- Time:Jul 14, 2023
The application of Mg-Al-Cr refractory brick in volatilization kiln mainly involves rotary volatilization kiln (precalciner kiln) and rotary kiln (rotary kiln) in cement production process.
1. Rotary volatilization kiln: Rotary volatilization kiln is an important equipment in cement production, which is used for calcining raw materials and precooking fuel. At high temperatures, limestone and other raw materials undergo a chemical reaction to form clinker. Magnesium-aluminum-chromium refractory bricks are subjected to extreme temperatures, chemical attack and thermal shock in rotary volatilization kilns.
1.1 Refractory performance: Magnesium-aluminum-chromium refractory bricks have excellent refractory performance and can withstand extreme temperatures in high-temperature environments.
1.2 Anti-corrosion performance: They can resist the erosion of acid gas, alkaline gas and alkaline substances produced in the volatilization kiln.
1.3 Thermal shock stability: Magnesium-aluminum-chromium refractory bricks have good thermal shock stability and can withstand thermal stress caused by kiln drum rotation and temperature changes.
1.4 Wear resistance: There is impact and wear of materials in the volatilization kiln. Magnesia-aluminum-chromium refractory bricks have good wear resistance and can reduce equipment damage caused by wear.
2. Rotary kiln: Rotary kiln is the main equipment for calcining clinker in the cement production process. They typically have higher temperatures and harsher operating conditions.
2.1 Refractory performance: Magnesium-aluminum-chromium refractory bricks maintain good refractory performance at high temperatures and can withstand extreme temperatures in rotary kilns.
2.2 Anti-corrosion performance: There are corrosion of flue gas, alkaline materials and acidic materials in the rotary kiln. Magnesium-aluminum-chromium refractory bricks can resist these erosions and prolong the service life of the equipment.
2.3 Thermal shock stability: In the rotary kiln, the thermal shock impact caused by the rotation of the kiln barrel and the temperature change is relatively large. Magnesia-aluminum-chrome refractory bricks have excellent thermal shock stability and can withstand this impact without breaking easily.
2.4 Wear resistance: There are rolling and impact of materials in the rotary kiln. Magnesia-aluminum-chromium refractory bricks have good wear resistance and can reduce equipment damage caused by wear.
The application of magnesia-aluminum-chromium refractory bricks in volatilization kilns is mainly to protect the kiln barrel and inner lining, withstand extreme temperature, chemical erosion and mechanical shock, ensure the stable operation of the equipment and prolong the service life.