WO2005000043A1 - Procede et equipement pour la dilatation du tabac hache - Google Patents

Procede et equipement pour la dilatation du tabac hache Download PDF

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Publication number
WO2005000043A1
WO2005000043A1 PCT/CN2003/000512 CN0300512W WO2005000043A1 WO 2005000043 A1 WO2005000043 A1 WO 2005000043A1 CN 0300512 W CN0300512 W CN 0300512W WO 2005000043 A1 WO2005000043 A1 WO 2005000043A1
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expansion
tobacco
temperature
conveying
airflow
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French (fr)
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Jiareng Huang
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Priority to PCT/CN2003/000512 priority Critical patent/WO2005000043A1/zh
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    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00Preparing tobacco in the factory
    • A24B3/18Other treatment of leaves, e.g. puffing, crimpling, cleaning
    • A24B3/182Puffing

Definitions

  • the invention relates to a method for expanding shredded tobacco and equipment using the method. Background technique
  • the shredded tobacco After being impregnated with an expansion medium (such as carbon dioxide), the shredded tobacco is sent to a high-temperature (320 ° C ⁇ 380 ° C) airflow conveyance pipeline system with superheated steam as the main gas phase for expansion treatment.
  • an expansion medium such as carbon dioxide
  • the shredded tobacco After expanding the shredded tobacco, its expansion rate can reach 100%, which can greatly reduce the consumption of tobacco in a single box of tobacco; the improved burning performance of the shredded tobacco reduces the tar content in the smoke and reduces harmful substances. Therefore, the process and equipment of expanded tobacco shreds have been widely used in various countries around the world.
  • the typical DIET (dry ice expanded shredded tobacco) process and equipment is that after the tobacco is impregnated with carbon dioxide, it is sent to a high-temperature airflow conveying expansion system for processing through a loosen, vibrating silo, and quantitative feeding.
  • the carbon dioxide and moisture in the tobacco are quickly gasified. And get swell.
  • the moisture content of cut tobacco is 2% ⁇ 3%.
  • the patent of the United States Reynolds Tobacco Company proposes to use a circular arc (C-shaped) pipe with a large curvature radius as the transport expansion pipe, and the rectangular cross-section width to thickness ratio (W / D) of the rectangle is 5 ⁇ 2, And the pipeline has a gradual The thickness is gradually reduced after being enlarged to reduce the fragmentation during the expansion process of the shredded tobacco.
  • this equipment will also reduce the dry basis moisture content of the shredded tobacco to less than 3%, which will cause more volatile substances in the shredded tobacco to affect the quality of the shredded tobacco.
  • CN1061328A is to set a number of nozzles at specific positions on the tobacco conveying expansion pipe, and inject steam or water mist into the high-temperature airflow through the nozzle to control the temperature of the airflow in the conveying expansion pipe (from the initial temperature 320 ° C gradually decreases to 155 ° C along the pipeline), so that the heat received by the tobacco in the expansion pipeline is reduced.
  • This method can reduce the loss of flavor substances in the shredded tobacco, and it will not cause a scorched smell in the smoke.
  • the amount of steam or water mist injected into each nozzle is not easy to control. If the water atomization is not good, the expansion effect will be affected.
  • the cut tobacco temperature is the boiling temperature of water (100 ° C) under the operating pressure, which will not cause a large amount of loss of flavor substances in the cut tobacco.
  • the moisture content of the dried tobacco was reduced to 2% ⁇ 3%, the temperature of the tobacco was close to the temperature of the dry air stream.
  • the higher the temperature of the dry air stream the more aroma substances are lost in the shredded tobacco, and it is inevitable that the burnt smell in the smoke, and the shredded tobacco is also easily broken. Therefore, in order to prevent the excessively high temperature of the shredded tobacco during the expansion process, it is necessary to control the temperature of the dry air stream when the moisture content of the shredded tobacco dry basis falls below 8% to 9%.
  • the purpose of the present invention is to provide a method and a device for expanding tobacco shreds, which have a high expansion rate of tobacco shreds, but have a low crushing rate, will not greatly reduce the amount of scent substances in the tobacco shreds, and will not have a scorched smell in the smoke.
  • the purpose of the present invention is achieved by the following technical scheme:
  • the expanded tobacco shred method provided by the present invention is that after the tobacco is impregnated with an expansion medium (such as carbon dioxide), the flow is uniformly fed into a dry medium with superheated steam as an initial temperature of 320 ° ( : ⁇ 380 ° C is used to expand and dry in the expansion pipeline system of air flow conveying.
  • the ratio of the volume of superheated steam to the volume of dry air in the drying medium is generally set to 8: 2 ⁇ 9: 1.
  • Increase the material-gas ratio of the expansion pipeline system. The ratio of the quality of the shredded tobacco to the mass of the conveying expansion air stream), so that the material-gas ratio is increased from less than 0.17 to 0.2 to 0.35.
  • the moisture content of the dry basis of the tobacco in the conveying expansion pipe has been reduced to a specific position of 15% to 16.5% ,
  • the circulating airflow with a lower moisture content to a fixed temperature is fed into the conveying expansive airflow, so that the temperature of the conveying expansive airflow is reduced to 160 ° C at the discharge point, and the lowest is 140 ° C.
  • the temperature of the shredded tobacco is excessively increased, and the moisture content of the shredded tobacco is prevented from being excessively reduced to 2% to 3%.
  • the material-to-gas ratio of the conveying expansion pipeline is increased, and the airflow conveying speed is unchanged, and the initial temperature of the airflow is constant. Under the same conditions, the temperature of the conveying expansion airflow can be reduced relatively quickly along the pipeline.
  • the optimal material-gas ratio is 0.25 ⁇ 0.3.
  • the conveyed expansion air is circulated in the pipeline system. Due to air leakage and carbon dioxide gasification in the system, the ratio of the volume of superheated steam to the volume of dry air in the circulating gas is less than the set value.
  • the steam with a temperature of 105 ° C ⁇ 130 ° C is sent to the circulating air stream and the flow rate is controlled, which can make the moisture content of the circulating air stream reach a fixed value and reduce Its temperature.
  • the dry basis moisture content of the shredded tobacco expanded by the air-flow conveying expansion pipeline system is controlled within the range of 6% to 9%.
  • the expanded shredded tobacco equipment provided by the present invention includes a quantitative feeding device, a feed air lock (6), a transport expansion pipe (5), a blanker (3), and a discharge air lock (1) , Fan (2), dust collector (19), exhaust fan (20), steam supply pipe (17), combustion furnace (14) and its connecting pipes and regulating valves.
  • a bypass pipe (10) and a regulating valve (11) are provided to send the circulating airflow with a low moisture content to a fixed temperature B—B cross section, mixed with conveying expansive airflow.
  • FIG. 1 is a schematic diagram of an expanded tobacco shredder device according to an embodiment
  • Figure 2 shows the curve of the temperature of the expansion gas flow along the pipeline under different material-gas ratio conditions
  • Figure 3 shows the relationship between the air temperature and the gas-to-gas ratio when the moisture content of the dry base in the expansion pipeline is reduced to 15% ⁇ 16.5%.
  • the airflow expansion pipe system is a closed cycle system, which is mainly composed of quantitative feeding equipment, feed air lock 6, transport expansion pipe 5, blanker 3, discharge air lock 1, fan 2, dust collector 19. Exhaust fan 20, steam supply pipe 17, combustion furnace 14 and its connecting pipes and regulating valve. Set the material-air ratio to 0.28.
  • the cut tobacco impregnated with carbon dioxide enters the metering tube 9 from the bin 8 and passes through the electronic belt scale 7 and the feed air lock 6 to be sent into an air flow conveying expansion pipe 5 at 330 ° C for expansion and drying.
  • the total length of pipe 5 (18.0m from the A_A section to the inlet of blanker 3, superheated steam in the air stream
  • the ratio of the volume to the volume of dry air is 9: 1
  • the air velocity of the A-A section is 48.0 m / so.
  • the expanded and dried tobacco is separated from the air stream in the feeder 3 and discharged by the discharge air lock 1.
  • the conveying expanded air is discharged from the fan 2 through the pipe 4.
  • a small part of the discharged airflow is purified by the regulating valve 21 and enters the dust collector 19, is discharged into the atmosphere by the fan 20, or is sent to the combustion furnace 14 for incineration; most of the airflow is recycled.
  • the steam supply pipe 16 is fed into the recycled air flow.
  • the steam at a temperature of 108 ° C is controlled by a regulating valve 17.
  • 60% enters the combustion furnace 14 through the regulating valve 15 and is heated to 330 ° C, and then sent to the conveying expansion pipe 5.
  • the system is also provided with a regulating valve 12 and a bypass pipe 13 for controlling the temperature of the air flow entering the AA cross section to be stable.
  • the adjustment valves 12 and 15 can be adjusted to appropriately reduce the heating gas flow rate, and an appropriate amount of low-temperature circulating air stream and the heating air stream are mixed through the pipe 13 so that the temperature of the conveying expansion air stream reaches a set value .
  • the temperature of the air flow in the expansion pipe 5 near the B-B section is reduced to 183 ° C, and the temperature of the airflow at the inlet of the blanker 3 dropped to 148 ° C.
  • the ratio of medium superheated steam volume to dry air volume is 9: 1.
  • the temperature of the air flow in the conveying expansion pipe 5 before approaching the B_B section is 198 ° C, and the temperature of the air flow at the inlet of the blanker 3 is 163 ° C.
  • the temperature of the air flow in the expansion pipeline 5 before approaching the B-B section is 233 ° C, and the air temperature at the inlet of the blanker 3 is 218 ° C.
  • Table 1 and Figure 2 show the changes in the temperature of the conveying expansion gas stream along the pipeline under different material-gas ratio conditions. It can be seen from Fig. 2 that different materials-gas ratios have different slopes for lowering the temperature of the conveying expansion gas stream. When the moisture content of shredded tobacco falls to a certain range, the temperature of the airflow decreases slowly. However, after mixing the unheated circulating low-temperature airflow with a fixed moisture content and the conveying expansion airflow, the slope of the airflow temperature's decrease has increased.
  • Figure 3 shows the relationship between the air temperature and the gas-to-gas ratio on the conveying expansion pipe 5 before approaching the B-B section. That is, the temperature of the airflow is inversely proportional to the material-gas ratio. With the increase of the material-to-gas ratio, the temperature of the air flow in the conveying expansion pipe decreases significantly.
  • the initial air temperature is high, which is a necessary condition for the expansion of tobacco shreds.
  • the temperature of the expanded air stream is reduced to 160 V, or even 140 ° C, which provides protection for the large amount of expanded shredded tobacco, the loss of scent substances, and the scorch smell in the smoke. Is an important way to improve the quality of expanded cut tobacco Table 1 The effect of different material-gas ratios on the temperature of the conveying expansion gas stream
  • Serial number A A blanking device Remarks The base of section B contains water

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  • Manufacture Of Tobacco Products (AREA)

Description

烟丝膨胀方法及设备 技术领域
本发明涉及一种烟丝膨胀的方法及采用该方法的设备。 背景技术
烟丝经膨胀介质(例如二氧化碳)浸渍后, 被送入以过热蒸汽 为主要气相的高温(320°C〜380°C )气流输送管道系统中进行膨胀 处理。 膨胀后的烟丝, 其膨胀率可达 100 %, 可大幅度地降低卷烟 单箱烟叶消耗量; 烟丝燃烧性能改善, 使烟气中焦油量明显降低, 并使有害物质减少。因此膨胀烟丝工艺与设备己被世界各国广泛采 用。
典型的 DIET (干冰膨胀烟丝) 工艺与设备, 是烟丝经二氧化 碳浸渍后, 经松丝器、 振动料仓和定量喂料, 送入高温气流输送膨 胀系统处理, 烟丝中的二氧化碳与水分快速气化而得到膨胀。经膨 胀后, 烟丝含水率为 2 %〜3 %。 该工艺被世界各国广泛采用后, 其缺陷也显露了出来, 即膨胀后烟丝造碎率较高, 烟丝中香味物质 大幅度降低, 甚至烟气中出现枯焦味。
根据 DIET工艺与设备的缺陷, 应运出现许多专利, 改进其工 艺与设备。 这些专利可分为两类: 一类是改进烟丝的浸渍系统, 包 括利用气体二氧化碳浸渍烟丝,和将烟丝压实后用较少量的液体二 氧化碳浸渍烟丝。这样浸渍的烟丝卸出后可立即松散, 不存在烟丝 成团结块而需由机械松散出现造碎的问题;另一类是改进高温气体 输送膨胀系统。 如美国 雷诺兹烟草公司的专利 (CN1174000A), 提出用大曲率半径的圆弧形(C形) 管道为输送膨胀管道, 管道横 截面宽度与厚度比率 (W / D) 为 5〜2 的矩形, 且管道有一逐渐 扩大后又逐渐縮小的厚度, 以减小烟丝输送膨胀过程的造碎。但这 种设备同样会使烟丝的干基含水率降至 3 %以下, 使烟丝中的香味 物质挥发较多, 影响烟丝质量。 日本烟草株式会社的专利 ( CN1061328A) 是在烟丝输送膨胀管道上设置若干个位于特定位 置的喷嘴, 通过喷嘴向高温气流中注入蒸汽或水雾, 以控制输送膨 胀管道内的气流温度 (由初始温度 320°C沿管道逐步降至 155 °C ), 使烟草在膨胀管道内所接受的热量减少,这种方法可减少烟丝中香 味物质的损失, 不会使烟气中出现枯焦味, 但由于从各个喷嘴中注 入的蒸汽或水雾量不易控制, 如果水雾化不好也影响膨胀效果。
迄今为止, 利用过热蒸气为干燥介质来膨胀烟丝, 无论采用哪 种方法, 欲求得高膨胀率, 均是将干基含水率降至 2 %〜3 %, 然 后再将膨胀后的烟丝回潮至所需要的干基含水率 13.6 %〜 14.3 %。 这样处理不仅导致烟丝造碎率高, 烟丝中香味物质损失多, 烟气中 出现枯焦味, 而且是能量的浪费。 事实上, 当烟丝干基含水率降至 8 %〜9 %之后, 继续干燥对其填充值与膨胀率已没有影响。而烟丝 干基含水率降至 8 %〜9 %之前的恒速干燥阶段, 烟丝温度是操作 压力下水的沸点温度 ( 100°C ), 不会造成烟丝中香味物质的大量损 失。 但是, 当烟丝干基含水率降至 2 %〜3 %近乎绝对干燥时, 烟 丝温度已接近干燥气流温度。干燥气流温度越高, 烟丝中香气物质 损失越多, 烟气中难免有枯焦味, 烟丝也易造碎。 因此, 防止膨胀 过程中烟丝温度过高, 需要控制烟丝干基含水率降至 8 %〜9 %以 下时的干燥气流温度。 发明内容
本发明的目的是提供一种烟丝膨胀率较高, 但其造碎率低, 烟 丝中香味物质不会大量减少,烟气中更不会出现枯焦味的膨胀烟丝 方法与设备。 本发明的目的是通过以下技术方案而实现:本发明提供的膨胀 烟丝方法, 是烟丝经过膨胀介质 (如二氧化碳)浸渍后, 流量均匀 地送入以过热蒸气为干燥介质、 初始温度为 320° (:〜 380°C的气流 输送膨胀管道系统内进行膨胀并干燥。干燥介质中过热蒸气体积与 干空气体积之比一般设定为 8 : 2〜9: 1。 提高输送膨胀管道系统 的料气比 (浸渍后烟丝质量与输送膨胀气流质量之比), 使其料气 比由小于 0.17增加到 0.2~0.35。 而且在输送膨胀管道内烟丝干基 含水率已降至 15 %〜 16.5 %的特定位置,将含湿量达到定值温度较 低的循环气流送入与输送膨胀气流混合,使输送膨胀气流温度在卸 料处降至 160°C , 最低降至 140°C。 这样即可防止膨胀后烟丝温度 过度升高, 并避免烟丝含水率过度降低至 2 %〜3 %。 提高输送膨 胀管道的料气比, 在气流输送速度不变、气流初始温度相同的条件 下, 即可使输送膨胀气流温度沿管道比较快地降低。最佳的料气比 为 0.25〜0.3。
从节能的角度出发, 输送膨胀气流在管道系统内循环使用。 由 于系统内有漏风及二氧化碳气化等原因,循环气体中过热蒸气体积 与干空气体积之比小于设定值。为了保持输送膨胀管道系统运行过 程工艺技术参数稳定, 向循环气流中送入温度为 105 °C〜130°C的 蒸气, 并控制其流量, 这可使循环气流含湿量达到定值, 且降低其 温度。
经过气流输送膨胀管道系统膨胀后的烟丝,其干基含水率是控 制在 6 %〜9 %范围内。
本发明提供的膨胀烟丝设备, 即气流输送膨胀管道系统, 包括 定量喂料设备、 进料气锁 (6)、 输送膨胀管道 (5 )、 落料器 (3 )、 卸料气锁 (1 )、 风机 (2 )、 除尘器 (19 )、 排气风机 (20 )、 蒸气供 给管 (17 )、 燃烧炉 (14 ) 及其连接管道与调节阀门。 在循环气流 管道 (18 ) 至输送膨胀管道 (5 ) 的 B— B截面处, 设有一旁通管 ( 10 ) 及调节阀 (11 ), 用于将含湿量为定值温度较低的循环气流 送到 B— B截面, 与输送膨胀气流混合。
在设备能力范围内,适当地调节系统内的调节阀门(15 )、(12 ) 及 (11 ), 即可控制系统的料气比, 并可调节经旁通管 (10 ) 送至 输送膨胀管道 (5 ) B— B截面的低温循环气流量。
本发明的优点是明显的,不仅保持了以过热蒸气为干燥介质进 行膨胀干燥所带来的烟丝膨胀率高、干燥速度快等优点, 更重要的 是避免了膨胀过程中烟丝香味物质的大量损失,烟丝大量造碎和烟 气中出现枯焦味, 可改善膨胀烟丝品质。 附图说明
图 1为实施例的膨胀烟丝设备示意图;
图 2 为不同料气比条件下输送膨胀气流温度沿管路的变化曲 线;
图 3为输送膨胀管道内当干基含水率降至 15 %〜16.5 %时气流 温度与料气比的关系。 具体实施方式
实施例 1 :
如图 1所示, 气流输送膨胀管道系统是封闭循环系统, 主要由 定量喂料设备、 进料气锁 6、 输送膨胀管道 5、 落料器 3、 卸料气 锁 1、 风机 2, 除尘器 19、 排气风机 20、 蒸气供给管 17、 燃烧炉 14及其连接管道与调节阀门所组成。 设定料气比为 0.28。 被二氧 化碳浸渍后的烟丝从料仓 8进入计量管 9, 经电子皮带秤 7和进料 气锁 6, 送入 330°C的气流输送膨胀管道 5内膨胀干燥。 管道 5总 长度 (从 A_ A截面至落料器 3的进口为 18.0m, 气流中过热蒸气 体积与干空气体积之比为 9 : 1, A— A截面的气流速度为 48.0 m / s o 膨胀干燥后的烟丝在落料器 3 内从气流中分离出来, 由卸料 气锁 1卸出。而输送膨胀气流经管道 4由风机 2排出。被排出的气 流小部分经调节阀 21进入除尘器 19净化, 由风机 20排入大气, 或送入燃烧炉 14焚化处理; 大部分气流被循环利用。 为了使循环 气流中过热蒸气体积与干空气体积之比达到 9 : 1, 并为了满足降 低输送膨胀管道 B— B 截面后的气流温度的要求, 由蒸气供给管 16向循环利用的气流中送入温度为 108 °C的蒸气, 由调节阀 17控 制其流量。 经温度和湿度调节后的循环气流, 60 %经调节阀 15进 入燃烧炉 14加热至 330°C, 再送入输送膨胀管道 5。 40 %直接经调 节阀 11和旁通管 10, 送入输送膨胀管道 5 的 B— B截面 (B— B 截面为低温循环气流与输送膨胀气流混合处) 与输送膨胀气流混 合, 以加速降低落料器 3进口段的气流温度。系统中还设置有调节 阀 12及其旁通管 13, 这是为了控制进入 A— A截面的气流温度稳 定。 当燃烧炉 14加热的气流温度偏高时, 可调整调节阀 12和 15, 适当减少加热气流量, 并经管道 13将适量的低温循环气流与加热 气流混合, 使输送膨胀气流温度达到设定值。
当料气比为 0.28 , 来料烟丝干基含水率为 28.2 % , 烟丝被浸渍 后含干冰量为 25.0 %的条件下,输送膨胀管道 5中接近 B— B截面 之前的气流温度降至 183 °C , 而落料器 3进口处气流温度降至 148 °C。
实施例 2 :
设定料气比为 0.25。 68 %的循环气流经调节阀 15进入燃烧炉 14中加热至 330°C, 再送入输送膨胀管道 5, 32 %的循环气流直接 经调节阀 11和旁通管道 10, 送入输送膨胀管道 5的 B— B截面处 与输送膨胀气流混合。其余的工艺技术条件与实施例 1相同, 即蒸 气管 16供给的蒸气温度为 108°C, 来料烟丝干基含水率为 28.2 %, 烟丝被浸渍后含干冰量为 25 %, 输送膨胀管道 5 的 A— A截面气 流速度为 48m/s, 气流中过热蒸气体积与干空气体积之比为 9: 1。 此时,输送膨胀管道 5中接近 B_B截面之前的气流温度为 198°C, 而落料器 3进口处气流温度为 163 °C。
实施例 3 :
设定料气比为 0.17。关闭调节阀 11,使其工艺技术条件与 DIET 工艺相同。来料烟丝干基含水率同样为 28.2 %, 浸渍后烟丝中含干 冰量为 25 %。 其余工艺技术条件也与实施例 1相同, 即输送膨胀 管道 5的 A— A截面气流速度为 48 m / s, 其气流初始温度为 330 °C, 气流中过热蒸气体积与干空气体积之比为 9: 1。 此时输送膨 胀管道 5中接近 B— B截面之前的气流温度为 233 °C, 而落料器 3 进口处气流温度为 218°C。 其结果与 DEIT工艺设备的运行情况吻 合。 表一与图 2 是不同料气比条件下输送膨胀气流温度沿管道变 化的情况。 从图 2中可以看出, 不同的料气比, 使输送膨胀气流温 度降低有不同的斜率。而烟丝含水率降至某一范围后, 气流温度的 降低较缓慢。但将含湿量为定值未加热的循环低温气流与输送膨胀 气流混合后, 气流温度的下降斜率又有所增加。
图 3是输送膨胀管道 5上接近 B— B截面之前的气流温度值与 料气比的关系。即气流温度值与料气比成反比。随着料气比的增加, 输送膨胀管道内气流温度明显降低。
烟丝输送膨胀过程中, 初始气流温度较高, 是烟丝膨胀的必要 条件。而烟丝干基含水率降至 9 %以后,输送膨胀气流温度降至 160 V, 甚至降至 140°C, 为防止膨胀烟丝大量造碎、 香味物质的损失 及烟气中出现枯焦味提供了保障, 是改善膨胀烟丝品质的重要方 表一 不同料气比对输送膨胀气流温度的影响 输送膨胀管道内气流温度 rc ) 膨 胀 后
料气 接近 B— 烟 丝 干
序号 A— A截 落 料 器 备 注 比 B截面之 基 含 水
面 进口处
前 率 (%)
在 B— B截 面处将低
1 0.28 330 183 148 ― 温循环气 流与输送 气流混合 在 B— B截 面处将低
2 0.25 330 198 163 6 % 温循环气 流与输送 气流混合 在 B— B截 面处没有 将低温循
3 0.17 330 233 218 2.5 %
环气流与 输送气流 混合

Claims

权 利 要 求
1、 一种膨胀烟丝的方法, 所述烟丝经过膨胀介质浸渍后, 流 量均匀地进入以过热蒸气为干燥介质、其过热蒸气体积与干空气体 积之比为 7: 3〜9: 1, 初始温度为 320〜380°C的气流输送膨胀管 道系统内进行膨胀并干燥, 其特征在于: 将输送膨胀管道系统料气 比由小于 0.17增加到 0.2〜0.35; 并在输送膨胀管道内烟丝干基含 水率已降至 15%〜16.5%的特定位置,送入含湿量为定值温度较低 的循环气流与输送膨胀气流混合,使输送膨胀气流温度在卸料处降 至 160°C, 最低降至 140° (:, 可防止烟丝膨胀后温度过度升高, 并 避免烟丝含水率过度降低至 2%〜3%。
2、 根据权利要求 1所述的膨胀烟丝方法, 其特征在于: 提高 输送膨胀管道的料气比, 在气流初始温度不变、气流输送速度相同 的条件下, 即可使输送膨胀气流温度沿管道较快地降低, 最佳料气 比为 0.25〜0.3。
3、 根据权利要求 1所述的膨胀烟丝方法, 其特征在于: 向输 送膨胀管道系统的循环气流中送入温度为 105〜130°C的蒸气, 并 控制其流量, 即可使循环气流含湿量达到定值, 降低其温度。
4、 根据权利要求 1所述的膨胀烟丝方法, 其特征在于, 经气 流输送膨胀管道系统膨胀后的烟丝, 其干基含水率是控制在 6%〜 9%的范围内。
5、根据权利要求 1〜4膨胀烟丝方法的设备, 即气流输送膨胀 管道系统: 包括定量喂料设备, 进料气锁(6)、输送膨胀管道(5)、 落料器 (3)、 风机 (2)、 卸料气锁 (1)、 除尘器 (19)、 排气风机
(20)、蒸气供给管(17)、燃烧炉(14)及其连接管道与调节阀门, 其特征在于, 在循环气流管道 (18) 至输送膨胀管道 (5) 的 B— B截面设有一旁通管 (10) 及调节阀 (11), 以便将含湿量为定值 温度较低的循环气流送至 B— B截面与输送膨胀气流混合。
6、 根据权利要求 5所述的膨胀烟丝设备, 其特征在于: 在设 备能力范围内适当控制系统内的调节阀门 (15)、 (12) 及 (11), 即可控制系统的料气比和经旁通管(10)送至 B— B截面的循环气
PCT/CN2003/000512 2003-06-30 2003-06-30 Procede et equipement pour la dilatation du tabac hache Ceased WO2005000043A1 (fr)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005062725B3 (de) * 2005-12-22 2007-07-12 Hauni Maschinenbau Ag Stromtrockner zum Trocknen eines faserförmigen Produkts
CN103610226A (zh) * 2013-12-16 2014-03-05 福建中烟工业有限责任公司 一种用于烟草气流干燥的含水率控制方法
CN103704867A (zh) * 2014-01-02 2014-04-09 福建中烟工业有限责任公司 一种提高梗丝品质的方法
CN104305515A (zh) * 2014-08-13 2015-01-28 上海烟草集团有限责任公司 叶丝干燥工序中叶丝含水率稳定性的诊断系统和诊断方法
WO2016145893A1 (zh) * 2015-03-18 2016-09-22 贵州中烟工业有限责任公司 一种密封设置的烟丝浸渍膨胀系统
WO2016181180A1 (en) * 2015-05-08 2016-11-17 Comas - Costruzioni Macchine Speciali - S.P.A. An improved method for expanding and drying of tobacco and plant for its implementation
CN108260841A (zh) * 2016-12-30 2018-07-10 贵州中烟工业有限责任公司 一种制叶丝化生产线及制叶丝的方法
CN108338395A (zh) * 2018-01-18 2018-07-31 河南中烟工业有限责任公司 一种有助于提高叶丝结构均匀性的分组加工工艺
CN108851165A (zh) * 2018-07-30 2018-11-23 重庆烟叶复烤有限公司万州复烤厂 一种烟草恒温润叶方法
CN110850836A (zh) * 2019-12-11 2020-02-28 中国烟草总公司郑州烟草研究院 一种隧道式增温增湿设备的出口物料含水率定量控制方法
CN110946306A (zh) * 2019-12-12 2020-04-03 河南中烟工业有限责任公司 一种基于滚筒式叶丝回潮的质量控制方法及系统
CN111165866A (zh) * 2019-12-12 2020-05-19 河南中烟工业有限责任公司 一种基于气流式梗丝干燥的质量控制方法及系统
CN112401294A (zh) * 2020-11-26 2021-02-26 湖北中烟工业有限责任公司 一种基于风力送丝智能诊断分析系统的诊断分析方法
CN115989884A (zh) * 2021-10-19 2023-04-21 贵州中烟工业有限责任公司 一种烟丝处理方法及烟丝处理设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4336814A (en) * 1977-08-08 1982-06-29 Philip Morris Incorporated Process for expanding tobacco
CN1063208A (zh) * 1991-01-15 1992-08-05 中国烟草总公司郑州烟草研究院 液体二氧化碳膨胀烟草的改良工艺及装置
US6209546B1 (en) * 1998-11-30 2001-04-03 Truman W. Ellison Apparatus and method for improved hydrate formation and improved efficiency of recovery of expansion agent in processes for expanding tobacco and other agricultural products
CN1426708A (zh) * 2001-12-21 2003-07-02 黄嘉礽 烟丝膨胀方法及设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4336814A (en) * 1977-08-08 1982-06-29 Philip Morris Incorporated Process for expanding tobacco
CN1063208A (zh) * 1991-01-15 1992-08-05 中国烟草总公司郑州烟草研究院 液体二氧化碳膨胀烟草的改良工艺及装置
US6209546B1 (en) * 1998-11-30 2001-04-03 Truman W. Ellison Apparatus and method for improved hydrate formation and improved efficiency of recovery of expansion agent in processes for expanding tobacco and other agricultural products
CN1426708A (zh) * 2001-12-21 2003-07-02 黄嘉礽 烟丝膨胀方法及设备

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WO2016181180A1 (en) * 2015-05-08 2016-11-17 Comas - Costruzioni Macchine Speciali - S.P.A. An improved method for expanding and drying of tobacco and plant for its implementation
CN107690286A (zh) * 2015-05-08 2018-02-13 Comas-建设专用机股份公司 用于膨胀和干燥烟草的改进方法以及用于实施它的设备
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CN108851165A (zh) * 2018-07-30 2018-11-23 重庆烟叶复烤有限公司万州复烤厂 一种烟草恒温润叶方法
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