Device for measuring filtering properties of paper pulp

Details Device for measuring filtering properties of paper pulp Device for measuring filtering properties of paper pulp

G - Physics

01

N

73/98

G01N 1/10 (2006.01) D21F 1/00 (2006.01)

Patent

CA 1078216

DEVICE FOR MEASURING FILTERING PROPERTIES OF PAPER PULP ABSTRACT OF THE DISCLOSURE Filtering property of paper pulp is measured by the height of the filtrate column by periodically immersing a vessel having a gauge bottom into the pulp. The device for measuring filtering properties of paper pulp with the aid of the vessel having the gauze bottom, has a pneumatic system that immerses the vessel with the gauze bottom into or removes it from the pulp at a certain time interval, and also a follow up system for recording the result of each measurement of the filtrate level in the vessel by the mag- nitude of the hydrostatic pressure as measured by a bubbler. The device for measuring the filtering property of paper pulp is characterized in that the vessel with the gauze bottom consists of two communicating compartments having unequal cross section areas, the bubbler being installed in the smaller compartment. The device ensures high accura- cy of measurment of the filtering property of paper pulp in the course of time, that makes it possible to utilize the proposed device in a system for automatic control of the pulp grinding process.

267929

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