Two Principle Characteristics of Static Low Temperature Square Vacuum Dryer
Source: | Release date:
2013-11-05 00:00:00
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Abstract:
The boiling point of the material solution under vacuum in the square vacuum dryer is reduced, so that the heat transfer driving force of the evaporator is increased, so the heat transfer area of the evaporator can be saved for a certain heat transfer.Evap…
The boiling point of the material solution under vacuum in the square vacuum dryer is reduced, so that the heat transfer driving force of the evaporator is increased, so the heat transfer area of the evaporator can be saved for a certain heat transfer.
Evaporation of the heat source can be used low pressure steam or waste heat steam.
The heat loss of the evaporator is small.
In the dry before the disinfection can be carried out in the drying process without any impurities are not mixed, in line with GMP requirements.
Belong to the static vacuum dryer, so the dry material body will not be damaged.
working principle
Pure water has the greatest rate of vaporization in the boiling state. Normally, about 100 ℃ when the water began to boil. In the vacuum conditions, due to the system of water vapor partial pressure, much lower than the surface of the water vapor partial pressure, water boiling point below 100 ℃. For example: the surface down to -0.07MPa, the water at 70 ℃ that began boiling. So even in the lower operating temperature, the dryer still has a large drying capacity.
Square vacuum dryer Application: for medicine, chemical, food, electronics, Chinese medicine and other industries of heat-sensitive materials dry.
Features 1, at a lower temperature to get a higher drying rate, the use of heat sufficient.
2, suitable for low temperature drying, heat-sensitive materials, dry, afraid of being oxidized material drying.
3, can be dry solvent containing solvent and need to recover the material.
4, square vacuum dryer is a static vacuum dryer, so the dry material of the body will not be damaged.
5, square vacuum dryer for the intermittent production equipment, can always adjust the process.
6, the top of the arch structure, can effectively avoid the reverse drops of condensate phenomenon.
6, using a four-in-one vacuum structure, to ensure uniformity of dry materials.