Corundum slag square brick and preparation method thereof
A corundum slag and square brick technology, applied in the field of square bricks, can solve the problems of high utilization cost and limited usage, and achieve the effects of increasing the strength of the folding mold, improving the utilization rate and added value, and solving land occupation and environmental pollution.
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[0017] The invention provides a preparation method of corundum slag square brick, comprising the following steps:
[0018] 1. Moisture detection: Analyze and detect the moisture content of the raw materials used. Excessive moisture content will cause agglomeration and bonding during the mixing process. If the moisture content exceeds 5wt%, the raw materials should be dried to ensure the uniformity of mixing.
[0019] 2. Mix evenly: Weigh corundum slag, aluminate cement, Guangxi white mud, quartz sand powder and magnesite powder, and use a forced mixer to mix to ensure that the powder is evenly mixed;
[0020] 3. Blow molding: According to the product shape requirements, design the mold, pour the mixture into the mold and blow molding, and the molding pressure is 30-50MPa to obtain the semi-finished product of corundum slag square brick;
[0021] 5. Firing: The semi-finished corundum slag square brick is calcined at high temperature to obtain the finished corundum slag square b...
Embodiment 1
[0033] Dry the raw material moisture to less than 5wt%, and weigh various materials according to the formula in Table 1. After forced stirring and mixing, pressing and molding, and calcining at 1200 ° C, the corundum slag square brick product is obtained.
[0034] Table 1 embodiment 1 corundum slag wide brick production ratio
[0035] raw material name Particle size / mm Weight ratio / % Corundum slag ≤0.088 71 aluminate cement ≤0.088 4 Guangxi white mud ≤0.088 10 Quartz sand powder ≤0.088 10 magnesite powder ≤0.088 5 water (extra) 4
Embodiment 2
[0037] Dry the raw material moisture to less than 5wt%, and weigh various materials according to the formula in Table 2. After forced stirring and mixing, pressing and molding, and calcining at 1200 ° C, the corundum slag square brick product is obtained.
[0038] Table 2 embodiment 2 corundum slag wide brick production ratio
[0039] raw material name Particle size / mm Weight ratio / % Corundum slag ≤0.088 67 aluminate cement ≤0.088 5 Guangxi white mud ≤0.088 10 Quartz sand powder ≤0.088 12 magnesite powder ≤0.088 6 water (extra) 4
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