- Time:Apr 24, 2023
The molten iron ladle is a kind of equipment used in the steelmaking process for transporting and storing high-temperature molten iron. In order to ensure the safe and stable operation of the ladle under high temperature and strong abrasion environment, it is necessary to use various high temperature refractory materials to line its inner wall. The following is an introduction to the common ladle refractory materials.
According to the working environment of the ladle, the requirements for the refractory materials used are high compressive strength, good slag resistance (both acid slag and alkaline slag resistance), good thermal shock resistance, good spalling resistance, microstructure Dense. Clay bricks, high alumina bricks, impregnated bricks, magnesia carbon bricks, silica-alumina bricks, and some refractory castables and spray coatings are generally used.
1. High alumina brick
Due to its high compressive strength and excellent fire resistance, high alumina bricks are widely used in the manufacture and maintenance of ladles.
2. Expanded mullite brick
Expanded mullite bricks are also widely used in the lining of ladles due to their light weight, low thermal conductivity, and good thermal shock performance.
3. Aluminosilicate brick
Aluminosilicate bricks have good fire resistance and corrosion resistance, and are also suitable for lining of ladles.
4. Silicon carbide brick
Silicon carbide bricks can also be used for the inner lining of ladles because of their high temperature resistance, wear resistance and corrosion resistance.
It should be noted that different types of ladles have different requirements for refractory materials in the process of manufacture and use. Therefore, when selecting and applying refractory materials, comprehensive consideration should be made according to the specific situation, and relevant use and maintenance specifications should be followed to ensure the safe and stable operation of the equipment.
