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Description

The all-glass construction and design of the spray assembly minimises any possible contamination and will produce a free-flowing,

near-spherical powder. In the spray-drying process the product is introduced in liquid form and emerges as a dry, fine powder.

Thermal shock is minimal.

The process may be used for powder coating (agglomeration) where the fine product is adhered together into small balls with the aid of filmogen.

Other processes where spray drying is found to be successful are micro-encapsulation  and  englobulation.

A fine jet of the liquid to be dried is brought into contact with a hot air stream. This evaporates the spray moisture and carries the solid

particles into the cyclone separator. The solids are collected in a sample jar at the base of the cyclone and the exhaust vapour is directed to the outside atmosphere, or fume/dust extractor.

Technical details

The unit is supplied complete; ready for operation. Materials of construction:

Cabinet:                                     All steel, coated with hard chemical- resistant finish

Dryer components:                   Glass with gasket-free ground glass

Control panel includes:

?   Digital controller and display of inlet temperature

?   Digital display of outlet temperature

?   Rotary knob to control pump speed

?   On/off switches for the blower, heater, and mains supply

?   Pilot lights positioned in the panel indicate specific operations to be illustrated

Product flow rate:                     Variable up to 1,500 ml/hr

Air inlet temp range:                 Up to 200°C

Heater capacity:                        3kW

Jet size:                                     0.5mm