FIELD: food industry.
SUBSTANCE: invention relates to food industry. According to the proposed method one performs rectification division of a solution of water in low boiling liquid hydrophilous agent into a vapour fraction enriched with the agent and a liquid fraction enriched with water; the liquid fraction is discharged from the installation. The vapour fraction is heated and passed through a layer of the frozen product being dried. One condenses the vapour fraction; then the condensed solution of water in the low boiling liquid hydrophilous agent is delivered for rectification division. One also proposes an installation for vacuum sublimation drying containing a vacuum pump, one or several drying chambers wherein the frozen product being dried is placed, one or several calorifiers, a rectification column with a boiler and dephlegmator and a condenser forming a common hermetically sealed system.
EFFECT: group of inventions ensures reduced drying time.
8 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR VACUUM SUBLIMATION DRYING WITH CONVECTIVE INPUT OF THERMAL ENERGY AND VACUUM SUBLIMATION DRYING INSTALLATION | 2010 |
|
RU2420215C1 |
| VACUUM SUBLIMATION DRYING UNIT | 2008 |
|
RU2375654C1 |
| METHOD OF VACUUM DRYING AND DEVICE FOR ITS IMPLEMENTATION | 2006 |
|
RU2335930C2 |
| DEVICE FOR LIQUID CONCENTRATION AND SUBLIMATION DRYING | 2003 |
|
RU2276313C2 |
| VACUUM DRYING APPARATUS AND VACUUM DRYING METHOD | 2005 |
|
RU2299385C1 |
| VACUUM SUBLIMATION DRYING SYSTEM | 2018 |
|
RU2705692C1 |
| VACUUM SUBLIMATION DRYING METHOD | 2005 |
|
RU2285876C1 |
| METHOD FOR REMOVING OF LIQUID OR FROZEN AGENT FROM PRODUCT | 2004 |
|
RU2284737C2 |
| VACUUM DRYING CUPBOARD | 2006 |
|
RU2326312C1 |
| VACUUM SUBLIMATION DRYING METHOD AND DEVICE FOR ITS IMPLEMENTATION | 2023 |
|
RU2814743C1 |
