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High alumina brick implementation standard and conventional size

High alumina brick implementation standard and conventional size


As a common refractory brick, high-alumina bricks have many names in daily applications. Here is a summary of the detailed popular standard names for everyone.

Ekeresimesi brik dị elu/aha nkịtị size (mm) Rickdị brik
B3 brick alumina dị elu 230 * 114 * 65 Kwụ ọtọ
B6 brick alumina dị elu 250 * 123 * 65 Kwụ ọtọ
B14 brick alumina dị elu 171 * 113 * 65 Kwụ ọtọ
B19 brick alumina dị elu 230 * 65 / 55 * 114 anyụike
B20 brick alumina dị elu 230 * 65 / 45 * 114 anyụike
B29 brick alumina dị elu 230 * 65 / 55 * 171 anyụike
B30 brick alumina dị elu 230 * 65 / 45 * 171 anyụike
B38 brick alumina dị elu 230 * 114 * 65 / 55 Ụdị mma
B39 brick alumina dị elu 230 * 114 * 65 / 45 Ụdị mma
Brick alumina dị elu nwere ibe abụọ 230 * 114 * 20 Kwụ ọtọ
Brick alumina dị elu nwere mpempe atọ 230 * 114 * 30 Kwụ ọtọ
Ebe obibi brik aluminom dị elu 230 * 114 * 40 Kwụ ọtọ
Ogwe osisi alumina dị elu ọkara mmanya 230 * 57 * 65 Kwụ ọtọ
Akwa aluminom brik asatọ 520 * 230 * 113 Kwụ ọtọ
Guzobe brik alumina iri dị elu 650 * 230 * 113 Kwụ ọtọ
Debe brik alumina iri na abụọ dị elu 780 * 230 * 113 Kwụ ọtọ
Nnukwu brik alumina anọ dị elu 452 * 230 * 65 Kwụ ọtọ
B1 nnukwu alumina brik 230 * 150 * 75 Kwụ ọtọ
B2 nnukwu alumina brik 345 * 150 * 75 Kwụ ọtọ
B5 nnukwu alumina brik 230 * 150 / 120 * 75 agụba
B6 nnukwu alumina brik 230 * 150 / 110 * 75 agụba

The chemical composition of high alumina bauxite In the chemical composition of high alumina alumina, the main components are Al2O3 and SiO2. Its typical chemical composition is classified according to the chemical composition and use of bauxite.

Grades 1 to 6 are suitable for monohydrate duralumin type ore; Grade 7 is suitable for aluminum type ore. Al2O3 is the main component in bauxite. The higher the content, the better. The current production of industrial alumina requires that the ratio of aluminum to silicon is not less than 3.0. Other oxides are regarded as impurities. SiO2 is a harmful impurity in the production of alumina by alkaline method. The high content of SiO2 in bauxite will reduce the production efficiency of smelting brown corundum or producing industrial alumina.

TiO2 and Fe2O3 in high alumina bauxite are the two main impurities. The content of TiO2 tends to increase simultaneously with the increase of Al2O3. Studies have shown that: TiO2 in the secondary high alumina bauxite mainly forms a solid solution with mullite, and the amount of entering into the glass phase is small, which is not good for the sintering of the product, but it is beneficial to improve the high temperature mechanical properties of the product; In bauxite, TiO2 enters the glass phase more, which will increase the amount of liquid phase and reduce the viscosity of the liquid phase, which is conducive to sintering, but is not conducive to improving the high-temperature performance of the product. The alkali metal oxides K2O and Na2O of high alumina bauxite are very strong fluxes, and they produce a liquid phase at a lower temperature. When its content is too high, it will affect the phase composition and content of the clinker and the product, and adversely affect the performance of the product. The content of CaO in high alumina bauxite is generally low, about 0.2%. Its existence is detrimental to the high-temperature performance of the product, and its content is also limited in technical conditions.

1. The size of refractory brick with high alumina brick No. T-46 is a275 b230 c150 e80 d15 α 60° Volume 6565 Weight (clay brick) 13.5 Weight (semi-silica brick) 13.1 Weight (semi-silica brick) 12.5;

2. The size of refractory brick with high alumina brick No. T-47 is a275 b230 c450 e80 d15 α 60° Volume 19695 weight (clay brick) 40.4 weight (semi-silica brick) 39.4 weight (semi-silica brick) 37.5;

3. The size of refractory brick with high alumina brick No. T-48 is a275 b275 c150 e65 d65 α45° Volume 8040 Weight (clay brick) 16.5 Weight (semi-silica brick) 16.1 Weight (semi-silica brick)

4. The size of general refractory bricks is T-3. The size of refractory bricks is 230*113*65. The national standard and ministry standard dimensions are almost the same length X width X thickness T-1: 172*114*65, T-2: 230*114* 32, T-3: 230*114*65