Circular seam type bottom-blowing gas supply brick

Abstract

The invention relates to a circular seam type bottom-blowing gas supply brick, belongs to the technical field of metallurgy, and solves the problems that too large bottom blowing flow easily leads tothe erosion of refractory materials or a pipeline is easily blocked due to too large pressure loss in the prior art. The circular seam type bottom blowing gas supply brick comprises a main body and agas channel, wherein the gas channel comprises a circular seam type gas outlet pipe, a gas distribution chamber and a gas inlet pipe, the circular seam type gas outlet pipe comprises a central pipe, aplurality of outer sleeves and circular seams, and the circular seams are formed between the outer sleeves or between a outer sleeve and the central pipe. According to the circular seam type bottom blowing gas supply brick, the bottom-blowing gas can be adjusted in a large range, the bottom-blowing gas flow can be dispersed in streams while the bottom-blowing gas supply amount is increased, and the high efficiency and the long-service life of the bottom-blowing are finally realized.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a circular seam type bottom-blown gas supply brick. Background technique [0002] With the continuous development of metallurgical technology, during the smelting process, blowing high-stirring gas from the bottom of the molten pool to the smelting molten pool to stir the liquid metal can achieve uniform composition and temperature, speed up mass transfer, promote slag-gold balance, The effect of removing non-metallic inclusions, thereby improving metallurgical efficiency and quality. [0003] At present, the commonly used bottom blowing gas supply components in the metallurgical industry are bottom blowing guns and bottom blowing bricks. Although the existing bottom blowing gas supply components can realize the bottom blowing gas supply, with good maintenance process, it can realize the long life of the bottom blowing, and even realize the synchronization of the life of the ...

AI Technical Summary

Problems solved by technology

Although the existing bottom blowing gas supply components can realize the bottom blowing gas supply, with good maintenance process, it can realize the long life of the bottom blowing, and even realize the synchronization of the life of the bottom blowing and the age of the furnace, but there is a bottom blowing problem for the bottom blowing bricks. The high flow rate is low, the pipeline pressure loss is too large and easy to block. For the bottom blowing gun, there are problems such as funnel-shaped erosion of the bottom blowing nozzle and poor gas dispersion when the bottom blowing is high flow rate.

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