Submerged arc furnace copper pressure ring and processing method thereof

Abstract

The invention relates to a submerged arc furnace copper pressure ring, which comprises a plurality of copper pressure ring units, wherein each copper pressure ring unit comprises a copper pressure ring unit body, each copper pressure ring unit body is internally provided with a cooling channel, each cooling channel comprises a transverse channel section and a plurality of U-shaped channel sections, the upper section of a left flow channel and the upper section of a right flow channel in each U-shaped channel section are separated by means of an intermediate plug, the lower section of the leftflow channel and the lower section of the right flow channel are communicated with the lower section of an intermediate flow channel, so that the cooling channel reciprocating vertically and extendingtransversely is formed in each copper pressure ring unit body. The invention further provides a processing method of the submerged arc furnace copper pressure ring. The submerged arc furnace copper pressure ring does not need to form a water supply groove in the bottom part of each copper pressure ring unit body nor welding a water supply groove cover plate to the bottom part of the same, therebyremoving a welding seam of the water supply groove cover plate at the bottom part of each copper pressure ring unit body, avoiding the occurrence of phenomena of corrosion, tension fracture and waterleakage since the welding seam is directly exposed in the high temperature environment, prolonging the service life of the copper pressing ring, and reducing the production loss caused by hot shutdown.

Description

technical field [0001] The invention relates to the technical field of metallurgical electric furnace equipment, in particular to a copper pressure ring of a submerged arc furnace and a processing method thereof. Background technique [0002] Submerged arc furnace, also known as electric arc furnace or resistance electric furnace, is mainly used for reducing and smelting ore, carbonaceous reducing agent and solvent and other raw materials, and mainly produces ferro-silicon, ferromanganese, ferrochrome, silicon-manganese alloy and other ferroalloys. Copper pressure ring is an important special water cooling equipment used in submerged arc furnaces. It consists of multiple (usually 6-10) copper pressure ring units to form an annular copper pressure ring, and forms an electrode holder with other equipment. device to ensure that the submerged arc furnace can work stably and continuously. When the submerged arc furnace is in operation, the temperature of the arc generated betwee...

AI Technical Summary

Problems solved by technology

Since the weld seam 016 produced by welding the water channel cover plate 015 is exposed on the outer surface of the bottom of the copper pressure ring unit body 01, it will be exposed to the high temperature environment of the submerged arc furnace for a long time, so the weld seam 016 is prone to corrosion, cracking and damage The phenomenon of water leakage is prone to hot shutdown and maintenance, which affects the service life of the copper pressure ring

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