Optimal Design Of Discharge Cooling System Of Continuous Electric Furnace For Graphitization

Graphite is a kind of strategic resources, it is not only widely used in general industrial and consumer sectors, but also widely used in some special industries. With the rapid development of science and technology, new materials and new energy industry, graphite industries which have a Strategic integration are facing a huge development opportunity.But there is no natural high pure graphite. It always contains metal oxide and other impurities. So, in order to obtain the high purity graphite, it have to need a set of graphitization apparatus. Throughout the today’s graphite production equipment, because of many shortcomings, their production mode have not meet the lower energy consumption, environmentally friendly and the higher degree of automation requirements. For example, their Production is not continuous; the cooling time is too long; low productivity; quality fluctuations; high power consumption; poor operating environment and graphite easy oxidation. But it pointed out a new path for today’s graphite production technology since Continuous electric furnace for graphitization is successfully developed.After graphitization key technologies, the efficiency of the cooling system become great constraints when continuous graphite furnace running. Such as if the cooling efficiency is lower so that it cannot keep up the productivity of the furnace, In order to reduce the oxidation of graphite, we had to reduce the number of discharge. Those will increased unit consumption; decreased energy efficiency and destroyed the production process, at the same time it will increase the average temperature of the furnace and Produce a significant impact on the weak part of the lining, what’s more, the lower cooling efficiency will make discharge temperature of graphite higher than400℃.in this case, graphite will oxidation in air (C+O2â†'CO2),and reduce the purity of the graphite. In addition, the security of the cooling system is also very important; it is directly related to the safe operation of the furnace. However, observed today’s cooling equipment, due to the limitations of heat transfer efficiency and temperature, they are unable to meet the production requirements of this furnace. Therefore, in order to improve the productivity and purity of the graphite, design a set of cooling device that reasonable structure and reliable function is particularly important. In this thesis, will get a optimized cooler, the new cooler not only achieve the production requirements, reducing the weight of the furnace, but also reduce water consumption by analysis of current continuous graphite furnace cooling system with the methods of experiment, numerical simulation and computational.