WHAT ARE THE EFFECTS OF REFRACTORY BRICKS?（1）

1 Mechanical damage
In the rotation of the rotating kiln, the bricks located at the trap were squeezed, and the bricks at the top of the rotary kiln tube were stretched by the weight of the kiln skin and the weight of the self -weight in China Refractory Brick. Bricks are in the kiln’s comprehensive mechanical stress of pressure, pull, twist, and cut. The rotation of the kiln, the elliptical degree of the tube, the squeezing, twisting, and the deformation of the kiln tube between the tiles and the tube and the brick, the mechanical stress between the bricks will produce. The gap between the cylinder and the wheel band is large, which increases the oval of the kiln tube body, increased the stress of the cross -lined brick, and the mechanical stress received in the wheel belt is the most serious. After updating the brick, the kiln tube dome was updated. The severe vibration and the kiln lined with local overheating, causing the carcass deformed and squeezing lining. Red kiln occurred at the wheel belt. The China refractory brick was dropped in a large area in one part. The replenishment was adjusted. The native kiln body was no longer vibrated. After this time, there was no red kiln phenomenon.

2 Speak cold and hot heat
The alkaline expansion coefficient is large, and it generates huge thermal stress during the heating process. Therefore, the temperature should be slower when the kiln is dried, so that the swelling of the kiln body to replenish the brick to play the compensation effect of the kiln body in China refractory brick. This is the key to using alkaline bricks. However, it is difficult to accept the drilling time of 10 to 20 hours in actual production. When the problem is found, the high -temperature fan is directly opened for a fast cool kiln. After cooling, it can be found that the magnesium chromium brick without kiln skin is peeled off. The 1680 silicon moor bricks all have the surface peeling, the surface of the break is hard, and some broken pieces are obviously hung on the brick. The burning magnesium chromium brick as China refractory brick is less damaged due to the felling fluctuations of the kiln skin. After the maintenance, in order to grab the output, it is required that the fast cold kiln will inevitably lead to damage to the brick. The cause of the secondary carcass temperature has been buried.