- working temperature
The upper limit of the temperature of the incinerator is 1400 ° C, and the erosion rate increases sharply as the temperature rises. This is especially the case when the temperature exceeds 1400 ° C. Especially clay and high alumina refractories are more susceptible to temperature.
2. The influence of Cao and Sio2
The slag is a residue of incineration, and its main components are Al2O3, SiO2, CaO, Fe2O3, and basic oxides, carbonates and alkaline earth metals. SiO2 and CaO are the main influencing factors. In contrast, neutral refractories such as Al2O3-Cr2O3 are more susceptible to this, and as CaO/SiO2 increases, the degree of erosion increases.
3. Stress effect
- Thermal stress caused by temperature gradient
- Metal frame and refractory expansion difference in mechanical stress (including friction) at the contact site
- Tectonic stress caused by oxidation, corrosion, chemical changes caused by foreign components, and crystal transfer
- Loss of support stress caused by corrosion and current destruction of pillars