Walking Hearth Reheating Furnace

Walking Hearth Reheating Furnace - Advanced Industrial Steel Heating Solution for Strong Surface Quality and Energy Efficiency

JIANGSU YINUO THERMAL ENERGY TECHNOLOGY CO., LTD builds Walking Hearth Reheating Furnace systems for industrial use. Hot rolling mills that need a clean surface and tight temperature control count on them. Our plant covers 20,000㎡, holds 80 million yuan in fixed assets, and keeps more than 100 technical professionals on staff. From that base we supply thermal processing solutions that hold up in daily service. Slabs heat at rates up to 350 t/h. Standard billets reach 200 t/h. Temperature inside the furnace stays between 1150–1250°C. Energy use comes to ≤1.05 GJ/t steel, and oxidation burning loss stays under 0.9%.

Why Choose Our furnace?

Clean surfaces and room to adapt matter in your steel operation. Neither one is a nice extra. Inside our furnace, a mechanical system handles the load. Fixed hearth sections and moving ones take turns. They lift each workpiece and carry it forward. Then they set it down again. No surface contact happens along the way.

Scratches and black oxide marks show up all the time on old pusher furnaces. Here they do not appear. A gap stays open between workpieces, so heat reaches every surface at the same rate. That fixes the "bottom chill" problem, the one that keeps pulling product quality down.

Unlike conventional systems limited by pusher charging ratios, our design accommodates unlimited effective furnace length. You can heat thin blanks and various raw materials with complete flexibility. The reserved gaps between billets allow electrode withdrawal according to your production demands, significantly reducing furnace heating-up time during startups.

Full automatic operation comes from precise positioning control. Coordination with downstream rolling mills happens without anyone stepping in by hand. Say production stalls. The furnace then switches to soaking mode. It holds the temperature there, and that keeps grain growth and heavy scaling in check.

Technical Specifications

Core Performance Advantages

The Walking Hearth Reheating Furnace we build brings gains you can measure in day to day operation. Billets heat flexibly, and every zone ends up at an even temperature. That way your products hold to tight metallurgical specs.

Better surface quality shows up right away. Workpieces leave the furnace free of scratches and skid marks. No surface decarburization either, the kind that would hurt downstream processing. This counts most when you run specialty alloys for wire rod or seamless pipe.

Every part of the design saves energy. Waste heat recovery reaches up to 30% with regenerative combustion technology. That cuts your fuel bill. Heat loss through furnace walls drops thanks to high-alumina refractory linings.

Each workpiece gets its own tracking from the Level 2 automation system. Several steel grades can run at the same time. For each grade, the system sets walking speed and zone temperatures to match the thermal curve it needs.

Industrial Applications for Walking Hearth Reheating Furnace

Heavy plate producers utilize our furnace to heat massive slabs weighing up to 30 tons. The walking mechanism handles extreme loads while maintaining precise longitudinal temperature profiles essential for uniform plate properties.

Exact plasticity control helps makers of pipe with no welded seam. Billets must reach set temperatures for piercing mills. Variable residence times handle shifts in mill pace and stop material from overheating.

Wire rod and bar mills run specialty alloys through a Walking Hearth Reheating Furnace for heating, and here surface defects are simply not acceptable. Air-fuel ratios stay where they should be thanks to our atmosphere control system. Oxide scale gets cut down as a result. Less scale means downstream drawing operations are not held up.

FAQ

Q: How does the furnace keep surface quality the same from part to part?

A: Nothing on the workpiece touches the hearth surface, since the walking mechanism lifts it clear. On top of that, the atmosphere is held slightly reducing through tight control. Mechanical damage is avoided this way, and so is too much oxidation.

Q: What maintenance schedule should we expect?

A: A full inspection once a year is what we advise. Burner tiles get a smaller preventive check every six months. That keeps the flame geometry where it should be and adds life to the refractory.

Q: Can we handle production interruptions efficiently?

A: Yes. If the mill has a delay, the automated system cuts fuel input on its own. Temperature stays steady. You get less scale and less grain growth. Pulling the electrodes back is another option. It shortens restart time.

Q: How is energy performance verified?

A: Specific Fuel Consumption (SFC) is measured in GJ/ton of heated steel. Our 72-hour performance guarantee tests show the actual consumption. They run under your operating conditions.

Q: Does the system fit the infrastructure we already have?

A: Our engineers build setups that match your plant layout, the fuel you use, and your automation needs. Loading and unloading setups can be changed too. We also link them to the control systems already in your mill.

Your Trusted Industrial Heating Partner

Ready to eliminate surface defects and reduce energy costs? Contact our technical team at info@yinuofurnaces.com to discuss your specific Walking Hearth Reheating Furnace heating requirements and production goals.