SU333212A1 - DEVICE FOR ANODE MOVEMENT MANAGEMENT - Google Patents

Description

A device for controlling the movement of the anode of electrolytic cells is known, comprising an AC motor, a kinematic circuit, a time relay and a DC source.

A disadvantage of the known device is that there is no accuracy in processing commands for moving the anode of the electrolyzer.

In order to increase the accuracy of the regulation of the interpolar distance, the proposed device contains a bridge with a thyristor in each arm, in one diagonal of which the stator winding is connected, and the alternating current is applied to the other; The control electrodes of the thermistors are connected to the cathodes of the diodes connected by anodes to the individual windings of the control transformer, the second ends of the windings are connected to the cathode of the corresponding thermistor, and the primary winding of the control transformer is connected to the AC network via the normally open time relay.

The drawing shows the functional diagram of the device.

The device consists of a motor 1 connected via a reducer 2 to the anode 3 of the electrolyzer, a command generation device 4 which is the output of the controller 5; 6 diodes 7-10, the secondary windings of the control transformer 11, a normally open contact 12 and a relay 13. The device operates as follows.

When the technological mode of the electrolyzer deviates from the one set at its output, a signal arrives at the command generation device, which generates a command to move the anode up

or down, turning on the drive motor in the appropriate direction. Through the gearbox, the command is fed to the anode. When the upward movement of the anode is completed, it stops, since its inertia is immediately compensated by its own weight. After removal of the down command to move the anode, it continues to move by inertia, therefore, simultaneously with the termination of the down move command of the anode, the command generation device switches on a time relay, the normally open contact of which closes for the time of setting the time relay. During the contact closure, a non-alternating voltage is applied to the primary winding of the transformer controlling the thyristors, and a pulsating voltage appears at the output of the bridge. A current will flow through the stator winding of the motor, and the flow caused by it, interacting with the rotor windings, will create an additional braking torque. A current flows through the stator winding of the motor, and the flow caused by it, interacting with the rotor windings, will create an additional braking torque. The motor through the reducer will prevent it from moving the anode downwards by inertia, and the anode will stop. After the time relay is released, the voltage from the stator winding is removed, and the circuit returns to its original state.

Subject invention

A device for controlling the movement of the anode of electrolysis cells, including an AC motor, a kinematic scheme.

time relay and DC source, characterized in that, in order to increase the accuracy of the regulation of the interpolar distance, it contains a bridge with tistorism in each arm, in one diagonal of which the stator winding is connected, and on the other voltage of alternating current; The control electrodes of the thermistors are connected to the cathodes of the diodes connected

the anodes to the individual windings of the control transformer, the second ends of the windings are connected to the cathode of the corresponding thermistor, and the primary winding of the control transformer is connected to an AC network through a normally open time relay contact.