As an important component of industrial kilns, refractory precast block have a series of remarkable characteristics. First, refractory prefabricated parts have good high temperature stability and corrosion resistance, and can operate stably for a long time under high temperature and harsh environment. Secondly, the shape and size of prefabricated parts can be customized according to actual needs, which greatly improves the construction efficiency and the overall performance of the kiln. In addition, refractory prefabricated parts also have high mechanical strength and wear resistance, and can withstand various complex physical and chemical effects in the kiln.
In cement kilns, refractory precast block are widely used in different parts to meet various performance requirements. At the kiln mouth, refractory prefabricated parts need to withstand the scouring of high temperature and high-speed airflow, so they are required to have high thermal shock resistance and wear resistance. At the kiln wall and kiln top, refractory prefabricated parts need to have excellent thermal insulation performance and corrosion resistance to maintain the stable operation of the kiln and extend its service life.
Kiln head hood and kiln head guard plate: high wear resistance and high thermal shock resistance are required to cope with high temperature and material impact. At the same time, chemical corrosion resistance is mainly used to protect the kiln head area from erosion by high-temperature gases and materials.
Kiln body: The kiln body is the main component of the cement kiln and undertakes the calcination process of the material. It requires high refractoriness and wear resistance to withstand mechanical and thermal stresses at high temperatures. In addition,precast block also required to have good thermal shock stability and chemical corrosion resistance.
Kiln tail: The kiln tail is the feed end of the cement kiln, the temperature is relatively low, but it needs to withstand the thermal shock of the preheated material. Good thermal shock resistance and wear resistance are required to cope with the impact and wear of the material.
Preheater and decomposition furnace: used for preheating and decomposition of materials, the temperature is relatively high. Refractory prefabricated parts are required to have high refractoriness and good thermal shock resistance to withstand high temperature and chemical corrosion.
Cooler: used to cool clinker, the temperature changes greatly. Good thermal shock resistance and wear resistance are required to cope with the high temperature impact and wear of clinker.
Combustion chamber and coal injection pipe: It is the area where fuel is burned, and the temperature is extremely high. Extremely high refractoriness and thermal shock resistance are required to withstand the high temperature and thermal shock generated by combustion. At the same time, wear resistance and chemical corrosion resistance are also very important.
With the continuous development of material science and manufacturing technology, the performance of refractory precast block will be further improved, providing more reliable guarantee for the efficient and stable operation of industrial kilns.
