Hot repair material of refractory materials

A hot repair material of refractory materials, comprising main materials and binding agents as raw materials, wherein the main materials comprise silicon carbide powders with different particle sizes, and the binding agents comprise silicon nitride powders, a sodium silicate powder, an aluminum phosphate powder, a furfuryl alcohol, a resin powder, sol powders, a silicon oxide micronized powder, a vanadium oxide powder, a silicon powder, a borax and a rare earth oxide micronized powder;

• wherein a particle size of each of the silicon carbide powders with the different particle sizes is 3-0.038 millimeters (mm), and the silicon carbide powders with the different particle sizes comprise silicon carbides with six different particle sizes;
• wherein the six different particle sizes are six selected from the group consisting of 2.5-3 mm, 2-2.5 mm, 1.25-2 mm, 1-1.25 mm, 0.9-1 mm, 0.8-0.9 mm, 0.6-0.8 mm, 0.5-0.6 mm, 0.4-0.5 mm, 0.3-0.4 mm, 0.25-0.3 mm, 0.2-0.25 mm, 0.15-0.2 mm, 0.1-0.15 mm, 0.044-0.074 mm and 0.038-0.044 mm;
• wherein a particle size of each of the silicon nitride powders is less than or equal to 0.5 mm, the silicon nitride powders comprise silicon nitrides with two different particle sizes, and the two different particle sizes are selected from one of following four types:
• less than or equal to 0.044 mm and 0.044-0.15 mm, less than or equal to 0.044 mm and 0.15-0.25 mm, less than or equal to 0.044 mm and 0.25-0.4 mm, and less than or equal to 0.044 mm and 0.4-0.5 mm;
• wherein a mass ratio of the silicon nitrides with the two different particle sizes according to particle sizes from large to small is 10:10;
• and
• wherein a mass ratio of the silicon carbides with the six different particle sizes according to particle sizes from large to small is 8:5:8:15:8:10.