However, these control indicators have not controlled the occurrence of electrode accidents in the production practice of small and medium-sized calcium carbide furnaces in the past decades. At present, the diameter of the electrode of the large closed calcium carbide furnace to be developed is relatively large, and the working length is relatively long. The tensile force generated by its own weight is larger, which requires high mechanical strength, and it also needs to re regulate the new compressive strength control index;
Now energy conservation has become a national policy again. The national standard for energy consumption indicators of large closed calcium carbide furnaces is quite strict, so the electrode paste should have a relatively small resistance coefficient. The electrode paste is a conductive material used for ferroalloy furnaces, calcium carbide furnaces and other electric furnace equipment. It can withstand high temperature, and the thermal expansion coefficient of electrode paste is small.
It has a relatively small resistance coefficient, which can reduce the loss of electric energy. With small porosity, the heated electrode can be oxidized slowly. With high mechanical strength, the electrode will not break due to the influence of mechanical and electrical loads. The current is smelted by the electric arc generated by the electrode input into the furnace. The electrode plays a very important role in the whole electric furnace. Without it, the electric furnace cannot play a role.
In order to make the electrode work normally under the temperature generated by the arc, the electrode paste needs to have high oxidation resistance and conductivity. A kind of electrode paste baking temperature tester includes: temperature acquisition module, amplification module, a / D conversion module, single chip microcomputer and voice broadcasting module connected in turn. Further, the temperature acquisition module is a nickel chromium nickel silicon thermocouple. Further, the amplifying module is a temperature transmitter of the heating resistance. Further, it also includes an LED display module connected with the single chip microcomputer.
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