(2) The iron plate hits people too much and too tightly, which leads to the damage of magnesium bricks. It is advisable to use 3 ~ 4 locking brick steel plates per circle. Brick is used for a long time, and it is easy to produce scars inside the brick, which reduces the strength of the brick. At the same time, when the oxidation expansion of the steel plate does little damage to the refractory bricks, it is easy to cause the bricks to be unstable. After running for a period of time, accidents such as lottery, brick falling and kiln brick deformation occurred.
(3) In order to catch up with the progress of masonry, brick surface and brick surface, brick surface and simplified structure are not fully guaranteed.
(4) Frequent unplanned kiln shutdowns lead to rapid cooling and shrinkage of the lining brick surface, which leads to serious failure stress in the brick.
(5) Improper burner position and internal and external air adjustment will cause the flame to scour the kiln skin and damage the refractory bricks.
(6) Poor coal quality and improper air supply in the kiln lead to oxidation or reduction atmosphere in the kiln, making the kiln skin unstable and even spawning.
(7) The temperature of the cold kiln rises too fast, and the refractory bricks are damaged because the temperature curve is not strictly followed.
(8) The first layer of kiln skin is not well bonded, and the kiln skin is not well protected during production.
(9) Refractory bricks are damaged during transportation, handling, loading and unloading and storage.