GB919632A - Improvements in pneumatic driers - Google Patents
Improvements in pneumatic driersInfo
- Publication number
- GB919632A GB919632A GB3947462A GB3947462A GB919632A GB 919632 A GB919632 A GB 919632A GB 3947462 A GB3947462 A GB 3947462A GB 3947462 A GB3947462 A GB 3947462A GB 919632 A GB919632 A GB 919632A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- nozzle
- air
- drying
- drier
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/10—Suction rolls, e.g. couch rolls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/10—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers
- F26B17/101—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers the drying enclosure having the shape of one or a plurality of shafts or ducts, e.g. with substantially straight and vertical axis
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
919,632. Drying apparatus. MARK, A. Feb. 17, 1959 [Feb. 20, 1958], No. 39474/62. Divided out of 919,631. Class 34 (2). In a pneumatic drier of the kind comprising one or more tubular vertical drying chambers inserted in a drying conduit to receive a gas stream carrying in the suspended state a divided material to be dried, the or each chamber having a lower axial inlet and an upper axial outlet, additional fresh hot drying gas is admitted tangentially into the or at least one of the said chambers at a point situated at a vertical distance from the said inlet at least equal to half the inner height of the chamber. The drier shown comprises drying chambers 28, 29, Fig. 3, of bi-conical shape disposed in vertical succession, the maximum diameter of the upper chamber being larger than that of the lower one. Moist material is fed into the chamber 28 in front of a jet of hot air issuing from a nozzle 4 from a hopper 13a through a screw-feeder 11, 12a. In the upper portion of each chamber additional fresh air from the generator 2 is introduced tangentially through inlets 10<SP>1</SP>, 10<SP>11</SP> such that the heaviest particles in the said portion are centrifugal against the conical wall thereof and tend to roll downwardly thereby increasing their time in the chamber. Balls 27 in the upper chamber 29 are " fluidized " by the rising air and thus form a vibrating screen preventing the heaviest particles rising directly into the upper portion of the chamber 29 without previously whirling in the lower portion thereof. The air stream is drawn through the drier by an exhaust blower 8 partial recirculation of the air occurring through a pipe 30 which connects the outlet of the blower with a nozzle 31 disposed coaxially in the nozzle 4. A blower may be provided between the generator 2 and the pipe 10. In the latter case the recirculating pipe and nozzle 31, 30 may be dispensed with. A further embodiment is described with reference to Figs. 1 and 2 (not shown) which is identical with that described in Specification 919,631.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR69038148 | 1958-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB919632A true GB919632A (en) | 1963-02-27 |
Family
ID=8592352
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3947462A Expired GB919632A (en) | 1958-02-20 | 1959-02-17 | Improvements in pneumatic driers |
| GB543059A Expired GB919631A (en) | 1958-02-20 | 1959-02-17 | Improvements in pneumatic drying methods and apparatus |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB543059A Expired GB919631A (en) | 1958-02-20 | 1959-02-17 | Improvements in pneumatic drying methods and apparatus |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE575707A (en) |
| ES (1) | ES247321A1 (en) |
| GB (2) | GB919632A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620551B (en) * | 2012-04-28 | 2014-04-09 | 河南工业大学 | Air flow dryer with feeding and automatic scattering functions |
| CN103720725A (en) * | 2013-12-31 | 2014-04-16 | 昆明特康科技有限公司 | Circulating fluidized bed equipment and pine pollen production method thereof |
| CN209639466U (en) * | 2018-12-31 | 2019-11-15 | 湖北加德科技股份有限公司 | Double air-flow whirlwind type expansion driers |
-
1959
- 1959-02-14 BE BE575707A patent/BE575707A/en unknown
- 1959-02-17 GB GB3947462A patent/GB919632A/en not_active Expired
- 1959-02-17 GB GB543059A patent/GB919631A/en not_active Expired
- 1959-02-18 ES ES0247321A patent/ES247321A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB919631A (en) | 1963-02-27 |
| ES247321A1 (en) | 1959-10-16 |
| BE575707A (en) | 1959-05-29 |
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