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Conditions for use of refractory castable for the mouth of cement rotary kiln

Words:[Big][Medium][Small] Mobile Page Two-Dimensional Code 2018-10-15     

Cement rotary kiln mouth refractory lining is the weak link of kiln lining, especially the front kiln mouth refractory lining, the service temperature is about 1100℃, need to withstand rapid cooling, hot gas shock, high temperature cement clinker wear and high temperature harmful gas alkali corrosion, the service conditions are very harsh.Lining damage is mainly: cracking, peeling and abrasion, so the requirement of refractory castable must have good thermal shock resistance, wear resistance and alkali resistance.

When cement rotary kiln mouth cylinder body is not deformed, generally can be used to resist peeling high aluminum brick, spinel brick and directly combined magnesia chrome brick and other fining products masonry, and use high quality mud as joint material, so as to form a whole, prevent falling brick, improve life.However, the deformation of the cylinder body is common, so casting with refractory castable, steel shell on the welding riveting nails, castable mixed with steel fiber reinforced refractory castable, according to the rules of construction and baking, to meet the needs of kiln mouth cylinder lining production.

In foreign countries, brown corundum and high alumina steel fiber reinforced refractory castable are widely used on the front of cement kiln, and its service life can reach 2 ~ 8.Castable has high aluminum content and high strength.Therefore, poor thermal shock resistance, easy cracking and peeling, reduce the service life.Production practice shows that steel fiber reinforced high alumina refractory castable has better effect than steel jade castable.



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