Slot-type Design For 10KA Rare Earth Molten Salt Electrolysis Cell

Energy-saving and Consumption-reducing increase its market competition ability for metallurgical industry along with the development of the rare earth market. We need develop a kind of new structural electrolysis cell urgently to adapt to energy-saving and consumption-reducing. The methods of research and development in aluminum reduction cell are used as a source of reference to exploit a new bottom- cathode-structure rare earth electrolysis cell in the article.Firstly, physical model of the 10KA bottom-liquid cathode-structure rare earth electrolysis cell is determined through referring to many documents .The contour of the electrolysis cell is cylinder. The anode is located in the center of electrolysis cell with the radius of 58 centimeters. Liquid neodymium at the bottom of the electrolysis cell is used as cathode. No sink is installed in the electrolysis cell.Secondly, mathematical model about Electric field of electrolysis cell is established. Electric field for bottom- cathode-structure electrolysis cell with different cathode radius and polar distance is simulated through the MATLAB computer language. The results show that the isolines of the voltage are parallel and current intensity is well distributed between cathode and anticathode, it makes an assurance for electrolysis steadily.Electrolysis cell with different cathode radius and different polar distance correspond different melt voltage. Melt voltage of all electrolysis cells is lower than traditional electrolytic cell's except that the polar distance is 14 cm and the cathode radius is 60 cm.Thirdly, heat balance for different electrolysis cell with different cathode radius and different polar distance is calculated. The results show that the output and input of the heat are balanced when the polar distance are 10 cm, 11 cm, 12 cm and 13 cm corresponds the cathode radius is 62 cm, 63 cm, 64 cm and 65 cm. The electrolytic cell with polar distance is 13 cm and cathode radius is 65 cm is better considering many factors.Temperature field of electrolysis cell determined finally is simulated using the ANSYS Thermal Electric field module. The results show that the temperature distribution in the electrolysis cell which the polar distance is 64 cm and the polar distance is 12 cm is reasonable. The highest temperature 1072℃appears in the electrolysis region between cathode and anticathode. The lowest temperature 953℃appears at the top of the electrolysis cell near the edge. The electrolysis cell is determined which The polar distance and the polar distance is 64cm and 12cm considering the advantages and disadvantages about gaseous emission and operation whether is convenient, the electrolyte whether is polluted easily, etc.This Project with Direction and practicability not only make an exploration in theory, an innovation in practice but also provide a basis for production.