The function of electrode tube in operation of calcium carbide furnace-Part

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The function of electrode tube in operation of calcium carbide furnace-Part③ Decrease current skin effect during electrode roasting and accelerate sintering o

The function of electrode tube in operation of calcium carbide furnace-Part

③ Decrease current skin effect during electrode roasting and accelerate sintering of electrode center.Electrode tube decreases when the current through the electrode of stiffened plates of skin effect, make the current through the center of the electrode, stiffened plate guide to speed up the center electrode sintering, electrode is especially important for large diameter, the bigger the electrode diameter, the strength of the skin effect, so the electrode diameter of electrode tube in addition to the electrode steel plate, the inside of the stiffened plates in the electrode also add 1822 mm of round steel welding,To strengthen the conduction of electrode core to accelerate the sintering speed of electrode core.

④ Bear the dead weight of the electrode when pressing the electrode.Process is put in electrode pressure, open the clamping device of the electrode, on the brake clamping electrode, the whole weight of the electrode effect on electrode under on the brake cylinder, the greater the electrode diameter electrode weight, in addition to the weight of electrode tube and sintering good electrode work end and electrode tube is no sintering, the weight of the electrode paste in 10 tons, the pull force caused by the weight,All of them are acted on the electrode barrel, which is completely borne by the electrode barrel.

In addition, the rib plate and iron bar in the electrode cylinder can increase the contact area between the electrode cylinder and electrode paste. Before the electrode is sintered well, the conductivity is poor, and the current is transmitted to the electrode cylinder through the conductive clip to sintered electrode. If the contact area between electrode cylinder and electrode paste is small and the resistance is large, it is easy to burn out or break down the electrode cylinder, resulting in paste leakage accident.At the same time, the steel bar and the steel bar are closely bonded with the electrode paste, which increases the tensile strength of the electrode and effectively prevents the disjointed electrode paste and electrode cylinder and the core-pulling problems during the electrode pressure release.Increase the conductive ability of the electrode, the electrode is not sintered well before the conductivity is poor, during this period mainly rely on electrode barrel, steel plate and steel bar conductive.