THE EFFECT OF TMP REFINING USING AN ADJUSTABLE-SPEED DRIVE ON ENERGY-CONSUMPTION AND PULP QUALITY

An experimental investigation was conducted to study the effect of TMP refining using adjustable-speed drive (ASD) an energy consumption and pulp quality. The project is based on the studies of disc refiner mod els at high- and low- consistency refining. Our primary objective is t o examine the potential energy efficiency improvement of a TMP system by evaluating the effect of TMP refining using ASD in pilot scale at t he Center for High Yield Pulping Science. The pilot experimental resul ts show that certain benefits of TMP refining using ASD can be obtaine d. Preliminary results demonstrate that increasing the first stage of refining speed reduces electrical energy at similar pulp quality.