.160 Ka Electrolyzer Expansion Transformation

Reinforced current is the tendency that present world aluminum electrolysis industry develops , is also the urgent requirement of the aluminum industrial development of our country. Author aims at the Chinese aluminum trade Qinghai existent unit area output of bottom land of the branch current electrolysis groove of 160 KA to low , groove chest bottom product the exceptional current density of negative pole the lower potential of power supply could not ample excavate etc. problem, for the current electrolysis of 160 KA groove expand allow 180 KA the research that has carried out the experiment of feasibility and industry. Major research content and accomplishment are:1) the prerequisite that changes Qinghai branch electrolysis groove basically structural, bus disposition and the span of positive pole adopts the structure of positive pole , and it is of 1500 mm to go to the size of positive pole from the extension of 1400 mm, the industrial test result and purpose that can reach reinforced current show that the electrolysis groove after reinforcement is completely feasible on teclinology and technology.2) for the electrolysis groove liner of overhaul, structure has carried out optimization , has offered technology guarantee to expand life etc., technical parameter and the technology condition of allowing rear electrolysis groove.3) expand to allow the liner test and analysis of structural test around physical site , have completed electrolysis groove since 160 KA expands the demonstration of the liner structure that allows after 180 KA, have reached expected goal.The time that author lasts two years shows consummately for the traditional statistical result of the electrolysis groove reinforced current of 160 KA that reforms test research and tests scene , after the electrolysis groove reinforced current of 160 KA can increase efficiently to produce can, reduce cost. Besides, the technical accomplishment and project experience that author gets in research course will offer reference basis for the reinforced transform with type electrolysis groove.