Press-in treatment process method for iron notch sputtering of blast furnace

Abstract

The invention relates to a press-in treatment process method for the iron notch sputtering of a blast furnace, which is characterized in that a special refractory material for an iron notch is pressed into the cold surface and the heat surface of a cooling wall, iron notch combined bricks, and the cracks and the defects of iron notch channel brick ladles via a press-in equipment unit and by adopting the process steps of iron notch cleaning, iron notch sealing plate welding, furnace shell pore opening, and pressure and feed quantity control. The highest pressure of construction equipment is controlled to be not greater than 30 MPa, the pressure of furnace shell press-in holes is controlled to be 1-5 MPa, the press-in quantity of the refractory material is adjusted and controlled via a press-in equipment control system, the press-in speed is controlled to be in a range from 10 to 75 kg per minute, and is steplessly adjusted. The invention discloses a press-in treatment process method which is low in cost and short in furnace blowout time, for the iron notch sputtering of a blast furnace, wherein via the press-in treatment process method, coal gas blowby channels are blocked and sealed, so as to achieve prevention for coal gas blowby in an iron notch area, eliminate the phenomenon of iron notch sputtering, ensure the smooth iron tapping of the iron notch, and improve the operating environment and the smelting safety performance of the blast furnace.

Description

technical field [0001] The invention belongs to the technical field of blast furnace smelting and maintenance in the metallurgical industry, and in particular relates to a blast furnace tap hole splash press-in treatment process for gas leakage at the blast furnace tap hole and iron splash phenomenon for maintenance. Background technique [0002] At present, in the metallurgical production industry at home and abroad, when some blast furnaces are in production and operation, due to the gaps in the refractory materials in the tapholes, the gas leaks to the tapholes through the gaps, causing the sputtering of the tapholes, which seriously affects the operating environment and safe production in front of the furnace. Contents of the invention [0003] The present invention overcomes the above-mentioned defects, and aims at solving the blow-by of blast furnace taphole gas, eliminating taphole splashing, and providing a treatment method for blast furnace taphole splashing and pr...

AI Technical Summary

Problems solved by technology

[0002] At present, in the metallurgical production industry at home and abroad, when some blast furnaces are in production and operation, due to the gaps in the refractory materials in the tapholes, the gas leaks to the tapholes through the gaps, causing the sputtering of the tapholes, which seriously affects the operating environment and safe production in front of the furnace.