The discussions on pulp drying systems have lately become more and more intense. In the first place, these are concerned with systems which utilize available waste heat, e.g. low-temperature driers, or with systems which use superheated steam for drying purposes. This is the basis on which BMA devises its trend-setting concepts. The current state of development in low-temperature pulp drying is chiefly characterized by heat exchangers arranged closely above the belt conveyors and the short air routes provided by built-in fans. As regards steam drying, an alternative to the fluidized-bed drying technology is developed which incorporates a drum dryer (Niro A/S licence). Various drying systems and combinations thereof are evaluated.
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