Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1996-03-20
1997-05-06
Hruskoci, Peter A.
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
162 61, 162198, 210745, C02F 1114
Patent
active
056267665
ABSTRACT:
A process and apparatus for controlling and/or regulating a solids-liquid separation process, such as in a dewatering or drying device includes at least two photodetectors, each associated with a light source, a detector to detect light of the associated light source reflected from the surface of the solids-liquid mass, a controller generating an output signal as a function of the detected light and converting and processing the output signals of the photodetectors into correcting variables for controlling and/or regulating at least one process parameter of the separation process. At least one of the photodetectors is associated with at least one second photodetector for detecting light reflected into the photodetector at an angle, preferably an angle of 30.degree. to the main direction of reflection. The output signals of the photodetectors are advantageously processed into correcting variables for the step-wise adjustment of the at least one process parameter to optimize the separation process.
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Cadek Walter
Kappel Johannes
Neuhold Rudolf
Andritz-Patentverwaltungs-Gesellschaft m.b.H.
Hruskoci Peter A.
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