Project Description
The ProCell® series combines the innovative spouted bed concept with the flexibility and multi-zone concept of the GF series: rectangular multi-chamber production systems for combining all continuous spouted bed processes, while protecting temperature-sensitive materials.
Whether for spray granulation, liquid encapsulation or particle coating, plug flow through the process chambers allows processes to be combined, as well as subsequent drying and cooling.
The basis of spouted bed technology is the fluidisation of particles by the upward-flowing process air. Unlike fluid bed processes, the air does not enter the process chamber through the sieve plate, but through longitudinal slots.
The cross-section of the process chamber widens considerably above the longitudinal slots. Consequently, the superficial velocity in the process chamber decreases sharply. The result is a directed movement of particles in the process chamber. The nozzles in the process chamber can spray downwards (top spray) or upwards (bottom spray). Thanks to the central arrangement of the nozzles, atomisation takes place at the point of greatest energy input. Compared with a fluid bed, the same spray rates can be achieved with approximately half the bed volume. This halves the residence time.
Advantages of ProCell:
- fine products can be fluidised
- fluidisation of coarse and irregularly shaped products
- gentle drying of temperature-sensitive materials
- process air volume adjustable according to the energy requirements of the process
- high process stability thanks to resistance to stickiness and lump formation
- short processing times at high spray rates
