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FR2275767A1 - Tobacco humidity measurement by weight loss - heater controlled by auto transformer to dry tobacco - Google Patents

Tobacco humidity measurement by weight loss - heater controlled by auto transformer to dry tobacco

Info

Publication number
FR2275767A1
FR2275767A1 FR7421505A FR7421505A FR2275767A1 FR 2275767 A1 FR2275767 A1 FR 2275767A1 FR 7421505 A FR7421505 A FR 7421505A FR 7421505 A FR7421505 A FR 7421505A FR 2275767 A1 FR2275767 A1 FR 2275767A1
Authority
FR
France
Prior art keywords
tobacco
air
weight loss
humidity measurement
auto transformer
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7421505A
Other languages
French (fr)
Other versions
FR2275767B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cegelec SA
Original Assignee
Cegelec SA
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.)
Filing date
Publication date
Application filed by Cegelec SA filed Critical Cegelec SA
Priority to FR7421505A priority Critical patent/FR2275767A1/en
Publication of FR2275767A1 publication Critical patent/FR2275767A1/en
Application granted granted Critical
Publication of FR2275767B1 publication Critical patent/FR2275767B1/fr
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B9/00—Control of the moisture content of tobacco products, e.g. cigars, cigarettes, pipe tobacco
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02—Food
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
    • G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
    • G01N5/045—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder for determining moisture content

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Food Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Medicinal Chemistry (AREA)
  • Manufacture Of Tobacco Products (AREA)

Abstract

Humidity content of substances such as tobacco is measured by determining the loss of weight after hot air is passed through the substance. A particular air temperature is required and differences are accounted for by a calibration chart. Repetitive cycles are avoided by using an autotransformer to regulate heater power. The substance under test is placed in a drying container through which heated air at a particular temperature is passed. The air is obtained by blowing air through a tube containing a heating element (31). This heater is connected to the output terminals (34) of an autotransformer (32) through a control knob (33) with cursor (35) thus enabling the ideal temperature to be rapidly obtained. The transformer is connected to a power source through fuses (37).
FR7421505A 1974-06-20 1974-06-20 Tobacco humidity measurement by weight loss - heater controlled by auto transformer to dry tobacco Granted FR2275767A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7421505A FR2275767A1 (en) 1974-06-20 1974-06-20 Tobacco humidity measurement by weight loss - heater controlled by auto transformer to dry tobacco

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7421505A FR2275767A1 (en) 1974-06-20 1974-06-20 Tobacco humidity measurement by weight loss - heater controlled by auto transformer to dry tobacco

Publications (2)

Publication Number Publication Date
FR2275767A1 true FR2275767A1 (en) 1976-01-16
FR2275767B1 FR2275767B1 (en) 1976-10-22

Family

ID=9140315

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7421505A Granted FR2275767A1 (en) 1974-06-20 1974-06-20 Tobacco humidity measurement by weight loss - heater controlled by auto transformer to dry tobacco

Country Status (1)

Country Link
FR (1) FR2275767A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2587801A1 (en) * 1985-09-20 1987-03-27 Tabacs & Allumettes Ind METHOD AND APPARATUS FOR CONTROLLED DESSICATION OF A MASS OF A TOBACCO SAMPLE
CN106617245A (en) * 2017-01-20 2017-05-10 福建中烟工业有限责任公司 Method, device and system for controlling moisture content of expanded tobacco at in-site pneumatic separation outlet
CN107095340A (en) * 2017-05-26 2017-08-29 上海烟草集团有限责任公司 A kind of method for improving cigarette Moisture stability

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2587801A1 (en) * 1985-09-20 1987-03-27 Tabacs & Allumettes Ind METHOD AND APPARATUS FOR CONTROLLED DESSICATION OF A MASS OF A TOBACCO SAMPLE
EP0220972A1 (en) * 1985-09-20 1987-05-06 Societe Nationale D'exploitation Industrielle Des Tabacs Et Allumettes Method and apparatus for controlling the drying process of a tobacco sample having a certain weight
CN106617245A (en) * 2017-01-20 2017-05-10 福建中烟工业有限责任公司 Method, device and system for controlling moisture content of expanded tobacco at in-site pneumatic separation outlet
CN106617245B (en) * 2017-01-20 2018-06-05 福建中烟工业有限责任公司 Selection by winnowing exports method for controlling water content, device and system to expanded cut tobacco on the spot
CN107095340A (en) * 2017-05-26 2017-08-29 上海烟草集团有限责任公司 A kind of method for improving cigarette Moisture stability

Also Published As

Publication number Publication date
FR2275767B1 (en) 1976-10-22

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Legal Events

Date Code Title Description
ST Notification of lapse