Device for automatic regulation of the process of separating fro

Details Device for automatic regulation of the process of separating fro Device for automatic regulation of the process of separating fro

1990-09-21

1996-11-26

Silverman, Stanley S.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209166, 209 1, 209164, B03D 100, B03D 102

Patent

active

055781985

ABSTRACT:
The automatic regulator device comprises a channel for measuring the level and density of pulp in the chamber of a floatation machine, in which two bubbling pipes are in communication with a differential pressure pickup connected to the input of a frother flow-rate regulating channel and to one input of a correction unit whose other input is connected to a pressure pickup communicating with one of the bubbling pipes. The output of the correction unit is connected to the input of a circuit designed to regulate the rate of flow of water with frother in a pulp level stabilizing channel, the output of said circuit being connected to an actuator valve installed on a pipeline feeding water with frother and furnishing a control signal with respect to a pulp level deviation from a preset value. A water-and-frother flow transducer is connected to the input of a circuit designed to regulate the gangue discharge rate in the pulp level stabilizing channel, the output of said circuit being connected to the drive of the actuator valve installed on a gangue discharge branch pipe, said output developing a control signal with respect to a deviation of the water-and-frother flow rate from a preset value.

REFERENCES:
patent: 3474902 (1969-10-01), Putman
patent: 3551897 (1970-12-01), Cooper
patent: 4552651 (1985-11-01), Sandbrook
"Systemy automaticheskogo kontrolya i upravlenia tekhnologicheskimi protsessami flotatsionnykh ustanovok" by Kovin et al, Nedra Publishers, Moscow 1981 pp. 69-73. (no translation).

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