Optimised for a factory’s energy balance.
Fluidised-bed steam dryers (WVT) from BMA dry the pressed pulp produced in beet sugar factories to obtain a dry substance content of about 90 %. Use of a WVT can also make ecological sense with other types of biomass.
The elements needed for the technological process in a WVT are neatly arranged in the compactly designed dryer. A fluidised bed of pulp forms around the heat exchanger (5), which is positioned centrally in the circular space and supplies the heat required for evaporation. A fan (6) below the heat exchanger generates the necessary circulation flow of the steam, which then flows upwards through a distribution plate into the fluidised bed. This is divided into several connected cells (2). The pressed pulp is fed into the first cells by the product feed system (1). It then passes through the remaining cells right up to the penultimate cell in a fluidised state. The last cell serves to receive the dried pressed pulp and dust from the rotary separator (4). From there, they are discharged directly into the expansion cyclone via a discharge screw and lock.