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  Double cone rotary vacuum dryer

  
  

  Double cone rotary vacuum dryer is used to inject thermal energy (such as hot water, low pressure steam or heat transfer oil) into the closed interlayer, and the heat is transferred to the dried material through the inner shell. The material is in a vacuum state, and the vapor pressure drops so that the water (solvent) on the surface of the material reaches the saturation state and evaporates, and is discharged and recycled by the vacuum pump in time.

Description:

Double cone rotary vacuum dryer is used to inject thermal energy (such as hot water, low pressure steam or heat transfer oil) into the closed interlayer, and the heat is transferred to the dried material through the inner shell. The material is in a vacuum state, and the vapor pressure drops so that the water (solvent) on the surface of the material reaches the saturation state and evaporates, and is discharged and recycled by the vacuum pump in time.

Main technical Specifications:

Working 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 surfaces 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.

Main 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.

Main Purpose

The double cone rotary vacuum dryer 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.

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