In the boiler desulfurization system of a thermal power company in Wanzhou, Chongqing, limestone powder serves as a key desulfurization agent, and its conveying efficiency and stability directly affect desulfurization effectiveness and operating costs. The company's original conveying method relied on manual operation and simple machinery, which could no longer meet increasingly stringent environmental protection and capacity requirements.

Customer pain points

The company faces multiple challenges in the desulfurization powder transportation process:
1. Low manual feeding efficiency, high labor intensity, and easy powder scattering, resulting in raw material waste;
2. Severe dust flying on site not only affects the working environment but also poses occupational health and safety hazards;
3. The delivery volume cannot be precisely controlled, causing large fluctuations in desulfurizer dosage and affecting the stability of desulfurization effectiveness;
4. High equipment failure rate, frequent maintenance, and persistently high operating costs.

Solution

To address these pain points, Head Powder has customized a fully automatic powder pneumatic conveying system for the project. The system uses sealed pipeline conveyance, achieving fully automated control from the storage silo to the boiler desulfurization tower, with no need for manual intervention. It also comes with relatively accurate metering and variable frequency adjustment functions, allowing real-time adjustment of the conveying volume according to boiler load and supporting stable desulfurizer dosing. The system also integrates a pulse dust removal device, effectively suppressing dust leakage and improving the on-site environment.

Application Effects

After the project was implemented, the company's desulfurization powder conveying efficiency improved significantly, labor costs dropped by about 70%, powder loss was reduced to below 1%, and desulfurizer dosing deviation was controlled within ±2%. On-site dust concentration meets national occupational health standards, equipment operates stably, and maintenance intervals are extended to over six months. The overall desulfurization system operates more smoothly, and environmental emission indicators continue to meet standards.