GB819643A - Method and apparatus for spray-drying solutions, dispersions and emulsions - Google Patents
Method and apparatus for spray-drying solutions, dispersions and emulsionsInfo
- Publication number
- GB819643A GB819643A GB34597/55A GB3459755A GB819643A GB 819643 A GB819643 A GB 819643A GB 34597/55 A GB34597/55 A GB 34597/55A GB 3459755 A GB3459755 A GB 3459755A GB 819643 A GB819643 A GB 819643A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- drying
- gas
- liquid
- sprayed
- 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
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B17/00—Methods preventing fouling
- B08B17/02—Preventing deposition of fouling or of dust
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
- A23C1/00—Concentration, evaporation or drying
- A23C1/04—Concentration, evaporation or drying by spraying into a gas stream
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/20—Sprayers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/10—Maintenance of mixers
- B01F35/145—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
- B05B3/1007—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member
- B05B3/1021—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member with individual passages at its periphery
- B05B3/1028—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member with individual passages at its periphery the passages comprising an insert
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
- B05B3/1057—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces with at least two outlets, other than gas and cleaning fluid outlets, for discharging, selectively or not, different or identical liquids or other fluent materials on the rotating element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F6/00—Air-humidification, e.g. cooling by humidification
- F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
- F24F6/06—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using moving unheated wet elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/001—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements incorporating means for heating or cooling, e.g. the material to be sprayed
-
- 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
- Y10S159/09—Two liquids dried simultaneously
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Drying Of Solid Materials (AREA)
Abstract
819,643. Spray evaporators; drying milk. LUWA A.G. Dec. 2, 1955 [Dec. 11, 1954], No. 34597/55. Class 32. [Also in Group XXIX] In a method of spray drying wherein a solution, dispersion or emulsion, comprising a. volatile liquid and a non-volatile constituent, is sprayed into a drying chamber, the deposition of the non-volatile constituent on the spraying device is obviated by supplying, to those parts of the device on which such deposition is liable to occur, a mixture of a gas and the vapour of a volatile liquid which prevents evaporation of the volatile liquid from the substance being sprayed at those particular parts of the device. In drying milk, the " blocking gas " is a mixture of air and water-vapour. The spraying device shown has a disc 20 mounted on shaft 10 which rotates in bearing 11. The bearing is mounted in supports connected with tube 15 which is fixed in the wall 15a of the drying chamber. The oil used for lubricating the bearing is guided by splash-ring 27 into an oil sump formed in bearing support 13, from which it is discharged through a conduit (not shown). The liquid to be sprayed is conveyed through a conduit (not shown) to annular duct 24, from which it passes through two small tubes 24a to the disc 20. This disc has an upstanding rim which forms a shallow well, the top of which is partly closed by annular plate 23. The liquid discharged from tubes 24a spreads along the bottom of the well in the rotating disc, and is sprayed out into the drying chamber through radial openings 21 in the rim of the disc. Hot gas flows through the drying chamber in either the same direction or the opposite direction to the sprayed liquid. In a specific example, milk is dehydrated using air at 140 C. as drying gas. In order to avoid incrustation in the space 19 between the rotating disc and the fixed plate 18, it is arranged that air containing water-vapour, at a temperature of about 50 C., flows continuously through the space. This is achieved by supplying air and water-vapour through conduits 14 and 26, respectively, to mixing chamber 16, from which the mixed gas flows through openings 17 into the space 19. The blocking gas flows from space 19 under a flange at the end of tube 15 into the drying chamber, the rotation of the gas being prevented by vanes 18a on the side of plate 18 facing the disc. The end of tube 15 may be made to project somewhat beyond the rim of disc 20 so as to approach the nozzle openings 21 as closely as possible ; blocking gas flowing out of space 19 can thus be brought into the immediate vicinity of the nozzles without being diluted by drying gas. In another embodiment, three currents of blocking gas are passed to the rotating disc, one of them being supplied via a bore-channel in the shaft. A rotating disc provided with radial blades may be used for spraying the liquid. A fixed spraying nozzle may also be used.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH819643X | 1954-12-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB819643A true GB819643A (en) | 1959-09-09 |
Family
ID=4539283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34597/55A Expired GB819643A (en) | 1954-12-11 | 1955-12-02 | Method and apparatus for spray-drying solutions, dispersions and emulsions |
Country Status (5)
Country | Link |
---|---|
US (1) | US2889873A (en) |
CH (1) | CH336753A (en) |
DE (1) | DE1110087B (en) |
GB (1) | GB819643A (en) |
NL (1) | NL108207C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4337895A (en) * | 1980-03-17 | 1982-07-06 | Thomas Gallen | High speed rotary atomizers |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK117820B (en) * | 1965-03-26 | 1970-06-01 | Atomizer N Ak | Atomizer wheel for atomizing slurries of highly abrasive materials. |
USRE29083E (en) * | 1965-03-26 | 1976-12-21 | Aktieselskabet Niro Atomizer | Atomizer wheel for the atomization of suspensions of hard-wearing materials |
US4141783A (en) * | 1972-08-29 | 1979-02-27 | Aktieselskabet Niro Atomizer | Spray drying atomizer wheel |
DK132161B (en) * | 1972-08-29 | 1975-11-03 | Niro Atomizer As | Process for spray-drying to produce powder from liquids of the kind which, on spray-drying, tend to give a voluminous powder, and atomizing for use in the practice of the process. |
NL7411475A (en) * | 1974-08-28 | 1976-03-02 | Stork Amsterdam | ROTATABLE NOZZLE FOR THE SPRAYING OF A LIQUID. |
US4082221A (en) * | 1974-08-28 | 1978-04-04 | Stork Amsterdam B.V. | Rotatable atomizer for spraying a liquid |
DK88080A (en) * | 1980-02-29 | 1981-08-30 | Niro Atomizer As | PROCEDURE FOR PREVENTING THE UNDESIGN MARKETING OF INCIDENTAL LIQUIDS IN THE AREA BETWEEN A ROTATING AND NEARING STATIONS PART BY A MOVE WHEEL IN A SURFACE PREPARATION AND ALTERNATING SYSTEM |
JPH0641603Y2 (en) * | 1990-03-08 | 1994-11-02 | 株式会社坂本技研 | Spray dryer |
US20060219816A1 (en) * | 2005-04-05 | 2006-10-05 | Durr Systems | Rotary atomizer component |
DE102005044154B4 (en) * | 2005-09-15 | 2007-09-27 | Dürr Systems GmbH | Rotationszerstäuberbauteil |
CN110076030B (en) * | 2019-03-13 | 2023-11-07 | 福建工程学院 | Quick detection and repair spraying device and method for spraying quality of engine bearing bush |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1634640A (en) * | 1927-07-05 | Spbay pbocessing appabatxts | ||
US2367770A (en) * | 1938-12-08 | 1945-01-23 | Drying & Concentrating Company | Apparatus for removing moisture from liquid products |
FR882189A (en) * | 1941-05-20 | 1943-05-20 | Deutsche Waffen & Munitionsfab | Spray nozzle |
BE488281A (en) * | 1946-04-09 | |||
US2584973A (en) * | 1947-04-10 | 1952-02-12 | Luwa S A | Cooling and sealing means for disk atomizer shafts |
DE847578C (en) * | 1947-04-10 | 1952-08-25 | Carl Andermatt | Device on bearings of high-speed atomizer disk shafts, especially for dryers |
DE825379C (en) * | 1948-11-26 | 1951-12-17 | Emil Kirschbaum Dr Ing | Atomizing nozzle |
DE857924C (en) * | 1949-06-03 | 1952-12-04 | Emil Dr-Ing Kirschbaum | Atomizing nozzle |
-
0
- NL NL108207D patent/NL108207C/xx active
-
1954
- 1954-12-11 CH CH336753D patent/CH336753A/en unknown
-
1955
- 1955-11-07 DE DEL23372A patent/DE1110087B/en active Pending
- 1955-12-02 GB GB34597/55A patent/GB819643A/en not_active Expired
- 1955-12-07 US US551623A patent/US2889873A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4337895A (en) * | 1980-03-17 | 1982-07-06 | Thomas Gallen | High speed rotary atomizers |
Also Published As
Publication number | Publication date |
---|---|
NL108207C (en) | 1900-01-01 |
US2889873A (en) | 1959-06-09 |
CH336753A (en) | 1959-02-28 |
DE1110087B (en) | 1961-06-29 |
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