ROTARY VACUUM DRYER

SHAKTI MAKE ROTARY VACUUM DRYER - SRVD

 

Rotary double cone vacuum dryers are suitable for drying & mixing powder (raw materials), pharmaceutical materials, crystalline products, insecticides, pesticides, food products & also for heat sensitive products.

 

The equipment can also be used as rotary evaporator. SEW is a certified company for manufacturer, supplier and exporter of rotary double cone vacuum dryers according to ISI guidelines and user’s requirements since 2004 from Ahmedabad

 

WORKING PRINICPLE

 

Raw material is charged in batches & is subjected to indirect heating while at the same time undergoing rotary motion of the cone assembly. The conical shape of the dryer ensures efficient circulation of hot liquid heating media. Drying takes place when heat flows from outer cone through a jacket, and vacuum is applied in the inner cone. The drying operation is based on the principle that water or other volatile product moves from a zone of low pressure. This is accomplished by warming the product to be dried to raise the vapour pressure of the absorbed or free liquid by vacuum or by sweeping it with Air or Nitrogen current. Thus the essential conditions for effective drying are achieved by uniform heat transfer throughout the batch and rapid removal of the vapour. The vacuum is applied gradually with PLC control by throttling.

 

SRVD is unique in removing complete water, or other solvent from wet powders coming from a filtration unit or a centrifuge. It can be used as an effective dryer, fast mixer & blender or homogenizer. It can also be used as a granulator.

 

The drying time is substantially reduced because of high-speed choppers, which help the evaporation of the solvent or moistures. Chopper speed can be controlled by a frequency drive. Dryer are manufactured as per “US-FDA” Standards & Regulations.

 

FEATURES

 

Low temperature drying under vacuum

Higher Thermal Efficiency

Specially designed micro air-filter can be provided on receiver while breaking vacuum for safety operation

Nitrogen purging system is available optionally for mechanical seal as well as for cleaning filter

Specially designed S.S. Rotary union is provided for hot water or steam at inlet & outlet

Direct drive with hollow shaft gear to suit cGMP operation & to avoid greasing of the gear.

The gear box with only one time of oil fill for lifetime

Lowest energy consumption compared to any other batch type dryer due to higher differential temperatures

Available in STD/GMP/cGMP/ Lab Models and kilo lab models

 

RCVD SELECTION IN CASE OF

 

Suitable for drying of materials which cannot resist high temperature.

Material which are easily oxidized

Specialty chemicals

Volatile Materials which should be retrieved

Materials which are strong irritants and poisonous in nature

Solvents which need to be recovered

 

 

 

 

 

 

 

 

ADVANTAGES

 

Food Industry: Gulab Jamun Powder, Cereal Mix, Instant Coffee Powder, Food Additives, Dairy Feed Mix, Vending Premix, Hot Beverage Powder, Flavoured tea mix, Muesli, Fortified Rice, Yeast Mix, Cake Premix, Electrolyte powder and many more

 

Animal Feed Industry:Feed Premix, Poultry Feed, Mineral Feed, Feed Supplements, Aqua feed mix, Feed Additives, Cattle Feed Mix, Vitamin Premix and Trace Elements

 

Chemical Industry: Detergent Powder mixing, Fragrance stick powder, Fertilizer mixing, Pesticide Powder mixing, Foundry powder, Glass powder, Iron Ore powder, Micronutrient mixing, Soap powder mixing and many more.

 

Refectory/ Building materials Industry: Distemper paint, Gypsum Plaster mix, Fly Ash mix, Abrasive powder, Cement Plaster mix, Ceramic material mix, Mortar mix and many more

 

The SRVD is the perfect solution for drying temperature sensitive powder products. SRVD is a result of a collaboration between our Process Powder and Process Vacuum teams. With decades of experience in catering to the pharma and chemical sector in India, our Vacuum engineers have contributed towards the design of this product. The jacketed (Double-walled) Cone chamber with desired drying medium like hot-water, steam or Oil is in constant rotary motion to expose maximum drying surface to powder product. Coupled with SEW Vacuum pumps, we are able to achieve a homogeneous and dry powder product in relatively short cycle times.