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 likeInfo
- 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
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.
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)
| 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)
| 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)
| 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 |
-
1950
- 1950-11-29 US US198069A patent/US2747660A/en not_active Expired - Lifetime
- 1950-11-30 GB GB29354/50A patent/GB712746A/en not_active Expired
Cited By (1)
| 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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