Corrosion-resistant castable for waste incinerator and preparation method thereof

CN118026705BActive Publication Date: 2026-07-14ANHUI RUITAI NEW MATERIALS TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI RUITAI NEW MATERIALS TECH
Filing Date
2023-12-29
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Waste incinerators are prone to problems such as ash accumulation, wear, and corrosion during the processing process. In particular, CO erosion can cause the furnace lining to crack, and the high-temperature movement of waste can cause wear and thermal shock to the incinerator parts. Existing castables are difficult to effectively solve these problems.

Method used

Using raw materials such as mullite, silicon carbide, modified fibers, modified silica powder, and pure calcium aluminate cement, the wear and corrosion resistance of the material is enhanced by modifying the fibers and silica powder. The modified fibers are grown with chromium oxide and zirconium oxide on the fiber surface through a stepwise solvothermal method. The modified silica powder catalyzes the conversion of CO to CO2, filling the voids in the castable and improving its density.

Benefits of technology

The prepared castable has excellent wear and corrosion resistance, which can effectively prevent furnace lining cracking caused by CO erosion and improve the safe and stable operation of the incinerator.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides an erosion-resistant castable for a garbage incinerator and a preparation method thereof, and relates to the technical field of castables.The erosion-resistant castable for the garbage incinerator comprises the following raw materials in parts by weight: 25-40 parts of mullite, 8-15 parts of silicon carbide, 3-10 parts of modified fiber, 3-10 parts of modified silicon powder, 3-8 parts of pure calcium aluminate cement and 0.1-0.5 parts of water reducing agent.The preparation method of the erosion-resistant castable for the garbage incinerator is simple in process, and the obtained castable has excellent wear resistance and erosion resistance.
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