一种钢渣处理方法
By controlling the grinding particle size and pH value of steel slag, combined with low-temperature stirring carbonization treatment, the problem of insufficient or excessive carbonization of steel slag in existing technologies has been solved, improving the safety and activity of steel slag in building materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUIZHOU CONSTR SCI RES & DESIGN INST OF CSCEC
- Filing Date
- 2023-07-07
- Publication Date
- 2026-07-17
AI Technical Summary
Existing steel slag carbonization technologies are characterized by high costs, difficulty in achieving feasibility, and the inability to directly control carbonization rate and active material consumption rate, leading to safety hazards and insufficient activity of steel slag in building materials applications.
The steel slag is first ground to d(50)≤15μm to form a suspension, which is then heated and stirred at 10℃-50℃. The reaction is terminated by controlling the pH value within the range of 10.0-11.0. Subsequently, it is ground a second time to d(50)≤5μm to ensure the full carbonization of f-CaO and the retention of active components.
It enables intuitive control over the degree of carbonization and consumption of active substances in steel slag, avoiding insufficient or excessive carbonization, and ensuring that steel slag has good mechanical activity and stability in building materials.
Smart Images
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