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LTDG-10 Vacuum Freeze Dryer
Theory of freeze-drying
Freeze-dry (brief named Freeze-dry) is a stable process of material dried which will put the material contained with water to freeze to solid first, then make among them of the water sublimate from solid to air condition, removing water to preserve materials
Products at solution stage are frozen through sublimation and desorption, then the solvent reduce to a certain extent, thereby preventing the formation of micro-organisms or chemical reaction between the solute and solvent that products can be preserved for a long time and maintained its nature.
Vacuum freeze-drying method is a liquid → solid → gaseous process. In freeze-drying process, "liquid bridge" between the solution particles has been frozen into "solid bridge". The relative position of particles has been fixed and does not exist surface tension on gas-liquid interface between the two particles. With the continuous distillation of solvent, "solid bridge" continuously decrease, but the the relative position between two particles will not longer change until the "solid bridge" completely disappear.
Finished Product: Dried Coconut; Dried Durian; Dried Kiwi
| LTDG-10 Vacuum Freeze Dryer | |||
| Product structure | Technical parameters | Remarks | |
| Standard:GMP | |||
| ※ Public distribution | |||
| Power (three-phase and five-wire system) | 380V/50HZ | ||
| Power consumption | 46kw | ||
| Cooling water qty | ≥15m3/h(T≤25℃,P=0.2-0.3Mpa) | ||
| Whole volume
Appearance size | Dry chamber and Condenser: D=φ1300mm L=2300mm
L=5000mm W=2000mm H=2000mm | (According to design standard) | |
| Structure | Split | ||
| Total weight | 3800kg | (According to design standard) | |
| ※ Drying body | |||
| Performance parameters | |||
| Design and manufacturing standards | Vacuum vessel design standards | ||
| Chamber design pressure | -0.1Mpa | ||
| Chamber design temperature | 90℃ | ||
| Chamber Vacuum leak rate | 25×10-3 Pa.m3/sec | ||
| main components | |||
| Chamber material | SUS304/δ5mm | ||
| Geometry Box | Horizontal barrel type | ||
| Lock method | Rotate and locking type by handle | ||
| Direction of opening door | open right (the user can choose) | ||
| Opening angle | >110° | ||
| Door materials | SUS304 | ||
| Box external decoration | SUS304 SUS304 | ||
| The roughness of chamber and door | Ra≤0.6μm | ||
| Insulation material | Rubber insulation board/δ70mm | ||
| Door observation window | Φ200mm observation window at central portal | One piece | |
