Preparation method of cement clinker based on fluorite

By controlling the particle size and dosage of fluorite, combined with raw material co-grinding and rapid cooling processes, the problems of high energy consumption and insufficient strength in cement clinker production have been solved, achieving energy saving, consumption reduction and performance improvement, and extending the kiln life.

CN122167049APending Publication Date: 2026-06-09ZAOZHUANG ZHONGLIAN CEMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZAOZHUANG ZHONGLIAN CEMENT CO LTD
Filing Date
2026-03-30
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing cement clinker production suffers from problems such as high energy consumption, insufficient clinker strength, high outlet temperature of the cooler, and severe kiln corrosion. The improper application of fluorite mineralizers leads to uneven mixing and inaccurate dosage control, affecting production efficiency and product quality.

Method used

A three-stage crushing and screening process is adopted to control the particle size of fluorite. Fluorite and raw materials are ground together, and the admixture is dynamically adjusted. Cement clinker is prepared through a rapid cooling process to ensure that fluorite is uniformly dispersed in the raw material system, generating eutectic compounds, reducing the sintering temperature, avoiding C3S decomposition, and improving strength.

Benefits of technology

Significantly reduces production energy consumption, increases clinker strength, extends kiln life, meets market demand, and achieves energy conservation, consumption reduction, and performance improvement.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention proposes a method for preparing cement clinker based on fluorite, belonging to the field of cement production technology. Through steps such as fluorite raw material pretreatment and particle size classification, co-grinding of fluorite and raw meal, dynamic adjustment of fluorite admixture, clinker firing, and rapid cooling to obtain the finished product, fluorite is uniformly dispersed in the raw meal system, stably exerting its mineralization effect. This can reduce the liquidus appearance temperature by 50-80℃, reduce the clinker sintering temperature by 50-100℃, significantly promote the formation and development of core strength minerals such as C3S, shorten the clinker firing time, and improve the production efficiency of the kiln system.
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