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Industrial Freeze Dryer Cost
Generally, materials with relatively simple ingredients have a higher eutectic point, such as vegetables, the freezing temperature is only about -15 ℃, the freezing time is short, the corresponding heating time is also short, the energy consumption is relatively low, and the operating cost is low.
Features
The main ways to reduce the industrial freeze dryers cost:
1. Generally, materials with relatively simple ingredients have a higher eutectic point, such as vegetables, the freezing temperature is only about -15 ℃, the freezing time is short, the corresponding heating time is also short, the energy consumption is relatively low, and the operating cost is low. The composition is complex, and the material containing organic or inorganic components such as salt, sugar, fat, amino acid, solvent, etc. has a lower eutectic point. The lower the freezing temperature, the longer the freezing time, the longer the corresponding heating time, and the higher the operating cost.
2. Some biological products such as fungi, vaccines and other materials are very sensitive to heat, and the heating temperature is not allowed to be too high (-15℃~30℃), and it is difficult to absorb heat, so it requires a long drying time, and the operating cost will be very high . For materials with low heat sensitivity (such as ordinary food), the heating temperature can be very high (75℃ ~ 100℃ the drying time will be greatly shortened, and the operating cost will be low.
3. Under the same weight, the smaller the geometric size, the larger the ice surface area of the thin and loose material, the more conducive to sublimation, and the shorter the drying time. If large pieces of material are cut or broken into smaller pieces, the sublimation drying speed can be greatly improved and the operating cost can be reduced.
4. Reduce the thickness of the product charging, and appropriately increase the drying shelf area under the condition that the charging volume and equipment power consumption remain unchanged, which can improve the heat transfer capacity of the drying shelf, shorten the freezing and heating drying time, and reduce operating costs. But equipment investment will increase slightly. The choice of process route also affects the industrial freeze dryers cost.
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