Chongqing Desulfurization Hydrated Lime Closed Conveying Case

Case Study Overview

This case examines a desulfurization hydrated lime closed conveying project implemented in Chongqing. The system was designed to address specific challenges in handling fine, reactive lime powder within a power generation facility. Headpowder provided a tailored solution to improve operational safety and material integrity.

Customer Challenges

The customer faced several critical issues with their existing open conveying method. Airborne lime dust caused frequent equipment corrosion and created hazardous working conditions for operators. Material spillage along the conveyor path led to significant product loss and required constant manual cleanup. The open system also allowed moisture ingress, which degraded the hydrated lime quality and reduced its effectiveness in the desulfurization process. Maintenance downtime was high due to clogging and wear on exposed components.

Solution Delivered

Headpowder implemented a fully enclosed pneumatic conveying system specifically engineered for hydrated lime. The solution uses a closed-loop design that prevents dust emission and protects the material from environmental contamination. A controlled low-velocity air stream moves the lime through sealed pipes, minimizing particle degradation and energy consumption. Automated pressure and flow sensors ensure consistent delivery to the desulfurization unit. The system includes self-cleaning filter receivers and a centralized control interface, allowing operators to monitor and adjust parameters remotely. This design effectively eliminated dust leakage, reduced material waste by over 90%, and cut maintenance intervals by half.