high - strength alkali - resistant castable cement kiln
In China, the new dry process of rapid development of cement, PC, SP kiln lining design and brick is also very complex. In order to adapt to this situation, developed a series of new castables to replace the traditional refractory refractory. Practice has proved that, in the complex structure, kiln deformation and other parts of the castable is more appropriate. Castables also apply to the cooling machine, preheater, decomposition furnace, kiln door cover, the tertiary air duct and other parts of the required insulation. Its varieties include alkali-resistant castable, high alumina and corundum castable, castable insulation, steel fiber reinforced refractory castable . The application of these castables has been successful, its use in the PC kiln fire-resistant refractory company accounted for 25% to 35% of the total. 1, alkali-resistant castable Tests show that alkali-sagging material with excellent alkali resistance than ordinary clay or high aluminum puddling material is much better. Ordinary and low-cement alkali-resistant castables have been successfully used in double-walled structural linings for the pre-heater roof, cone, tertiary air ducts, etc. where the shaped bricks are not suitable. Low cement alkali pouring material can also be used after the kiln, cooler and kiln door cover and other parts. 2, high alumina and corundum castable Cement kiln with high alumina and corundum castables, including low cement and ultra-low cement castable refractory materials for furnace , high strength corundum castable and so on. Casting in the calcined bauxite and cut jade as aggregate. Low cement and ultra-low cement high aluminum castable can be used for front and rear kiln, chain belt, kiln door cover and cooler side wall and other parts. 3, insulation casting Division Cement kiln with castable insulation materials, including ordinary insulation puddling material, high-strength insulation castable, ordinary and low-cement alkali-resistant castable insulation. insulating refractory cement is usually used as the binder in the castable. Common type of thermal insulation castable perlite, expanded vermiculite and waste light brick as aggregate. High-strength heat-resistant castable using refractory clay ceramic, fly ash ceramsite, shale ceramsite as aggregate. Alkali-resistant castable is used alkali-resistant lightweight aggregate. Ordinary type of insulation castable and its prefabricated block in the cooler, preheater, decomposition furnace, kiln door cover and the tertiary air duct and other parts of the double-layer structure lining for the insulation village; high-strength castable insulation and its prefabricated Blocks can be made in the traditional kiln neck tropical and decomposition with a single layer of lining. Ordinary and low-cement alkali-resistant castable can be used in small and medium-sized kiln in the preheater and other requirements of the site of alkali-resistant insulation. 4, steel fiber reinforced refractory castable Adding steel fiber can improve the anti-demolition strength of castable, and greatly improve the thermal shock resistance of castables, impact resistance and wear resistance. Our company has carried on the massive system research to the steel fiber reinforced refractory pouring material, developed a series of steel fiber reinforced refractory castable.
Features: The use of low-cement technology, adding ultra-fine powder and efficient dispersant, high strength, good thermal stability, impact resistance, erosion resistance, wear and long service life. Excellent choice of materials, castable refractoriness as high as 1790 ℃, high temperature performance. Machine mixing, pouring construction, spray-type machine can be semi-dry spraying construction and convenient construction, greatly shorten the duration, a significant economic benefits. Uses: cement kiln preheater lining, pipeline lining, cooler lining, gunpowder bandaging, before and after the kiln, cooler and other high-temperature parts. Can be pre-made into a variety of sizes of pre-block, but also spraying construction (preheater lining). Usage: add water into the mortar mixing vibration casting, or the production of various types of prefabricated block, spray type can be semi-dry spray construction