一种基于相变介质循环的蒸汽冷凝余热回收装置及方法

By designing a cascade heat exchange module and a water collection tank, the problems of low thermal energy utilization efficiency and low resource recycling rate in the high-temperature exhaust gas treatment of fertilizer granulation dryers are solved, achieving efficient and energy-saving exhaust gas treatment and resource recycling.

CN122408520APending Publication Date: 2026-07-17XINJIANG SUFENG BIOTECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XINJIANG SUFENG BIOTECHNOLOGY CO LTD
Filing Date
2026-05-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the high-temperature exhaust gas treatment of fertilizer granulation dryers suffers from problems such as low thermal energy utilization efficiency, serious energy waste, low resource recycling rate, bottlenecks in dust removal and cooling efficiency, and serious raw material loss.

Method used

A steam condensation waste heat recovery device based on phase change medium circulation is adopted, including a cascade heat exchange module, a closed-loop circulation module and an intelligent control unit. Through the combined design of cyclone dust collector, tubular heat exchanger, venturi tube and scrubbing tower, the cascade utilization of waste gas heat and the resource recycling of wastewater are realized, combined with the treatment of the collection tank with temperature and pH adjustment.

Benefits of technology

It improved the overall heat recovery rate, reduced the workload of the scrubbing tower, increased the raw material recovery rate, reduced energy consumption and wastewater discharge, and achieved efficient energy-saving treatment of waste gas and effective utilization of resources.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明属于废气处理技术领域,具体涉及一种基于相变介质循环的蒸汽冷凝余热回收装置,包括梯级换热模块;由造粒烘干机产生的含尘高温废气通过密封管道导入旋风除尘设备,所述管式换热器的蒸发段通过引风机连通旋风除尘设备的废气出口,冷凝段连通热风炉的新风进口,利用高温废气余热预热进入热风炉的新风;经换热后的废气进入文丘里管,在与喷淋水雾混合后进入洗涤塔的内部,所述文丘里管与洗涤塔的出水口均通过入水管连接集水池,将含杂热水转化为工艺补水用于溶解肥料原料。本发明能够提升综合热回收率,降低洗涤塔工作负荷,并提高原料回收率,提供的集水池集沉淀与pH调节为一体,同时具有保温和调温的功能。
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