CN110693068B - Device and method for preparing reconstituted tobacco by multi-point air inlet and air outlet thick slurry method - Google Patents
Device and method for preparing reconstituted tobacco by multi-point air inlet and air outlet thick slurry method Download PDFInfo
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- CN110693068B CN110693068B CN201911097188.5A CN201911097188A CN110693068B CN 110693068 B CN110693068 B CN 110693068B CN 201911097188 A CN201911097188 A CN 201911097188A CN 110693068 B CN110693068 B CN 110693068B
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a device for preparing reconstituted tobacco by a multi-point air inlet and air outlet thick slurry method,the device sequentially comprises a raw material storage tank (1), a forming and drying device (2), a stripping device (3) and a winding device (4), and the device is provided with a plurality of hot air fans (271) i ) The temperature and the hot air quantity of the hot air blown out by each hot air blower can be independently adjusted. Meanwhile, the outer cover (29) of the device is provided with the plurality of air outlet doors (28), so that the damp and hot air in the outer cover (29) can be effectively discharged from the air outlet doors (28) in the drying process, the phenomenon that the damp and hot air is accumulated in the outer cover (29) for a long time and can be condensed at the top of the outer cover (29) to form water drops is avoided, and the color consistency of reconstituted tobacco products is ensured.
Description
Technical Field
The invention belongs to the technical field of reconstituted tobacco production and processing, and particularly relates to a device and a method for preparing reconstituted tobacco by a multi-point air inlet and air outlet thick slurry method.
Background
Along with the acceleration of global tobacco control movement, the global tobacco industry enters a new period for seeking innovation and breakthrough, and further, the research and development of novel tobacco products mainly including heating non-burning cigarettes, electronic cigarettes, buccal cigarettes and the like are also promoted and accelerated. The heating of non-combustible cigarettes is an important component of new tobacco products.
Compared with granular and traditional tobacco shreds used as tobacco segment materials, the reconstituted tobacco has the characteristics of strong plasticity, high homogenization and high adjustable level while keeping the active ingredients of natural tobacco, so that the reconstituted tobacco is one of the main tobacco segment materials of the prior heating non-combustible cigarettes.
When the thick slurry reconstituted tobacco is formed on a sheet base, materials such as tobacco raw material powder, an adhesive, a fuming agent and the like are uniformly distributed on the surface layer and the inner layer of the sheet base, so that the thickness, the quantitative stability, the heat conduction uniformity and the fuming effect of the thick slurry reconstituted tobacco are good, and the thick slurry reconstituted tobacco is one of main reasons for heating a tobacco section material of a non-combustible cigarette. Such as: the tobacco rods developed by the Feimo tobacco company are reconstituted tobacco by adopting an orderly arranged thick slurry method.
In the drying stage of preparing reconstituted tobacco by thick slurry method in the prior art, the lower part of a conveyer belt is utilized to heat and heat, so that the moisture in the slurry film spread on the conveyer belt is evaporated and overflowed into an upper ventilation tunnel due to heating, and the evaporated moisture is carried out of the equipment by hot air with the opposite (countercurrent) direction to the conveying direction of the slurry film, so as to realize the dehydration process requirement. The problem is that the hot air inlet is only one, and the closer to the initial section of the drying process, the hot air absorbs a large amount of moisture, so that the weaker the moisture absorption capacity is, and the drying efficiency is poor.
On the other hand, in the prior art, the drying stage for preparing reconstituted tobacco by a thick slurry method is only provided with an air outlet, moisture in a slurry film is absorbed by hot air in the drying process, the humidity is gradually increased to form hot and humid air, and the hot and humid air is accumulated in an outer cover of the drying stage for a long time to be condensed on the top of the outer cover to form water drops. In addition, the controllability of drying conditions in the drying process is poor, so that the water content of different areas of the reconstituted tobacco product is different, and the color consistency of the reconstituted tobacco product is poor.
Therefore, the device for preparing the reconstituted tobacco for heating the incombustible cigarettes by the thick slurry method is hoped to be developed, so that the research and development efficiency of the reconstituted tobacco for heating the incombustible cigarettes is improved, the research and development cost is reduced, and the support is provided for popularization and application of the reconstituted tobacco for heating the incombustible cigarettes.
Disclosure of Invention
The invention provides a device for preparing reconstituted tobacco by a multi-point air inlet and air outlet thick slurry method, which sequentially comprises a raw material storage tank 1, a forming and drying device 2, a stripping device 3 and a winding device 4;
the forming and drying device 2 comprises a forming steel belt 21, an infrared heating plate 24, a feeding pump 22, a head box 23, a moisture discharging port 25, a temperature and humidity detector 26, a drying device 27 and a housing 29 which are sequentially arranged;
the feeding pump 22 is connected with the storage tank 1 and is used for conveying slurry to the forming and drying device 2;
the headbox 23 is located above the profiled steel strip 21, the headbox 23 comprising a slurry outlet 231 and a slurry doctor 232;
the infrared heating plate 24 is positioned below the formed steel strip 21 and is used for heating the formed steel strip 21;
the formed steel belt 21 carries the reconstituted tobacco to move towards the stripping unit 3, one end of the formed steel belt 21, which is close to the feed pump 22, is called a starting end, and the end of the formed steel belt, which is close to the stripping unit 3, is called a terminating end;
the drying equipment 27 comprises N hot air fans 271 which are sequentially arranged from the side of the temperature and humidity detector 26 to the side of the stripping device 3 i N is greater than or equal to 2, i is the number of the hot air blower from the temperature and humidity detector 26, and i is a positive integer from 1 to N; each of the housesThe hot air fan 271 i A vent tube 272 extending in a direction perpendicular to the profiled steel strip 21 toward the profiled steel strip 21 is connected i Each of the ventilation pipes 272 i Is provided with a nozzle 273 i The direction of the blown hot air is perpendicular to the running direction of the reconstituted tobacco;
the outer cover 29 is provided with a plurality of air outlet doors 28, the air outlet doors 28 are positioned on the front surface, the back surface or the top surface of the outer cover 29, one surface of the outer cover 29 parallel to the formed steel strip 21 is the top surface of the outer cover 29, and the surface of the outer cover 29 perpendicular to the formed steel strip 21 and extending from the starting end of the formed steel strip 21 to the ending end of the formed steel strip 21 is the front surface or the back surface of the outer cover 29; preferably, the number of air outlet doors 28 and the hot air blower 271 i Is the same in number and each hot air blower 271 i The air outlet door 28 is distributed near the initial end of the forming steel belt 21, and the air outlet door 28 and the moisture discharging opening 25 are used for discharging hot and humid air after the hot air in the outer cover 29 absorbs moisture, and the difference between the two is that the moisture discharging opening 25 is a hole penetrating the outer cover 29 and is always in an open ventilation state, and the air outlet door 28 can be automatically selected to be opened or closed according to the condition of the hot and humid air in the outer cover 29 in the actual drying process.
The peeling unit 3 includes a peeling blade 32 and a thickness adjustment roller 31; the thickness adjustment roller 31 includes an upper pressing roller 311 and a lower carrier roller 312;
the winding unit 4 comprises a winding table 41 and a winding shaft 42.
Preferably, as i increases, the orifice 273 i The distance from the profiled strip 21 gradually decreases.
Preferably, as i increases, each of the ventilation tubes 272 i Is provided with a nozzle 273 i The temperature and the air quantity of the blown hot air are gradually reduced.
The second aspect of the invention provides a forming and drying method for preparing reconstituted tobacco by using the multi-point air inlet and air outlet thick slurry method, which comprises the following steps:
a. starting a feed pump 22 to convey the slurry uniformly stirred in the raw material storage tank 1 into a head box 23, and automatically adding according to the set liquid level height;
b. starting the horizontal operation of the formed steel belt 21, starting an infrared heating plate 24 to heat the formed steel belt 21, setting the temperature of the formed steel belt 21 to be 30-50 ℃, controlling slurry in a head box 23 to flow out of a slurry outlet 231 through a slurry scraper 232 after the temperature of the formed steel belt 21 reaches the set temperature of 30-50 ℃, starting coating and forming, and drying the flowing slurry through the formed steel belt 21 to form a slurry film;
c. according to the set temperature of the hot air, the hot air fan 271 is turned on i Each of the hot air blower 271 i A vent tube 272 extending in a direction perpendicular to the profiled steel strip 21 toward the profiled steel strip 21 is connected i Each of the ventilation pipes 272 i Is provided with a nozzle 273 i The blown hot air direction is perpendicular to the running direction of the reconstituted tobacco, the serosa runs along with the formed steel belt 21 to the stripping device 3 and passes through the pipe orifice 273 i Drying the blown hot air to form reconstituted tobacco;
d. the moisture discharging port 25 is a hot air outlet, the temperature and humidity detector 26 measures the temperature and the moisture content of the surface of the serosa in real time, and the hot air fan 271 is regulated according to the temperature and the moisture content of the surface of the serosa i The hot air quantity and the hot air temperature of the formed steel belt 21 and the opening degree of the moisture discharging opening 25 so that the moisture content of the reconstituted tobacco on the side of the formed steel belt 21 close to the stripping unit 3 is 12% -14%;
e. the peeling scraper 32 peels the reconstituted tobacco on the side, close to the peeling unit 3, of the formed steel belt 21 from the formed steel belt 21, the peeled reconstituted tobacco undergoes thickness adjustment through the thickness adjustment roller 31, and if the thickness of the reconstituted tobacco is greater than the set thickness, the upper pressing roller 311 and the lower supporting roller 312 of the thickness adjustment roller 31 are matched with each other, and the reconstituted tobacco is rolled;
f. the reconstituted tobacco subjected to thickness adjustment is conveyed to a winding table 41, and wound on a winding shaft 42 for winding.
And after the rolling is finished, repeating the process to prepare a reconstituted tobacco sample for the next time.
The third aspect of the invention provides a method for controlling the color consistency of reconstituted tobacco, namely selecting the device of the first aspect of the invention to prepare the reconstituted tobacco.
In the drying process of the existing reconstituted tobacco drying device, not only is the loss of flavor substances in slurry avoided, but also good drying effect is ensured, and the moisture content of reconstituted tobacco is ensured, so that the drying process is consistent with the principle of low-temperature slow baking, which results in longer time of the whole drying stage and the hot air fan 271 at the stage i After a large amount of hot air is blown out to absorb the moisture of reconstituted tobacco, the humidity gradually increases to form damp and hot air, and the damp and hot air is accumulated in the outer cover 29 for a long time and can condense at the top of the outer cover 29 to form water drops, and the water drops drop on the reconstituted tobacco being dried, so that the color of the area where the water drops drop on the reconstituted tobacco drop off and the color of other areas of the reconstituted tobacco are obviously different, and the color consistency of the reconstituted tobacco product is poor.
The outer cover 29 of the device is provided with a plurality of air outlet doors 28, and the air outlet doors 28 are positioned on the front surface, the back surface or the top surface of the outer cover, wherein the surface of the outer cover 29 contacted with the formed steel strip 21 is called the bottom surface of the outer cover 29; preferably, the number of air outlet doors 28 and the hot air blower 271 i Is the same in number and each hot air blower 271 i An air outlet door 28 is distributed near one side of the initial end of the formed steel belt 21, hot and humid air in the outer cover 29 in the drying process can be effectively discharged from the air outlet door 28 in time, the phenomenon that the hot and humid air is accumulated in the outer cover 29 for a long time and is condensed at the top of the outer cover 29 to form water drops is avoided, the color consistency of reconstituted tobacco products is ensured, and meanwhile, the air outlet door 28 can be automatically selected to be opened or closed according to the condition of the hot and humid air in the outer cover 29 in the actual drying process.
Compared with the prior art, the invention has the following beneficial effects:
1. the device of the invention has a plurality of hot air fans 271 i The temperature and the quantity of hot air blown by each hot air blower can be independently regulated according to the temperature and moisture content data of the surface of the serosa measured in real time by the temperature and humidity detector 26, and the problem that the drying conditions in different drying stages are difficult to coordinate is solved. The device can mold, dry and prepare the reconstituted tobacco for the heating non-combustible cigarettes into samples, thereby meeting the preparation of the reconstituted tobacco for the heating non-combustible cigarettes and providing a support for the research of the heating non-combustible cigarettesAnd (5) supporting.
2. The device of the invention has a plurality of hot air fans 271 i I is the number of the hot air blower from the temperature and humidity detector 26, and i is a positive integer from 1 to N; each of the hot air blower 271 i A vent tube 272 extending in a direction perpendicular to the profiled steel strip 21 toward the profiled steel strip 21 is connected i Each of the ventilation pipes 272 i Is provided with a nozzle 273 i The direction of the blown hot air is perpendicular to the running direction of the reconstituted tobacco; meanwhile, the outer cover 29 of the device is provided with a plurality of air outlet doors 28, and the air outlet doors 28 are positioned on the front surface, the back surface or the top surface of the outer cover, wherein the surface of the outer cover 29 contacted with the formed steel strip 21 is called the bottom surface of the outer cover 29; the hot and humid air in the dustcoat 29 can be effectively discharged from the air outlet door 28 in the drying process, so that the long-time accumulation of the hot and humid air in the dustcoat 29 can be avoided, water drops can be formed by condensation at the top of the dustcoat 29, the color consistency of reconstituted tobacco products is ensured, and meanwhile, the air outlet door 28 can be automatically selected to be opened or closed according to the condition of the hot and humid air in the dustcoat 29 in the actual drying process. In the preferred embodiment of the present invention, the number of dampers 28 and the hot air blower 271 i Is the same in number and each hot air blower 271 i An air outlet door 28 is arranged near the initial end of the formed steel belt 21, that is, a hot air fan 271 during drying i The direction of the blown hot air is perpendicular to the running direction of the reconstituted tobacco, the humidity of the blown hot air is gradually increased to form hot and humid air after the moisture of the reconstituted tobacco is absorbed, and the hot and humid air is immediately discharged through the air outlet door 28 close to the starting end side of the formed steel belt 21, so that the phenomenon that the hot and humid air is accumulated in the outer cover 29 for a long time to form water drops by condensation at the top of the outer cover 29 can be avoided, the hot air utilization rate and the drying rate of the reconstituted tobacco can be improved, and the drying effect of the reconstituted tobacco is ensured.
3. In a preferred embodiment of the invention, the orifice 273 increases with i i The distance from the profiled strip 21 gradually decreases, if all nozzles 273 are present during the drying process i The same distance as the profiled strip 21 results in all orifices 273 i The hot air is blown out in a water closer to the strip 21On the flat layer, after drying for a period of time, the layer is saturated with hot air moisture, and the air above the layer can not dry, at the same time, the slurry in the later stage of drying has low moisture content, and is not easy to dry, and the pipe orifice 273 of the device of the invention i The distance from the forming strip 21 gradually decreases, and the nozzle 273 is opened i The blown hot air forms different hot air horizontal layers in the outer cover 29, so that the air utilization rate is high, and the closer to the terminal end of the formed steel belt 21, the distance between the hot air and the reconstituted tobacco is closer, and the drying effect of the reconstituted tobacco in the later stage of drying is effectively improved.
4. The device of the invention has a plurality of hot air fans 271 i I is the number of the hot air blower from the temperature and humidity detector 26, and i is a positive integer from 1 to N; each of the hot air blower 271 i A vent tube 272 extending in a direction perpendicular to the profiled steel strip 21 toward the profiled steel strip 21 is connected i Each of the ventilation pipes 272 i Is provided with a nozzle 273 i The direction of the blown hot air is perpendicular to the running direction of the reconstituted tobacco; in a preferred embodiment of the present invention, each of the ventilation tubes 272 increases as i increases i Is provided with a nozzle 273 i The temperature of the blown hot air and the air quantity of the hot air are gradually reduced, that is, the moisture content in the slurry is high in the initial stage of drying (the stage of forming a slurry film by the slurry), and a large amount of hot air is needed to take away the moisture in the slurry, so that the air quantity of the hot air above the slurry is large, the moisture content of the reconstituted tobacco is small in the later stage of drying (the preliminary formation of reconstituted tobacco sheets), a large amount of hot air is not needed, and the drying efficiency is improved by adopting a mode of blowing perpendicular to the reconstituted tobacco sheets, so that the air quantity of the hot air above the reconstituted tobacco sheets is small, the drying effect of the later stage of drying of the reconstituted tobacco can be ensured, and the hot air utilization rate can be improved.
Drawings
FIG. 1 is a schematic diagram of an incremental hot air countercurrent drying apparatus in the prior art;
fig. 2 is a schematic diagram of an apparatus for preparing reconstituted tobacco by a multi-point air inlet and outlet thick slurry method according to the invention.
Wherein, the names of the reference numerals in the description of the drawings are as follows: 1-raw material storage tank and 2-formingDrying device, 3-stripping device, 4-winding device, 5-conveyor belt, 6-ventilation tunnel, 7-air supply pipeline, 8-air outlet, 21-molding steel belt, 22-feeding pump, 23-headbox, 24-infrared heating plate, 25-moisture discharge port, 26-temperature and humidity detector, 27-drying equipment, 28-air outlet door, 29-housing, 31-thickness regulating roller, 32-stripping scraper, 41-winding table, 42-winding shaft, 271 i -hot air blower, 272 i Ventilation pipe, 273 i Nozzle, 1111-first vent, 2222-second vent, 3333-third vent, 4444-fourth vent.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings. It is evident that the figures in the following description are only some embodiments of the invention, from which other figures can be obtained without inventive effort for a person skilled in the art.
The embodiment is a device for preparing reconstituted tobacco by a multi-point air inlet and air outlet thick slurry method, which sequentially comprises a raw material storage tank 1, a forming and drying device 2, a stripping device 3 and a winding device 4;
the forming and drying device 2 comprises a forming steel belt 21, an infrared heating plate 24, a feeding pump 22, a head box 23, a moisture discharging port 25, a temperature and humidity detector 26, a drying device 27 and a housing 29 which are sequentially arranged;
the feeding pump 22 is connected with the storage tank 1 and is used for conveying slurry to the forming and drying device 2;
the headbox 23 is located above the profiled steel strip 21, the headbox 23 comprising a slurry outlet 231 and a slurry doctor 232;
the infrared heating plate 24 is positioned below the formed steel strip 21 and is used for heating the formed steel strip 21;
the formed steel belt 21 carries the reconstituted tobacco to move towards the stripping unit 3, one end of the formed steel belt 21, which is close to the feed pump 22, is called a starting end, and the end of the formed steel belt, which is close to the stripping unit 3, is called a terminating end;
the drying device 27 comprises 3 devices which are sequentially arranged from the side of the temperature and humidity detector 26 to the side of the stripping device 3Hot air blower 271 i I is the number of the hot air fan from the temperature and humidity detector 26, and i is 1, 2 and 3; each of the hot air blower 271 i A vent tube 272 extending in a direction perpendicular to the profiled steel strip 21 toward the profiled steel strip 21 is connected i Each of the ventilation pipes 272 i Is provided with a nozzle 273 i The direction of the blown hot air is perpendicular to the running direction of the reconstituted tobacco;
the outer cover 29 is provided with 3 air outlet doors 28; the air outlet door 28 is located on the front or back of the outer cover 29, one surface of the outer cover 29 parallel to the forming steel strip 21 is the top surface of the outer cover 29, and the surface of the outer cover 29 perpendicular to the forming steel strip 21 and extending from the starting end of the forming steel strip 21 to the ending end of the forming steel strip 21 is the front or back of the outer cover 29; each hot air fan 271 i A vent 28 is provided near the start of the strip 21.
The peeling unit 3 includes a peeling blade 32 and a thickness adjustment roller 31; the thickness adjustment roller 31 includes an upper pressing roller 311 and a lower carrier roller 312;
the winding unit 4 comprises a winding table 41 and a winding shaft 42.
As i increases, the orifice 273 i The distance from the profiled strip 21 is gradually reduced, wherein the orifice 273 1 The distance from the formed steel strip is 70cm, and the pipe orifice 273 2 The distance from the formed steel strip is 45cm, and the pipe orifice 273 3 The distance from the formed steel strip was 10cm.
As i increases, each of the ventilation tubes 272 i Is provided with a nozzle 273 i The temperature and the air quantity of the blown hot air are gradually reduced.
The device for preparing reconstituted tobacco by using the multi-point air inlet and air outlet thick slurry method has the following operation processes:
before the device is started, the thickness and the moisture of a sample are firstly set according to the development requirement of a reconstituted tobacco sample for heating non-combustible cigarettes by a thick slurry method.
The forming and drying method for preparing reconstituted tobacco by using the multi-point air inlet and air outlet thick slurry method comprises the following steps:
a. starting a feed pump 22 to convey the slurry uniformly stirred in the raw material storage tank 1 into a head box 23, and automatically adding according to the set liquid level height;
b. starting the horizontal operation of the formed steel belt 21, starting an infrared heating plate 24 to heat the formed steel belt 21, setting the temperature of the formed steel belt 21 to be 30-50 ℃, controlling slurry in a head box 23 to flow out of a slurry outlet 231 through a slurry scraper 232 after the temperature of the formed steel belt 21 reaches the set temperature of 30-50 ℃, starting coating and forming, and drying the flowing slurry through the formed steel belt 21 to form a slurry film;
c. setting hot air fan 271 1 The hot air temperature is 105 ℃, and the hot air quantity is 3500m 3 /min, set hot air fan 271 2 The hot air temperature is 100 ℃, and the hot air quantity is 3000m 3 /min, set hot air fan 271 3 The hot air temperature is 90 ℃, and the hot air quantity is 2500m 3 /min, turn on hot air fan 271 1 、271 2 、271 3 Each of the hot air blower 271 i A vent tube 272 extending in a direction perpendicular to the profiled steel strip 21 toward the profiled steel strip 21 is connected i Each of the ventilation pipes 272 i Is provided with a nozzle 273 i The blown hot air direction is perpendicular to the running direction of the reconstituted tobacco, the serosa runs along with the formed steel belt 21 to the stripping device 3 and passes through the pipe orifice 273 i Drying the blown hot air to form reconstituted tobacco;
d. the moisture discharging port 25 is a hot air outlet, the temperature and humidity detector 26 measures the temperature and the moisture content of the surface of the serosa in real time, and the hot air fan 271 is properly regulated according to the temperature and the moisture content of the surface of the serosa i The hot air quantity and the hot air temperature of the formed steel belt 21 and the opening degree of the moisture discharging opening 25 so that the moisture content of the reconstituted tobacco on the side of the formed steel belt 21 close to the stripping unit 3 is 12% -14%;
e. the peeling scraper 32 peels the reconstituted tobacco on the side, close to the peeling unit 3, of the formed steel belt 21 from the formed steel belt 21, the peeled reconstituted tobacco undergoes thickness adjustment through the thickness adjustment roller 31, and if the thickness of the reconstituted tobacco is greater than the set thickness + -0.3 mm, the upper pressing roller 311 and the lower supporting roller 312 of the thickness adjustment roller 31 are matched with each other, and the reconstituted tobacco is rolled;
f. the reconstituted tobacco subjected to thickness adjustment is conveyed to a winding table 41, and wound on a winding shaft 42 for winding.
And after the rolling is finished, repeating the process to prepare a reconstituted tobacco sample for the next time.
Claims (5)
1. The device for preparing reconstituted tobacco by a multi-point air inlet and air outlet thick slurry method is characterized by sequentially comprising a raw material storage tank (1), a forming and drying device (2), a stripping device (3) and a winding device (4);
the forming and drying device (2) comprises a forming steel belt (21), an infrared heating plate (24), a feeding pump (22), a head box (23), a moisture discharging port (25), a temperature and humidity detector (26), drying equipment (27) and an outer cover (29) which are sequentially arranged;
the feeding pump (22) is connected with the raw material storage tank (1) and is used for conveying slurry to the forming and drying device (2);
-the headbox (23) is located above the profiled steel strip (21), the headbox (23) comprising a slurry outlet (231) and a slurry doctor (232);
the infrared heating plate (24) is positioned below the formed steel belt (21) and is used for heating the formed steel belt (21);
the forming steel belt (21) carries reconstituted tobacco to move towards the stripping device (3), one end of the forming steel belt (21) close to the feeding pump (22) is called a starting end, and the end close to the stripping device (3) is called a terminating end;
the drying equipment (27) comprises N hot air fans (271) which are sequentially arranged from one side of the temperature and humidity detector (26) to one side of the stripping device (3) i ) N is more than or equal to 2, i is the number of the hot air blower from the temperature and humidity detector (26), and i is a positive integer from 1 to N; each said hot air blower (271) i ) Connecting a vent pipe (272) extending in a direction perpendicular to the profiled strip (21) towards the profiled strip (21) i ) Each of which isSaid ventilation pipe (272) i ) Is provided with a nozzle (273) i ) The direction of the blown hot air is perpendicular to the running direction of the reconstituted tobacco;
the outer cover (29) is provided with a plurality of air outlet doors (28);
the peeling device (3) comprises a peeling scraper (32) and a thickness adjusting roller (31); the thickness adjusting roller (31) comprises an upper pressing roller (311) and a lower carrier roller (312);
the winding device (4) comprises a winding table (41) and a winding shaft (42);
as i increases, the orifice (273 i ) The distance from the forming steel strip (21) gradually decreases;
the number of the air outlet doors (28) and the hot air blower (271) i ) Is the same in number and each of the hot air blower (271) i ) One side close to the initial end of the forming steel belt (21) is provided with one air outlet door (28).
2. The device according to claim 1, characterized in that as i increases, each of the ventilation ducts (272 i ) Is provided with a nozzle (273) i ) The temperature and the air quantity of the blown hot air are gradually reduced.
3. The apparatus according to claim 1, characterized in that the air outlet door (28) is located on the front, back or top surface of the housing (29), the surface of the housing (29) parallel to the profiled steel strip (21) being the top surface of the housing (29), the surface of the housing (29) perpendicular to the profiled steel strip (21) and extending from the start end of the profiled steel strip (21) to the end of the profiled steel strip (21) being the front or back surface of the housing (29).
4. A method of operating the device of claim 1, comprising the steps of:
a. starting a feed pump (22) to convey slurry in a raw material storage tank (1) into a head box (23), and automatically adding according to a set liquid level;
b. starting the horizontal operation of the forming steel belt (21), starting an infrared heating plate (24) to heat the forming steel belt (21), setting the temperature of the forming steel belt (21) to be 30-50 ℃, controlling slurry in a slurry box (23) to flow out from a slurry outlet (231) through a slurry scraper (232) after the temperature of the forming steel belt (21) reaches the set temperature, and drying the flowing slurry through the forming steel belt (21) to form a slurry film;
c. according to the set temperature of the hot air, a hot air blower (271) is turned on i ) Each hot air fan (271) i ) A vent pipe (272) extending in a direction perpendicular to the profiled strip (21) toward the profiled strip (21) is connected i ) Each of the ventilation pipes (272 i ) Is provided with a nozzle (273) i ) The direction of the blown hot air is perpendicular to the running direction of the reconstituted tobacco, the serosa runs along with the formed steel belt (21) to the stripping device (3) and passes through the pipe opening (273) i ) Drying the blown hot air to form reconstituted tobacco;
d. the moisture discharging opening (25) is a hot air outlet, the temperature and humidity detector (26) is used for measuring the temperature and the moisture content of the surface of the serosa in real time, and each hot air fan (271) is adjusted according to the temperature and the moisture content of the surface of the serosa i ) The hot air quantity and the hot air temperature of the air conditioner and the opening degree of the moisture discharging opening (25) so that the moisture content of the reconstituted tobacco on one side of the forming steel belt (21) close to the stripping device (3) is 12-14%;
e. the peeling scraper (32) peels the reconstituted tobacco on one side of the forming steel belt (21) close to the peeling device (3) from the forming steel belt (21), the peeled reconstituted tobacco is subjected to thickness adjustment through the thickness adjustment roller (31), and when the thickness of the reconstituted tobacco is larger than the set thickness, the upper pressing roller (311) and the lower supporting roller (312) of the thickness adjustment roller (31) are matched with each other to roll the reconstituted tobacco;
f. the reconstituted tobacco with the adjusted thickness is conveyed to a winding table (41) and is wound on a winding shaft (42) for winding.
5. A method of controlling the consistency of color of reconstituted tobacco, the reconstituted tobacco being prepared using the apparatus of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911097188.5A CN110693068B (en) | 2019-11-11 | 2019-11-11 | Device and method for preparing reconstituted tobacco by multi-point air inlet and air outlet thick slurry method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911097188.5A CN110693068B (en) | 2019-11-11 | 2019-11-11 | Device and method for preparing reconstituted tobacco by multi-point air inlet and air outlet thick slurry method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110693068A CN110693068A (en) | 2020-01-17 |
| CN110693068B true CN110693068B (en) | 2023-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201911097188.5A Active CN110693068B (en) | 2019-11-11 | 2019-11-11 | Device and method for preparing reconstituted tobacco by multi-point air inlet and air outlet thick slurry method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3467109A (en) * | 1967-06-12 | 1969-09-16 | Lorillard Co Inc P | Method and apparatus for making reconstituted tobacco |
| DE102017124685A1 (en) * | 2017-10-23 | 2019-04-25 | Hauni Maschinenbau Gmbh | Method and device for producing a flat sheet of reconstituted tobacco material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6216706B1 (en) * | 1999-05-27 | 2001-04-17 | Philip Morris Incorporated | Method and apparatus for producing reconstituted tobacco sheets |
| CN103673553A (en) * | 2013-12-09 | 2014-03-26 | 武汉科技大学 | Conveyor belt type slurry drying equipment |
| CN103798948A (en) * | 2014-03-07 | 2014-05-21 | 广东省金叶科技开发有限公司 | Drying device for producing reconstituted tobacco through dry papermaking method |
| TR201814987T4 (en) * | 2014-12-16 | 2018-11-21 | Philip Morris Products Sa | Apparatus for the production of a poured layer of pulp tobacco material. |
| CN109405506B (en) * | 2018-11-19 | 2024-03-26 | 昆明烟机集团三机有限公司 | Incremental hot air countercurrent drying device and method |
| CN211323031U (en) * | 2019-11-11 | 2020-08-25 | 云南中烟工业有限责任公司 | Device for preparing reconstituted tobacco by multipoint air inlet and outlet type thick slurry method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3467109A (en) * | 1967-06-12 | 1969-09-16 | Lorillard Co Inc P | Method and apparatus for making reconstituted tobacco |
| DE102017124685A1 (en) * | 2017-10-23 | 2019-04-25 | Hauni Maschinenbau Gmbh | Method and device for producing a flat sheet of reconstituted tobacco material |
Non-Patent Citations (1)
| Title |
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| 基于TMCI再造烟叶生产线的综合技术改造;贺万华;;轻工机械(02);150-152 * |
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