A kind of cement produced by utilizing industrial solid waste and its preparation method
A waste, solid-state technology, applied in the field of cement and its preparation, can solve the problems affecting ecological protection in Hezhou City, waste of resources, land resources occupied by high-magnesium waste rock, etc., to improve the comprehensive utilization range, save production costs, and prolong coagulation. effect of time
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Embodiment 1
[0037] A cement produced from industrial solid waste, made of the following raw materials in weight percentages:
[0038] Clinker 80.50%, furnace bottom slag 3.40%, desulfurization gypsum 2.10%, mining waste rock 4.70%, high silica sandstone 1.00%, fly ash 0.90%, high magnesium waste rock 5.00%, phosphogypsum 2.10%, titanium gypsum 0.30% ;
[0039] Wherein said clinker is made from the raw material of following weight percent:
[0040] Ordinary limestone 73.90%, marble sawdust 4.70%, marble scrap 6.40%, high-magnesium waste rock 2.00%, sandstone 10.60%, laterite 1.90%, wet discharge fly ash 0.50%.
[0041] A preparation method for producing cement by utilizing industrial solid waste, comprising the following steps:
[0042] (1) Press-filter the water content of natural marble or artificial marble sawdust to ≤25%, then mix and grind marble sawdust, marble scraps, high-magnesium waste rock, ordinary limestone, sandstone and laterite according to the mass percentages mentioned ...
Embodiment 2
[0047] A cement produced from industrial solid waste, made of the following raw materials in weight percentages:
[0048] Clinker 82.50%, furnace bottom slag 0.30%, desulfurization gypsum 2.60%, mining waste rock 5.00%, fly ash 6.70%, high magnesium waste rock 2.20%, titanium gypsum 0.70%;
[0049] Wherein said clinker is made from the raw material of following weight percent:
[0050] Ordinary limestone 75.00%, marble sawdust 2.50%, marble scrap 3.50%, high magnesium waste rock 2.00%, sandstone 10.00%, laterite 4.00%, wet discharge fly ash 3.00%.
[0051] In this embodiment, in the clinker, marble waste accounts for 6.00%, high-magnesium waste rocks account for 2%, and when preparing cement, other solid wastes account for 17.50%, of which high-magnesium waste rocks account for 2.20%, and titanium gypsum 0.70%.
[0052] The preparation method is the same as in Example 1.
Embodiment 3
[0054] A cement produced from industrial solid waste, made of the following raw materials in weight percentages:
[0055] Clinker 77.00%, furnace bottom slag 2.50%, desulfurization gypsum 5.55%, mining waste rock 7.60%, fly ash 5.90%, high magnesium waste rock 0.40%, phosphogypsum 0.55%, titanium gypsum 0.70%;
[0056] Wherein said clinker is made from the raw material of following weight percent:
[0057] Ordinary limestone 80.24%, marble sawdust 2.00%, high-magnesium waste rock 4.10%, sandstone 11.60%, laterite 1.70%, wet discharge fly ash 0.36%.
[0058] In this embodiment, in the clinker, marble wastes accounted for 2.00%, high-magnesium waste rocks accounted for 4.10%, and when preparing cement, other solid wastes accounted for 23.00%, of which high-magnesium waste rocks accounted for 0.40%, titanium gypsum 0.70%.
[0059] The preparation method is the same as in Example 1.
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