Industrial Double Cone Rotary Vacuum Dryer Machine

Description of Double Cone Rotary Vacuum Dryer:

This industrial dryer machine is a double-cone rotary tank. In the vacuum state, steam or hot water is passed into the jacket for heating. The heat contacts the wet material through the inner wall of the tank, and the wet material evaporates after absorbing heat. The water vapor is sucked away through the vacuum exhaust pipe by the vacuum pump. Since the inside of the tank is in a vacuum state, and the rotation of the tank makes the material continuously turn up and down, so the drying speed of the material is accelerated, the drying efficiency is improved, and the purpose of uniform drying is achieved. The double cone vacuum dryer system is mainly composed of a double-cone rotary vacuum dryer, a condenser, a dust collector, a vacuum extraction system, a heating system, a cooling system, and an electric control system.

Applications:

This drying machine is suitable for concentration, mixing and drying of powder, granular and fibrous materials in such industries as chemical industry, medicine, food, etc., and materials that require low temperature drying(such as biochemical products), and is more suitable for drying of materials that are easy to oxidize, volatize, heat sensitive materials, irritant and poisonous materials, and materials in which breaking of crystals is not allowed.

Principle:

• After the heat source(such as hot water, low pressure steam or heat transfer oil) is connected to the closed jacket, the heat is transferred from the inner shell to the materials to be dried.

• Driven by the power, the tank makes slow rotation and the materials in the tank are continuously mixed so as to realize the purpose of drying.

• When the materials are under vacuum, the steam pressure reduces to make the moisture(solvent) on material surtaces reach the saturation status and evaporate, and discharged and recovered timely from the vacuum pump. The moisture(solvent) inside the materials is penetrated, evaporated and discharged towards the surfaces. The three processes are carried out continuously, so that the materials are dried within a very short time.

Features:

• During oil heating, automatic constant temperature control is adopted to dry biochemical products and mineral raw materials.

Temperatures vary within the range of 20-160℃.

• The heat efficiency is 2 times higher than that of common ovens.

• Indirect heating will cause no pollution to the materials, conforming to GMP requirements. The equipment is simple to repair and operate and easy to clean.

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