전기 아크로 바닥을위한 내화성 벽돌 소개

전기 아크로 (EAF) 야금 산업에서 제철소에 사용되는 중요한 장비입니다.. 전기 아크로 금속 스크랩 또는 원료를 가열하여 강철을 생산합니다.. During the operation of the electric arc furnace, the furnace bottom needs to withstand high temperature, 고압,e, and chemical corrosion. 그러므로, the refractory bricks of the furnace bottom must have extremely high fire resistance, 충격 저항, 열 충격 저항, and good chemical stability. These requirements determine the importance of refractory bricks in the selection and use of electric arc furnace bottoms.

What conditions should the refractory bricks of an electric arc furnace meet?

① Low resistivity;
② Low thermal conductivity;
③ Small change in resistance with temperature;
④ Good thermal shock resistance and slag resistance;
⑤ Long service life and low consumption.

Introduction to refractory materials for EAF bottom

To meet the above conditions, conductive 마그네시아 탄소 벽돌 are directly laid on the copper plate of the conductive furnace bottom, and a layer of 래밍 재료 with good conductivity is covered on the built furnace bottom, with a thickness of about 150mm. 생산 과정에서, carbon-containing magnesium materials can be used for repair. This refractory furnace bottom can be repaired hot and cold and has a longer service life than other furnace types.
For magnesia carbon bricks that meet the above requirements for the conductive furnace bottom of the DC arc furnace, only when the key material (석묵) in the magnesia carbon brick reaches a certain amount of residual carbon, can the carbon-containing bonding matrix be used to obtain higher conductivity.