WO2016027306A1 - Dispositif et procédé de fabrication de produit à base de tabac - Google Patents

Dispositif et procédé de fabrication de produit à base de tabac Download PDF

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Publication number
WO2016027306A1
WO2016027306A1 PCT/JP2014/071634 JP2014071634W WO2016027306A1 WO 2016027306 A1 WO2016027306 A1 WO 2016027306A1 JP 2014071634 W JP2014071634 W JP 2014071634W WO 2016027306 A1 WO2016027306 A1 WO 2016027306A1
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WO
WIPO (PCT)
Prior art keywords
drying
tobacco material
unit
oxygen concentration
tobacco
Prior art date
Application number
PCT/JP2014/071634
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English (en)
Japanese (ja)
Inventor
宏海 植松
毅 二村
尚 大高
敬一 塙
明弘 小出
真太郎 馬場
Original Assignee
日本たばこ産業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 日本たばこ産業株式会社 filed Critical 日本たばこ産業株式会社
Priority to PCT/JP2014/071634 priority Critical patent/WO2016027306A1/fr
Priority to PCT/JP2015/073234 priority patent/WO2016027831A1/fr
Publication of WO2016027306A1 publication Critical patent/WO2016027306A1/fr

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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
    • A24B3/04—Humidifying or drying tobacco bunches or cut tobacco
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
    • F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers

Definitions

  • the present invention relates to a tobacco material manufacturing apparatus and a manufacturing method.
  • Patent Document 1 A method of performing pressure drying to change the flavor of tobacco leaves is known (see, for example, Patent Document 1). Further, a rotor-type tobacco material dryer is known (see, for example, Patent Document 2). Further, a technique is known in which a tobacco material is impregnated with carbon dioxide to expand the tissue of the tobacco material (see, for example, Patent Document 3).
  • Patent Document 1 discloses that the moisture content of tobacco leaves during heating is maintained above 10%, and the moisture content of tobacco leaves after drying is also maintained at 10% or more, so that the filling power of tobacco leaf pieces (filling (power) is improved.
  • Patent Document 1 a tobacco leaf with a high moisture content before drying is dried.
  • Patent Document 1 also describes that in the drying process, it is important not to reduce the amount of water as much as possible.
  • drying treatment under conditions where the moisture content of tobacco leaves is very low.
  • the present invention has been made in view of the above-described problems, and an object thereof is to provide a manufacturing technique for obtaining a tobacco material having a changed flavor.
  • the present inventor has found that a tobacco material having a changed flavor can be obtained by performing a drying treatment under a condition where the moisture content of the tobacco material is very low, and has reached the present invention.
  • the present invention continuously receives the cigarette material being conveyed, dries the cigarette material received while rotating itself, and feeds it out, and the drying unit from the outside of the drying unit.
  • a cigarette material manufacturing apparatus comprising: a heating unit that heats the gas; and a drying medium supply unit that suppresses the oxygen concentration in the drying unit and supplies the drying medium in an absolutely dry state to the drying unit. It is.
  • the tobacco material is heated, and a drying medium that makes the tobacco material in an absolutely dry state (also referred to as an absolutely dry state) is supplied, so that the flavor of the tobacco material is improved.
  • the flavor of the tobacco material in the present invention is the strength of the roasted feeling. For example, the smell of tobacco material can be eliminated and a new flavor can be given.
  • the absolute dry state in the present invention means, for example, that the moisture content after the tobacco material is dried is 2.0% by weight or less. Tobacco materials are expected to deteriorate in quality due to the influence of oxygen when heated to a high temperature in an absolutely dry state.
  • the quality deterioration includes a decrease in bulkiness and crushing strength due to a change in the shape of the tobacco material, carbonization, taste deterioration, and the like.
  • the supplied drying medium can suppress the oxygen concentration in the drying section (heating section), and the quality deterioration due to the influence of oxygen in the tobacco material can be suppressed. As a result, the desired tobacco flavor can be obtained while maintaining the quality of the tobacco material.
  • Tobacco materials can be cut tobacco leaf materials and tobacco leaf materials before cutting.
  • the tobacco leaf material may be any of tobacco leaves divided into mesophyll portions and vein portions, and may include tobacco trunk portions that are not tobacco leaf portions.
  • Tobacco material is continuously received, dried, and sent out.
  • Tobacco material transported by a conveyor or the like is supplied from the inlet side of the drying section without being stopped, dried, and discharged from the outlet side. Means that. In other words, it means that the tobacco material is conveyed and dried in a series. Continuously of the present invention includes a case where the conveyance speed changes due to adjustment of the supply amount of the tobacco material, and a case where it temporarily stops.
  • the heating unit is provided to cover the drying unit, for example, and heats the drying unit from the outside. Although a heating part may cover a part of drying part, it can heat a drying part more effectively by covering the whole drying part.
  • the heating unit cooperates with the drying medium supply unit, for example, so that the moisture content after drying of the tobacco material is 2.0% by weight or less, and the product temperature of the tobacco material is 120 ° C. to 220 ° C., The drying unit is heated while the drying medium is supplied.
  • the drying medium is not particularly limited as long as it can suppress the oxygen concentration in the drying section and can dry the tobacco material, and examples thereof include superheated steam and inert gas. By using superheated steam, the drying heat treatment can be performed more efficiently.
  • the moisture content and product temperature of the tobacco material is measured, and based on the oxygen concentration, for example, the flow rate and temperature of the drying medium, the heating temperature of the heating section, the drying The exhaust amount of air in the unit may be controlled. As a result, quality deterioration due to the influence of oxygen on the tobacco material can be suppressed. Thereby, the flavor of the target tobacco can be obtained, maintaining the quality of tobacco material.
  • the tobacco material manufacturing apparatus further includes an oxygen concentration measurement unit that measures the oxygen concentration in the drying unit, and in the drying unit, based on the oxygen concentration measured by the oxygen concentration measurement unit, At least one of the flow rate of the supplied drying medium and the temperature of the drying medium may be controlled.
  • the flow rate of the drying medium can be increased when the oxygen concentration exceeds the predetermined value.
  • the tobacco material manufacturing apparatus further includes an oxygen concentration measurement unit that measures an oxygen concentration in the drying unit, and an exhaust unit that exhausts an air mixture in the drying unit, and in the drying unit,
  • the exhaust amount discharged may be controlled based on the oxygen concentration measured by the oxygen concentration measuring unit.
  • the air mixture includes steam, volatile components from raw materials, air, and the like. Thereby, quality deterioration by the influence of oxygen of a tobacco material can be suppressed.
  • Such control is performed by keeping the supply amount of the drying medium constant, so that the oxygen concentration can be changed without greatly affecting the drying efficiency.
  • the drying medium supply unit supplies a certain amount of drying medium at a certain temperature, and a certain amount of drying medium is supplied at a certain temperature in the drying unit, and the oxygen measured by the oxygen concentration measurement unit.
  • the exhaust amount to be discharged may be controlled so that the oxygen concentration becomes a predetermined value or less.
  • the exhaust amount can be reduced.
  • the exhaust amount can be increased or maintained if the supply amount of the drying medium is constant and the oxygen concentration is not more than a predetermined value.
  • the drying section needs to be able to rotate itself and is difficult to seal due to its structure. Therefore, for example, a gap is formed on the inlet side or the outlet side of the drying unit, and the amount of outside air flowing into the drying unit through the gap changes according to the increase or decrease of the exhaust amount. For example, when the displacement is reduced, more drying medium is present in the drying section, and the inflow of outside air is suppressed. As a result, the effect of suppressing the oxygen concentration in the drying section is enhanced, and quality deterioration due to the influence of oxygen in the tobacco material can be suppressed. For example, when the exhaust amount increases, the supplied drying medium is discharged into the drying unit, and the inflow of outside air increases accordingly. As a result, the oxygen concentration in the drying part can be maintained in an appropriate state.
  • the exhaust unit may be provided on the inlet side of the drying unit, and the drying medium supply unit may be provided on the outlet side of the drying unit.
  • the supply direction of the drying medium is opposed to the direction in which the tobacco material flows, and the drying efficiency and heating efficiency of the tobacco material can be further improved.
  • the oxygen concentration in the drying part is 15% or less, preferably 10% or less, more preferably 5% or less, and the moisture content after drying of the tobacco material is 2.0% by weight or less.
  • the product temperature of the material can be 120 ° C. or higher and 220 ° C. or lower. More preferably, the temperature of the tobacco material can be 160 ° C. or higher and 210 ° C. or lower. More preferably, the article temperature of the tobacco material can be 180 ° C. or higher and 200 ° C. or lower. According to the said conditions, the quality deterioration by the influence of the oxygen of tobacco material can be suppressed, and the flavor of the target tobacco can be obtained, maintaining the quality of tobacco material.
  • the tobacco material manufacturing apparatus may further include a moisture amount adjustment unit that is provided on the outlet side of the drying unit and adjusts the moisture content of the tobacco material that is sent out from the drying unit.
  • the moisture amount adjusting unit sprays water or saturated steam onto the tobacco material sent out from the drying unit.
  • the tobacco material can be given flexibility, and the tobacco material can be prevented from being crushed during conveyance or winding.
  • the tobacco material immediately after being sent out from the drying section is in a high temperature and absolutely dry state, and is liable to cause quality deterioration due to the influence of oxygen.
  • the moisture amount adjusting unit By spraying the saturated steam by the moisture amount adjusting unit, the oxygen concentration in the atmosphere around the tobacco material immediately after being sent out from the drying unit can be reduced.
  • the tobacco material manufacturing apparatus includes a dry state measuring unit that measures a dry state of the tobacco material sent from the drying unit, and a temperature in a flow path through which the tobacco material sent from the drying unit passes. Further comprising at least one of a channel temperature measuring unit that measures the concentration of oxygen in the channel that measures the oxygen concentration in the channel through which the tobacco material sent from the drying unit passes, The moisture content adjusting unit may adjust the moisture content of the tobacco material sent out from the drying unit based on the measurement result.
  • the water content adjustment unit can adjust the spray amount of water or saturated steam according to the dry state of the tobacco material sent out from the drying unit.
  • the moisture content for example, about 12% to 15%
  • the moisture amount adjusting unit reduces or maintains the spray amount, and the temperature in the flow path through which the tobacco material passes exceeds a predetermined value. In this case, the amount of saturated vapor sprayed can be increased.
  • the water content adjustment unit reduces or maintains the spray amount of saturated steam, and the oxygen concentration in the flow path through which the tobacco material passes. If the value exceeds the predetermined value, the amount of saturated steam sprayed can be increased.
  • the present invention can be specified as a tobacco material manufacturing method corresponding to the above-described tobacco material manufacturing apparatus.
  • the present invention continuously accepts the tobacco material to be conveyed in a cylindrical drying unit, dries the tobacco material received while the drying unit itself rotates, and sends it out, and in the drying step, In the heating step of heating the drying unit from the outside of the drying unit, and in the drying step, a drying medium that suppresses the oxygen concentration in the drying unit and makes the tobacco material in an absolutely dry state is fed into the drying unit. And a drying medium supply step.
  • the tobacco material is heated, and the drying medium that makes the tobacco material in an absolutely dry state is supplied, thereby reducing the oxygen concentration, and the influence of oxygen in the tobacco material. It is possible to obtain the desired tobacco flavor while maintaining the quality of the tobacco material while suppressing the deterioration of quality due to.
  • the method for producing a tobacco material according to the present invention further includes an oxygen concentration measuring step for measuring an oxygen concentration in the drying unit, and an exhausting step for exhausting the air mixture in the drying unit, wherein the drying medium supplying step Then, a constant amount of drying medium is supplied at a constant temperature, and in the exhaust process, the exhaust amount discharged is set so that the oxygen concentration becomes a predetermined value or less based on the oxygen concentration measured by the oxygen concentration measurement unit. You may make it control. By supplying the drying medium in a constant amount at a constant temperature, the oxygen concentration can be changed without greatly affecting the drying efficiency.
  • FIG. 1 shows an overall configuration of a tobacco material manufacturing apparatus according to an embodiment.
  • FIG. 2 is a cross-sectional view taken along the line AA in FIG.
  • FIG. 3 shows a processing flow in the tobacco material manufacturing apparatus according to the embodiment.
  • FIG. 4 shows an example of a table used for exhaust processing.
  • the tobacco material manufactured by the tobacco material manufacturing apparatus 1 includes various tobacco products such as cigarettes (with a filter and without a filter), smokeless tobacco (for example, snus and gum), hand-rolled tobacco, and water tobacco. Can be applied to, cigars, skinny.
  • FIG. 1 shows an overall configuration of a tobacco material manufacturing apparatus 1 (hereinafter also simply referred to as a manufacturing apparatus) according to an embodiment.
  • the manufacturing apparatus 1 includes a supply conveyor 21, a rotor dryer 3, a heater 4, a superheated steam supply unit 5, an inlet side hood 61, an outlet side hood 62, an exhaust processing unit 7, a spray pipe 81, a spray nozzle 82, and a transport conveyor 22.
  • Various measuring instruments oxygen concentration meters ⁇ 1, ⁇ 2, thermometers T1, T2, T3, moisture meters M1, M2, camera X
  • a control device 9 are provided.
  • the supply conveyor 21 supplies tobacco material to the rotor dryer 3.
  • the supply conveyor 21 can be configured by an existing belt conveyor.
  • the supply conveyor 21 is not particularly limited as long as it can transport the tobacco material.
  • a tobacco leaf material that has been cut and a tobacco leaf material that has not been cut can be used.
  • the tobacco leaf material may be any of tobacco leaves divided into mesophyll portions and vein portions, and may include tobacco trunk portions that are not tobacco leaf portions. Examples of tobacco leaf materials include those cut to a step width of 0.1 to 2.0 mm. The step size can be appropriately determined according to the use of the tobacco material, for example, the type of cigarette or smokeless tobacco.
  • the step width is a value set when cutting the raw leaf tobacco with a tobacco cutter (not shown).
  • Tobacco leaf cutting is an operation that cuts raw leaf tobacco into long and narrow fibers with a certain width.
  • a machine that performs cutting is called a cutting machine, and a rotary type cutting machine or a cut-off type cutting machine is a common device.
  • the width for engraving raw leaf tobacco The value to be set is called step size.
  • the rotor-type dryer 3 corresponds to a drying unit of the present invention, continuously receives the tobacco material supplied by the supply conveyor 21, and dries and sends out the received tobacco material while rotating itself.
  • the rotor dryer 3 is cylindrical and has an inlet 31 and an outlet 32.
  • the entrance 31 is provided with a tobacco material receiver 23 having a slope.
  • the tobacco material conveyed by the supply conveyor 21 falls, slides on the slope of the tobacco material receiver 23, and is successively fed into the rotor dryer 3.
  • the rotor dryer 3 rotates around the central axis of the cylinder, for example, at a speed of 2 to 10 rpm.
  • the central axis is slightly inclined so that the inlet 31 is slightly higher than the outlet 32.
  • the inclination can be changed freely.
  • the rotor dryer 3 is provided with a driving device 33 at the lower part of the outer peripheral surface near the inlet 31 and the outlet 32.
  • the drive device 33 is configured to include, for example, a motor, a pulley, and a belt.
  • the motor is driven, the driving force is transmitted to the rotor dryer 3, and the rotor dryer 3 rotates. Since the rotation shaft is slightly inclined, the tobacco material in the rotor-type dryer 3 is conveyed while the moisture is gradually removed from the inlet 31 toward the outlet 32 as the rotor-type dryer 3 rotates. .
  • the rotor dryer 3 is provided with an oxygen concentration meter ⁇ 1 that measures the oxygen concentration in the rotor dryer 3.
  • the value of the oxygen concentration measured by the oxygen concentration meter ⁇ ⁇ b> 1 is input to the control device 9.
  • the rotor dryer 3 is the drying temperature fed by the temperature in the rotor dryer 3 measured by the thermometer T1 of the dryer that measures the temperature in the rotor dryer 3 or the rotor dryer 3.
  • the rotational speed can be adjusted based on the moisture content of the tobacco material measured by the moisture meter M1 of the outlet hood that measures the moisture content of the subsequent tobacco material.
  • the moisture meter M1 of the outlet side hood measures the moisture content of the tobacco material after drying. Thereby, the tobacco material is confirmed to be in an absolutely dry state.
  • the heater 4 corresponds to the heating unit of the present invention, and heats the rotor dryer 3 from the outside of the rotor dryer 3.
  • the heater 4 has a cylindrical shape whose inner diameter is slightly larger than the outer diameter of the rotor dryer 3, covers the outer peripheral wall surface of the rotor dryer 3, and heats the rotor dryer 3.
  • a slight gap is formed between the inner peripheral wall surface of the heater 4 and the outer peripheral wall surface of the rotor dryer 3, and the heater 4 is separated from the rotor dryer 3. Therefore, when the rotor dryer 3 rotates, the heater 4 is fixed to a support portion (not shown) without rotating.
  • the heater 4 includes a temperature in the rotor dryer 3 measured by a thermometer T1 of the dryer, a moisture content of the tobacco material after drying measured by a moisture meter M1 of the outlet hood, and an oxygen concentration meter ⁇ 1.
  • the temperature can be adjusted based on the oxygen concentration in the rotor dryer 3 measured in step (1).
  • the superheated steam supply unit 5 corresponds to the drying medium supply unit of the present invention.
  • the superheated steam supply unit 5 suppresses the oxygen concentration in the rotor dryer 3 and supplies superheated steam as a drying medium in which the tobacco material is in an absolutely dry state into the rotor dryer 3.
  • an inert gas such as nitrogen may be used.
  • the superheated steam supply unit 5 includes a superheated steam generator 51 and a superheated steam supply pipe 52 through which the superheated steam flows.
  • the superheated steam generator 51 generates saturated steam, further heats the generated saturated steam (for example, 100 ° C.), and generates superheated steam (for example, 160 ° C.
  • the superheated steam supply unit 5 is provided on the outlet side of the rotor-type dryer 3, in other words, provided so that the supply direction of the superheated steam faces the direction in which the tobacco material flows. Thereby, the drying efficiency and heating efficiency of tobacco material can be improved more.
  • the superheated steam generator 51 includes a temperature in the rotor dryer 3 measured by the thermometer T1 of the dryer, a moisture content of the tobacco material after drying measured by the moisture meter M1 of the outlet hood, and an oxygen concentration meter. The temperature and flow rate of the superheated steam to be generated may be adjusted based on the oxygen concentration in the rotor dryer 3 measured at ⁇ 1. In addition, for example, the superheated steam may be generated by using the steam in the steam piping of the factory equipment and heating it.
  • the inlet hood 61 covers the inlet 31 of the rotor dryer 3 and suppresses the air in the rotor dryer 3 from leaking to the outside.
  • the inlet-side hood 61 is a hexahedron, an opening for receiving the inlet 31 of the rotor-type dryer 3 is formed on the surface on the rotor-type dryer 3 side, and the surface facing the surface on the rotor-type dryer 3 side (supply conveyor 21) An opening for receiving the tobacco material receiver 23 is formed on the side surface.
  • an exhaust pipe 71 constituting the exhaust processing unit 7 is connected to the upper surface (top surface).
  • the inlet side hood 61 should just be able to suppress that the air in the rotor type dryer 3 leaks outside, for example, may be a cylindrical shape which has an upper surface and a lower surface.
  • the outlet side hood 62 covers the outlet 32 of the rotor dryer 3 and suppresses the air in the rotor dryer 3 from leaking to the outside.
  • the outlet side hood 62 is a hexahedron, and an opening for receiving the outlet 32 of the rotor dryer 3 is formed on the surface of the rotor dryer 3 side. Further, an opening for receiving the superheated steam supply pipe 52 is formed on a surface facing the opening for receiving the outlet 32. In addition, the lower surface is formed with an opening through which the tobacco material after drying sent out from the rotor dryer 3 is passed.
  • An exhaust pipe 71 constituting the exhaust processing unit 7 may be connected to the upper surface (top surface).
  • the outlet side hood 62 only needs to be able to prevent the air in the rotor dryer 3 from leaking to the outside, and may be, for example, a cylindrical shape having an upper surface.
  • the outlet hood 62 is provided with a moisture meter M1 for the outlet hood that measures the moisture content of the tobacco material delivered from the rotor dryer 3.
  • the inlet-side hood 61 and the outlet-side hood 62 have a function of suppressing the air in the rotor dryer 3 from leaking to the outside.
  • the rotor dryer 3 needs to be able to rotate itself and is difficult to seal because of its structure. Therefore, gaps are formed between the inlet 31 of the rotor-type dryer 3 and the inlet-side hood 61 and between the outlet 62 and the outlet-side hood 62 of the rotor-type dryer 3, and the outside air is passed through this gap. Can flow into the rotor dryer 3. And according to the increase / decrease in the exhaust amount of the air discharged
  • the exhaust treatment unit 7 corresponds to the exhaust unit of the present invention, and exhausts the air mixture in the rotor dryer 3.
  • the air mixture includes steam, volatile components from raw materials, air, and the like.
  • the exhaust processing unit 7 includes an exhaust pipe 71 and a fan 72. One end of the exhaust pipe 71 is connected to the upper surface of the inlet side hood 61, and the other end is connected to the fan 72. When the fan 72 is driven, the air in the rotor dryer 3 is exhausted through the exhaust pipe 71 by the suction action of the fan 72.
  • the fan 72 can adjust the amount of air discharged from the rotor dryer 3 based on the oxygen concentration measured by the oxygen concentration meter ⁇ 1.
  • the spray tube 81 constitutes a part of the moisture amount adjusting unit of the present invention, and the tobacco material fed from the rotor dryer 3 passes through.
  • the spray tube 81 is rectangular in cross section, but may be cylindrical.
  • a plurality of (for example, multistage) spray nozzles 82 (which constitute a part of the water content adjusting unit of the present invention) are provided on the wall of the spray pipe 81 to spray water or saturated steam.
  • a camera X is provided for detecting whether the quality of the cigarette material after drying sent from the rotor dryer 3 has deteriorated due to the influence of oxygen.
  • the quality deterioration includes a decrease in bulkiness and crushing strength due to a change in the shape of the tobacco material, carbonization, taste deterioration, and the like.
  • a taste change can also be detected by a color change or the like.
  • the camera X is connected to an alarm device (not shown), and when the quality deterioration due to the influence of oxygen in the tobacco material is detected, the alarm device notifies that effect.
  • detection information is input into the control apparatus 9, and the rotor dryer 3, the heater 4, the superheated steam generator 51, the fan 72, the supply conveyor 21, etc. Each device may be stopped.
  • an oxygen concentration meter ⁇ 2 for the spray tube for measuring the oxygen concentration near the outlet in the spray tube 81 is provided near the outlet of the spray tube 81.
  • a spray tube thermometer T2 for measuring the temperature near the outlet in the spray tube 81 is provided.
  • the spray nozzle 82 is a moisture content value of the tobacco material after drying measured by the moisture meter M1 of the outlet side hood, an oxygen concentration value of the spray tube 81 measured by the oxygen concentration meter ⁇ 2 of the spray tube, and a spray. Based on the temperature value in the spray pipe 81 measured by the pipe thermometer T2, the temperature and the spray amount of the saturated steam to be sprayed can be adjusted.
  • the transport conveyor 22 transports the dried tobacco material to a buffer silo (not shown). Although not shown in the figure, the conveyor 22 can have a multi-stage configuration. Similarly to the supply conveyor 21, the transport conveyor 22 can also be configured by an existing belt conveyor.
  • the transport conveyor 22 is provided with a transport conveyor thermometer T3 for measuring the temperature of the dried tobacco material being transported, and a transport conveyor moisture meter M2 for measuring the moisture content of the transported dried tobacco material. ing.
  • the spray nozzle 82 further takes into consideration the value of the temperature of the tobacco material after drying measured by the thermometer T3 of the conveyor and the value of the moisture content of the tobacco material after drying measured by the moisture meter M2 of the conveyor. The temperature of water to be sprayed and the amount of spray can be adjusted.
  • the control device 9 includes an information processing device having a CPU (Central Processing Unit) and a memory, an input device such as a keyboard, and a display device including a display.
  • the input device is, for example, setting a predetermined oxygen concentration in the rotor dryer 3, setting a predetermined moisture content of the tobacco material when the tobacco material is in an absolutely dry state, and setting a predetermined product temperature of the tobacco material. Etc. are accepted.
  • the CPU executes a control program for each device stored in the memory, and based on the information detected by each measuring instrument, controls the rotational speed of the rotor dryer 3 and controls the temperature of the heater 4 (heating process).
  • Control of the temperature and flow rate of superheated steam generated by the superheated steam generator 51 (superheated steam supply process), exhaust amount control of the fan 72 (exhaust process), transport speed control of the supply conveyor 21, and water sprayed by the spray nozzle 82
  • the temperature of the saturated steam, the spray amount control (moisture adjustment process), the control of the transport speed of the transport conveyor 22, and the like are performed.
  • FIG. 3 shows a processing flow in the tobacco material manufacturing apparatus according to the embodiment.
  • the control of each device described above may be executed by an individual program that realizes control of each device, or all devices may be executed by one control program.
  • it demonstrates along conveyance of a tobacco material.
  • the tobacco material is transported by the supply conveyor 21, and the tobacco material is supplied to the rotor dryer 3.
  • the tobacco material conveyed by the supply conveyor 21 falls when it is conveyed to the end on the rotor dryer 3 side, and is successively fed into the rotor dryer 3 via the tobacco material receiver 23.
  • the supplied tobacco material is transported while gradually removing moisture from the inlet 31 toward the outlet 32 in the rotor dryer 3 rotating at, for example, 4 rpm. .
  • the moisture content of the tobacco material after drying is 2% or less (absolutely dried)
  • the temperature of the tobacco material after drying is 180 ° C. to 200 ° C.
  • the oxygen concentration in the rotor dryer 3 is 15%.
  • Heat processing, superheated steam supply processing, and exhaust processing are performed as follows.
  • the control device 9 controls the heater 4 so that the heating temperature becomes a constant temperature (for example, 300 ° C.).
  • control device 9 controls the superheated steam generator 51 so that the temperature (for example, 300 ° C.) and the flow rate of the superheated steam are constant.
  • the control device 9 determines the amount of air exhausted from the rotor dryer 3 by the suction action of the fan 72 based on the oxygen concentration of the rotor dryer 3 measured by the oxygen concentration meter ⁇ 1.
  • FIG. 4 shows an example of a table used for exhaust processing.
  • the control device 9 accesses a table stored in the memory and performs exhaust processing. For example, when the oxygen concentration is equal to or lower than a predetermined oxygen concentration (for example, 15%), the control device 9 maintains the displacement or increases the displacement. Further, the control device 9 reduces the displacement when the oxygen concentration exceeds a predetermined oxygen concentration (for example, 15%).
  • gaps are formed between the inlet 31 of the rotor dryer 3 and the inlet hood 61 and between the outlet 62 and the outlet hood 62 of the rotor dryer 3.
  • outside air can flow into the rotor dryer 3.
  • the displacement is reduced, there is more drying medium in the rotor dryer 3, and the inflow of outside air is suppressed.
  • the effect of suppressing the oxygen concentration in the rotor dryer 3 is enhanced, and excessive oxidation of the tobacco material can be suppressed.
  • the exhaust amount increases, the supplied drying medium is discharged into the rotor-type dryer 3, and the inflow of outside air increases accordingly.
  • the oxygen concentration in the rotor dryer 3 can be maintained in an appropriate state. Thereby, quality deterioration by the influence of oxygen of a tobacco material can be suppressed.
  • the oxygen concentration In order to maintain the oxygen concentration in an appropriate state, it can be adjusted by changing the supply amount of superheated steam in the superheated steam supply process. In addition, by adjusting the temperature and supply amount of superheated steam and adjusting the exhaust amount by exhaust processing as described above, the oxygen concentration is adjusted without greatly affecting the preset heating / drying capacity of the apparatus. I can do this.
  • the moisture content of the tobacco material after drying is adjusted. Specifically, water is sprayed on the tobacco material.
  • the moisture content adjustment step saturated steam is sprayed in addition to water to reduce the oxygen concentration in the spray tube 81, and to suppress quality deterioration due to the influence of oxygen in the tobacco material after drying.
  • step S04 the tobacco material after drying is transported to a buffer silo (not shown).
  • a buffer silo not shown
  • the moisture content of the tobacco material after drying is 2% or less (absolutely dried), the product temperature of the tobacco material after drying is 180 ° C. to 200 ° C., the rotor type Heat treatment by the heater 4, supply processing of superheated steam generated by the superheated steam generator 51, and exhaust processing by the fan 72 are performed so that the oxygen concentration in the dryer 3 is 15% or less.
  • the oxygen concentration in the rotor dryer 3 is 15% or less, quality deterioration due to the influence of oxygen in the tobacco material can be suppressed.
  • the bulkiness of the tobacco material after drying is increased by supplying the tobacco material with heating or superheated steam under a condition where the product temperature is 180 ° C. to 200 ° C.
  • the quality deterioration due to the influence of oxygen can be suppressed when the tobacco material is transported in the spray pipe 81 or the transport conveyor 22.
  • the moisture content of the tobacco material after drying is 2% or less (absolutely dried), but by spraying water to a moisture content of, for example, about 12 to 15%, the tobacco material is flexible. Can be granted. As a result, it is possible to suppress crushing during transport and winding of the tobacco material.
  • the control device 9 can control the motor that drives the supply conveyor 21 based on the moisture content of the tobacco material measured by the moisture meter M1 of the outlet hood of the rotor dryer 3. For example, the control device 9 can maintain the rotation speed of the motor when the moisture content of the tobacco material measured by the moisture meter M1 of the outlet hood is a specified value. On the other hand, the control device 9 can reduce the rotation speed of the motor when the moisture content of the tobacco material measured by the moisture meter M1 of the outlet hood exceeds a specified value. Thus, the moisture content of the tobacco material in the vicinity of the outlet of the rotor dryer 3 may be adjusted by adjusting the supply amount of the tobacco material put into the rotor dryer 3.
  • the control device 9 acquires information on the storage amount of tobacco material stored in a buffer silo (not shown), and reduces the rotation speed of the motor of the supply conveyor 21 only when there is a storage amount that does not reduce the production. You may do it.
  • control device 9 controls each device, but the function of the control device 9 may be assigned to each device so that each device controls itself.
  • control device 9 can control the superheated steam generator 51 based on the oxygen concentration of the rotor dryer 3 measured by the oxygen concentration meter ⁇ 1.
  • the control device 9 can increase the flow rate of the drying medium when the oxygen concentration of the rotor dryer 3 measured by the oxygen concentration meter ⁇ 1 exceeds a predetermined oxygen concentration (for example, 15%). Thereby, the oxygen concentration is reduced, the quality deterioration due to the influence of oxygen of the tobacco material is suppressed, and the desired tobacco flavor can be obtained while maintaining the quality of the tobacco material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

L'invention concerne un procédé de fabrication de produit à base de tabac présentant un arôme modifié. L'invention concerne également un dispositif de fabrication de produit à base de tabac, pourvu : d'une unité de séchage cylindrique (3) recevant le produit à base de tabac transporté en continu, le produit à base de tabac est séché pendant que l'unité tourne et le produit est déchargé; une unité de chauffage (4) qui chauffe l'unité de séchage à partir de l'extérieur de l'unité de séchage; et une unité d'alimentation en milieu de séchage (5) qui transporte, vers l'unité de séchage, un milieu de séchage commandant la concentration en oxygène dans l'unité de séchage et amenant le produit à base de tabac dans un état de séchage absolu.
PCT/JP2014/071634 2014-08-19 2014-08-19 Dispositif et procédé de fabrication de produit à base de tabac WO2016027306A1 (fr)

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PCT/JP2014/071634 WO2016027306A1 (fr) 2014-08-19 2014-08-19 Dispositif et procédé de fabrication de produit à base de tabac
PCT/JP2015/073234 WO2016027831A1 (fr) 2014-08-19 2015-08-19 Dispositif et procédé de fabrication de tabac

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020245368A1 (fr) * 2019-06-05 2020-12-10 Philip Morris Products S.A. Séchoir pour matériau herbacé avec chauffage d'accès

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6054028B2 (ja) * 1983-12-23 1985-11-28 日本たばこ産業株式会社 たばこ用乾燥調和装置
JPH02504469A (ja) * 1988-03-19 1990-12-20 ジービーイー・インターナショナル・ピーエルシー ロータリシリンダ式ドライヤ
JP3140039B2 (ja) * 1990-11-07 2001-03-05 日本たばこ産業株式会社 たばこ原料の気流乾燥方法およびその装置
JP2010216748A (ja) * 2009-03-18 2010-09-30 Taiheiyo Cement Corp 含水廃棄物の乾燥システム及び乾燥方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009028913A1 (de) * 2009-08-26 2011-03-31 Jt International S.A. Vorrichtung und Verfahren zum Behandeln von Tabak

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6054028B2 (ja) * 1983-12-23 1985-11-28 日本たばこ産業株式会社 たばこ用乾燥調和装置
JPH02504469A (ja) * 1988-03-19 1990-12-20 ジービーイー・インターナショナル・ピーエルシー ロータリシリンダ式ドライヤ
JP3140039B2 (ja) * 1990-11-07 2001-03-05 日本たばこ産業株式会社 たばこ原料の気流乾燥方法およびその装置
JP2010216748A (ja) * 2009-03-18 2010-09-30 Taiheiyo Cement Corp 含水廃棄物の乾燥システム及び乾燥方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020245368A1 (fr) * 2019-06-05 2020-12-10 Philip Morris Products S.A. Séchoir pour matériau herbacé avec chauffage d'accès
CN113939200A (zh) * 2019-06-05 2022-01-14 菲利普莫里斯生产公司 具有通路加热的用于草本材料的干燥器

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