A method for evaluating the activity of slag micron powder based on alkali dissolution

The method of directly determining the activity of slag powder by alkaline dissolution solves the problems of long cycle, poor accuracy and high cost in the evaluation of slag powder activity in mining engineering, and realizes rapid and accurate screening of slag powder, which is suitable for real-time detection in mining sites.

CN122193518BActive Publication Date: 2026-07-17SICHUAN ZHANTAIJIN TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SICHUAN ZHANTAIJIN TECHNOLOGY CO LTD
Filing Date
2026-05-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies in the field of mining engineering materials, such as the evaluation method for the activity of slag powder, are time-consuming, inefficient, have poor accuracy and engineering adaptability, are complex to operate and costly, and are difficult to meet the real-time needs of mine backfilling projects with multiple batches of raw materials and urgent screening.

Method used

The alkaline dissolution method is adopted, which involves dissolving slag powder with a mixed alkaline reagent and treating the residue with a terminator. The correlation between the activity level and the amount of dissolved powder is established, and the activity of slag powder is directly measured, which simplifies the operation process and reduces equipment requirements.

Benefits of technology

It significantly shortens the evaluation cycle to within 2 hours, improves evaluation accuracy and engineering adaptability, reduces costs, adapts to rapid screening at mining sites, and reduces the risk of raw material misselection.

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Abstract

This invention belongs to the field of mining engineering materials, specifically relating to a method for evaluating the activity of slag micronized powder based on alkali dissolution. The method first prepares an alkaline solution using an alkaline reagent and deionized water. A "activity grade - solubility" correspondence is constructed using mineral powders with known activity grades. The mineral powder to be tested is then dissolved, the reaction is terminated, filtered, and the residue is dried and weighed to obtain the solubility. Substituting this into the correspondence yields the activity grade. This method is simple to operate, has a short cycle time (completed within 2 hours), and an accuracy rate exceeding 96%. It requires no large precision instruments, is suitable for mining site scenarios, and solves the problems of low efficiency, high cost, and insufficient accuracy of traditional methods. It is applicable to the rapid screening of raw materials for mine backfilling projects.
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