Force position servo control system for automatically cleaning carbon bowl of anode carbon block for aluminum electrolysis

Abstract

The invention discloses a force position servo control system for automatically cleaning a carbon bowl of an anode carbon block for aluminum electrolysis, comprising five servo driving motors with absolute encoders, two pressure sensors, a torque sensor, a programmable logic controller, a photoelectric switch and a vision system, wherein the programmable logic controller is communicated with the five servo driving motors through a field bus and connected with the pressure sensors and the torque sensor through an I / O (Input / Output) port; the photoelectric switch is installed at an initial position and a final position of the carbon block and used for locating the carbon block; the vision system is used for locating a carbon bowl center and a chute angle; and the programmable logic controller is used for locating a cleaning tool to the carbon bowl of the carbon block and a chute according to position information obtained by the vision system and controlling the tool to simultaneously clean the carbon bowl and the chute. By using the force position servo control system, full-automatic force position serve control for locating the anode carbon block, measuring the height of the anode carbon block, locating the carbon bowl and the chute and cleaning the carbon bowl and the chute can be realized.

Description

technical field [0001] The invention relates to an industrial servo control system, in particular to a force position servo control system for realizing automatic cleaning of anode carbon block carbon bowls for aluminum electrolysis. Background technique [0002] Domestic aluminum electrolytic aluminum electrolytic anode carbon blocks use petroleum coke as raw material, and undergo high-temperature calcination, kneading, molding, roasting and other processes to obtain roasted anode blocks. The carbon block is used as an anode to replace aluminum metal through electrolysis. The anode carbon block is shown in Figure 4. There are four blind holes on the upper surface of the carbon block with a diameter of about 170mm. The inner wall of the hole has a spiral groove with a rise angle of 75°. These blind holes are commonly called carbon bowls. Insert the conductive steel claw into the charcoal bowl and cast it firmly, then it can be sent to the electrolytic cell for use. The rol...

AI Technical Summary

Problems solved by technology

The current cleaning method for carbon blocks is to use a special shovel to shovel off the carbon particles on the surface of the carbon block and in the carbon bowl, and then blow them away with compressed air. Manual cleaning of the carbon blocks generally takes 2-3 times to meet the qualified requirements. , and the compressed air will make the carbon powder diffuse in the air, which makes the working environment of the carbon block cleaning harsh, the workload is large, the personnel mobility is large, and there are potential safety hazards

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