Method for preparing ceramsite by using municipal solid waste and steel plant solid waste and ceramsite

The process of preparing lightweight ceramsite from municipal solid waste and steel plant solid waste through firing solves the problem of treating municipal solid waste and steel plant solid waste, realizes the synergistic utilization of resources and environmental protection, and has significant environmental and economic benefits.

CN122167186APending Publication Date: 2026-06-09BAOSHAN IRON & STEEL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BAOSHAN IRON & STEEL CO LTD
Filing Date
2024-12-06
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In the existing technology, the treatment and utilization of inorganic waste, slag, desulfurization ash, oily sludge, and desiliconization cake from municipal solid waste and steel plant solid waste are difficult, resulting in environmental pollution and resource waste, and the treatment cost is high with low added value.

Method used

Lightweight ceramsite is prepared by using fine slag and biogas residue from municipal solid waste as the main materials, and desulfurization ash, oily sludge, and desiliconized mud cake from steel plant solid waste as auxiliary materials, through a firing process, so as to achieve the synergistic treatment and utilization of resources.

Benefits of technology

It has enabled the safe disposal and resource utilization of urban domestic waste and steel plant solid waste, reduced the cost of harmless waste disposal, reduced the production cost of ceramsite, and protected the ecological environment, thus having significant environmental and economic benefits.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a method for preparing ceramsite using municipal solid waste and steel plant solid waste, and the ceramsite itself. The raw materials, by dry weight percentage, are: 30%–50% fine slag, 10%–30% biogas residue, 5%–25% desulfurization ash, 5%–15% oily sludge, and 5%–15% desilication cake. This invention also provides a method for preparing ceramsite using municipal solid waste and steel plant solid waste, using municipal solid waste as the main material and steel plant solid waste as an auxiliary material to co-fire lightweight ceramsite. This not only achieves the co-processing and resource utilization of municipal solid waste and steel plant solid waste, reducing the cost of harmless waste disposal, but also reduces the production cost of ceramsite plants and the demand for natural clay.
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