Environment-friendly sintering process for resource utilization of kiln slag
By adjusting the particle size and proportion of kiln slag in stages on the sintering production line, and combining it with alkaline flux and fuel, the risks of kiln slag occupying space and the environment have been solved, and the resource utilization of kiln slag and energy conservation and consumption reduction of sintered ore have been realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIHAI CHENGDE NICKEL IND CO LTD
- Filing Date
- 2026-05-21
- Publication Date
- 2026-07-17
AI Technical Summary
The slag accumulated in sintering plants occupies a large area and poses environmental risks such as heavy metal leaching and acid production from sulfide oxidation. Furthermore, existing treatment methods lack control over sulfur, phosphorus, and heavy metals, affecting resource utilization and environmental safety.
A staged, variable particle size, and variable ratio kiln slag addition process is implemented on a continuous sintering production line. Through daily batching, granulation, distribution, and sintering, the particle size and ratio of kiln slag are gradually adjusted. Combined with alkaline flux and fuel, the sintering process is optimized to achieve the resource utilization of kiln slag.
It effectively solves the risks of kiln slag occupying space and the environment, makes full use of the valuable components in kiln slag, improves the permeability of sintered ore, reduces coal consumption, and consolidates or removes sulfur and heavy metals, thereby realizing the resource utilization of solid waste and the energy conservation of sintering.
Smart Images
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