bauxite aggregate power plant boiler castable high temperature resistant high aluminum aggregate refractory brick refractory aggregate for cement kiln

Alumina cement aggregate (also known as high alumina aggregate)is made from high-temperature calcined and broken alumina clay raw materials, which is a core refractory material.Al₂O₃ contentandGrain SpecificationandImpurity ControlDirectly determines the application scenario.

Homogenized material and non-homogenized material area markers

●Unhomogenized bauxite aggregate directly obtained by crushing the original ore without any uniform mixing process and then directly fired in the kiln.

Features:

1. Component fluctuations are large

2、Calcination is not uniform

半生不熟

Overheating (deformation, glass transition)

"Stuffed with a filling that is cooked on the outside but raw on the inside.

3. High water absorption rate and low density

loose structure, average strength

4、Color inconsistency

Some are yellow, some are gray, and some are red, with a mix of colors in a batch of materials.

5. Cheap, high output, unreliable quality

●Alumina-bauxite aggregate is made by crushing and grinding alumina-bauxite ore to a fine powder, with the ore being mixed in proportion and then ground evenly.Ball and CubeCalcination, cooling, crushing, screening, magnetic separation, and iron removal grading of the finished product

Features:

1. Chemical composition is extremely stable.

2. Calcination is uniform, without raw burning or over-burning.

3、Excellent high-temperature performance

4. Good particle gradation, excellent construction performance

5. Uniform and consistent color

Calcining equipment

●Shuttle kiln: suitable for bulk materials, low investment, moderate energy consumption, suitable for 70~85% Al₂O₃ aggregate

●Cyclone kiln: suitable for powder / pellets, uniform temperature, suitable for high-grade (85%+), large batch.

Finished Product Classification (Based on Al₂O₃ Content)

●High-alumina aggregate: Al₂O₃ 85~90%, fire-resistance temperature 1790~1850℃, suitable for high-temperature kilns, steel container pouring materials, etc.

●Alumina Aggregate: Al₂O₃ 80~85%, General-purpose Refractory Mortars, Refractory Bricks, etc.

●General bone: Al₂O₃ 70~80%, used in general industrial furnaces, insulation layers, etc.

Content Comparison

Factory Real Shot