Abstract: This invention relates to the measurement and control of consistency in an aqueous flow stream, as it leaves a stage (i.e. Bleaching Stage) of the papermaking process. More particularly, the present invention relates to the measurement used for control of wood fiber and suspended solids in a papermaking pulp stock flow stream.

Abstract: An extrusion die plate for a plastic pelletizing machine having a removable central insert having the plurality of extrusion orifices incorporated therein with the main body of the die plate including an opening receiving the insert with the insert being capable of quick and easy removable for cleaning of plastic material and for replacement of the insert with other inserts having a different number of extrusion orifices or a different size of extrusion orifices. The insert is screw threadedly connected or otherwise quickly detachably connected in an opening in the main body of the die plate to reduce the down time for maintenance and for product changes.

Abstract: A centrifugal pellet dryer including an exhaust fan mounted on the upper end of the dryer in direct communication with the interior of the dryer for removing moisture laden air therefrom. The exhaust fan impeller is connected directly to the upper end of the rotor shaft so that a single motor drives the rotor and exhaust fan. A unique rotor with a larger length to diameter ratio is included in the dryer for increased pellet drying efficiency.