GB565476A - A process and apparatus for drying substances - Google Patents
A process and apparatus for drying substancesInfo
- Publication number
- GB565476A GB565476A GB138143A GB138143A GB565476A GB 565476 A GB565476 A GB 565476A GB 138143 A GB138143 A GB 138143A GB 138143 A GB138143 A GB 138143A GB 565476 A GB565476 A GB 565476A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air
- stream
- pipe
- conduit
- surrounding
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
565,476. Spray evaporators. BERK & CO., Ltd., F. W., SIX, G. J., and SIX, C. G. Jan. 27, 1943, No. 1381. [Class 32] Dilute solutions, vegetable pulps, clay slurries and heat sensitive materials, e.g. white precipitate of mercury (HgNH2Cl), corrosive solutions, e.g. cupric chloride, are dried by spraying the solution &c. by means of a compressed gas, e.g. air, nitrogen, carbon dioxide, &c., to form an upwardly directed non-rotating cylindrical stream, which is surrounded by an upwardly directed stream of hot gas, e.g. air free from longitudinal vortices, the velocity of the sprayed solution being much greater than the velocity of the surrounding stream of hot gas. Nozzle speeds of 100-150 ft. per sec. for the surrounding air stream and from 600-2,400 ft. per sec. for the inner stream are specified. The non- rotating blast is obtained by placing thin strengthening blades or vanes in the conduit supplied with hot air from a fan. The solution or slurry is fed by a roller pump through a pipe 9 and injected upwardly by compressed air from a pipe 10 into a conduit 8 through which the surrounding stream of hot air is pumped. The conduit, Fig. 3, is provided with radial blades 15 mounted on a cylindrical ring 16 and a pipe 17 which receives the pipe 10. The streams are sprayed upwardly into a duct bag 1 mounted on a wooden frame 3 supported by a rope 4. The dried powder is removed through hoppers 6. A hydrometer 7 is provided to determine the humidity of the air, and the surface area of the filter bag is maintained in determined relation to the volume of damp air leaving the bag.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB138143A GB565476A (en) | 1943-01-27 | 1943-01-27 | A process and apparatus for drying substances |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB138143A GB565476A (en) | 1943-01-27 | 1943-01-27 | A process and apparatus for drying substances |
Publications (1)
Publication Number | Publication Date |
---|---|
GB565476A true GB565476A (en) | 1944-11-13 |
Family
ID=9721022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB138143A Expired GB565476A (en) | 1943-01-27 | 1943-01-27 | A process and apparatus for drying substances |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB565476A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1105348B (en) * | 1958-04-02 | 1961-04-20 | Keramische Ind Bedarfs Kom Ges | Dryer for ceramic base material, e.g. B. Clay slip |
EP0503187A1 (en) * | 1991-03-12 | 1992-09-16 | Ohkawara Kakohki Co., Ltd. | Two-fluid pressure nozzle of upward injection type |
-
1943
- 1943-01-27 GB GB138143A patent/GB565476A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1105348B (en) * | 1958-04-02 | 1961-04-20 | Keramische Ind Bedarfs Kom Ges | Dryer for ceramic base material, e.g. B. Clay slip |
EP0503187A1 (en) * | 1991-03-12 | 1992-09-16 | Ohkawara Kakohki Co., Ltd. | Two-fluid pressure nozzle of upward injection type |
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