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Drying-off of Two RHFs Built by CISDI for Handan Steel Bar & Wire Rod Mill
2011-01-15 11:11:39
Drying-off of Two RHFs Built by CISDI for Handan Steel Bar & Wire Rod Mill

January 12, 2011, reheating furnace for bar mill of Handan Steel, Hebei Steel Group was successfully drying-off under turnkey operation of CISDI. On January 30, 2011, the walking-beam bar mill RHF delivered the 1st heated billet, and matched with rolling mill for completing the process, which was satisfactory to the customer. On the same day, the walking-beam RHF for wire rod mill was drying-off.

          
Contract Signoff
Mar.12, 2010
Main Product & Specification
Bar: building bar, quality bar (quality carbon structural steel, alloy structural steel, spring steel, bearing steel, cold upset steel), specifications in Ф16~80mm
Wire-rod: plain carbon steel, quality carbon steel (quality carbon structural steel, welding wire, spring steel, bearing steel, cold upset steel), specifications in Φ5.0~22mm
Heating Capacity
Bar: 170t/h (800,000t/a)
Wire-rod: 150t/h (700,000t/a)
Annual Output
Bar: 833,330 t
Wire-rod: 729,160t
 
 Technological highlights for both RHFs are described as:
 ▲Side input and side output on roller table, hydraulic roller-type sloping-bench walking-beam reheating furnace;
 ▲Digital impulse combustion control for high-speed wire rod mill, 1st practice in China, favorable for improving furnace temperature control accuracy and flexibility, adapting to heating process for different steel grades;
 ▲ Low NOx burners used to reduce NOx emission;
 ▲Air pre-heater and steel super-heater in flue, recovering fume excess heat;
 ▲Evaporative cooling for beam and post, saving water, and recovering saturated steam herein to workshop steam pipeline;
 ▲Advanced L1 and L2 burning control system.
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