Reduced-pressure anticreeping separation wall of furnace body

Abstract

The invention discloses a reduced-pressure anticreeping separation wall of a furnace body, which is made of firebrick; an axle wire of the separation wall is provided with a plurality of vertical air holes in equivalent interval which are separately distributed in star-shaped manner along the unilateral opened expansion gaps at two sides of the separation wall, and the expansion gaps at the two sides are not overlapped. The separation wall in the technical proposal of the invention is provided with non-communicated expansion gaps at two sides thereof so that coke powder at the two sides of the furnace body can not be communicated and the root cause of the leakage is cut off; on the other hand, the air holes in the technical proposal of the invention can cause the heat on the separation wall transmitted by the air holes to be quickly emitted so that the pressure on the wall caused by expansion and contraction is reduced and the service life of the wall is prolonged.

Description

Furnace decompression and anti-leakage electrical isolation wall technical field The invention relates to a furnace body decompression and anti-leakage isolation wall, in particular to a furnace body decompression and anti-leakage isolation wall for a graphitization furnace. Background technique Graphite electrodes are widely used in the metallurgical industry. According to industry estimates, 150kg of graphite electrodes are consumed for smelting one ton of steel. Therefore, graphite electrodes are consumables in the metallurgical industry, and the consumption is large. The conductivity of the electrodes directly affects the metallurgical efficiency. At present, the most common graphite electrode processing method is to pass a large current in a horizontal resistance furnace to generate high temperature to graphitize the graphite blank. The current processing method is to lay multiple graphite blanks in series and place them in the resistance furnace. The graphite blank i...

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Problems solved by technology

At present, the most common graphite electrode processing method is to pass a large current in a horizontal resistance furnace to generate high temperature to graphitize the graphite blank. The current processing method is to lay multiple graphite blanks in series and place them in the resistance furnace. The graphite blank is covered with a thick thermal insulation layer of coke powder. The furnace body partition wall of the prior art needs to overcome the damage to the wall body due to thermal expansion and cold contraction of the wall body, so it is often used to leave a wall at intervals. Expansion joint, the expansion joint allows ventilation on both sides of the wall. The existence of the expansion joint makes the coke powder on both sides of the partition wall communicate with each other. After the current is applied, the current passes through the coke powder to cause leakage of electricity on both sides of the furnace body, consuming a large amount of electric energy , and the graphitization of the graphite blank at both ends is insufficient, which affects the conductivity of the graphite electrode

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