Andritz has received the order to supply a new pre-treatment stage for Bohui Paper’s BCTMP line 1 in Shandong province, China. The pre-treatment stage for the board production line has a capacity of approximately 600 t/d and comprises an Andritz Impressafiner MSD, an Andritz impregnator and an Andritz chip bin discharger. Start-up is scheduled for the first quarter of 2014.
A pre-treatment stage with an Andritz Impressafiner MSD, a key equipment in Andritz mechanical pulping systems, is essential for state-of-the-art TMP processes. The benefits of a pre-treatment with an Andritz Impressafiner MSD includes maximum liquor uptake while squeezing out distracting extractives and heavy metals. Moreover, the chip treatment in the Andriz pre-treatment stage balances the chip bulk density as well as the chip moisture profile, consequently preparing perfect conditions for the down-streamed refining process – a determining process step in terms of optimum pulp properties and energy savings.
