Composite mineralizing agent suitable for white sulphoaluminate cement clinker calcination and preparation method thereof
A technology for calcining sulfoaluminate cement and clinker, which is applied in the direction of cement production, etc., can solve the problems of white sulfoaluminate cement affecting the whiteness, great influence on the whiteness of cement, and inability to improve performance, and can reduce the calcination temperature , the reaction rate is accelerated, and the effect of improving the performance of clinker
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[0056] Example 1
[0057] A preparation method of a composite mineralizer suitable for white sulphoaluminate cement includes the following steps:
[0058] (1) Choose fluorite, low-iron strontium slag, siderite, aluminum slag, and white slag as the composite mineralizer raw materials, press CaF 2 0.4 parts, 0.4 parts SrO, 0.35 parts ZnO, 0.35 parts MgO to prepare composite mineralizer raw materials, parts by weight;
[0059] (2) According to the formula of the compound mineralizer, the raw materials in step (1) are mixed uniformly according to the proportion, and then dried until the moisture content is less than 1%;
[0060] (2) Add the dried raw materials in step (2) to a KEQ-4L planetary ball mill to grind and mix uniformly, pass a 200-mesh sieve, and stop grinding when the sieve residue is less than 5 wt%, to obtain a composite mineralizer.
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[0061] Example 2
[0062] A preparation method of a composite mineralizer suitable for white sulphoaluminate cement. It is the same as that in Example 1, except that the ratio of the composite mineralizer is: CaF 2 0.65 parts, SrO 0.1 parts, ZnO 0.1 parts, MgO 0.65 parts, parts by weight.
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[0063] Example 3
[0064] A preparation method of a composite mineralizer suitable for white sulphoaluminate cement. It is the same as that in Example 1, except that the ratio of the composite mineralizer is: CaF 2 0.3 parts, SrO 1.5 parts, ZnO 0.7 parts, MgO 1.0 parts, parts by weight.
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