Acid Mist Treatment System Upgrade – Shanghai Zhenhua Heavy Industries (ZPMC)
Client: Shanghai Zhenhua Heavy Industries Co., Ltd. (ZPMC)
Industry: Port Machinery, Marine Engineering & Steel Structures
The Challenge:
ZPMC's hot-dip galvanizing workshop faced critical equipment degradation in its acid mist treatment system:
1. The acid mist spray tower's water tank and exhaust elbow showed severe corrosion, perforation, and water leakage due to material aging, compromising sealing performance and structural integrity.
2. The associated acid storage tank had been in service for nearly 15 years, with advanced corrosion creating significant leakage and safety risks.
3. These issues threatened production safety, environmental compliance, and operational continuity under China's stringent emission regulations.
Our Solution:
Chaori delivered a comprehensive renewal and targeted overhaul of the galvanizing workshop's acid mist control system:
1. Full replacement of the corroded spray tower components, including water tank and exhaust ducting, using corrosion-resistant materials engineered for acidic environments;
2. Installation of a new acid storage tank with enhanced structural design and leak-prevention features;
3. System integration to restore optimal spray tower performance, ensuring efficient acid mist capture and neutralization;
4. Engineering support to align the upgraded system with national environmental discharge standards and long-term operational reliability.
Results Delivered:
1. Elimination of corrosion-induced leakage and structural safety hazards in the acid mist treatment system.
2. Restored and enhanced spray tower efficiency, ensuring stable acid mist removal and compliant exhaust emissions.
3. Mitigated acid storage risks, protecting personnel safety and preventing environmental incidents.
4. Full alignment with national environmental regulations, supporting ZPMC's green manufacturing commitments.
5. Extended service life of critical pollution control assets with minimal future maintenance burden.
