Production of semi-finished products
All semi-finished products are produced in different workshops and fully integrated in mainline of the mill.
The cellulose is manufactured in bimetallic digesters. After the cleaning system the cellulose is transferred to paper machines. The cooking liquors are processed into the final product –technical lignosulfonates (liquid and powder). The automatic control system provides the total control of cellulose production and of polluting emissions into atmosphere.
The ground wood is made on russian DZ -04 chain grinders. In 2001 the cleaners of VALMET, CELLECO, NOSS, AHLSTR0M companies with process automation system were installed. Now the system provides high quality of ground wood. The thermo-mechanical pulp is produced at two TMP-plants, erected under the project of company ANDRITZ (Austria) with using its technology and equipment.
The first plant was put into operation in 1999; the second plant with implementation of RTS- method was started up in 2003. The production rate of each plant amounts 135 thousand tons a year. The bleaching of semi-products is made with sodium bisulfite, that means without chlorine and chlorinated substances.