GB1027176A - Improvements in or relating to freeze drying - Google Patents

Improvements in or relating to freeze drying

Info

Publication number
GB1027176A
GB1027176A GB4222662A GB4222662A GB1027176A GB 1027176 A GB1027176 A GB 1027176A GB 4222662 A GB4222662 A GB 4222662A GB 4222662 A GB4222662 A GB 4222662A GB 1027176 A GB1027176 A GB 1027176A
Authority
GB
United Kingdom
Prior art keywords
product
liquid
freeze
hoppers
drying
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
GB4222662A
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.)
Hupp Corp
Original Assignee
Hupp Corp
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
Priority claimed from US151824A external-priority patent/US3157476A/en
Priority claimed from US234285A external-priority patent/US3266169A/en
Application filed by Hupp Corp filed Critical Hupp Corp
Publication of GB1027176A publication Critical patent/GB1027176A/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
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
    • F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
    • F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Biomedical Technology (AREA)
  • Biotechnology (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

1,027,176. Freeze drying. HUPP CORPORATION. Nov. 8, 1962 [Nov. 13, 1961; Oct. 31, 1962], No. 42226/62. Heading F4G. In apparatus for freeze-drying liquid and semi-liquid products the product is reduced to a finely divided frozen powder, disposed in a chamber evacuated to a degree such that water can not exist in the liquid phase, and warmed sufficiently to sublimate the water from the product. In a freeze-drying apparatus a liquid or semi-liquid product is frozen and comminuted in chambers (not shown) and passed as a finely divided frozen powder into feed hoppers 90, 92 for passage via alternately operated valved conduits, evacuate hoppers 102, 104 and vibrating feeder 124 as a thin layer of substantially uniform thickness on to a continuously operating conveyer 128 in a chamber 106 maintained at a pressure not exceeding 0À18 inch of mercury absolute. Radiators 136, 138 are mounted above and below the run of the conveyer for sublimation of the water content and the dried product flows into one of two evacuable discharge hoppers 140, 142. At least one side of the conveyer belt adjacent the radiators is coated with radiant energy-absorbing material, and the layer thickness is substantially less than one inch. The product may be reduced to powder by spraying into a stream of cold, inert gas. The product may be heated or cooled after the moisture has been sublimed therefrom.
GB4222662A 1961-11-13 1962-11-08 Improvements in or relating to freeze drying Expired GB1027176A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US151824A US3157476A (en) 1961-11-13 1961-11-13 Radiant energy heat treating improvements
US234285A US3266169A (en) 1962-10-31 1962-10-31 Vacuum freeze drying apparatus

Publications (1)

Publication Number Publication Date
GB1027176A true GB1027176A (en) 1966-04-27

Family

ID=26849001

Family Applications (2)

Application Number Title Priority Date Filing Date
GB4222662A Expired GB1027176A (en) 1961-11-13 1962-11-08 Improvements in or relating to freeze drying
GB3855964A Expired GB1027177A (en) 1961-11-13 1962-11-08 Conveyor type heat transfer apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3855964A Expired GB1027177A (en) 1961-11-13 1962-11-08 Conveyor type heat transfer apparatus

Country Status (1)

Country Link
GB (2) GB1027176A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2101131A1 (en) * 2007-12-31 2009-09-16 Terruzzi Fercalx S.p.A. Lyophilization method and system therefor
WO2017084162A1 (en) * 2015-11-17 2017-05-26 上海东富龙科技股份有限公司 Full-automatic sealed-type spray-freeze-drying production equipment and method
CN112955708A (en) * 2018-10-29 2021-06-11 新西兰冻干食品有限公司 Continuous freeze dryer, hopper and freeze drying method
CN117367043A (en) * 2023-12-07 2024-01-09 欣诺泰克(江苏)智造科技有限公司 Vacuum freeze drier

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5033203A (en) * 1990-02-23 1991-07-23 Hughes Aircraft Company Curing oven using Wellsbach conversion
EP0559012A1 (en) * 1992-03-05 1993-09-08 Hans Jürgen Enning Process and installation for drying digerted sludge

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2101131A1 (en) * 2007-12-31 2009-09-16 Terruzzi Fercalx S.p.A. Lyophilization method and system therefor
WO2017084162A1 (en) * 2015-11-17 2017-05-26 上海东富龙科技股份有限公司 Full-automatic sealed-type spray-freeze-drying production equipment and method
CN112955708A (en) * 2018-10-29 2021-06-11 新西兰冻干食品有限公司 Continuous freeze dryer, hopper and freeze drying method
CN117367043A (en) * 2023-12-07 2024-01-09 欣诺泰克(江苏)智造科技有限公司 Vacuum freeze drier
CN117367043B (en) * 2023-12-07 2024-04-02 欣诺泰克(江苏)智造科技有限公司 Vacuum freeze drier

Also Published As

Publication number Publication date
GB1027177A (en) 1966-04-27

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