The tall aluminous qualitative adiabatic brick that hot-blast stove uses basically is by tall aluminium the raw material of content is made, its are main raw material includes the following kinds:
Tall aluminium is aluminous: Tall aluminous alumina is the main raw material of brick of tall aluminous qualitative heat insolation, the alumina that contains 50% above normally (Al₂O₃ ) , can achieve 70%-85% even sometimes. This kind of material was offerred admirable high temperature resistant function and corrosion resistance can.
Mo Laishi: Mo Laishi is content of a kind of tall aluminous siliceous salt mine, its structure stability, hot coefficient of expansion is small, the heat-resisting that can raise adiabatic brick pounds function, enhance the mechanical strength of bricky body.
Clay: Use at qualitative raw material of agglutinate tall aluminium, adjust the plasticity of firebrick and agglomeration function. The clay that uses normally is the argillaceous type with fireproof more expensive sex, be like tall aluminous clay.
Light qualitative aggregate: To achieve adiabatic result, join light qualitative aggregate normally, like hollow ball, pearlite, expand pearlite. These material can reduce the bulk density of adiabatic brick, increase hot insulation property.
Additive: Include agglomeration auxiliary and intensifier, the agglomeration property that is used at improving bricky put oneself in another's position, stomatic structure and heatproof shake sex. For example, combine a few inorganic fiber or organic fiber, through small hole structure is being formed after agglomeration, improve adiabatic result of the brick.
These raw material courses mix, shape, dry with high temperature fire hind, make the brick of tall aluminous qualitative heat insolation that has high strenth, high temperature resistant, low thermal conductance, apply to the adiabatic liner of the high temperature equipment such as hot-blast stove.
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