A fly ash high-temperature melting calcination system and method

By installing cooling water pipe support grids inside the fly ash calcining furnace, combined with water temperature sensors and calculation correction coefficients, the problem of accurately obtaining the radial temperature distribution inside the calcining furnace was solved, improving the melting effect and equipment lifespan.

CN122408446APending Publication Date: 2026-07-17SHAOXING UNIV YUANPEI COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHAOXING UNIV YUANPEI COLLEGE
Filing Date
2026-03-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing fly ash calcination furnaces cannot accurately obtain the radial temperature distribution within the furnace cavity, resulting in excessive temperature fluctuations that affect melting efficiency and equipment lifespan.

Method used

A support grid is installed inside the calcining furnace. The support grid consists of several cooling water pipes. Cooling water with constant temperature and flow is input through the cooling water pipes. The furnace temperature is obtained in conjunction with a water temperature sensor, and the radial temperature distribution is obtained by calculation and correction coefficients.

Benefits of technology

It enables accurate monitoring of the radial temperature inside the calcining furnace, avoids damage to the support grid, extends equipment life, and improves the stability of the melting effect.

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Abstract

The application discloses a fly ash high-temperature melting calcination system and method, which comprises a calcination furnace, a support fence is arranged in a calcination area of the calcination furnace, and the support fence comprises a plurality of cooling water pipes; each cooling water pipe penetrates through both sides of the furnace body in the horizontal direction and is arranged in parallel and at equal distances; the system further comprises a cooling water supply assembly which is used for supplying constant-temperature and constant-flow cooling water to the input end of the cooling water pipe; a water temperature sensor is arranged at the output end of each cooling water pipe, each water temperature sensor can acquire the temperature of the cooling water at the output end of each cooling water pipe, and the water temperature difference between the input end and the output end of the cooling water pipe can be used to acquire the furnace temperature in the calcination furnace.
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