GB815008A - Improved process and apparatus for the concentration of solutions - Google Patents
Improved process and apparatus for the concentration of solutionsInfo
- Publication number
- GB815008A GB815008A GB32303/56A GB3230356A GB815008A GB 815008 A GB815008 A GB 815008A GB 32303/56 A GB32303/56 A GB 32303/56A GB 3230356 A GB3230356 A GB 3230356A GB 815008 A GB815008 A GB 815008A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- crystals
- fixed
- vessel
- arms
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0004—Crystallisation cooling by heat exchange
- B01D9/0013—Crystallisation cooling by heat exchange by indirect heat exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/004—Fractional crystallisation; Fractionating or rectifying columns
- B01D9/0045—Washing of crystals, e.g. in wash columns
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/22—Treatment of water, waste water, or sewage by freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C3/00—Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow
Abstract
In a method of concentrating solution by freezing the solvent the solution is circulated in a freezing space about an axis and an additional helical movement is imparted to the solution in each of a plurality of coaxial annular zones superimposed along the axis. The walls 3, 5 of a <PICT:0815008/III/1> <PICT:0815008/III/2> cylindrical vessel defining the freezing space are enclosed in a jacket 8 through which brine or a volatile refrigerant flows. A base 16 rotating on shaft 26 carries vertical arms 19 to which are fixed scrapers 18 and between which are supported stirring members 20, shaped so as to give the solution a helical movement, and 21, directing the solvent crystals back towards the vessel walls. The crystals move to the top of the tank and are removed by discharge from a ring 23 carried by the upper ends of arms 19 to a screwed portion 25 fixed to the cylinder cover 7, from where the crystals pass to a percolating device. Helical blades may be fixed to the vessel wall to assist the upward movement of the crystals. Weak solution is introduced at 29 and 30 and concentrated solution drawn off at 13. The vessel may rotate while the arms 19 are fixed or two coaxial sets of rotating arms may be provided with a fixed support for the members 20, 21. Solution enters the percolating device at 41 or by apertures 42 in a rotating hollow shaft 43. The crystals are raised by screw conveyer 37 to a mixing zone 38 and from there to a percolating zone 44 in which the crystals are largely separated from the solution to cells formed by vertical plates 46 fixed to the wall of cylinder 31. The crystals then pass to an emptying device 49 and are discharged through pipe 50. The percolator may be integrally combined with the freezing vessel by e.g. being located above the freezing space and in direct communication with it. The cylindrical vessel may be in a horizontal position.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH18933A DE1000013B (en) | 1955-10-27 | 1955-10-27 | Method and device for the continuous concentration of solutions by freezing a solvent and separating the liquid from the solidified portion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB815008A true GB815008A (en) | 1959-06-17 |
Family
ID=7428336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32303/56A Expired GB815008A (en) | 1955-10-27 | 1956-10-23 | Improved process and apparatus for the concentration of solutions |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH347819A (en) |
| DE (1) | DE1000013B (en) |
| FR (1) | FR1163912A (en) |
| GB (1) | GB815008A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2162201A1 (en) * | 2007-06-20 | 2010-03-17 | Nagarjuna Energy Private Limited | Process and apparatus for concentrating dilute solution |
| CN110963542A (en) * | 2019-12-20 | 2020-04-07 | 陈俊 | Low-temperature concentration device for treating garbage leachate through sectional dehydration |
| CN113058284A (en) * | 2021-03-19 | 2021-07-02 | 高安市环瓷达釉料有限公司 | A granulation crystallization device for sodium metasilicate preparation in-process is used |
| CN116239177A (en) * | 2023-04-24 | 2023-06-09 | 光大环保技术装备（常州）有限公司 | Percolate concentration detection and recovery system and working method thereof |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1215604B (en) * | 1955-06-28 | 1966-04-28 | Carrier Corp | Method and device for the production of drinking water from a salt solution |
| DE1215605B (en) * | 1958-11-15 | 1966-04-28 | Carrier Corp | Method and device for obtaining drinking water from a salt solution |
| CN107050915A (en) * | 2017-06-01 | 2017-08-18 | 湖北恒贸茶油有限公司 | Tea oil crystallizing tank with crystallization leading-out zone |
| CN114288703B (en) * | 2022-01-25 | 2023-08-25 | 南京吉才汇科技有限公司 | Crystallization separation equipment for boric acid production |
-
1955
- 1955-10-27 DE DESCH18933A patent/DE1000013B/en active Pending
-
1956
- 1956-10-18 CH CH347819D patent/CH347819A/en unknown
- 1956-10-23 GB GB32303/56A patent/GB815008A/en not_active Expired
- 1956-10-26 FR FR1163912D patent/FR1163912A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2162201A1 (en) * | 2007-06-20 | 2010-03-17 | Nagarjuna Energy Private Limited | Process and apparatus for concentrating dilute solution |
| EP2162201A4 (en) * | 2007-06-20 | 2011-05-11 | Nagarjuna Energy Private Ltd | Process and apparatus for concentrating dilute solution |
| CN101668574B (en) * | 2007-06-20 | 2013-05-08 | 纳格祖那能量私人有限公司 | Process and apparatus for concentrating dilute solution |
| AU2008264872B2 (en) * | 2007-06-20 | 2013-08-22 | Nagarjuna Energy Private Limited | Process and apparatus for concentrating dilute solution |
| CN110963542A (en) * | 2019-12-20 | 2020-04-07 | 陈俊 | Low-temperature concentration device for treating garbage leachate through sectional dehydration |
| CN113058284A (en) * | 2021-03-19 | 2021-07-02 | 高安市环瓷达釉料有限公司 | A granulation crystallization device for sodium metasilicate preparation in-process is used |
| CN116239177A (en) * | 2023-04-24 | 2023-06-09 | 光大环保技术装备（常州）有限公司 | Percolate concentration detection and recovery system and working method thereof |
| CN116239177B (en) * | 2023-04-24 | 2023-07-11 | 光大环保技术装备（常州）有限公司 | Percolate concentration detection and recovery system and working method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CH347819A (en) | 1960-07-31 |
| DE1000013B (en) | 1957-01-03 |
| FR1163912A (en) | 1958-10-02 |
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