A Corrosion-Resistant Centrifuge Solution for CPE Production
At a chlorinated polyethylene (CPE) production facility in Hubei Province, Huada PLD1600HF bag-pulling automatic bottom discharge centrifuges are used for the solid-liquid separation of granular CPE materials in a highly corrosive hydrochloric acid environment.
Project Requirements
The process material contains hydrochloric acid at a concentration of approximately 23% to 28%. In addition to stable separation performance, the centrifuge must provide reliable corrosion resistance, effective sealing and sufficient structural strength for long-term chemical production.
Selected Equipment
Huada selected the PLD1600HF bag-pulling automatic bottom discharge centrifuge for this application.
The machine combines automatic filtration, washing, dewatering, scraper discharge and residual cake removal in a controlled batch process. Its enclosed structure is suitable for demanding chemical production environments.
Corrosion-Resistant Configuration
To accommodate granular CPE materials and concentrated hydrochloric acid, Huada upgraded multiple sealing assemblies and optimized several structural components of the centrifuge.
Key configuration features include:
- 304 stainless steel surfaces protected with imported Daikin F30 polymer coating
- Zirconium alloy components in areas requiring both mechanical strength and resistance to hydrochloric acid
- Fluoroplastic materials applied to selected non-metallic components
- Sintered ceramic technology used in critical main-shaft components
- Optimized sealing arrangements for corrosive operating conditions
- Hydraulic control and automatic scraper discharge
The combination of metallic and non-metallic corrosion-resistant materials helps protect critical components while maintaining the mechanical performance required during production.
Verified Operating Performance
Under actual operating conditions, the PLD1600HF centrifuge achieves:
- Solid output per batch: approximately 500 kg
- Single operating cycle: approximately 15 minutes
- Stable solid-liquid separation
- Automatic and controlled cake discharge
- Reliable operation in a high-concentration hydrochloric acid environment
Engineering Value
For chemical manufacturers, separation equipment must do more than complete a single filtration cycle. It must also withstand repeated operation, corrosive materials and demanding production conditions.
From basket structure and scraper discharge to hydraulic control, sealing and material selection, the PLD1600HF was configured around the customer’s actual CPE process.
Huada Service Support
Huada service engineer Wang Changrui conducted on-site inspection and service support for this project.
Huada provides process-oriented centrifuge selection, corrosion-resistant configuration, commissioning and lifecycle service for chemical, pharmaceutical and new energy applications.
Discuss Your Separation Process
Are you processing CPE or another corrosive chemical material?
Share your material, acid concentration, batch capacity and separation target with Huada. Our engineers will help identify a suitable centrifuge configuration.