Efficient furnace maintenance method

[0019] A high-efficiency furnace protection method, which comprises the following steps:

[0020] The first step is to shake the liquid slag to the damaged position of the large surface of the converter lining after the steel of the previous furnace is tapped;

[0021] In the second step, add 2-3 tons of raw dolomite to the furnace;

[0022] The third step is to shake the converter forward to make the raw dolomite and slag fully contact and spread it on the damaged position of the large surface;

[0023] The fourth step is to sinter for about 3 minutes, shake the converter to the position of slag splashing to protect the furnace, and splash the slag dry.

[0024] The fifth step is to pour out the remaining slag. If the amount of slag is not large, the operation of leaving slag can be used to directly add scrap steel.

[0025] Optimized raw dolomite block degree is 80-150mm.

[0026] By adopting the high-efficiency furnace protection method provided by the present invention, th