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Preparation method and application of desulfurized building gypsum modified composite material
The invention discloses a preparation method and application of a desulfurized building gypsum modified composite material, and relates to the technical field of gypsum preparation.The preparation method of the desulfurized building gypsum modified composite material comprises the preparation steps that S1, semi-hydrated gypsum is obtained; the method comprises the following steps: drying and crushing an industrial accessory product desulfurized gypsum generated by flue gas desulfurization of a power plant to obtain waste gypsum powder with the fineness of 1800-1900m < 2 >/kg, adding a mineral admixture with the fineness of 1400-1500m < 2 >/kg, uniformly mixing to obtain mixed powder, and calcining the mixed powder for 2-3 hours at the temperature of 180-185 DEG C to obtain semi-hydrated gypsum; s2, preparing modified KR desulfurized powder; the preparation method comprises the following steps: adding KR desulfurization slag generated by a KR stirring process in a molten iron desulfurization process of a steel mill into a polymer solution, uniformly mixing, adding activated carbon powder and high-strength coconut fiber, intermittently stirring for 1-2 hours, standing for 30 minutes, taking out the KR desulfurization slag, naturally airing for 2-2.5 hours, and crushing to obtain modified KR desulfurization powder with the fineness of 1000-1200m < 2 >/kg; the material has the effect of high strength.
本发明公开了脱硫建筑石膏改性复合材料的制备方法及其应用，涉及石膏制备的技术领域，其中，脱硫建筑石膏改性复合材料的制备方法，其制备步骤包括：S1：半水石膏的获取；对电厂烟气脱硫产生的工业附属产物脱硫石膏进行烘干、破碎，获得细度为1800‑1900m2/kg的废弃石膏粉末，并加入细度为1400‑1500m2/kg的矿物掺料均匀混合后获得混合粉料，对上述混合粉料采用180‑185℃煅烧2‑3h，获得半水石膏；S2：改性KR脱硫粉制备；将钢厂铁水脱硫工序中采用KR搅拌法工艺产生的KR脱硫渣加入聚合物溶液均匀混合后，加入活性炭粉末和高强椰壳纤维，间断式搅拌1‑2h后，静置30min后，取出KR脱硫渣，自然晾干2‑2.5h，破碎后，获得细度为1000‑1200m2/kg的改性KR脱硫粉；本发明具有强度高的效果。
Preparation method and application of desulfurized building gypsum modified composite material
The invention discloses a preparation method and application of a desulfurized building gypsum modified composite material, and relates to the technical field of gypsum preparation.The preparation method of the desulfurized building gypsum modified composite material comprises the preparation steps that S1, semi-hydrated gypsum is obtained; the method comprises the following steps: drying and crushing an industrial accessory product desulfurized gypsum generated by flue gas desulfurization of a power plant to obtain waste gypsum powder with the fineness of 1800-1900m < 2 >/kg, adding a mineral admixture with the fineness of 1400-1500m < 2 >/kg, uniformly mixing to obtain mixed powder, and calcining the mixed powder for 2-3 hours at the temperature of 180-185 DEG C to obtain semi-hydrated gypsum; s2, preparing modified KR desulfurized powder; the preparation method comprises the following steps: adding KR desulfurization slag generated by a KR stirring process in a molten iron desulfurization process of a steel mill into a polymer solution, uniformly mixing, adding activated carbon powder and high-strength coconut fiber, intermittently stirring for 1-2 hours, standing for 30 minutes, taking out the KR desulfurization slag, naturally airing for 2-2.5 hours, and crushing to obtain modified KR desulfurization powder with the fineness of 1000-1200m < 2 >/kg; the material has the effect of high strength.
本发明公开了脱硫建筑石膏改性复合材料的制备方法及其应用，涉及石膏制备的技术领域，其中，脱硫建筑石膏改性复合材料的制备方法，其制备步骤包括：S1：半水石膏的获取；对电厂烟气脱硫产生的工业附属产物脱硫石膏进行烘干、破碎，获得细度为1800‑1900m2/kg的废弃石膏粉末，并加入细度为1400‑1500m2/kg的矿物掺料均匀混合后获得混合粉料，对上述混合粉料采用180‑185℃煅烧2‑3h，获得半水石膏；S2：改性KR脱硫粉制备；将钢厂铁水脱硫工序中采用KR搅拌法工艺产生的KR脱硫渣加入聚合物溶液均匀混合后，加入活性炭粉末和高强椰壳纤维，间断式搅拌1‑2h后，静置30min后，取出KR脱硫渣，自然晾干2‑2.5h，破碎后，获得细度为1000‑1200m2/kg的改性KR脱硫粉；本发明具有强度高的效果。
Preparation method and application of desulfurized building gypsum modified composite material
脱硫建筑石膏改性复合材料的制备方法及其应用
JIANG CHENGQIAN (author)
2023-12-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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