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    • 78. 发明授权
    • IMPROVEMENTS IN OR RELATING TO ROTARY TOBACCO TREATMENT CYLINDERS
    • 可旋转的滚筒FOR烟草依赖治疗
    • EP0497840B1
    • 1997-04-16
    • EP90916051.7
    • 1990-11-02
    • GBE INTERNATIONAL PLC
    • WHITE, Victor, Albert, Montgomery
    • A24B3/04A24B3/18
    • A24B3/18A24B3/04
    • A rotary tobacco treatment cylinder comprises an elongate hollow cylinder arranged to rotate about its longitudinal axis and disposed substantially horizontally or inclined by a small angle (α) to the horizontal, a series of elongate paddles extending longitudinally within the cylinder and extending generally towards the longitudinal axis from the inside surface of the cylinder, said paddles serving to convey material to be treated from a lower position within the conveyor and around one side to an upper discharge position. Each of said paddles has a proximal portion (20) extending at a first angle being a right angle to the tangent at the root of said proximal portion or an angle less than a right angle at the loaded side of the paddle, and a distal portion (22) which is inclined to the proximal portion at a second angle, which is less than the first angle, to form a tip. A major part of the tip considered longitudinally is of a length (viewed axially of the cylinder) less than half the length of the proximal portion. The angle (β) of the tip of each paddle to the tangent at the root of the proximal portion is such that at a predetermined release point the tip is at the angle of sliding (S), the surface of the tobacco charge just contained by the tip being at the angle of repose (R).
    • 79. 发明公开
    • Tobacco expansion method
    • 烟草扩张方法
    • EP0756829A2
    • 1997-02-05
    • EP96111020.2
    • 1996-07-09
    • SCW, INC.
    • Wagner, John R.Smith, J.E. Howard
    • A24B3/18
    • A24B3/182Y10S131/901Y10S131/902
    • A tobacco expansion method is provided whereby cured tobacco is first moistened with a humectant solution, as is conventional in the industry, to increase the resident liquids thereof. Next, the prepared tobacco in shredded form is placed in a sealed chamber and the chamber evacuated to vaporize a portion of the resident liquids. Next, ethyl alcohol vapor is allowed to enter the pressure chamber below 70 mm (Hg) absolute to prevent a water-ethyl alcohol azeotrope from forming. Thereafter, a hydrocarbon vapor, such as n-pentane vapor, is directed into the chamber and the pressure restored to atmospheric. The n-pentane vapor diffuses into the cellular structure of the tobacco with the assistance of the ethyl alcohol, whereafter the tobacco is heated and the n-pentane and ethyl alcohol acts as a propellant to expand the tobacco.
    • 提供了一种烟草膨胀方法,其中如工业上常规的那样,首先将经过烘烤的烟草用保湿剂溶液润湿以增加其驻留液体。 接下来,将制成的碎烟丝状物放置在密封室中,抽空该室以蒸发一部分驻留液体。 接下来,允许乙醇蒸气进入压力室低于70mm(Hg)绝对值以防止形成水 - 乙醇共沸物。 此后,将碳氢化合物蒸气如正戊烷蒸气引入室中,压力恢复到大气压。 正戊烷蒸气在乙醇的帮助下扩散到烟草的细胞结构中,然后加热烟草并且正戊烷和乙醇充当推进剂以扩展烟草。