The purpose of this work is to improve the rotational and blade type mechanical paper pulp consistometers for enhancement of their metering characteristics and reducing the influence of pulp flow velocity, friction torques in shaft sealing and bearings on the measured pulp consistency. These goals are achieved by algorithmic control of the sensor motion velocity and algorithmic processing of measured data. The designs of upgraded rotational and blade consistometers are presented.
[1] Steffe, J.F. Rheological Methods in Food Process Engineering. 2 nd Edition. Freeman Press, East Lansing, MI, USA. 1996, 418p.
[2] Waller M.H. A Tutorial of the Measurement of Paper Stock Consistency. ISA Transactions, 1993, 32, pp.277-282.
[3] Instrument engineers handbook: Process Measurements and Analysis, 4th ed., vol. 1. Bela G. Liptak. ISA, The Instrumentation, Systems, and Automation Society, 2003.
[4] Blanco A., Negro C., Fuente E., Tijero J. Rotor selection for a Searle-Type Device to Study the Rheology of Paper Pulp Suspensions. Chemical Engineering and Processing, 2007, 46 (1) pp.37-44.
[5] Anderson N., Cullander J., Lundberg P., Adrian P. Phase Controller for Dual Motor Torque Detecting Device. US Patent No: US 8171776 B2. Date of Patent: May 8, 2012.