The high alumina brick used for tunnel kiln car is generally high aluminum brick with aluminum content above 70%, and the brick type size must be negative. In this process of production and operation, with the change of temperature, high aluminum bricks will appear the phenomenon of rising size, or used for a long time, the joint material loose will also lead to brick against the kiln wall phenomenon.
The phenomenon of high aluminum brick hitting kiln wall is caused by a variety of factors. One is that kiln car brick has a long use time, the joint fire mud or refractory cotton is lost, and the gap increases resulting in the collision with kiln wall. The other is that the size of high aluminum brick is positive, and the size increases during the construction of kiln car brick, and the phenomenon of hitting kiln wall will also occur in the production process.
If the high alumina brick used for kiln car is in the normal size or the size increases, the total length of the paved kiln car brick will increase. In the process of moving, the kiln car will collapse when it hits the kiln wall. After the collapse, the products of the parking space will fall down and be blocked in the kiln, resulting in the blocking and collapse of the kiln car in the rear circulation. Make production impossible. In this case, the total length of the kiln car should be increased first. The total length must be less than 6cm than the length of the kiln, that is, one side is about 3cm shorter. In this way, if the high alumina brick of the kiln car is increased under high temperature in the production process, the production will not be affected.
But if the total length of the kiln car is longer than the diameter of the kiln car, it must be treated. The brick of the kiln car can be knocked off about 3cm by an Angle grinder, and it is flattened bilaterally. If too long high aluminum brick for kiln car is used, it is necessary to remove and relay the brick, because the joint material, such as fire mud, has fallen under high temperature, and the joint between the brick and the brick increases, resulting in the length of kiln car brick increasing, affecting the use of the brick.
The kiln car is paved with high alumina bricks. Each unit has the habit of laying bricks from the middle seam to both sides, and some are the manufacturer's own bricks. According to the size of its own high aluminum bricks, they can be paved by themselves, as long as the total length does not exceed the kiln diameter. Too long paving bricks do not go to smash, smashing with a hammer will make the brick break, try to use the Angle grinder to grind, this will not cause the kiln car high alumina brick fracture, will not make the inside of the brick fragmentation phenomenon, it is just the edge after grinding is not pretty, does not affect the use of.
