Method for off-gas filtration and purification for scrap copper recovery
By generating exhaust gas load indicators to adjust the intake volume, performing pressure stabilization and settling, cyclone washing and dry-wet separation, and when the threshold is exceeded, the gas is returned to the cyclone washing inlet side, the dry filter channel is switched and backflushing is performed to clean the dust, thus solving the channel blockage problem caused by load fluctuations in the exhaust gas treatment of waste copper recycling, and achieving stability and high efficiency in exhaust gas treatment.
CN122399484APending Publication Date: 2026-07-17SHENZHEN JINGHENGYU ENVIRONMENTAL TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENZHEN JINGHENGYU ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2026-06-08
- Publication Date
- 2026-07-17
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Figure CN122399484A_ABST
Abstract
本申请提出了一种用于废铜回收的废气过滤净化方法，获取废铜回收工段产生的待处理废气，采集粉尘负荷、酸雾负荷和含湿负荷，生成包含废气来源的废气负荷标识；依据废气负荷标识调节对应来源的进气量，并使待处理废气依次经稳压沉降、旋流洗涤和干湿分离处理；检测干湿分离后的湿度值和酸雾残留值，满足阈值时送入当前干式过滤通道，超阈值时回流至旋流洗涤处理的入口侧并降低对应来源的进气量；在当前干式过滤通道的通道压差达到预设压差阈值时切换至备用干式过滤通道并反吹清灰；对干式过滤后的废气执行深度净化处理，根据排气检测结果确定排放或回流，并将回流原因写入废气负荷标识。有利于提高废铜回收废气在负荷波动工况下的净化连续性。
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