In the production of aluminum electrolysis plant, anode is known as "the heart of electrolysis", and the casting quality of anode phosphorus pig iron directly affects the high and low power consumption of tons of aluminum. In the process of casting phosphorus pig iron, due to the differences in the formula, casting process and casting level of phosphorus pig iron, the electrode assembly quality will be greatly different, which is manifested in the difference of electrode power consumption after assembly. Especially in the production practice of large-scale pre-baked aluminum electrolytic cell, the current intensity is generally large, and the voltage drop (even if it is very small) at each place is also a large number for a long time. How to reduce the casting voltage drop of phosphorus pig iron and reduce the loss of "black" voltage is an important index to achieve the fine production of electrolytic aluminum. In addition, in the production and assembly of the anode stub, due to the differences in the material itself of the cast stub and the structural stub, or the differences in the casting process, welding process, and the level of implementation personnel, the final result is a huge difference in the quality of the anode stub. Bad casting and welding stub, which has large resistance and poor conductive ability, will cause high loss in the later production process, resulting in a large amount of electricity wasted, reducing the economic benefits of the plant. Improving the anode stub body voltage drop and weld voltage drop also has a great significance of energy saving and consumption reduction.
Therefore, it is necessary to develop an online equipment that can detect and reflect the casting quality in time. Combining years of experience in developing equipment for the aluminum industry, Jingwei Technology has developed JW-1802E anode assembly quality on-line detection system, which is designed by adopting high-precision constant-current power supply technology, measurement technology, infrared temperature measurement technology, and embedded software technology, and is able to accurately measure the casting quality. With accurate measurement, convenient operation and stable performance, this online device is a targeted inspection system for anode assembly workshop.
