What principles must the raw materials of refractory bricks be debugged according to?
1. Before building refractory bricks, various refractory mud raw materials should be pre-tested and pre-built to determine the bonding time, initial setting time, consistency and water consumption of different mud raw materials;
2. Prepare different mud raw materials using different instruments and clean them in time;
3. The preparation of different quality mud should use clean water. The water is accurately weighed, mixed evenly, and used as required. The hydraulic and pneumatic slurries that have been prepared for refractory bricks shall not be used with water, and the initially set slurries shall not be used continuously;
4. When preparing and combining mud, pay attention to the specified time for intercepting materials. The prepared mud shall not be diluted with water at will. This mud is corrosive and should not be in direct contact with the metal shell.