CASES

Application Case of Multi-Frequency Screen in Iron & Steel Sintering Production

1. Project Background

Sintering is a core pre-process of blast furnace ironmaking. Conventional linear vibrating screens widely used for sinter ore grading have obvious drawbacks: low screening efficiency, high return fines ratio, severe dust leakage, high energy consumption and heavy foundation load. Excessive fine powder (<5 mm) mixed into finished sinter ore increases return fines circulation, raises fuel and power costs, and restricts sinter output.

Multi-Frequency Screen X Series to replace traditional vibrating screens for finished sinter ore grading, aiming to cut return fines rate, lower comprehensive production cost and upgrade on-site environmental control.

2.Project Conclusion & Promotion Value

After 24-month continuous stable operation, the multi-frequency screen completely solved the long-standing pain points of sinter ore grading: high return fines, dust pollution and high energy consumption. For medium & large sinter plants, retrofitting multi-frequency screens brings triple benefits:

1. Economic: Sharp reduction of re-sintering cost and power consumption with short investment payback period.
2. Environmental: Achieve green metallurgy with fully enclosed dust-free screening.
3. Operational: Stable high-efficiency grading, low maintenance workload and less unplanned shutdown.

This case proves multi-frequency screen is an ideal upgrading solution for sinter finished ore, flux and raw material screening sections in iron & steel metallurgy.