Control system and control method of tilting type butt autogenous grinding machine

Abstract

The invention belongs to the field of aluminum electrolysis residual electrode self-grinding cleaning, in particular to a control system and a control method of a tipping type residual electrode self-grinding machine. The system comprises a discharging device, a feeding device, a cleaning roller, a bearing block, an oil cylinder, a speed reducing motor, a guide sleeve and a PLC. The method comprises the steps of (1) a feeding stage, specifically, the discharging device starts to work, the speed reducing motor operates, and thus a residual electrode is pushed to the left side of the cleaning roller of the to-be-cleaned residual electrode; (2) a self-grinding stage, specifically, the speed reducing motor operates, and for the residual electrode in the cleaning roller, an electrolyte on the surface of the residual electrode is ground through the self-grinding of the residual electrode; (3) a discharging stage, specifically, a piston rod of the oil cylinder extends out to anticlockwisely tip the residual electrode self-grinding machine around the bearing seat, the speed reducing motor reversely runs to discharge the cleaned residual electrode; and (4) a return stage, specifically, thespeed reducing motor stops running, and the piston rod of the oil cylinder retracts to return to the original position. According to the system and the method, the automatic control is realized, the labor intensity of operators is relieved, the working efficiency is improved, the pollution is reduced, and the operation and the system are safer and more reliable.

Description

technical field [0001] The invention belongs to the field of self-grinding and cleaning of anode residues in aluminum electrolysis, and specifically relates to a control system and a control method for a tilting anode residue self-grinding machine. Background technique [0002] During the electrolysis process, the surface of the residual electrode of the anode carbon block will condense into a hard electrolyte shell composed of aluminum, sodium, potassium, calcium, magnesium, fluorine and other components. When the residual electrode containing this electrolyte is broken and recycled again, it will be greatly Significantly reduces the quality of anode carbon blocks. At present, the equipment for cleaning electrolyte includes shot blasting, vibrating, shovel and manual cleaning. Shot blasting is to throw small steel balls at high speed to hit the electrolyte on the residual electrode. The operation cost of this kind of equipment is extremely high. high. Other cleaning metho...

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Problems solved by technology

[0003] The inclined self-grinding machine for aluminum electrolytic residual poles has the following disadvantages: 1. The horizontal component force of the material and the self-grinding cylinder is overcome by the retaining wheel, and there are inevitably manufacturing and installation deviations between the retaining wheel and the retaining ring. When working, the self-grinding cylinder will move repeatedly along the axial direction. Since the outer edge of the supporting wheel is provided with a rubber ring, the rubber ring will be separated from the hub of the supporting wheel in severe cases; 2. The inclined installation will reduce the material in the cylinder. The filling rate reduces the production capacity; 3. The inclined type is not convenient for installation and debugging, and it is not convenient to replace the wearing parts such as the inner lining because there are no manholes in the cylinder; 4. Manual operation may cause operational errors during work.

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