Application of Rotary Kiln Preheating Zone Calcium Aluminate Cement Castable

High-strength clay refractory castables are widely used because of their high wear resistance and fire resistance. Application of Rotary Kiln Preheating Zone Calcium Aluminate Cement Castable. Generally used in suitable heating furnaces, soaking furnaces, heat treatment furnaces, rotary kilns, and circulating fluidized bed boilers. It can be used in various high-temperature burner linings, heating furnace water pipe wrapping linings, and other kiln linings, and the use effect is particularly significant.

When preparing high-strength clay refractory castables, in order to improve the grade of refractory aggregates and powders, an appropriate amount of ultrafine powder and conforming additives can be added. Therefore, the water consumption during mixing is reduced, the structure and compactness are improved, the porosity is reduced, and the strength and high-temperature performance are improved.

Castable is a kind of powder composed of various composite materials such as refractory aggregate, refractory powder, and binder, which can be used on-site by adding the appropriate amount of water. The following four key links should be paid attention to during the use of refractory castables, namely mixing, pouring, curing, and baking. Problems in any of these links may lead to product performance degradation or use failure.

Clay castables and clay-bonded castables are both refractory castables, but there are certain differences between the two. First of all, the clay castable contains refractory clay, and the main component is the refractory castable made of refractory clay. The clay-bonded refractory castable is a refractory castable made of refractory clay as a binder.

Clay castable refractories are made of bauxite, coke gemstone, kaolin, etc. as refractory aggregates, and refractory cement (calcium aluminate cement) and other additives are added to make dense castable refractories. The clay castable has good high-temperature performance and a simple production process and can be widely used in blast furnace lining. Details of the application of rotary kiln preheating zone calcium aluminate cement castable. https://refractorycastablecement.com/

Clay refractory castables and clay-bonded refractory castables are often used in kiln linings. High-quality high-temperature performance is the basic indicator of refractory castables. To ensure the normal operation of the kiln, the selection of high-quality refractory castables is the basic guarantee.

Compared with aluminate cement refractory castables, clay refractory castables have the characteristics of high strength, no decrease in medium temperature strength, and good spalling resistance. Compared with refractory plastics, it has the characteristics of convenient construction and easy storage. Its operating temperature is generally 1400 ~ 1500 ℃.

Application of Rotary Kiln Preheating Zone Calcium Aluminate Cement Castable. Clay refractory castables are widely used in flame furnaces such as soaking furnaces and heating furnaces. And achieved good economic results. The service life of the steel rolling heating furnace is generally 3~10 years, the service life of the steel forging chamber heating furnace is about 2 years, and the service life of the single-side upper burner soaking furnace is generally 3~6 years. Using clay clinker and fine powder as raw materials, mixed with fine powder additives, and cement as a binder, the bulk material is used to fill the gap between the furnace throat steel brick and the furnace shell and the secondary pouring layer at the bottom of the furnace bottom water-cooling tube. It is used for the leveling layer at the bottom of the bottom water cooling tube or the inner gap of the steel brick of the furnace throat and the gap between the steel brick and the furnace shell and is also used for the hot blast furnace system.