Stainless steel double cone rotary vacuum dryer

The stainless steel double cone rotary vacuum dryer is an ideal intermittent (batch) equipment that utilizes the principles of vacuum low-temperature and rotary mixing to efficiently, uniformly, and cleanly dry and mix high-value, heat sensitive, and easily oxidizable powder and slurry materials. It plays an irreplaceable role in fields such as pharmaceuticals, food, and fine chemicals.

Structure of stainless steel double cone rotary vacuum dryer:

Stainless steel:

Material: Usually made of 304 or 316L stainless steel.

Purpose: To ensure that the equipment is rust free, pollution-free, easy to clean, and meets the GMP (Good Manufacturing Practice) requirements of industries such as pharmaceuticals and food.

Double cone:

Structure: The main body is a symmetrical double conical tank.

Purpose: This structure enables optimal flow and mixing of materials during the rotation of the tank, without dead corners. The conical structure also facilitates the unloading of materials.

'Rotation':

Motion: The entire double cone tank is supported by shafts at both ends and driven by a transmission system to rotate uniformly 360 degrees in the horizontal direction.

Purpose: To continuously flip and mix the materials inside the tank, exposing new surfaces, achieving uniform drying, and preventing clumping.

Vacuum drying:

Environment: The entire drying process is carried out in a sealed vacuum environment.

Purpose:

Lowering boiling point: Under vacuum, the boiling point of water is significantly reduced, and the material can be quickly dried at lower temperatures (such as 40-60 ℃), making it very suitable for thermosensitive materials.

Remove moisture: Create a pressure difference to drive the diffusion and evaporation of moisture (or solvent) inside the material.

Preventing oxidation: The anaerobic environment prevents the material from being oxidized during the drying process, maintaining the activity, color, and quality of the material.

Main uses and advantages:

Its core purpose is to dry powdery, granular, crystalline, and slurry materials that are temperature sensitive, prone to oxidation, or require high cleanliness. At the same time, it is also an efficient mixer.

Main application areas:

Pharmaceutical industry (largest user)

Raw materials: antibiotics, vitamins, plant extracts, etc.

Intermediate: Wet product dried after chemical synthesis.

Crystalline material: a product that needs to maintain good crystal shape after drying.

food industry

调味料：氨基酸、酵母粉等。

Natural extracts: fruit and vegetable powder, plant essence, etc.

High value-added food: requires ingredients that maintain flavor and nutrition.

Chemistry and Fine Chemicals

Catalysts, dyes, pigments.

Resin and synthetic fragrances.

Chemical products that require solvent recycling.

New materials and others

Electronic ceramic powders, battery materials, etc.

Outstanding advantages:

High drying quality: Low temperature, anaerobic environment, especially suitable for drying heat sensitive and easily oxidizable materials, which can preserve the activity, color, and aroma of the materials.

Uniform drying: Rotary motion ensures the uniformity of material heating and drying.

Efficient and energy-saving: High heat transfer efficiency and high thermal energy utilization in a vacuum environment.

Clean and safe: Made of stainless steel material, with a closed system, no pollution or leakage, in compliance with GMP standards.

One machine for multiple uses: It has mixing function while drying, and the dried materials can be mixed without transfer, reducing process steps and pollution risks.

Solvent Recyclable: If organic solvents evaporate during the drying process, they can be recovered through a condensing device, which is both environmentally friendly and cost-effective.

III Application of Double Cone Rotary Vacuum Drying Machine

Suitable for the concentration, mixing, drying, and low-temperature drying of powdered, granular, and fibrous materials in industries such as high nickel ternary materials, lithium iron phosphate and other battery materials, chemical, pharmaceutical, and food industries (such as biochemical products). It is also more suitable for drying materials that are prone to oxidation, volatilization, heat sensitivity, strong irritation, toxicity, and materials that do not allow crystal destruction.

4Stainless steel double cone rotary vacuum dryerTechnical Specifications