PRESSURE RING ASSEMBLY FOR CONTACT SHOES IN AN ELECTRODE SYSTEM

摘要

The invention relates to a pressure ring assembly for contact shoes in an electrode system of an electric arc furnace provided with at least one electrode column assembly. The electrode column assembly comprises a contact shoe ring formed of a plurality of contact shoe elements (31), a pressure ring formed of a plurality of pressure blocks (41), and a heat shield formed of a plurality of heat shield segments. An elongated groove (46) is formed on both substantially vertical side edges (45) of each pressure block (41), and an elongated lock bar (61) is placed in the grooves (46) of two adjacent pressure blocks (41) to join said pressure blocks (41) with each other. The form of the lock bar (61) essentially matches to the form of the grooves (46) of said two adjacent pressure blocks (41). Each lock bar (61) is locked in place in the grooves (46) by fastening bolts (49) through holes (48) in the pressure blocks (41).