Dual-spiral microcrystalline quencher and cement kiln tail gas chamber chlorine removal system

The design of the dual-cyclone microcrystalline quencher enables uniform mixing of hot and cold air, inhibits crusting, improves dechlorination efficiency, solves the problem of crusting and blockage caused by chlorine enrichment in cement production, and ensures production stability and product quality.

CN122360150APending Publication Date: 2026-07-10ANHUI CONCH DESIGN & RES INST OF BUILDING MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ANHUI CONCH DESIGN & RES INST OF BUILDING MATERIALS CO LTD
Filing Date
2026-05-19
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In existing cement production processes, chlorine accumulates in the kiln tail flue, preheater, and waste heat power generation system, leading to crusting and blockage, reduced dechlorination efficiency, and impact on production stability. Furthermore, traditional bypass ventilation processes suffer from uneven mixing of hot and cold air and are prone to crusting.

Method used

The device employs a dual-cyclone microcrystalline quencher, which creates an interactive flow field by setting up a vortex-type cold air inlet and a hot air inlet. Combined with a microcrystalline material layer, a casting material layer, and a nano-insulation material layer, it achieves uniform mixing of cold and hot air, suppresses condensation in low-temperature areas, reduces the probability of skin formation, and is equipped with a material-cleaning hole and an air cannon for cleaning.

Benefits of technology

It improves dechlorination efficiency, reduces the frequency of crust formation, lowers system heat loss and dust emissions, ensures production stability, avoids chlorine cycling, and improves cement clinker quality and equipment lifespan.

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Abstract

The present application relates to cement chlorine removal equipment technical field, disclose a kind of double spiral microcrystalline quenching device and cement kiln tail flue gas chamber chlorine removal system.The double spiral microcrystalline quenching device includes quenching device body (4), the hot air inlet (5) is equipped on the quenching device body (4), air outlet (6), cold air inlet (7) and poking hole (8);Wherein, the cold air inlet (7) is at least two and is set to vortex type air inlet structure, to make cold air with rotational flow way enter the quenching device body (4) inside and the high-temperature flue gas entered from the hot air inlet (5) form spiral rising mixed gas flow;The inner wall of the quenching device body (4) is sequentially provided with microcrystalline material layer (1), castable layer (2) and heat insulation material layer (3) from inside to outside.It can uniformly mix cold and hot air, reduce the risk of skinning, reduce the frequency of artificial skinning, greatly improve the efficiency of chlorine removal system.
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