可在线检修的含酸废水汽提装置及含酸废水的处理方法

By designing an online maintenance-enabled acidic wastewater stripping unit, and employing low-pressure steam stripping and multi-stage heat exchange technology, the corrosion and leakage problems of the acidic wastewater stripping unit were solved, enabling non-stop maintenance and efficient treatment of the entire unit, thus improving the system's reliability and economy.

CN122403544APending Publication Date: 2026-07-17CHINA ENERGY GRP NINGXIA COAL IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA ENERGY GRP NINGXIA COAL IND CO LTD
Filing Date
2026-04-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing acid stripping unit lacks online maintenance capabilities, resulting in low maintenance efficiency, easy corrosion and leakage, and affecting the stable operation and economic benefits of the unit.

Method used

Design an online maintenance-enabled acid wastewater stripping device, including a gas-liquid separation unit, a heat exchange unit, and a condensate stripping unit. Employ low-pressure steam stripping technology to achieve separation of the gas and liquid phases and utilization of heat. Configure multiple acid water preheaters and reflux tanks to support non-stop maintenance of the entire device.

Benefits of technology

It achieves effective treatment of acidic wastewater and utilization of heat, reduces unplanned downtime, lowers operation and maintenance costs, and improves system reliability and safety.

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Abstract

本发明涉及煤化工领域,公开了一种可在线检修的含酸废水汽提装置及含酸废水的处理方法,该装置包括:气液分离单元,用于含酸废水的气液分离;换热单元,包括酸气冷凝器、酸水回流罐、n个串联的酸水预热器和对应设置的n个酸水汽提回流罐;凝液汽提单元,包括凝液汽提塔,其中,所述气液分离单元的气相出口、所述酸水汽提回流罐的气相出口以及所述酸水回流罐的气相出口均分别与下游硫回收装置以及火炬系统连接,且分别在与所述下游硫回收装置连接的管线以及与火炬系统连接的管线上设置控制阀门。该装置可在不中断含酸废水处理的前提下,实现全装置不停车在线检修,实现运行可靠性、安全性和连续性的提升。
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