A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Raw material admixture prepared from coal ash solid waste
The invention discloses a raw material admixture prepared from coal ash solid waste. The raw material admixture prepared from coal ash solid waste is characterized by comprising the following components in percentage by weight: 85 to 92% of limestone, 3 to 10% of sandstone, 2 to 10% of fly ash and 2 to 5% of nonferrous metal ash. The limestone contains 10%-30% of SiO2, 5%-15% of Al2O3, 5%-10% of Fe2O3 and 46%-53% of Cao; the sandstone contains 65%-80% of SiO2, 7%-12% of Al2O3, 1.0%-3.0% of Fe2O3 and 1%-5% of CaO; the nonferrous metal ash comprises 20%-30% of SiO2, 9%-20% of Al2O3, 4%-10% of Fe2O3 and 50%-55% of CaO, and the fly ash comprises 25%-35% of SiO2, 35%-45% of Al2O3, 5%-10% of Fe2O3, 5%-10% of CaO, and balance of unburned carbon particles. The method has the advantages that the fly ash is added into the raw material, so that the fly ash can be recycled, and the cement production cost can be reduced. The method has the advantages that the fly ash is added into the raw materials, so that the fly ash can be recycled, and the cement production cost can be reduced.
本发明公开了一种粉煤灰固废做生料掺合料，其特征在于，包括：石灰石、砂岩、有色金属灰渣和粉煤灰，所述石灰石、砂岩、有色金属灰渣和粉煤灰的配料比为石灰石：85％～92％，砂岩：3％～10％，粉煤灰：2％～10％，有色金属灰渣：2％～5％，所述石灰石中包含有SiO2：10％～30％，Al2O3：5％～15％，Fe2O3：5％～10％，CaO：46％～53％，所述砂岩中包含有SiO2：65％～80％，Al2O3：7％～12％，Fe2O3：1.0％～3.0％，CaO：1％～5％，有色金属灰渣中包含有SiO2：20％～30％，Al2O3：9％～20％，Fe2O3：4％～10％，CaO：50％～55％，所述粉煤灰中包含有SiO2：25％～35％，Al2O3：35％～45％，Fe2O3：5％～10％，CaO：5％～10％，其余为未燃尽的炭粒。本发明具备通过向生料内添加粉煤灰，达到即可对粉煤灰进行回收利用，又可降低水泥生产成本的优点。
Raw material admixture prepared from coal ash solid waste
The invention discloses a raw material admixture prepared from coal ash solid waste. The raw material admixture prepared from coal ash solid waste is characterized by comprising the following components in percentage by weight: 85 to 92% of limestone, 3 to 10% of sandstone, 2 to 10% of fly ash and 2 to 5% of nonferrous metal ash. The limestone contains 10%-30% of SiO2, 5%-15% of Al2O3, 5%-10% of Fe2O3 and 46%-53% of Cao; the sandstone contains 65%-80% of SiO2, 7%-12% of Al2O3, 1.0%-3.0% of Fe2O3 and 1%-5% of CaO; the nonferrous metal ash comprises 20%-30% of SiO2, 9%-20% of Al2O3, 4%-10% of Fe2O3 and 50%-55% of CaO, and the fly ash comprises 25%-35% of SiO2, 35%-45% of Al2O3, 5%-10% of Fe2O3, 5%-10% of CaO, and balance of unburned carbon particles. The method has the advantages that the fly ash is added into the raw material, so that the fly ash can be recycled, and the cement production cost can be reduced. The method has the advantages that the fly ash is added into the raw materials, so that the fly ash can be recycled, and the cement production cost can be reduced.
本发明公开了一种粉煤灰固废做生料掺合料，其特征在于，包括：石灰石、砂岩、有色金属灰渣和粉煤灰，所述石灰石、砂岩、有色金属灰渣和粉煤灰的配料比为石灰石：85％～92％，砂岩：3％～10％，粉煤灰：2％～10％，有色金属灰渣：2％～5％，所述石灰石中包含有SiO2：10％～30％，Al2O3：5％～15％，Fe2O3：5％～10％，CaO：46％～53％，所述砂岩中包含有SiO2：65％～80％，Al2O3：7％～12％，Fe2O3：1.0％～3.0％，CaO：1％～5％，有色金属灰渣中包含有SiO2：20％～30％，Al2O3：9％～20％，Fe2O3：4％～10％，CaO：50％～55％，所述粉煤灰中包含有SiO2：25％～35％，Al2O3：35％～45％，Fe2O3：5％～10％，CaO：5％～10％，其余为未燃尽的炭粒。本发明具备通过向生料内添加粉煤灰，达到即可对粉煤灰进行回收利用，又可降低水泥生产成本的优点。
Raw material admixture prepared from coal ash solid waste
一种粉煤灰固废做生料掺合料
ZHANG CHUANYIN (author)
2020-07-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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