IE32146B1 - Drying process and apparatus - Google Patents

Drying process and apparatus

Info

Publication number
IE32146B1
IE32146B1 IE721/68A IE72168A IE32146B1 IE 32146 B1 IE32146 B1 IE 32146B1 IE 721/68 A IE721/68 A IE 721/68A IE 72168 A IE72168 A IE 72168A IE 32146 B1 IE32146 B1 IE 32146B1
Authority
IE
Ireland
Prior art keywords
freeze drying
chamber
orifice
coffee
gas
Prior art date
Application number
IE721/68A
Other versions
IE32146L (en
Original Assignee
Nestle 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 Nestle Sa filed Critical Nestle Sa
Publication of IE32146L publication Critical patent/IE32146L/en
Publication of IE32146B1 publication Critical patent/IE32146B1/en

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
    • F26B5/065—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 the product to be freeze-dried being sprayed, dispersed or pulverised
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
    • A23F5/00—Coffee; Coffee substitutes; Preparations thereof
    • A23F5/24—Extraction of coffee; Coffee extracts; Making instant coffee
    • A23F5/28—Drying or concentrating coffee extract
    • A23F5/32—Drying or concentrating coffee extract by lyophilisation
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
    • A23F5/00—Coffee; Coffee substitutes; Preparations thereof
    • A23F5/24—Extraction of coffee; Coffee extracts; Making instant coffee
    • A23F5/28—Drying or concentrating coffee extract
    • A23F5/34—Drying or concentrating coffee extract by spraying into a gas stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0004—Crystallisation cooling by heat exchange
    • B01D9/0009—Crystallisation cooling by heat exchange by direct heat exchange with added cooling fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0018—Evaporation of components of the mixture to be separated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0018—Evaporation of components of the mixture to be separated
    • B01D9/0027—Evaporation of components of the mixture to be separated by means of conveying fluid, e.g. spray-crystallisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Food Science & Technology (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molecular Biology (AREA)
  • Health & Medical Sciences (AREA)
  • Tea And Coffee (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

1,186,477. Freeze drying coffee and tea extracts. NESTL 'S PRODUCTS Ltd. 24 June, 1968 [6 July, 1967], No. 29930/68. Heading A2B [Also in Division F4] In freeze drying liquids (e.g. coffee or tea extracts), the liquid and a gas are simultaneously sprayed through nozzle 2 into a freezing chamber 1 at subatmospheric pressure to form frozen particles and the frozen particles are subsequently freeze dried in a freeze drying chamber (not shown). The liquid may be sprayed in the form of a conical sheet through orifice 13 and the gas in the form of an annular curtain through orifice 15. The chamber 1 is connected to condensers 5 and vacuum pump 9. [GB1186477A]
IE721/68A 1967-07-06 1968-06-18 Drying process and apparatus IE32146B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH956967A CH469957A (en) 1967-07-06 1967-07-06 Process for preparing a substance in the dry state starting from a solution or suspension of this substance and apparatus for its implementation
CH1406867A CH486678A (en) 1967-07-06 1967-10-09 Process for preparing a substance in the dry state from a solution or suspension of this substance

Publications (2)

Publication Number Publication Date
IE32146L IE32146L (en) 1969-01-06
IE32146B1 true IE32146B1 (en) 1973-05-02

Family

ID=25705004

Family Applications (1)

Application Number Title Priority Date Filing Date
IE721/68A IE32146B1 (en) 1967-07-06 1968-06-18 Drying process and apparatus

Country Status (8)

Country Link
AT (1) AT309970B (en)
BE (1) BE716239A (en)
CH (2) CH469957A (en)
DE (1) DE1778902B2 (en)
FR (1) FR1570776A (en)
GB (1) GB1186477A (en)
IE (1) IE32146B1 (en)
NL (1) NL6809515A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6935049B2 (en) * 2003-12-24 2005-08-30 Edward K. Alstat Method and apparatus for reclaiming effluent from a freeze-drying process, and uses for effluent
CN113462480B (en) * 2021-08-16 2024-03-08 西安鸿生新成生物科技有限公司 Atomizing distillation process for volatile components in plants
CN113803965A (en) * 2021-08-28 2021-12-17 绍兴沃莱食品机械有限公司 Be applied to many cold traps of freeze-drying equipment and spread water, ordinary pressure defrosting device

Also Published As

Publication number Publication date
CH486678A (en) 1970-02-28
GB1186477A (en) 1970-04-02
BE716239A (en) 1968-12-09
DE1778902A1 (en) 1972-02-17
NL6809515A (en) 1969-01-08
AT309970B (en) 1973-09-10
DE1778902B2 (en) 1975-05-28
IE32146L (en) 1969-01-06
CH469957A (en) 1969-03-15
FR1570776A (en) 1969-06-13

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