Check whether the inclination angle of the furnace bottom is correct, which is generally 15 degrees (the lowest point is at the taphole). Under the condition of ensuring the flow direction of molten iron, the high proportion of molten iron can be used to avoid coke falling with the flow.

Check the drum strength of coke. You have to check this yourself. Now coke manufacturers basically don't do this. As long as your hot metal temperature is normal, coke fragmentation can be ignored.