Aluminum electrolysis tank external-compensation power supply rectification set aluminum bus arrangement method and system thereof

Abstract

The invention relates to an aluminum bus arrangement method and a system thereof, and especially relates to an aluminum electrolysis tank external-compensation power supply rectification set aluminum bus arrangement method for the arrangement of the external compensation current direct-current bus of the working current and working voltage parameter selection, the flue end and the aluminum outlet end of an electrolytic aluminum auxiliary power supply rectification system, and a system thereof. An aluminum outlet end rectification system is eliminated, one end of an aluminum outlet end compensation bus is connected with a flue end compensation rectification system, the other end of the aluminum outlet end compensation bus is connected with a flue end compensation bus, and the other end of the flue end compensation bus is connected with the flue end compensation rectification system. The adoption of a current superposing principle in the invention reduces the current of the power supply rectification system and properly improves the direct-current running voltage of the power supply rectification system in order to improve the running efficiency of the rectification system when the electrolytic technology external compensation current is satisfied.

Description

technical field [0001] The present invention relates to an aluminum busbar arrangement method and system, in particular to an aluminum electrolytic cell external compensation power supply for an aluminum electrolytic cell auxiliary power supply rectifier system working current, working voltage parameter selection, flue end, and aluminum outlet end external compensation current DC busbar arrangement A rectifier unit aluminum busbar layout method and system. Background technique [0002] The electrolytic aluminum DC production system is a production system composed of hundreds of electrolytic cells connected in series. In order to simplify the structure of the compensation busbar around the electrolytic cell, optimize the compensation effect, and especially improve the compensation effect at the end of the aluminum electrolytic cell, it is usually used at both ends of the aluminum electrolytic cell. A small side, that is, an additional fixed current is added to the aluminum ou...

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Problems solved by technology

[0002] The electrolytic aluminum DC production system is a production system composed of hundreds of electrolytic cells connected in series. In order to simplify the structure of the compensation busbar around the electrolytic cell, optimize the compensation effect, and especially improve the compensation effect at the end of the aluminum electrolytic cell, it is usually used at both ends of the aluminum electrolytic cell. A small side, that is, an additional fixed current is added to the aluminum outlet end and the flue end as the external compensation technology of the electrolytic cell. In order to supply the external compensation current of the aluminum electrolytic cell, it is usually better to add an additional small rectifier unit. However, due to the small compensation unit brought The load is only to compensate the two facet ends of the electrolytic cell, which is a pure resistance load, and the voltage is only the voltage drop of the busbar, usually DC 25-40V, so the small compensating unit that supplies power to it is a typical low-voltage and high-current power supply rectifier unit , for such a low-voltage and high-current rectifier unit, due to the restriction of the threshold voltage of the rectifier diode, the operation efficiency of the rectifier unit will be very low. Efficiency, in order to improve the operating voltage of the rectifier unit as much as possible, only increase the length of the compensation bus, but because the external compensation current technology of the aluminum electrolytic cell is to improve the magnetic field balance of the electrolytic cell through independent compensation current to improve the efficiency of the electrolytic cell, and then indirectly achieve the effect of energy saving , so from the point of view of energy-saving effect, the shorter the compensation current bus, the better. In order to solve the above contradictions, we must find a good way to increase the external compensation current bus as much as possible to properly increase the operating DC voltage of the rectification system

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