METHOD FOR PRODUCTION OF GROUND-WOOD PULP Russian patent published in 2003 - IPC

FIELD: applicable in the wood-pulp and paper industry in production of ground-wood pulp from pulp wood. SUBSTANCE: the wood raw material is ground by a grind stone, the ground raw material is brought from the zone of grinding, water is supplied to a bath for cleaning the stone with its cooling, and the used cooling water is removed. The ground wood raw material is brought out, and the used cooling water is removed from the bath on one side relative to the stone working surface. The used cooling water is removed by counter-flow to the rotation of the stone, and the removed used water is fed for dilution of the ground raw material. Cleaning and cooling of the grind stone in the bath is preferably accomplished at a simultaneous action of ultrasonic oscillations. EFFECT: enhanced quality of the aimed product due to the enhanced physico-mechanical indices, enhanced service life of the stone due to reduced number of mechanical treatments. 2 cl, 1 dwg