DEVICE OF AUTOCONTROL OF MELTING PROCESS OF WHITE ALUMINA Russian patent published in 2009 - IPC F27B3/28 H05B7/144 C01F7/02 

FIELD: metallurgy.

SUBSTANCE: device for control of white alumina melting in electroarc furnace contains electrostatic precipitator implemented with ability of extraction of constant component of furnace voltage, comparator unit, current probe in electrodes. Device is outfitted by two summator, sensor of stages switching of voltage of transformer and microprocessor, herewith on inlets of the first summator there are connected electrostatic precipitator, current sensor in electrodes and sensor of switching of voltage stages of transformer voltage. Outlet of the first summator is connected to the first inlet of comparator, the second inlet of which is connected to microprocessor and outlets-to movement mechanism of electrodes and mechanism of stages switching of transformer voltage, outlets of the second summator are connected to current sensor in electrodes and sensor of stages switching of transformer voltage, and its outlet is connected to metering device of charge.

EFFECT: improvement of quality of received product.

1 dwg