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Low-carbon Portland cement clinker taking tungsten tailings as raw material and preparation method of low-carbon Portland cement clinker
The invention discloses a low-carbon Portland cement clinker taking tungsten tailings as a raw material, which comprises the following raw materials in parts by weight: 3-24 parts of tungsten tailings, 70-85 parts of limestone, 5-18 parts of siliceous material and 0-5 parts of ferrous material, and the tungsten tailings contain 10-70% of garnet. According to the cement clinker, a large amount of tungsten tailings can be directly consumed, emission of carbon dioxide in the skilled firing decomposition stage of the Portland cement clinker is reduced by utilizing non-carbonate calcareous materials such as garnet in the tungsten tailings, and the Portland cement clinker is fired by utilizing residual fluorite and rare elements in the tungsten tailings, so that the firing temperature is reduced, and the coal consumption is reduced; the quality of Portland cement clinker is not influenced, and the emission of dioxide is greatly reduced.
本发明公开了一种以钨尾矿为原料的低碳硅酸盐水泥熟料，包括以下重量份数的原料：钨尾矿3‑24份、石灰石70‑85份、硅质材料5‑18份、铁质材料0‑5份，其中钨尾矿中含有10‑70％的石榴子石。本发明的水泥熟料可以直接消耗大量钨尾矿，利用钨尾矿中石榴子石等非碳酸盐钙质材料，减少硅酸盐水泥熟料熟练烧制分解阶段二氧化碳排放，利用钨尾矿残留的萤石及稀有元素，矿化硅酸盐水泥熟料烧成，降低烧成温度，减少煤炭消耗，且不影响硅酸盐水泥熟料质量，大幅降低二氧化排放。
Low-carbon Portland cement clinker taking tungsten tailings as raw material and preparation method of low-carbon Portland cement clinker
The invention discloses a low-carbon Portland cement clinker taking tungsten tailings as a raw material, which comprises the following raw materials in parts by weight: 3-24 parts of tungsten tailings, 70-85 parts of limestone, 5-18 parts of siliceous material and 0-5 parts of ferrous material, and the tungsten tailings contain 10-70% of garnet. According to the cement clinker, a large amount of tungsten tailings can be directly consumed, emission of carbon dioxide in the skilled firing decomposition stage of the Portland cement clinker is reduced by utilizing non-carbonate calcareous materials such as garnet in the tungsten tailings, and the Portland cement clinker is fired by utilizing residual fluorite and rare elements in the tungsten tailings, so that the firing temperature is reduced, and the coal consumption is reduced; the quality of Portland cement clinker is not influenced, and the emission of dioxide is greatly reduced.
本发明公开了一种以钨尾矿为原料的低碳硅酸盐水泥熟料，包括以下重量份数的原料：钨尾矿3‑24份、石灰石70‑85份、硅质材料5‑18份、铁质材料0‑5份，其中钨尾矿中含有10‑70％的石榴子石。本发明的水泥熟料可以直接消耗大量钨尾矿，利用钨尾矿中石榴子石等非碳酸盐钙质材料，减少硅酸盐水泥熟料熟练烧制分解阶段二氧化碳排放，利用钨尾矿残留的萤石及稀有元素，矿化硅酸盐水泥熟料烧成，降低烧成温度，减少煤炭消耗，且不影响硅酸盐水泥熟料质量，大幅降低二氧化排放。
Low-carbon Portland cement clinker taking tungsten tailings as raw material and preparation method of low-carbon Portland cement clinker
一种以钨尾矿为原料的低碳硅酸盐水泥熟料及其制备方法
CHEN BOWEN (author) / LIN YONGQUAN (author) / YANG YING (author) / SI HEYANG (author) / ZHANG XINXING (author) / HU JINBO (author)
2022-04-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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