- Time:Jul 20, 2023
There may be many reasons for bricks falling in cement kilns, some of the common reasons are as follows:
1. Thermal stress: There is an environment of high temperature and rapid temperature change in the cement kiln. This causes the refractory bricks to undergo thermal expansion and contraction during heating and cooling, causing thermal stress. If the masonry is improper or the refractory brick is damaged, thermal stress may cause the brick body to crack or fall off.
2. Mechanical vibration: Mechanical vibration may occur during the operation of the cement kiln, such as the vibration of the rotating mechanism and equipment, the impact of the import and export of materials, etc. These vibrations cause additional mechanical stress on the refractory bricks, causing the bricks to loosen or fall.
3. Chemical erosion: Gases and chemical substances produced during cement production, such as alkali metals, sulfur, and carbonates, may react with refractory materials and cause erosion. Long-term chemical attack can weaken the structure of the brick body, resulting in the phenomenon of brick falling.
4. Improper masonry: If the masonry of refractory bricks is not correct, such as improper mortar ratio, uneven filling of brick joints or improper joint treatment, then refractory bricks may not be tightly fixed on the kiln wall, which is prone to brick falling.
5. Kiln wall material corrosion: The working environment in the cement kiln may corrode the kiln wall material. If the kiln wall materials are corroded and worn, they will not be able to provide sufficient support and fixation, resulting in loosening and falling of the brick body.
It is important to point out that the best way to solve the problem of brick drop caused by cement kiln is to consider the above factors together and take appropriate preventive measures. This may include selection of quality refractory brick materials, proper masonry and installation, regular inspection and maintenance of kiln walls, and monitoring and control of temperature and vibration within the kiln, among others. Professional kiln design and maintenance personnel can provide more detailed and personalized suggestions to ensure the normal operation of the cement kiln and reduce the risk of brick loss.
