GB712746A - An improved spray drying process and apparatus for evaporating solutions, emulsions,suspensions and the like - Google Patents

An improved spray drying process and apparatus for evaporating solutions, emulsions,suspensions and the like

Info

Publication number
GB712746A
GB712746A GB29354/50A GB2935450A GB712746A GB 712746 A GB712746 A GB 712746A GB 29354/50 A GB29354/50 A GB 29354/50A GB 2935450 A GB2935450 A GB 2935450A GB 712746 A GB712746 A GB 712746A
Authority
GB
United Kingdom
Prior art keywords
chamber
drying
drying chamber
metres
gas
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
GB29354/50A
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.)
LISS OLOF JAN CAMPBELL
Original Assignee
LISS OLOF JAN CAMPBELL
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 LISS OLOF JAN CAMPBELL filed Critical LISS OLOF JAN CAMPBELL
Publication of GB712746A publication Critical patent/GB712746A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/16—Evaporating by spraying
    • B01D1/18—Evaporating by spraying to obtain dry solids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S159/00—Concentrating evaporators
    • Y10S159/36—Rabbled hearth

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

In a spray-evaporating process, the drying gas is sent through the drying chamber with so great an axial velocity of flow (V metres per sec.) that the expression <FORM:0712746/III/1> is at least equal to 5, where ti is the inlet temperature and tu is the outlet temperature of the drying gas (in DEG C.) and G is the quantity of water (kgs. per sec.). The velocity is greater than that previously employed, enabling the dimensions of the drying chamber to be reduced and effecting economies in heat. In an example ti is 160 DEG C., tu is 80 DEG C. and V is 0.67 metres/sec. evaporated per unit of time. The diameter of the chamber is 2.5 metres and its <PICT:0712746/III/1> height 3 metres whereby a particle is in the chamber for 4.5 secs. As described milk is introduced into a drying chamber 1 through an atomiser 4 driven by a motor in a housing 5. Drying gas is supplied through a chamber 7 communicating with the drying chamber 1 through an annular opening 8 provided with adjustable guide blades 9 adapted to be turned about vertical axes whereby the gas may be directed more or less inwardly towards the central portion of the drying chamber 1. The gas flows through the chamber in helical paths and escapes through an outlet 11 also having guide blades 12 which are adjustable into different angular positions for separating dried solids from gases. Dried particles are removed through apertures 13 in the bottom of the drying chamber by a rotating scraper 14.
GB29354/50A 1949-12-08 1950-11-30 An improved spray drying process and apparatus for evaporating solutions, emulsions,suspensions and the like Expired GB712746A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE712746X 1949-12-08

Publications (1)

Publication Number Publication Date
GB712746A true GB712746A (en) 1954-07-28

Family

ID=20315767

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29354/50A Expired GB712746A (en) 1949-12-08 1950-11-30 An improved spray drying process and apparatus for evaporating solutions, emulsions,suspensions and the like

Country Status (2)

Country Link
US (1) US2747660A (en)
GB (1) GB712746A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1199191B (en) * 1963-02-02 1965-08-19 Krauss Maffei Ag Atomization dryer with a vertical axis

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1205833A (en) * 1957-05-17 1960-02-04 Birs Beteiligungs Und Verwaltu Process for evaporating solutions and suspensions, apparatus for its implementation, products obtained and their applications
DE2201111A1 (en) * 1971-01-19 1972-07-27 Niro Atomizer As Atomization drying device for the production of powder, e.g. Milk powder

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1107784A (en) * 1913-11-10 1914-08-18 Aage Jensen Process of desiccating.
US1157935A (en) * 1915-06-14 1915-10-26 Chester Earl Gray Method of and apparatus for desiccating liquid substances.
DE357205C (en) * 1917-04-03 1922-08-19 G A Krause & Co Ag Processes and devices for obtaining solid constituents from liquids by evaporation
DE857684C (en) * 1948-01-30 1952-12-01 Gustavsbergs Fabriker Ab Boiler with a combustion chamber surrounded by a water jacket

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1199191B (en) * 1963-02-02 1965-08-19 Krauss Maffei Ag Atomization dryer with a vertical axis

Also Published As

Publication number Publication date
US2747660A (en) 1956-05-29

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