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Tobacco expansion method and apparatus

A technology of tobacco and equipment, which is applied in the direction of tobacco, tobacco preparation, food forming, etc., to achieve the effect of effective treatment

Inactive Publication Date: 2013-03-06
PHILIP MORRIS PROD SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pressure cylinder is in fluid communication with the chamber

Method used

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  • Tobacco expansion method and apparatus
  • Tobacco expansion method and apparatus

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Experimental program
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Effect test

Embodiment Construction

[0051] figure 1 The tobacco expansion device 1 shown in comprises a rotating member 2 which is rotatable about an axis of rotation 3 which is arranged substantially vertically in a substantially central position of the rotating member 2 .

[0052] figure 1 The dotted lines at indicate parts of the tobacco expansion device that would normally be hidden as they are located within the tobacco expansion device or on the rear side of the tobacco expansion device.

[0053] In this embodiment, the rotating member 2 has a substantially cylindrical outer shape and circular flat upper and lower surfaces. The rotating member 2 may be driven by any suitable drive means, for example by a servo motor or a stepper motor.

[0054] The rotating member 2 is provided with tobacco chambers 3 , 4 which are located in a radially outer region of the rotating member 2 when viewed from the axis of rotation 3 . The tobacco chambers 3, 4 extend from the upper surface of the rotating member 2 to the l...

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PUM

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Abstract

The present invention relates to a method of expanding tobacco, comprising the steps of providing the tobacco in a substantially hermetically sealable chamber (3, 4, 24, 25, 26, 27) with ambient pressure, wherein a pressure cylinder (12) is in fluid communication with the chamber (3, 4, 24, 25, 26, 27), the pressure cylinder (12) further comprising a piston (14); and moving the piston (14) of the pressure cylinder (12) such that the pressure in the chamber (3, 4, 24, 25, 26, 27) is altered to a pressure different to ambient pressure. When the tobacco is provided in the substantially hermetically sealable chamber (3, 4, 24, 25, 26, 27) a first lock (5, 6) of the chamber (3, 4, 24, 25, 26, 27) is dislocated to create a first opening in the chamber, and the tobacco is inserted into the chamber through the first opening. After the tobacco has been expanded in the chamber, the second lock (7, 8) of the chamber is dislocated to create a second opening in the chamber, and the expanded tobacco is discharged from the chamber through the second opening. The present invention further relates to a tobacco expansion apparatus.

Description

technical field [0001] The present invention relates to a method of expanding tobacco and to tobacco expansion apparatus. Background technique [0002] In the prior art, methods are known for expanding tobacco, which consist in placing wet shredded tobacco in a stream of conveying medium traveling at high speed and at high temperature. Typically, the transport medium is air or saturated or superheated steam, which simultaneously expands and dries the tobacco. In such expansion devices, the ratio of conveying medium and tobacco cannot be adjusted freely, since the tobacco is conveyed by the same medium, but the ratio must be chosen to allow the conveying and drying of the tobacco. Another disadvantage of using a delivery medium to expand tobacco is that it requires a relatively large amount of space. Furthermore, pressurization significantly above or below atmospheric pressure cannot be used. An example of such a method known in the prior art can be found in US 5,251,649. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/18A23P1/14
CPCA24B3/182A23P1/146A23P30/36A24B3/18
Inventor O·维拉格
Owner PHILIP MORRIS PROD SA