Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for utilizing stainless steel slag
The invention discloses a stainless steel slag utilization method, and relates to the technical field of solid waste comprehensive utilization, the method comprises the following steps: S1, material preparation: aging stainless steel tailings subjected to metal wet separation for 3-4 months, and adding standby materials into a storage tank; s2, material treatment: adding the stainless steel tailings and quick lime into a ball mill in proportion, and mixing and grinding the quick lime and the stainless steel tailings into a stainless steel cementing material; s3, material proportioning: preparing the following materials in percentage by weight: 30-40% of a stainless steel cementing material, 20-50% of fly ash, 0-35% of furnace slag, 0-35% of blast furnace granulated slag and 13% of water in terms of solid particles; the stainless steel slag tailings are used in the fly ash steam-cured brick, the freezing resistance of the prepared finished product is qualified after detection, the mass loss rate after freezing is less than or equal to 2%, the strength loss is less than or equal to 10%, and the content of hexavalent chromium is less than or equal to 10mg/L. The compressive strength grade can meet the MU10 grade requirement, the standard of JC/T239-2014 autoclaved fly ash brick is met, comprehensive cost reduction and energy consumption reduction are facilitated, and great significance can be generated for environmental protection.
本发明公开了一种不锈钢渣利用方法，涉及固废综合利用技术领域，包括以下步骤：S1、准备物料：将经过湿选金属后的不锈钢尾渣陈化3‑4个月，并且将备用物料加入储料罐内；S2、物料处理：将不锈钢尾渣与生石灰按比例加入球磨机，生石灰与其进行混磨成不锈钢胶结料；S3、物料比例：对物料配比制成，其中，不锈钢胶结料为30‑40％，粉煤灰20‑50％，炉渣0‑35％，高炉水渣0‑35％，水为固体颗粒的13％；本发明将不锈钢渣尾渣用于粉煤灰蒸养砖中，制备出的成品经过检测后抗冻性合格，冻后质量损失率≤2％，强度损失≤10％，六价铬含量≤10mg/L。抗压强度等级能满足MU10等级要求，符合JC/T239‑2014《蒸压粉煤灰砖》标准，既有利综合成本降低，降低能耗，又能对环境保护产生重大意义。
Method for utilizing stainless steel slag
The invention discloses a stainless steel slag utilization method, and relates to the technical field of solid waste comprehensive utilization, the method comprises the following steps: S1, material preparation: aging stainless steel tailings subjected to metal wet separation for 3-4 months, and adding standby materials into a storage tank; s2, material treatment: adding the stainless steel tailings and quick lime into a ball mill in proportion, and mixing and grinding the quick lime and the stainless steel tailings into a stainless steel cementing material; s3, material proportioning: preparing the following materials in percentage by weight: 30-40% of a stainless steel cementing material, 20-50% of fly ash, 0-35% of furnace slag, 0-35% of blast furnace granulated slag and 13% of water in terms of solid particles; the stainless steel slag tailings are used in the fly ash steam-cured brick, the freezing resistance of the prepared finished product is qualified after detection, the mass loss rate after freezing is less than or equal to 2%, the strength loss is less than or equal to 10%, and the content of hexavalent chromium is less than or equal to 10mg/L. The compressive strength grade can meet the MU10 grade requirement, the standard of JC/T239-2014 autoclaved fly ash brick is met, comprehensive cost reduction and energy consumption reduction are facilitated, and great significance can be generated for environmental protection.
本发明公开了一种不锈钢渣利用方法，涉及固废综合利用技术领域，包括以下步骤：S1、准备物料：将经过湿选金属后的不锈钢尾渣陈化3‑4个月，并且将备用物料加入储料罐内；S2、物料处理：将不锈钢尾渣与生石灰按比例加入球磨机，生石灰与其进行混磨成不锈钢胶结料；S3、物料比例：对物料配比制成，其中，不锈钢胶结料为30‑40％，粉煤灰20‑50％，炉渣0‑35％，高炉水渣0‑35％，水为固体颗粒的13％；本发明将不锈钢渣尾渣用于粉煤灰蒸养砖中，制备出的成品经过检测后抗冻性合格，冻后质量损失率≤2％，强度损失≤10％，六价铬含量≤10mg/L。抗压强度等级能满足MU10等级要求，符合JC/T239‑2014《蒸压粉煤灰砖》标准，既有利综合成本降低，降低能耗，又能对环境保护产生重大意义。
Method for utilizing stainless steel slag
一种不锈钢渣利用的方法
ZHANG MEIXIA (Autor:in) / LIU HUIJUN (Autor:in) / ZHANG HUIYUE (Autor:in) / ZHAO WEITING (Autor:in) / WANG ZHENG (Autor:in)
03.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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