GB1242380A - Improvements in freeze-drying - Google Patents
Improvements in freeze-dryingInfo
- Publication number
- GB1242380A GB1242380A GB3513270A GB3513270A GB1242380A GB 1242380 A GB1242380 A GB 1242380A GB 3513270 A GB3513270 A GB 3513270A GB 3513270 A GB3513270 A GB 3513270A GB 1242380 A GB1242380 A GB 1242380A
- Authority
- GB
- United Kingdom
- Prior art keywords
- receptacles
- chamber
- freeze
- sides
- july
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
- F26B5/06—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum the process involving freezing
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
1,242,380. Freeze-drying. LEYBOLDHERAEUS - VERWALTUNG G.m.b.H. 20 July, 1970 [23 July, 1969], No. 35132/70. Heading F4G. Freeze-drying apparatus comprises a vacuum chamber 1 in which receptacles 33 for holding the material to be freeze-dried are slidably mounted on rails 31 and are located between heat radiators 2. The material is loaded into the receptacles 33 outside the chamber 1 which are then slid into the chamber 1 which is then sealed and evacuated. Equipment (not shown) then freezes the material in the receptacles 33 and a heating medium is then supplied to the radiators 2 through an inlet 21. Vapour from the material passes through the openings in the receptacle sides (35), Fig. 4 (not shown), and into condensers (not shown) in the chamber 1. When freeze-dried the material may be allowed to absorb some moisture either in the chamber 1 or in a separate air lock adjoining the chamber 1 separated therefrom by a valve. After the vapour charging is completed the receptacles 33 are pushed out of the air lock and, while still suspended vertically, are emptied by swing- ing both of each receptacles sides about a hinge (38), Fig. 6 (not shown). Spikes (39). Fig. 7 (not shown) may be provided on interior of the receptacles sides to prevent fibrous material e.g. tobacco, from packing down inside the receptacle 33, or if fine particulate material is used, solid side panels provided with louvred venting openings may be used.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691937319 DE1937319A1 (en) | 1969-07-23 | 1969-07-23 | Method and device for freeze drying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1242380A true GB1242380A (en) | 1971-08-11 |
Family
ID=5740586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3513270A Expired GB1242380A (en) | 1969-07-23 | 1970-07-20 | Improvements in freeze-drying |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1937319A1 (en) |
| FR (1) | FR2055328A5 (en) |
| GB (1) | GB1242380A (en) |
| NL (1) | NL7007655A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440202A (en) * | 2018-10-18 | 2019-03-08 | 青岛即发集团股份有限公司 | A kind of wet spinning vacuum freeze-drying method and drying equipment |
| CN109576803A (en) * | 2018-10-18 | 2019-04-05 | 青岛即发集团股份有限公司 | A kind of production method of chitin fiber |
| LV15775A (en) * | 2022-03-01 | 2023-09-20 | Rīgas Tehniskā Universitāte | Chamber of lysophilization apparatus equipped with physical screens |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE789624A (en) * | 1971-11-12 | 1973-02-01 | Fmc Corp | PROCESS AND DEVICE FOR CONDITIONING TOBACCO BEFORE ITS FROZEN DRYING |
| DE19748472A1 (en) * | 1997-11-03 | 1999-05-06 | Suwelack Nachf Dr Otto | Device for freeze-drying collagen from animal raw materials and other biomatrices which have been obtained from polysaccharides and method for producing these products |
-
1969
- 1969-07-23 DE DE19691937319 patent/DE1937319A1/en active Pending
-
1970
- 1970-05-27 NL NL7007655A patent/NL7007655A/xx unknown
- 1970-07-16 FR FR7026589A patent/FR2055328A5/fr not_active Expired
- 1970-07-20 GB GB3513270A patent/GB1242380A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440202A (en) * | 2018-10-18 | 2019-03-08 | 青岛即发集团股份有限公司 | A kind of wet spinning vacuum freeze-drying method and drying equipment |
| CN109576803A (en) * | 2018-10-18 | 2019-04-05 | 青岛即发集团股份有限公司 | A kind of production method of chitin fiber |
| CN109440202B (en) * | 2018-10-18 | 2023-09-08 | 青岛即发集团股份有限公司 | Wet spinning vacuum freeze-drying method and drying equipment |
| CN109576803B (en) * | 2018-10-18 | 2023-09-12 | 青岛即发集团股份有限公司 | Production method of chitosan fiber |
| LV15775A (en) * | 2022-03-01 | 2023-09-20 | Rīgas Tehniskā Universitāte | Chamber of lysophilization apparatus equipped with physical screens |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1937319A1 (en) | 1971-02-11 |
| FR2055328A5 (en) | 1971-05-07 |
| NL7007655A (en) | 1971-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4045639A (en) | Continuous microwave and vacuum dryer | |
| US4626414A (en) | Apparatus for the packaging of radioactive wastes in storage containers | |
| ES359163A1 (en) | Process for conditioning freshly roasted coffee | |
| GB1242380A (en) | Improvements in freeze-drying | |
| GB1118352A (en) | Apparatus for freeze-drying | |
| GB1370683A (en) | Apparatus for freeze-drying material and method for freeze-drying | |
| SE8303067D0 (en) | PROCEDURE AND DEVICE FOR EMPTYING A VACUUM USING VACUUM | |
| US3710803A (en) | Method for turgor conditioning tobacco | |
| US3365806A (en) | Bulk freeze-drying method and apparatus | |
| GB849613A (en) | An improved machine for drying copra | |
| GB1453792A (en) | Microwave oven | |
| US4497120A (en) | Procedure and apparatus for charging and emptying the drying trays in a drying box | |
| GB1207106A (en) | Classification of sinter | |
| JPH02256999A (en) | Perlite charging method in perlite vacuum heat insulated double shell storage tank | |
| ES425783A1 (en) | Extraction apparatus | |
| US1390341A (en) | Process for storing and curing ensilage | |
| CN207379165U (en) | A kind of LiPF6 nitrogen drying equipment | |
| GB1031874A (en) | Apparatus for freeze-drying | |
| CN1069638A (en) | Expanding apparatus for agricultural product such as tobacco material | |
| GB1220197A (en) | Method and apparatus for freeze-drying | |
| GB1400255A (en) | Drying | |
| CN206399172U (en) | A kind of electric drying oven with forced convection | |
| GB1270307A (en) | Particle drying method | |
| US3264745A (en) | Process and apparatus for freezing and freeze-drying liquid substances, and apparatus for carrying out said process | |
| US3470627A (en) | Lyophilizing method and equipment |