the material will move faster under the action of gravity, and the stirring effect of the helical blade will be impaired, so that a certain angle needs to be maintained to maintain the advantages of the helical blade.

Furthermore, the upper part of the fermentation equipment is also provided with a negative pressure exhaust mechanism communicated with the outside. The fermentation process comprises an aging/alkalization process, waste gas is generated in the process, and the arrangement of the negative pressure exhaust mechanism is favorable for timely discharging the waste gas generated in the fermentation tank. Still further, the negative pressure exhaust mechanism comprises a pipeline communicated with the outdoor environment and a negative pressure fan arranged in the pipeline.

Through setting up the relative confined first conveying mechanism of transmission environment, second conveying mechanism, fermentation equipment for before the fermentation, in the fermentation process all keep comparatively confined environment, effectively prevent the four of dust, waste gas from loosing in the production process, thereby keep clean, friendly workshop environment, avoid producing healthy problem to workshop staff. Meanwhile, on the premise of ensuring that dust and waste gas are not scattered, the spiral conveying mechanism can provide a certain stirring effect, and even if no special stirring equipment is provided, the basic stirring function can be realized by using the first conveying mechanism, so that one machine with multiple functions is realized. In consideration of the caking and dense characteristics of the wet water materials, the application also designs the second transmission mechanism for transmitting the wet water materials to be scraper transmission so as to provide enough transmission power and stability. On this basic scheme, this application can also be through setting up a plurality of transport mechanism in order to realize long distance's transmission through the cooperation of a plurality of transport mechanism at first transport mechanism upstream, avoids alone first transport mechanism transmission distance overlength to take place to damage or arouse transmission efficiency's reduction. The method comprises the step of arranging a closed conveying belt mechanism at the upstream of a first conveying mechanism, so that the power required by transmission can be reduced while the transmission efficiency and the long-distance transmission are realized in a matched mode. The first conveying mechanism can be integrally combined in multiple ways at the upstream so as to adapt to different production requirements, and the device is high in operability, convenient to maintain and replace and more stable. This application is still through setting up agitated vessel in order further to improve the mixing effect, further gets rid of the adverse effect that tilting, vertical transmission probably brought through collecting device, and guarantee second conveying mechanism continuously carries the material smoothly, improves holistic conveying efficiency. And the stirring and closed transmission effects are improved by arranging the stirring tank, the negative pressure device and other structures, so that the production efficiency, the production quality and the like are further improved.

Further, nicotine production raw materials waste residue export low reaches are accepted there is waste residue processing apparatus, waste residue processing apparatus includes passback conveyer, holds the material pond, removes collecting device, passback conveyer receives waste residue and conveys to holding in the material pond and/or through holding and remain on passback conveyer behind the material pond, it is equipped with the opening and closing door to hold material pond bottom, the opening and closing door just is located the opening and closing door after the waste residue in the material pond is held in the release.

Further, the mobile collecting device is a collecting vehicle.

The return transmission device comprises a transmission device with a transmission path of closed cycle transmission. Furthermore, the conveying devices are formed by a plurality of mutually-connected conveying devices, when the waste residue cannot enter the material storage pool, the returning conveying device continuously conveys the waste residue to the original waste residue receiving position after receiving the waste residue, and continues to convey in the next circulation until the material storage pool has a filling space and is filled when passing through the material storage pool in the next circulation conveying process. The opening and closing door is a control opening and closing door which is horizontally arranged and driven to open and close so as to open or close the outlet at the bottom of the material storage pool.

After the waste residue is received by the return conveying device, conveying the waste residue, filling the waste residue into a storage tank in a storage tank state when the waste residue passes through the storage tank and/or keeping the waste residue on the return conveying device for continuous transmission, when the storage tank is in an unfilled complete state, allowing the waste residue to enter the storage tank, and if the storage tank is completely filled in the entering process, allowing the residual unfilled waste residue to continue to enter the return conveying device and filling the waste residue into the storage tank at the next filling time; when the material storage tank is in a complete filling state, the waste residue directly passes through the material storage tank and is retained on the material storage tank when passing through the material storage tank by the transmission of the material storage tank through the transmission conveying device, and the waste residue is filled at the next filling time. An opening and closing door is arranged at the bottom of the material storage pool, and waste residues in the material storage pool are released after the movable collecting equipment is in place. Through nicotine production waste residue automatic processing system in this application, the waste residue need not concentrate on a certain department and pile up, and whole conveyer's upper surface is equivalent to a plurality of positions of stacking, the horizontal ascending space of make full use of. More importantly, the automatic circulating flow and treatment of the waste residues can be realized through the matching of the return conveying device and the material storage pool, manual monitoring is not needed, the pipeline and the baffle plate are conveniently arranged on the whole system, a fully-closed automatic treatment system is formed, and the waste residues are exposed only when the waste residues are released after the movable collecting equipment is in place. Not only does not need manual monitoring and the position of accumulated waste residues is discharged in time, but also is convenient for forming a closed structure to prevent harmful gas in the waste residues from influencing human bodies.

The waste residue entering detector detects whether waste residue is about to fall into the return conveyor belt device, a plurality of gravity sensors are distributed on the return conveyor belt device, and the transmission speed controller controls the transmission speed of the return conveyor belt device according to signals of the gravity sensors and the waste residue entering detector, so that the surface vacant area is matched with and receives the waste residue about to enter.

Further, hold material pond below and be equipped with ejection of compact pipeline, ejection of compact pipeline includes the cone mouth, with the lower cone mouth that the upper cone mouth is connected, holds the ejection of compact of material pond waste residue through opening and shutting door, upper cone mouth, lower cone mouth in proper order. Set up discharge pipe way below holding the material pond and can play the direction to the discharge of waste residue, the door that opens and shuts directly releases the waste residue and can lead to the comparatively dispersed falling of waste residue, can not concentrate on fixed area, is unfavorable for the collection vehicle to collect. The upper part of the discharging pipeline is provided with an upper conical opening which is beneficial to the waste residue to enter the treatment management quickly, and the lower part of the discharging pipeline is provided with a lower conical opening which is beneficial to providing a larger discharging port which falls on a larger area of fixed area when the waste residue is guided and limited to fall on the fixed area.

Further, the cross-sectional shape of the discharge pipeline is elliptical. At present, for fully collecting the material, including the mobile collection equipment that is equipped with the hopper such as collection vehicle, its hopper generally is the cuboid space, and sets up oval-shaped, then helps the waste residue in the vertical of hopper, horizontal homoenergetic windrow, make full use of hopper collection space. And when the inner wall of the discharging pipeline is a smooth cambered surface, the residue of the waste residue on the corner can be effectively avoided, and the waste residue can smoothly slide and enter a collecting space.

Furthermore, the discharging pipe is sleeved with an elastic locating sleeve, and the bottom end of the locating sleeve is lower than the bottom end of the lower conical opening. The discharge pipeline bottom is the taper mouth down, directly lift off the waste residue through the taper mouth down and then probably lead to the waste residue to spill outside the removal collecting device who is equipped with the receiving hopper, and set up and have elastic position sleeve and position sleeve bottom when being less than the taper mouth bottom down, because the position sleeve has certain elasticity, its part that surpasss the taper mouth bottom is then drawn close to the centre down, has just avoided the waste residue to spill the situation on one side when directly falling through the taper mouth down this moment. Meanwhile, due to certain elasticity, when waste slag passes through the positioning sleeve below the lower cone opening, the positioning sleeve can still change due to stress, so that the waste slag can smoothly fall down. Through the position sleeve outside the lower cone opening, the advantage on the blanking area of the lower cone opening is ensured, and the problem of sprinkling caused by the fact that the opening of the lower cone opening is large when the collecting device is not completely aligned to the collecting position is avoided.

Further, remove collecting device including removing the main part and setting up the receiving hopper on removing the main part, the position sleeve bottom is less than receiving hopper opening border. Further, remove collecting device and be the collection vehicle, promptly the collection vehicle includes the automobile body and sets up the receiving hopper on the automobile body, the position sleeve bottom is less than receiving hopper opening border. The bottom end of the positioning sleeve is lower than the edge of the opening of the receiving hopper, and the positioning sleeve can be matched with the receiving hopper to intensively drop waste residues into the receiving hopper. When the collecting hopper of the collecting vehicle is completely opposite to the opening and closing door and the discharging pipeline of the material storage pool above, the collecting hopper is located at the best collecting position, and the material can be discharged naturally and accurately fall on the collecting hopper. However, at the same time, the collecting vehicle is limited by factors such as precision or self control of the collecting vehicle, the collecting vehicle is not in the optimal collecting position, the receiving hopper is under the discharging pipeline, but position deviation may exist, and at the moment, through the matching of the positioning sleeve and the receiving hopper, the waste residue can still fall into the receiving hopper and cannot spill out of the receiving hopper only by positioning the positioning sleeve in the receiving hopper.

Furthermore, the lower end of the positioning sleeve is provided with a contraction opening which is close to the middle, and the contraction opening is opened outwards after being stressed. At the moment, compared with the positioning sleeve with a larger opening, the collecting vehicle only needs to be parked under the contraction opening with a smaller caliber, namely, the alignment process can be at least realized, and the alignment difficulty of the collecting vehicle and the waste residue outlet is reduced. Furthermore, the contraction port is in a contraction state when the waste slag does not fall down, and is in a bundle-shaped structure relative to the collection vehicle, so that the collection vehicle is conveniently aligned; when the waste residue falls down, the contraction opening does not release the waste residue in time, the waste residue can be accumulated on the contraction opening and continuously applies pressure to the two sides of the contraction opening along with the falling of the follow-up waste residue, and the contraction opening is opened and the waste residue is rapidly released. The balance of convenient collection, accurate collection and quick release of waste residues is realized through the contraction port.

Furthermore, a lifting device is arranged on one side, close to the upper cone opening, of the positioning sleeve and used for lifting the positioning sleeve upwards to shorten the distance of the positioning sleeve extending downwards relative to the bottom end of the lower cone opening. When the height of the bottom end of the positioning sleeve is unchanged, when the waste residue is accumulated on the collecting vehicle to the height reaching the height of the bottom end of the positioning sleeve, the subsequent falling waste residue is easily limited in the positioning sleeve and cannot be discharged outside the positioning sleeve, the low-level space around the collecting vehicle in the collecting space cannot be continuously filled, and the waste residue is difficult to be fully discharged and the collecting vehicle space is difficult to be fully utilized. Moreover, it is not convenient for the collection cart to be transported away. Because the waste residue in the position sleeve can not flow out continuously, the collecting vehicle drives away to and breaks away from with the position sleeve, and the waste residue can fall on the region outside the collecting vehicle. And set up pulling device, then be favorable to along with the discharge of waste residue, pile up the continuous adaptability of the increase of height and improve the space that the waste residue flows on the collection vehicle, avoid the waste residue restricted to be saved in the position sleeve, make the waste residue homoenergetic that falls fill in the collection vehicle.

Furthermore, a pulley is arranged on the outer side of the fixed outer sleeve and is positioned at the joint of the upper conical opening and the lower conical opening. When the positioning sleeve is pulled only by the pulling device, the area between the pulling device and the lower cone opening is likely to be stretched and tends to be in a vertical state, and the positioning sleeve below the lower cone opening is likely to gradually get close to the middle, so that the area where waste residues fall down is likely to be reduced. The pulley is arranged at the joint of the upper cone opening and the lower cone opening, so that the lifting is facilitated, the part of the positioning sleeve below the pulley is still in a state of being attached to the outer wall of the lower cone opening of the discharging pipeline, the size of a falling outlet of waste residues is maintained, the falling area of the waste residues is maintained, the collection space of the movable collection equipment is fully utilized, and the waste residues in the material storage tank are discharged as much as possible.

Furthermore, the bottom of the movable collecting device is provided with wheels which are driven to drive the movable collecting device to move, a movable collecting device stopping chamber is arranged below the material storage pool, a wheel pair sensor is arranged at the bottom of the movable collecting device stopping chamber, and a driving guide line and/or a driving guide rail is formed by extending the bottom surface of the movable collecting device stopping chamber to the outside. Taking the mobile collecting device as an example of a collecting vehicle, the wheel pair sensor is used for detecting whether wheels of the collecting vehicle are in a specified area, and the wheel pair sensor is used for monitoring whether the collecting vehicle stays below the material storage tank opening and closing door, so that waste residues can accurately fall into a collecting space of the collecting vehicle. The traveling guide line guides the collecting vehicle to travel and facilitates the collecting vehicle to stay at the optimal position for collecting waste residues, and when the collecting vehicle runs on the guide rail, the traveling position and the stopping position of the collecting vehicle can be controlled more easily through the traveling guide rail. The motion track, the stopping direction and the position of the collecting vehicle are limited through the driving guide line and/or the driving guide rail, and the wheel pair sensor can effectively detect whether the collecting vehicle is in the optimal collecting position or not so as to send out an adjusting signal in time.

Furthermore, the return conveying device comprises a high-position conveying device, a low-position conveying device and a vertical conveying device, the material storage tank is arranged between the high-position conveying device and the low-position conveying device, an opening of the material storage tank and waste residues jointly form an inclined plane between the high-position conveying device and the low-position conveying device when the space is filled up, and the vertical conveying device is used for receiving the waste residues on the low-position conveying device and conveying the waste residues to the high-position conveying device.

To illustrate the collection vehicle as a mobile collection device, the storage tank and the opening/closing door need to be disposed at higher positions in order to provide a space for parking and collecting the collection vehicle, and at least a longitudinal and transverse parking space needs to be provided for the collection vehicle. In order to match the material storage pool with the collecting vehicle, two levels of space need to be provided in the vertical direction, and at this time, if the conveying device is arranged in the same level, another level of space is obviously wasted, and the two levels of space cannot be fully utilized. The conveying device is arranged to be a high-position conveying device, a low-position conveying device and a vertical conveying device, on one hand, the opening of the material storage pool is convenient to arrange to form a transition inclined plane, so that the mechanism of the return conveying device is simplified, and the conveying device only needs to be connected in different areas at different heights. If the transfer devices are disposed at the same height, a more complicated structure is required to realize transfer control of the slag. On the other hand, the arrangement of the high-position, low-position and vertical conveying devices is beneficial to being distributed in at least two layers, so that the residual space is fully utilized. Moreover, the space on the return transmission device is increased, which is beneficial to bearing more waste residues and carrying out circulating return transmission, when the waste residues are accumulated in a certain area of the return transmission device and cannot be filled into the material storage tank instantly, the subsequently produced waste residues can be accumulated in another area of the return transmission device, thereby avoiding continuous accumulation in one area. The bearing space of the return transmission device can be enlarged by using the high-position, low-position and vertical transmission devices, and the bearing capacity is improved. One end of the vertical conveying device is connected below the low-position conveying device, and the other end of the vertical conveying device is arranged above the high-position conveying device. The storage tank is arranged between the high-level conveying device and the low-level conveying device, natural transition waste residue trend selection can be formed, namely when the storage tank is not completely filled, waste residues are automatically filled along with conveying, when the storage tank is completely filled, the filling surface forms a transition plane so that waste residues which cannot be filled enter the low-level conveying device, and therefore transmission is continued until the waste residues pass through the storage tank next time and the storage tank is not completely filled.

Further, the reservoir opening is received below the high-level conveyor, and the low-level conveyor is received below the reservoir opening. Furthermore, baffles are formed above the conveying device and the material storage pool and on two sides of the conveying device and the material storage pool, and the baffles are equivalent to closed channels. When the material storage pool is completely filled, the opening of the material storage pool is connected below the high-position conveying device, the material storage pool can be naturally received and transited, and the waste residue is limited by the baffle plate and can smoothly enter the upper part of the low-position conveying device through the upper part of the material storage pool.

Furthermore, the high-position conveying device and the low-position conveying device are flat scrapers, and the vertical conveying device is a vertical scraper. The scraper blade bears a greater weight than other conveying structures. And the vertical scraper can well transport the low-position materials to the high position, so that the materials can conveniently enter the high-position conveying device again, and the circular transmission is realized.

Furthermore, an opening and closing door matched with the opening is arranged on the opening of the material storage pool. The opening and closing door seals the opening of the material storage pool when the material storage pool has no filling space and forms a smooth inclined plane positioned at the opening, and the opening state is kept when the material storage pool stores the filling space, so that the opening of the material storage pool is opened and the passing waste residues are received. The arrangement of the opening and closing door is more beneficial to smooth sliding of waste residues on the high-position conveying device to the low-position conveying device when the waste residues pass through the filled complete storage pool. Further, the opening and closing door is a hydraulic opening and closing door controlled to be opened and closed.

Further, will hold the material pond and set up in the passback conveyer outside, the system still includes the propelling movement structure, the propelling movement structure is used for the waste residue on the propelling movement passback conveyer to get into and holds the material pond when holding the material pond vacant.

Through the waste residue processing apparatus in this application, the waste residue need not concentrate on a certain department and pile up, and whole conveyer's upper surface is equivalent to a plurality of positions of stacking, the horizontal ascending space of make full use of. More importantly, the automatic circulating flow and treatment of the waste residues can be realized through the matching of the return conveying device and the material storage pool, manual monitoring is not needed, the pipeline and the baffle plate are conveniently arranged on the whole system, a fully-closed automatic treatment system is formed, and the waste residues are exposed only when the waste residues are released after the collecting vehicle is in place. Not only does not need manual monitoring and the position of accumulated waste residues is discharged in time, but also is convenient for forming a closed structure to prevent harmful gas in the waste residues from influencing human bodies. Still through setting up ejection of compact pipeline, position sleeve structure and collection vehicle cooperation, guaranteed down the cone mouth unloading area through the position sleeve to promote the accurate alignment of unloading and collection vehicle, avoid the unrestrained of waste residue. The automatic waste residue collecting device realizes the basic control of the collecting process from the received waste residues to the collecting vehicle, and solves the problems that the waste residues are accumulated at one position, the surface of the earth is remained, the waste residues can not be collected immediately and the like in the prior art. The invention also provides a corresponding processing method and a building, the processing method can overcome the defects that the waste residues in the prior art can only be accumulated and need to be manually managed, and the building is convenient to be applied to industrial production and realizes the deployment of waste residue processing devices.

Further, the leaching device is a flat-turn leaching device. The flat-turning leacher comprises a spray header and a centrifugal cylinder, a plurality of storage grids are arranged at the bottom of the centrifugal cylinder, the spray header is arranged above the storage grids, and the storage grids are used for placing nicotine production raw materials mixed by a closed feeding device. The nicotine production raw material falls into the centrifugal cylinder of the flat-turn leacher from the nicotine production raw material inlet, and is filled in the storage grid in the rotation process of the centrifugal cylinder. The spray header is connected with an extraction solvent inlet, and the extraction solvent is sprayed above the storage grid. The nicotine production raw material waste residue outlet and the extracting solution outlet are arranged at the bottom of the grid, and the nicotine production raw material waste residue and the nicotine-containing extracting solution are respectively discharged after extraction is finished. Further, the horizontal rotation leacher comprises domestic JP type small and medium sized leachers (18 grids, false bottom with screen and back door opening type) and British Ross Tang leachers (18 or 20 grids, front door opening type with false bottom), Germany type cardousel leachers (16 or 18 grids fixed grid bottom type), Germany type CKET (double layer 16 or 18 grids fixed grid bottom), American FRENCH leachers (fixed basket bucket horizontal rotation type). Compare in prior art through the extraction of extractor nicotine in to nicotine raw materials for production, this application does not adopt the extractor to extract, but extracts through the concora rotation leacher. The rotary extractor can contain more nicotine production raw materials, and in the rotation process of the centrifugal cylinder, the nicotine production raw materials and the extraction solvent sprayed above the nicotine production raw materials can be uniformly distributed, and the extraction rate is higher. And in the rotation process of the centrifugal cylinder, when the extraction solvent is continuously sprayed and falls into the centrifugal cylinder for extraction, the extraction process is not interrupted, namely, certain extraction efficiency is ensured.

Furthermore, the extraction device is an extraction tank, the concentration device is a concentration tank, the back extraction device is a back extraction column, and the rectification device is a rectification tower. The extraction tank, the concentration tank, the back extraction column and the rectifying tower are common devices in the prior art. Pumping the obtained nicotine-containing extract into a continuous extraction tank containing sulfuric acid with a certain concentration for extraction, dissolving nicotine in sulfuric acid water, and separating the extraction solvent (such as No. 6 solvent oil) in the nicotine-containing extract during extraction and allowing the solvent to flow into a liquid storage tank. And stopping extracting when the pH value of the sulfuric acid water reaches a certain value to obtain the nicotine sulfate. Further, pumping nicotine sulfate into a concentration tank for concentration to obtain concentrated sulfuric acid for research. After concentrated nicotine sulfate is obtained, pumping the concentrated nicotine sulfate into a back extraction column for back extraction (the back extraction solvent can be No. 6 solvent naphtha), and obtaining an extracting solution containing high-concentration nicotine. And (3) feeding the extracting solution containing high-concentration nicotine into a rectifying tower for rectification to obtain the finished product nicotine. Further, the extract containing nicotine at a high concentration may be concentrated before the rectifying tower.

Further, the closed conveying mechanism comprises a scraper, an auger and/or a pipeline, wherein the periphery of the scraper is provided with a baffle.

Compared with the prior art, the invention has the beneficial effects that: the nicotine production system provided by the invention can correspond to the main process of industrial production of nicotine, and is convenient for industrial production of nicotine. More importantly, the extraction device, the enrichment facility, the reextraction device, the rectifier unit is non-exposed closed processing equipment, and on this basis, this application further through sealed feed arrangement, the leaching device that seals relatively (only through nicotine raw materials for production entry, extract solvent entry, nicotine raw materials for production waste residue export, nicotine extract that contains export provides the access way), seal the perfect relative seal of whole production process of fortune material mechanism, avoid including wherein alkalization process, the waste gas that the leaching process produced, smoke and dust pollutes the workshop environment, a relatively closed nicotine safety production system is provided, be convenient for realize closed, automatic production process, and the security is high. The invention is greatly improved in the feeding and waste residue discharging processes, is convenient for improving the production environmental conditions and promotes the automatic production. If seal feed arrangement through setting up the relative confined first conveying mechanism of transmission environment, second conveying mechanism, fermentation equipment for before the fermentation, the process all keeps comparatively confined environment in the fermentation, effectively prevents scattering of dust, waste gas in the production process, thereby keeps clean, friendly workshop environment, avoids producing healthy problem to workshop staff. Like waste residue processing apparatus again, through waste residue processing apparatus in this application, the waste residue need not concentrate on a certain department and pile up, and wherein conveyer upper surface is equivalent to a plurality of positions of piling up, the horizontal space of make full use of. Automatic circular flow and treatment of waste residues can be realized through the cooperation of the return conveying device and the storage tank, manual monitoring is not needed, pipelines and baffles are conveniently arranged on the whole system, a fully-closed automatic treatment system is formed, and the waste residues are exposed only when the waste residues are released after the collecting vehicle is in place.

Drawings

Figure 1 is a schematic view of a nicotine production system according to the present invention.

FIG. 2 is a schematic structural diagram of a closed feeding device of the present invention.

Fig. 3 is a partial structure schematic diagram of a closed conveyor belt mechanism in the closed feeding device.

Fig. 4 is a schematic view of a saddle wheel structure in the closed feeding device of the invention.

FIG. 5 is a schematic view showing the composition of a waste residue treatment apparatus according to the present invention.

FIG. 6 is a schematic view (I) illustrating the combination of a storage tank and a collection vehicle in the waste residue treatment apparatus according to the present invention.

FIG. 7 is a schematic view showing the combination of a storage tank and a collection vehicle in the waste residue treatment apparatus according to the present invention.

FIG. 8 is a schematic view showing the driving direction of the waste residue in the waste residue treatment apparatus according to the present invention.

Description of the drawings: the closed feeding system 100, the first conveying mechanism 101, the first housing 1011, the first helical blade 1012, the first feeding hole 1013, the first discharging hole 1014, the second conveying mechanism 102, the second housing 1021, the first scraper 1022, the second feeding hole 1023, the second discharging hole 1024, the water discharging hole 1025, the fermentation equipment 103, the fermentation cavity 1031, the fermentation inlet 1032, the negative pressure exhaust mechanism 1033, the fermentation outlet 1034, the stirring equipment 104, the stirring outer housing 1041, the stirring blade 1042, the stirring material inlet 1043, the stirring material outlet 1044, the stirring tank 1045, the blanking channel 1046, the closed conveyor belt mechanism 105, the third housing 1051, the third conveyor belt 1052, the third feeding hole 1053, the third discharging hole 1054, the first synchronizing wheel 1055, the second synchronizing wheel 1056, the third synchronizing wheel 1057, the arc-shaped hole 1058, the outlet hole 1059, the negative pressure device 10510, the collection maintenance equipment 106, the collection cavity 1061, the maintenance door 1062, the fourth conveying mechanism 107, the second conveying mechanism 1022, the second scraper 1022, the second feeding hole 1023, the third stirring tank 1043, the third stirring tank 1043, the third stirring tank, the third stirring tank, the stirring tank, A fourth housing 1071, a fourth helical blade 1072, a fourth feed inlet 1073, a fourth discharge outlet 1074, a return conveying device 1, a material storage tank 2, an opening and closing door 3, a high-position conveying device 4, a low-position conveying device 5, a vertical conveying device 6, a discharge pipeline 7, an upper cone mouth 71, a lower cone mouth 72, a positioning sleeve 8, a material receiving hopper 9, a lifting device 10, a pulley 11 and a collection vehicle stopping chamber 12.

Detailed Description

The drawings are only for purposes of illustration and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

The utility model provides a nicotine production system, as shown in figure 1, includes the feed arrangement, leaching device, extraction device, enrichment facility, back extraction device, the rectifier unit that distribute in proper order from upper reaches to low reaches and the fortune material mechanism between each device, feed arrangement is used for mixing the required nicotine raw materials for production of low reaches leaching device, leaching device is including leaching the cavity and setting up the nicotine raw materials for production entry, extraction solvent entry, nicotine raw materials for production waste residue export, the nicotine extract export of containing on leaching the cavity, and the nicotine raw materials for production waste residue that produces after nicotine raw materials for production and the extraction solvent interact, the nicotine extract of containing are respectively through nicotine raw materials for production waste residue export, the nicotine extract export of containing export is discharged, and the nicotine extract of containing is through extraction device, enrichment facility, back extraction device, the rectifier unit processing back extraction device of low reaches and produces the nicotine finished product.

As shown in fig. 2 to 4, the closed feeding device 100 includes a first conveying mechanism 101, a second conveying mechanism 102, and a fermentation apparatus 103, wherein the first conveying mechanism 101 includes a closed first housing 1011, and a first helical blade 1012 disposed in the first housing 1011 and driven to screw and convey materials, and the first housing 1011 is provided with a first feeding port 1013 and a first discharging port 1014; the second conveying mechanism 102 includes a closed second casing 1021, and a plurality of first scrapers 1022 disposed in the second casing 1021 and driven to move and convey the material, wherein the second casing 1021 is provided with a second feeding port 1023 and a second discharging port 1024; specifically, in this embodiment, the first conveying mechanism 101 is a screw conveyor, and the second conveying mechanism 102 is a scraper conveyor; the fermentation equipment 103 comprises a fermentation cavity 1031, and the fermentation cavity 1031 is provided with a fermentation inlet 1032 and a fermentation outlet 1034; the second inlet 1023 is sealed and connected to the first outlet 1014, the fermentation inlet 1032 is sealed and connected to the second outlet 1024, and a nicotine production material inlet (not shown) of the leaching device is connected to the downstream of the fermentation outlet 1034.

In combination with the prior art that the fermentation apparatus 103 generally has a high height, the second conveying mechanism 102 is disposed obliquely in this embodiment, the second inlet 1023 is disposed at the lower side, and the second outlet 1024 is disposed at the higher side. Meanwhile, since the first conveying mechanism 101 is also involved in the water transportation, in order to prevent the water from moving in the direction opposite to the transportation direction, the first conveying mechanism 101 is also provided in the present embodiment to be inclined, and the end of the first discharging hole 1014 is lower than the end of the first feeding hole 1013. In addition, in this embodiment, the included angle between the inclined first conveying mechanism 101 and the horizontal plane is 5-15 °.

In order to facilitate observing the inside of the closed feeding device, the embodiment further provides that the first shell 1011 and the second shell 1021 are transparent shells; in order to timely discharge waste gas generated in the fermentation process, the upper part of the fermentation equipment 103 is also provided with a negative pressure exhaust mechanism 1033 communicated with the outside.

Although the helical blade can also play a certain role in stirring and mixing, the possible mixing effect is not obvious, and for this reason, a stirring device 104 is further disposed between the first conveying mechanism 101 and the second conveying mechanism 102 in this embodiment, so as to sufficiently mix the materials, thereby facilitating the subsequent fermentation process. Specifically, the stirring device 104 includes a stirring outer shell 1041 with a hollow interior, and a stirring blade 1042 arranged in the stirring outer shell 1041, where the stirring outer shell 1041 is provided with a stirring material inlet 1043 and a stirring material outlet 1044; stirring material inlet 1043 is sealingly connected to first discharge port 1014, second feed inlet 1023 is sealingly connected to stirring material outlet 1046, and fermentation inlet 1032 is sealingly connected to second discharge port 1024. If the mode of intermittent type formula stirring material is adopted, get into the stirring process promptly and wait to stir the mode of accomplishing back reentrant second conveying mechanism 102, can reduce production efficiency, in order not to reduce production efficiency, this embodiment then realizes the stirring with the mode of unloading while stirring through set up stirred tank 1045, stirring vane 1042 on agitated vessel 104 upper portion to have the advantage of mixing and improvement production efficiency concurrently. Specifically, this embodiment is in agitated vessel 104 top is equipped with agitator tank 1045 that the opening faces up, be equipped with stirring vane 1042 in agitator tank 1045, be equipped with unloading passageway 1046 between agitator tank 1045 opening border and the stirring shell body 1041 inner wall, the material reaches stirring material export 1044 through stirring material entry 1043, agitator tank 1045, unloading passageway 1046. The height of the side wall of the stirring tank 1045 is 15-20 cm, and the height of the stirring blade 1042 is 5-15 cm.

Except for the trough structure with the conventional opening edge having the same height, the stirring trough 1045 can be arranged in the embodiment such that the height of the side wall of one side is lower than that of the side wall of the other side, so as to further improve the stirring efficiency. In addition, in order to facilitate the discharging, the inner wall of the stirring outer shell 1041 may be an arc-shaped sidewall with an arc-shaped opening facing the inside.

If the single first conveying mechanism 101 is used for long-distance conveying in a spiral conveying manner, the first conveying mechanism 101 is heavy in load and large in energy consumption, so that the service life of the first conveying mechanism 101 may be shortened, and the long-distance conveying effect is poor. And long-distance conveying is completed through the cooperation of belt conveying and the first conveying mechanism 101, so that the load of a single conveying mechanism is reduced, the conveying effect is promoted, and the structure is more stable. For this purpose, in this embodiment, a closed conveyor belt mechanism 105 is further disposed upstream of the first conveying mechanism 101, the closed conveyor belt mechanism 105 includes a third closed housing 1051 and a third closed conveyor belt 1052, the third housing 1051 is provided with a third feeding port 1053 and a third discharging port 1054, the third discharging port 1054 is received on the second feeding port 1023, the third conveyor belt 1052 is in an arc shape with an upward opening in a cross section perpendicular to the conveying direction, and the material sequentially passes through the third feeding port 1053, the conveyor belt and the third discharging port 1054 and reaches the second feeding port 1023. The closed conveying belt mechanism 105 can be used for feeding powdery and granular raw and auxiliary materials, the first conveying mechanism 101 can be used for feeding water, and the conveying and mixing of the materials can be realized by connecting the closed conveying belt mechanism and the first conveying mechanism. The material inlet of the corresponding feed inlet of each conveying structure can be designed and selected according to the requirement.

Specifically, the closed belt mechanism 105 is realized by the following structure: comprises a closed third housing 1051, a third conveyor 1052, a first synchronizing wheel 1055, a second synchronizing wheel 1056, a third synchronizing wheel 1057; a third feed port 1053 and a third discharge port 1054 are respectively arranged at two ends of the third housing 1051, the third discharge port 1054 is connected to the first feed port 1013, an end face of the third housing 1051 near the third feed port 1053 is provided with an arc hole 1058 with an upward arc opening, a bottom surface near one side of the third discharge port 1054 is provided with an outlet hole 1059, and the outlet hole 1059 is closer to the first synchronizing wheel 1055 than the third synchronizing wheel 1057 in the horizontal direction; the first synchronizing wheel 1055 is arranged outside the third shell 1051 and at one side of the arc-shaped hole 1058, and the top end of the first synchronizing wheel is higher than the arc-shaped hole 1058; the second synchronizing wheel 1056 is arranged at one side of the third shell 1051 close to the third discharge port 1054, and the second synchronizing wheel 1056 is a saddle wheel; the third synchronizing wheel 1057 is disposed outside the third housing 1051, the bottom end of the third synchronizing wheel 1057 is lower than the third housing 1051, and the third belt 1052 sequentially passes through the first synchronizing wheel 1055, the arc-shaped hole 1058, the second synchronizing wheel 1056, the exit hole 1059, the third synchronizing wheel 1057, and the first synchronizing wheel 1055. To reduce wear on the third belt 1052, the edges of the arcuate apertures 1058 and 1059 are provided with a plurality of balls. For convenience of illustration, the arcuate apertures 1058 and 1059 are shown in block form in FIG. 2, the arcuate aperture arrangement 1058 is shown in FIG. 3, FIG. 3 is a schematic view of a portion of the third housing 1051 and the third belt 1052, and the second synchronizing wheel 1056 is shown in FIG. 4.

Since the arc holes 1058 and 1059 provide the space for moving the conveyor belt, there is a gap, and in order to avoid the dust and exhaust gas from overflowing, the third housing 1051 is further connected to a negative pressure device 10510 for communicating the inner cavity of the third housing 1051 with the outdoor environment.

Specifically, the collecting and maintaining device 106 is further included in this embodiment, the collecting and maintaining device 106 includes a collecting cavity 1061 with an upward opening, a maintaining door 1062 is disposed on one side of the collecting cavity 1061, the feeding port side of the second conveying mechanism 102 is carried in the collecting cavity 1061, and a drain hole 1025 is disposed at the bottom end of the feeding port side of the second conveying mechanism 102. In order to avoid the blocking of the drain hole 1025, the second conveying mechanism 102 of the present embodiment is further provided with a recoil pump (not shown) on the side of the drain hole 1025 for dredging the drain hole 1025. In addition to collecting the discharge, a separate branch can also be collected and utilized for transport to the fermentation plant 103. For example, the bottom of the collection cavity 1061 of the present embodiment is provided with a water collection chamber, the water collection chamber is connected to a pump pressure pipeline, and water in the water collection chamber can be guided to the fermentation equipment 103 through the pump pressure pipeline.

In addition to the above-mentioned first conveying mechanism 101 being provided with the closed conveying mechanism 105 to implement upstream matching and shorten the conveying distance of a single conveying mechanism, the present embodiment can further shorten the required conveying length of each individual conveying mechanism by providing more than one fourth conveying mechanism 107 upstream of the closed conveying mechanism 105, and is more suitable for use in various environments and requirements. Specifically, more than one fourth conveying mechanism 107 which is sequentially sealed and received can be arranged at the upstream of the closed conveying belt mechanism 105, the fourth conveying mechanism 107 comprises a closed fourth housing 1071 and a fourth helical blade 1072 which is arranged in the fourth housing 1071 and is driven to screw and convey materials, and a fourth feeding port 1073 and a fourth discharging port 1074 are arranged on the fourth housing 1071; and/or the fourth conveying mechanism 107 comprises a closed fourth housing 1071 and a plurality of fourth scrapers which are arranged in the housing and driven to move and convey materials, wherein a fourth feeding hole 1073 and a fourth discharging hole 1074 are formed in the fourth housing 1071; and/or, the fourth conveying mechanism 107 includes a closed fourth housing 1071 and a fourth conveyor belt, the fourth housing 1071 is provided with a fourth feed port 1073 and a fourth discharge port 1074, the shape of the fourth conveyor belt on the cross section perpendicular to the conveying direction is an arc with an upward opening, and the material reaches the fourth discharge port 1074 through the fourth feed port 1073 and the fourth conveyor belt in sequence. In this embodiment, a fourth transmission mechanism having the same structure as the first transmission mechanism is adopted before the conveyor belt is closed, so as to further shorten the transmission distance required by each transmission mechanism individually. Specifically, in this embodiment, the first housing 1011, the second housing 1021, the third housing 1051, and the fourth housing 1071 are all rectangular solids.

Regarding waste residue processing apparatus, as shown in fig. 5, 6, including passback conveyer 1, hold material pond 2, collection vehicle (not shown in the figure), passback conveyer 1 receives top waste residue and conveys to holding material pond 2 and/or remain and continue the transmission on passback conveyer 1, as shown in fig. 5, 8, hold material pond 2 bottom and be equipped with the opening and shutting door 3 that matches with the opening, opening and shutting door 3 just releases the waste residue in holding material pond 2 behind the collection vehicle is located the opening and shutting door, specifically, opening and shutting door 3 adopts the hydraulic pressure that controls the switching to open and shut the door, and the collection vehicle includes the automobile body and sets up the receiving hopper 9 on the automobile body.

The postback conveyer comprises a high-position conveyer 4, a low-position conveyer 5 and a vertical conveyer 6, the material storage pool 2 is arranged between the high-position conveyer 4 and the low-position conveyer 5, an opening of the material storage pool 2 is connected below the high-position conveyer 4, the low-position conveyer 5 is connected below the material storage pool opening 2, the opening and the waste residues form an inclined plane between the high-position conveyer 4 and the low-position conveyer 5 when the space of the material storage pool 2 is filled up, and the vertical conveyer 6 is used for receiving the waste residues on the low-position conveyer 5 and conveying the waste residues to the high-position conveyer 4. In this embodiment, the high-position conveying device 4 and the low-position conveying device 5 are flat scrapers, the vertical conveying device 6 is a vertical scraper, and the high-position conveying device 4 is located higher than the low-position conveying device 5.

As shown in fig. 6 and 7, in this embodiment, a discharge pipe 7 with an elliptical cross section is arranged below the storage tank 2, the discharge pipe 7 includes an upper tapered opening 71 and a lower tapered opening 72 connected to the upper tapered opening, and waste residue in the storage tank is discharged sequentially through the opening and closing door 3, the upper tapered opening 71 and the lower tapered opening 72.

For more accurate blanking and guarantee great blanking region, this embodiment is in the cover is equipped with elastic position sleeve 8 on ejection of compact pipeline 7, and 8 bottoms of position sleeve are less than down the cone mouth 72 bottom, are lower in the receiving hopper 9 opening border of collection vehicle.

When waste residues are released, the lower end of the positioning sleeve 8 is a contraction opening which is close to the middle, and the contraction opening is opened outwards after being stressed, as shown in fig. 6 and 7. I.e. is flared outwardly when the slag is released. Meanwhile, in order to avoid the problem that the waste residue cannot be continuously discharged after being accumulated at a certain height because the distance between the positioning sleeve and the bottom surface of the receiving hopper is unchanged, a lifting device 10 is arranged on one side of the positioning sleeve 8 close to the upper conical opening 71, and the lifting device 10 is used for lifting the positioning sleeve 8 upwards to shorten the length of the positioning sleeve 8 extending downwards relative to the bottom end of the lower conical opening 72. Specifically, in this embodiment, in order to make the pulling process still fit the discharging pipeline 7, a pulley 11 is disposed outside the fixed outer sleeve 8, and the pulley 11 is located at a connection position of the upper cone opening 71 and the lower cone opening 72.

Besides matching with the collecting hopper 9 of the collecting vehicle through the discharging pipeline 7 and the positioning sleeve 8, the alignment of the collecting hopper 9 and an upper waste residue releasing outlet can be promoted on one side of the collecting vehicle, the collecting vehicle stopping chamber 12 is arranged below the material storage pool 2, the bottom of the collecting vehicle stopping chamber 12 is provided with a wheel pair sensor, and the bottom surface of the collecting vehicle stopping chamber 12 extends outwards to form a travelling guide line and/or a travelling guide rail, so that the collecting vehicle can be guided to stop at the optimal collecting position.

Because the return transmission device 1 has the processes of continuous transmission and automatic feeding in the material storage pool 2, the automatic accumulation and treatment of the waste residue can be realized, and baffles can be formed above and at two sides of the return transmission device 1 and the material storage pool 2 to form a closed channel, thereby avoiding the exposure of the waste residue and reducing the adverse effects of harmful gas and the like in the waste residue.

Meanwhile, in order to automatically detect waste residues and receive the waste residues in the idle area, the embodiment further comprises a waste residue entering detector and a transmission speed controller of the return transmission device, wherein the waste residue entering detector detects whether waste residues are about to fall into the return transmission device, a plurality of gravity sensors are distributed on the return transmission device, and the transmission speed controller controls the transmission speed of the return transmission device according to signals of the gravity sensors and the waste residue entering detector, so that the surface idle area is matched with the waste residues about to be received.

Specifically, in addition to the material storage tank 2 being a part of the feeding back conveyor 1, it can be independent of the feeding back conveyor 1, for example, the material storage tank 2 is disposed below the feeding back conveyor 1, and the system further includes a pushing structure for pushing the waste residue on the feeding back conveyor into the material storage tank when the material storage tank 1 is empty.

The implementation principle is as follows: as shown in fig. 8, the waste slag falls onto the high-level conveyor 4 after being output, the high-level conveyor 4 conveys the waste slag to the storage tank 2, and if the storage tank 2 is not filled at this time, the waste slag enters the storage tank 2 and waits for the collection vehicle to be in place; if the material storage pool 2 is in an unfilled state, the waste slag enters and is filled to be completely filled, the residual unfilled waste slag is transferred to the low-level conveying device 5 under the action of an inclined surface, and when the material storage pool 2 has a filling space next time, the waste slag which passes through the low-level conveying device, the vertical conveying device 6 and the high-level conveying device 4 enters the material storage pool 2; if the waste slag reaches the storage tank 2, the storage tank 2 is completely filled, and the waste slag enters the low-level conveying device, and is filled into the storage tank 2 again through the vertical conveying device 6 and the high-level conveying device 4 at the next time. For convenience of illustration, the flat transport structure is replaced by a straight line in fig. 5 and 8. When the collection vehicle is in place, the opening and closing door 3 can be opened to release the waste slag. The waste slag enters a receiving hopper 9 of the collecting vehicle through a discharge pipeline 7 and a positioning sleeve 8 shown in the figures 6 and 7.

In the above process, the return conveyor 1 is constantly ready to accept the new slag and drives the conveyor to provide a controlled area for the new slag to fall. Namely, the receiving of the waste slag and the filling of the waste slag can be simultaneously carried out.

Fig. 8 schematically shows a layered structure of the return conveyor 1 and the collection vehicle parking space 12, and the upper conveyor 4 and the lower conveyor 5 can be located at the same level F1 when the storage tank 2 does not occupy much space in the longitudinal direction. Collection cart residence chamber 12 is located in a layer F2. When the material storage pool 2 occupies a large space in the longitudinal direction, the high-level conveying device 4 and the low-level conveying device 5 can also be located at different levels, such as the high-level conveying device 4 is located at the level F1, the low-level conveying device 5 is located at the level F2, and the vertical conveying device penetrates through the levels F1 and F2.

Specifically, the leaching device in this embodiment is a flat rotation leaching device. The flat-turning leacher comprises a spray header and a centrifugal cylinder, a plurality of storage grids are arranged at the bottom of the centrifugal cylinder, the spray header is arranged above the storage grids, and the storage grids are used for placing nicotine production raw materials mixed by a closed feeding device. The nicotine production raw material falls into the centrifugal cylinder of the flat-turn leacher from the nicotine production raw material inlet, and is filled in the storage grid in the rotation process of the centrifugal cylinder. The spray header is connected with an extraction solvent inlet, and the extraction solvent is sprayed above the storage grid. The nicotine production raw material waste residue outlet and the extracting solution outlet are arranged at the bottom of the grid, and the nicotine production raw material waste residue and the nicotine-containing extracting solution are respectively discharged after extraction is finished. Further, the horizontal rotation leacher comprises domestic JP type small and medium sized leachers (18 grids, false bottom with screen and back door opening type) and British Ross Tang leachers (18 or 20 grids, front door opening type with false bottom), Germany type cardousel leachers (16 or 18 grids fixed grid bottom type), Germany type CKET (double layer 16 or 18 grids fixed grid bottom), American FRENCH leachers (fixed basket bucket horizontal rotation type).

The extraction device is an extraction tank, the concentration device is a concentration tank, the back extraction device is a back extraction column, and the rectification device is a rectification tower. The extraction tank, the concentration tank, the back extraction column and the rectifying tower are common devices in the prior art. Pumping the obtained nicotine-containing extract into a continuous extraction tank containing 10% sulfuric acid for extraction, dissolving nicotine in sulfuric acid water, and separating the extraction solvent (such as No. 6 solvent oil) in the nicotine-containing extract during extraction process and allowing the solvent to flow into a liquid storage tank. And stopping extracting when the pH value of the sulfuric acid water reaches a certain value to obtain the nicotine sulfate. Further, pumping nicotine sulfate into a concentration tank for concentration to obtain concentrated sulfuric acid for research. After concentrated nicotine sulfate is obtained, pumping the concentrated nicotine sulfate into a back extraction column for back extraction (the back extraction solvent can be No. 6 solvent naphtha), and obtaining an extracting solution containing high-concentration nicotine. And (3) feeding the extracting solution containing high-concentration nicotine into a rectifying tower for rectification to obtain the finished product nicotine. Further, the extract containing nicotine at a high concentration may be concentrated before the rectifying tower.

The closed material conveying mechanism comprises a scraper, an auger and/or a pipeline, wherein the periphery of the scraper is provided with a baffle, and the scraper, the auger and/or the pipeline are provided with corresponding inlets and outlets.

Example 2

The embodiment discloses an automatic treatment method of nicotine production waste residues, which is carried out by adopting a waste residue treatment device and comprises the following steps:

a1, the return transmission device 1 receives the waste slag and transmits the waste slag;

a2, when the waste slag is transmitted to pass through the material storage pool 2, if the material storage pool 2 is not completely filled, the waste slag is filled into the material storage pool 2; if the material storage tank 2 is completely filled, the residual unfilled waste residues are continuously transmitted, and the newly generated waste residues are received and filled after passing through the material storage tank 2 which is not completely filled;

a3, the collecting vehicle receives the signal that the storage tank 2 is completely filled and moves to the position below the storage tank 2 to collect the released waste slag.

Example 3

The embodiment discloses a building, and the building is provided with the waste residue treatment device. The waste residue treatment device is arranged in a building, and the arrangement of the components of the automatic treatment system is more convenient through the multi-layer structure of the building. And is convenient for independence and automation.

Specifically, including the basement building and set up in the multi-storey device installation building of basement building top, be equipped with collection vehicle in the basement building and stop room 12, all be equipped with the conveyer arrangement space of horizontal extension in the multi-storey device installation building, and still be equipped with the conveyer installation space of longitudinal extension between the adjacent device installation building, still be equipped with the transition layer building between basement building and the adjacent device installation building, hold material pond 2 and install in the transition layer building, and collection vehicle stops room 12 and is located and holds material pond 2 below. And a collecting vehicle entrance door is arranged in the collecting vehicle stopping room 12 in the bottom building, and the difference between the distance between the two side walls of the collecting vehicle entrance door and the width of the collecting vehicle is 0.5-0.8 m.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.

Claims (10)

1. A nicotine production system is characterized by comprising a closed feeding device, a leaching device, an extracting device, a concentrating device, a back-extracting device, a rectifying device and a closed material conveying mechanism among the devices which are distributed from upstream to downstream in sequence, the closed feeding device is used for mixing required nicotine raw materials for production of the downstream leaching device, the leaching device comprises a leaching cavity and a nicotine raw materials for production inlet, an extraction solvent inlet, a nicotine raw materials for production waste residue outlet and a nicotine-containing extract outlet which are arranged on the leaching cavity, nicotine raw materials for production waste residue generated after interaction of the nicotine raw materials for production and the extraction solvent, nicotine-containing extract are discharged through the nicotine raw materials for production waste residue outlet and the nicotine-containing extract outlet respectively, and the nicotine-containing extract is processed by a downstream extraction device, a concentration device, a back extraction device and a rectification device to produce a nicotine finished product.

2. The nicotine production system according to claim 1, wherein the closed feeding device comprises a first conveying mechanism, a second conveying mechanism and a fermentation device, the first conveying mechanism comprises a closed first shell and a helical blade arranged in the first shell and driven to spirally convey materials, and the first shell is provided with a first feeding hole and a first discharging hole; the second conveying mechanism comprises a closed second shell and a plurality of scrapers which are arranged in the second shell and driven to move to convey materials, and a second feeding hole and a second discharging hole are formed in the second shell; the fermentation equipment comprises a fermentation cavity, and a fermentation inlet and a fermentation outlet are arranged on the fermentation cavity; the sealed accepting of second feed inlet is under first discharge gate, the sealed accepting of fermentation entry is in under the second discharge gate, and fermentation export low reaches are accepted the nicotine raw materials for production entry that has leached the device.

3. The closed feeding system of claim 2, further comprising a closed conveyor belt mechanism, wherein the closed conveyor belt mechanism comprises a third closed housing and a third conveyor belt, the third housing is provided with a third feeding port and a third discharging port, the third discharging port is connected to the second feeding port, the third conveyor belt is in an arc shape with an upward opening in a cross section perpendicular to the conveying direction, and the material sequentially passes through the third feeding port, the third conveyor belt and the third discharging port to reach the second feeding port.

4. The closed feed system of claim 3, wherein the closed conveyor mechanism comprises a closed third housing, a third conveyor, a first synchronizing wheel, a second synchronizing wheel, a third synchronizing wheel; a third feeding hole and a third discharging hole are respectively formed in the two ends of the third shell, the third discharging hole is connected to the first feeding hole, an arc-shaped hole with an upward arc-shaped opening is formed in the end face of one end, close to the third feeding hole, of the third shell, and an outlet hole is formed in the bottom face of one side, close to the third discharging hole, of the third shell; the first synchronous wheel is arranged outside the third shell and on one side of the arc-shaped hole, and the top end of the first synchronous wheel is higher than the arc-shaped hole; the second synchronizing wheel is arranged on one side, close to the third discharge hole, in the third shell and is a saddle wheel; the third synchronizing wheel is arranged outside the third shell, the bottom end of the third synchronizing wheel is lower than the third shell, and the third conveyor belt sequentially passes through the first synchronizing wheel, the arc-shaped hole, the second synchronizing wheel, the outlet hole, the third synchronizing wheel and the first synchronizing wheel.

5. The nicotine production system according to claim 1, wherein a waste residue treatment device is received at a waste residue outlet downstream of the nicotine production raw material, the waste residue treatment device comprises a return conveying device, a material storage tank and a mobile collecting device, the return conveying device receives waste residue and conveys the waste residue into the material storage tank and/or retains the waste residue on the return conveying device after passing through the material storage tank, an opening and closing door is arranged at the bottom of the material storage tank, and the opening and closing door releases the waste residue in the material storage tank after the mobile collecting device is located under the opening and closing door.

6. The nicotine production system according to claim 5, wherein a discharge pipeline is arranged below the storage tank, the discharge pipeline comprises an upper conical opening and a lower conical opening connected with the upper conical opening, and waste residues in the storage tank are discharged sequentially through the opening and closing door, the upper conical opening and the lower conical opening.

7. A nicotine production system according to claim 5, wherein the return conveyor comprises a high conveyor, a low conveyor, and a vertical conveyor, the reservoir is disposed between the high conveyor and the low conveyor, the reservoir has an opening that forms a slope with the waste residue when the space is filled, and the vertical conveyor is configured to receive the waste residue from the low conveyor and convey the waste residue to the high conveyor.

8. A nicotine production system according to any one of claims 1 to 7, in which the extraction means is a pan extractor.

9. A nicotine production system according to any one of claims 1 to 7, wherein the extraction apparatus is an extraction tank, the concentration apparatus is a concentration tank, the back-extraction apparatus is a back-extraction column and the rectification apparatus is a rectification column.

10. The nicotine production system according to any one of claims 1 to 7, wherein the closed conveying mechanism comprises a scraper conveying mechanism, an auger conveying mechanism and/or a conveying pipeline, wherein the periphery of the scraper conveying mechanism is provided with a baffle.

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