Replacing and gap-repairing device and method for converter bottom-blowing brick

Abstract

The invention discloses a replacing and gap-repairing device and method for a converter bottom-blowing brick, which belongs to the technical field of converter steel-making, and solves the problem that the whole gap cannot be uniformly filled up with refractory mortar during gap repair in a bottom-blowing brick thermal-replacing assembling process. The device comprises the bottom-blowing brick which is positioned at a drilled hole of a furnace body base brick, a gap repairing device, a spraying-blowing tank and a pressing disc, wherein the bottom-blowing brick is a specially-shaped refractorybrick; a through hole is formed in the center of the bottom-blowing brick; the gap repairing device comprises a driven wheel and a drive wheel; at least two supporting rods are arranged on the drivenwheel; the tail ends of the supporting rods are equipped with grinding wheels; a spraying-blowing tube is arranged on the driven wheel; the tail end of the spraying-blowing tube is equipped with a spraying-supplementing gun; the other end of the spraying-supplementing gun is connected with a spraying-blowing tank; the spraying-blowing tank is equipped with a spraying-blowing carrier gas tube; andthe pressing disc is adjacent to the driven wheel. The method comprises the steps of drilling, mounting the bottom-blowing brick, mounting the gap repairing device, repairing, purging and sintering. According to the gap repairing method and mated equipment disclosed by the invention, safety guarantee is provided for online thermal replacement of the bottom-blowing brick, so that economic benefitsare obvious.

Description

technical field [0001] The invention belongs to the technical field of converter steelmaking, and in particular relates to a converter bottom blowing brick replacement and gap repair device and method thereof. Background technique [0002] Converter top-bottom combined blowing technology has become an indispensable technical method for converter steelmaking, and has been widely used. Bottom-blown permeable bricks are the core of converter compound blowing technology. Good bottom blowing effect is to ensure the combined blowing converter metallurgy. The key to the effect, the bottom blowing effect is the key index to evaluate the production control of the top-bottom combined blowing converter. The normal bottom blowing effect, combined with the oxygen supply of the top-blowing oxygen lance, can achieve the best stirring effect of the metallurgical molten pool and ensure the smelting process. Stable, less splashing, making the C-O product of molten steel at the end point close...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a device for replacing and repairing the gap between blown bricks at the bottom of the converter, so as to solve the problem that the refractory mud cannot evenly fill the entire gap when the gap is repaired during the assembly process of the hot replacement bottom blown brick

[0008] Another object of the present invention is to provide a method for replacing and gap repairing the bottom blowing bricks of the converter, so as to solve the problem that there is no safe and feasible mechanized operation method for gap repair during the assembly process of the bottom blowing bricks

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