Long Length Electrodes
An embodiment disclosed herein includes a monolithic graphite electrode. The electrode has a main body having a length of more than 3050 mm. Another embodiment disclosed herein includes an electrode column comprising a plurality of monolithic graphite electrodes. The column has a length of more than 3050 mm of electrode per joint. A further embodiment discussed herein is the practice of increasing the length of the electrode to minimize the occurrence of an electrode joint in the electrode column for a given length. This practice will improve efficiencies for both electrode manufacturers as well as electric arc furnace operators.
1 . A monolithic graphite electrode comprising a main body having a length of at least 3175 mm and a pair of end faces, wherein each end face located at an opposed end of the body, wherein a first end face includes a socket and a second end face includes a threaded tang.
2 . The electrode of claim 1 wherein the TPI of the tang comprises less than four.
3 . The electrode of claim 2 wherein the TPI comprises less than three.
4 . The electrode of claim 1 wherein diameter of the electrode comprises no more than 850 mm.
5 . The electrode of claim 1 wherein the diameter of the electrode comprises from 500 mm to 900 mm.
6 . An electrode column wherein one of the electrodes in the column comprises the electrode of claim 1 .
7 . The electrode column of claim 6 wherein the column has an overall length of at least 6350 mm and less than two joints.
8 . The electrode column of claim 6 comprising over 6300 mm of length and less than two joints.
9 . The electrode of claim 1 wherein an angle of taper of the tang comprises at least 9°.
10 . The electrode of claim 9 wherein the angle of taper comprises at least 15°.