一种利用熔渣余热的风淬渣低腐蚀改性方法及其应用

By utilizing the residual heat of molten slag during the air quenching granulation process and modifying it with a mixed solution of sodium carbonate and sodium sulfate, the problems of high energy consumption and insufficient activity in steel slag treatment are solved, achieving efficient and low-corrosion modification of air-quenched slag and enhancing its application in high-performance cementitious materials.

CN122189254BActive Publication Date: 2026-07-17JIANGSU SHAGANG GROUP CO LTD +2

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU SHAGANG GROUP CO LTD
Filing Date
2026-05-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing steel slag treatment technologies fail to effectively utilize the waste heat of molten slag, resulting in high energy consumption and insufficient cementing activity of air-quenched slag, which limits its high-value utilization.

Method used

By utilizing the residual heat of molten slag during the air quenching granulation process, and using a mixed solution of sodium carbonate and sodium sulfate as a modifier, the slag drips into the slag collection pool for secondary modification after the first modification. Combined with the modification device, efficient and low-corrosion modification is achieved.

Benefits of technology

It significantly enhances the cementitious activity of air-quenched slag, reduces external energy consumption, extends equipment life, increases product added value, and enables the application of high-performance cementitious materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明提供了一种利用熔渣余热的风淬渣低腐蚀改性方法及其应用,具体包括如下步骤:S1、使温度为1400~1600℃的液态熔渣形成下落渣流;S2、将改性剂溶液以气液混合形式喷射至渣流中,将其破碎成渣滴,并利用渣滴自身余热进行一次改性;S3、将一次改性后的渣滴落入预置有改性剂溶液的集渣池内,令渣滴冷却粒化、并在自带余热环境下进行二次改性,获得改性风淬渣。本发明高效回收利用了熔渣的余热,将其作为改性反应的驱动力,在提升活性的同时,降低改性过程的外部能源消耗,实现节能降耗,显著提升改性风淬渣的胶凝活性,使其能够作为高活性组分直接掺入矿粉中,不仅能够有效提高矿粉的总体活性指数,还能替代部分价格更高的矿粉。
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