GB975279A - A method of and apparatus for continuous freeze drying - Google Patents

A method of and apparatus for continuous freeze drying

Info

Publication number
GB975279A
GB975279A GB1277/62A GB127762A GB975279A GB 975279 A GB975279 A GB 975279A GB 1277/62 A GB1277/62 A GB 1277/62A GB 127762 A GB127762 A GB 127762A GB 975279 A GB975279 A GB 975279A
Authority
GB
United Kingdom
Prior art keywords
zones
freeze drying
vacuum
temperature
pressure
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.)
Expired
Application number
GB1277/62A
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.)
Leybold Anlagen Holding AG
Original Assignee
Leybold Anlagen Holding AG
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 Leybold Anlagen Holding AG filed Critical Leybold Anlagen Holding AG
Publication of GB975279A publication Critical patent/GB975279A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • F26B5/06—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum the process involving freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Drying Of Solid Materials (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)

Abstract

975,279. Vacuum freeze drying. LEYBOLD-ANLAGEN HOLDING A.G. Jan. 12, 1962 [Jan. 19, 1961], No. 1277/62. Heading F4G. In a method of continuous freeze drying, the material to be dried is conducted through a tubular vacuum-drying chamber having at least two longitudinal zones which are arranged to be at least partly isolated from one another, the process being controlled by producing in the zones predetermined levels of pressure and/or temperature which correspond to the required degree of dryness of the material in the zones. Material to be dried is conveyed through a tubular vacuum drying chamber 1 on linked trolleys 7 having baffles 20 thereon which conform to the cross-section of the chamber so as substantially to divide it into zones 2, 3, 4, in which the pressure and/or temperature can be controlled by evacuating means 17, 18, 19 respectively in accordance with a predetermined pressure and/or temperature programme. Vacuum gauges 14, 15 and 16 are provided, indicating the pressures in each zone and heatexchange devices (not shown) may also be utilized in each zone.
GB1277/62A 1961-01-19 1962-01-12 A method of and apparatus for continuous freeze drying Expired GB975279A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL37992A DE1135830B (en) 1961-01-19 1961-01-19 Method for regulating continuous freeze drying

Publications (1)

Publication Number Publication Date
GB975279A true GB975279A (en) 1964-11-11

Family

ID=7268127

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1277/62A Expired GB975279A (en) 1961-01-19 1962-01-12 A method of and apparatus for continuous freeze drying

Country Status (3)

Country Link
US (1) US3234661A (en)
DE (1) DE1135830B (en)
GB (1) GB975279A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3421229A (en) * 1966-01-27 1969-01-14 Karlsruhe Augsburg Iweka Method and device for conveying goods to and from a vacuum or pressure container

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1198294B (en) * 1963-04-06 1965-08-05 Leybold Hochvakuum Anlagen Continuously working freeze-drying chamber for goods in trays that will later serve as packaging
US3352024A (en) * 1965-01-21 1967-11-14 Commw Scient Ind Res Org Freeze-drying process
US3399875A (en) * 1966-04-21 1968-09-03 Alco Standard Corp Heat treating furnace
GB1199285A (en) * 1966-12-07 1970-07-22 H J Heinz Company Ltd Improvements in or Relating to Freeze Drying Apparatus
DK137287B (en) * 1970-08-25 1978-02-13 Atlas As Freeze dryer.
US3982890A (en) * 1971-03-18 1976-09-28 Cyclamatic, Inc. Method and apparatus for curing concrete products
CH561887A5 (en) * 1973-02-05 1975-05-15 Nestle Sa
US3815257A (en) * 1973-04-04 1974-06-11 Challenge Cook Bros Inc Continuous laundry dryer
US3864840A (en) * 1973-07-16 1975-02-11 Matthews Jr Donnell R Lyophilic waste disposal
US4104805A (en) * 1974-02-25 1978-08-08 Seymour C. Yuter Sequential drying system with isolated closed drying paths
US3973665A (en) * 1975-03-07 1976-08-10 Gca Corporation Article delivery and transport apparatus for evacuated processing equipment
US4117603A (en) * 1976-12-28 1978-10-03 Smith Walton J High vacuum freeze-drying
US4215489A (en) * 1978-07-17 1980-08-05 The Coe Manufacturing Company Roller dryer
EP0080873B1 (en) * 1981-11-30 1987-05-20 HICK HARGREAVES & COMPANY LIMITED A method of and apparatus for vacuum drying of systems
DK159488A (en) * 1988-03-23 1989-09-24 Danske Sukkerfab Apparatus for stretching of reinforcement lock strips
US5117564A (en) * 1989-05-09 1992-06-02 Mitsubishi Jukogyo Kabushiki Kaisha Continuous vacuum treatment system
ITMI20131016A1 (en) * 2013-06-19 2014-12-20 I M A Ind Macchine Automatic He S P A FEEDING SYSTEM IN A LIOFILIZING MACHINE FOR THE PHARMACEUTICAL SECTOR
GR20170100418A (en) * 2017-09-14 2019-05-09 Κωνσταντινος Αποστολου Αποστολιδης Method and machine for the drying of fruit, vegetables and other foodstuff via the continuous-flow freeze-drying technique

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1711100A (en) * 1925-10-24 1929-04-30 Payzant Henry Harris Dry kiln
US1867546A (en) * 1930-10-16 1932-07-19 Frick Co Quick freeze tunnel
US2285508A (en) * 1939-04-19 1942-06-09 Worth C Goss Internally heated drier
US2486876A (en) * 1943-11-18 1949-11-01 Arthur Wm Nelson Apparatus for and method of freezing food
US2457116A (en) * 1944-02-28 1948-12-28 Guardite Corp Vacuum drying
US2554560A (en) * 1946-03-21 1951-05-29 Craig Stanley Clifford Quick-freezing method and apparatus
GB748784A (en) * 1953-06-12 1956-05-09 Edwards & Co London Ltd W Improvements in or relating to vacuum freezing and/or vacuum freeze drying methods and apparatus
US2858795A (en) * 1954-05-24 1958-11-04 British Insulated Callenders Apparatus for drying and impregnating small articles
US2994132A (en) * 1956-08-22 1961-08-01 Neumann Karlheinz Freeze drying apparatus
DE1038988B (en) * 1956-08-22 1958-09-11 Leybold Hochvakuum Anlagen Control method of a freeze-drying and device for its execution

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3421229A (en) * 1966-01-27 1969-01-14 Karlsruhe Augsburg Iweka Method and device for conveying goods to and from a vacuum or pressure container

Also Published As

Publication number Publication date
DE1135830B (en) 1962-08-30
US3234661A (en) 1966-02-15

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