In the field of industrial equipment maintenance, the EPC (Engineering, Procurement, and Construction) model has emerged as a strategic solution for companies seeking to reduce costs and improve efficiency. Leveraging the integrated advantages of design, procurement, and construction, LEFILTER’s EPC project team recently completed a high-standard filter media replacement project for a 1250 high-speed filter in a steel rolling mill — setting a new benchmark in industrial maintenance services.
Project Background and Technical Challenges
The 1250 high-speed filter is a critical component of the steel plant's water treatment system. As the filter media aged, system efficiency declined, prompting the need for a professional upgrade. LEFILTER's EPC team stepped in with a comprehensive plan tailored to meet several technical challenges:
Precision Requirements: Each filter unit required the replacement of 580 filter nozzles and layered filling of quartz sand (4-8mm, height 1m) and anthracite (4-8mm, height 1.2m), demanding exact execution.
Multilateral Coordination: The project involved strict division of responsibilities between the plant and construction team, including acceptance of removed media and quality verification of new materials.
Green Construction Standards: Disposal of used media required full protection during transport to prevent environmental contamination while ensuring a swift equipment restart.
Full-Process Advantages of the EPC Model
1. Technical Design and Execution
Customized Design: Based on processing capacity (385 m³/h) and filtration area (9.62 m²), the team developed a precise filter media loading plan to ensure optimal efficiency and flow rate.
Strict Quality Control: All materials, including filter nozzles and quartz sand, came with quality certifications and passed random inspection by the plant.
Step-by-Step Acceptance: Old media was cleared and confirmed as residue-free, and new media was validated through water flow tests to ensure stable performance.
2. Efficient Construction Management
Clear Role Assignment: The plant provided utilities and base materials, while LEFILTER supplied tools, replaced filter nozzles, and handled end-to-end construction.
Eco-Friendly Operations: A professional team handled the used media, with dust-proof covers during transport and full cleanup post-construction.
On-Site Supervision: Key processes, including layered media filling and system flushing, were monitored closely to guarantee safety and accuracy.
3. Core EPC Benefits: Reliability and Speed
20% Shorter Timeline: With integrated planning and fewer communication gaps between departments, LEFILTER significantly accelerated project completion.
Efficient Resource Integration: The team used in-house tools and components, reducing the burden on the plant's logistics.
End-to-End Assurance: LEFILTER took full responsibility for test-run outcomes, ensuring smooth equipment restart and minimal downtime.
Through technological innovation and refined project management, LEFILTER's EPC team delivered a high-performance, environmentally responsible solution for industrial filtration maintenance. The successful completion of the steel plant project reflects not only technical excellence but also seamless team collaboration and strong commitment to sustainability.
