Intelligent automatic control apparatus with redundancy control of carbon kneading machine

Abstract

The invention discloses an intelligent automatic control apparatus with redundancy control of a carbon kneading machine, and belongs to the technical field of carbon kneading machine control of aluminum industry production plants. The apparatus comprises an air circuit breaker and fuse combination apparatus, a redundancy treatment-intelligent control apparatus, a giving and control switch combination apparatus, a power supply-operation-fault indication apparatus, thermocouples, a pressure transmitter, 8 sets of inverters with built-in display operation panels and DP communication adapter cards, and 8 sets of AC contactors. The advantage is that the redundancy treatment and control can eliminate occurrence of inoperable conditions when electrical equipment and other faults occur. Two inverters are redundant and alternate, and the control apparatus runs reliably. A motor torque is monitored in real time, control parameters are adjusted in real time, time is controlled for a timing function, and the kneading effect is ensured. The carbon kneading machine works stably, the performance of a carbon product is qualified, and the yield is improved. The apparatus is started by one button, and the control process is all intelligent.

Description

technical field [0001] The invention belongs to the technical field of carbon kneading machine control in aluminum production plants, and in particular provides an intelligent carbon kneading machine automatic control device with redundant control. It can make the carbon kneader work stably, make the performance of the carbon product qualified and increase the output. Background technique [0002] In the production process of the aluminum industry, there are generally four production links: aluminum ore mining and processing production-alumina production-electrolytic aluminum smelting production-aluminum processing production to complete the complete industrial chain. Whether the electrolytic aluminum smelting process is good or not directly determines the quality and output of aluminum. In the production process of modern electrolytic aluminum, the electrolyte with alumina as raw material and cryolite as solvent passes through the carbon cathode to precipitate aluminum in ...

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Problems solved by technology

Once the electrical control equipment fails during the kneading process, the equipment will be shut down or the control parameters will be poorly adjusted, and various parameters will not match well. In the slightest, there will be a lot of waste, which will cause a large loss of manpower and energy and increase production costs; in severe cases, the kneader will be shut down. Long-term shutdown, the mixture solidifies, the load on the mixing blade increases, and the kneader is overloaded when it is restarted, and it cannot run anymore. Due to the large equipment and complex structure of the kneader, the kneader chamber can only be opened to remove waste, and it takes several days to recover. Production

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