Waste Heat Recovery System
Blast Furnace (Stoves).
Eastern designs and manufactures custom waste heat recovery systems for blast furnace stoves also known as hot blast stoves or Cowper stoves. In iron and steelmaking plants, blast furnace stoves preheat the incoming air blast to temperatures above 1,000°C before it enters the furnace hearth. However, large volumes of low-calorific Blast Furnace Gas (BFG) are generated in this process and without an efficient heat recovery system, that energy goes to waste. Eastern’s stove heat exchangers recover thermal energy from both preheated air and BFG simultaneously, increasing dome temperature, improving blast efficiency, and reducing overall plant energy costs. Trusted by Vedanta Sesa Goa, Electrosteel Steels, and Jayaswal Neco Industries, Eastern supplies proven blast furnace heat recovery systems to integrated steel plants across India and worldwide.
- Preheats both air & Blast Furnace Gas.
- Increased dome temperature.
- Compact Construction.
- Zero Maintanence
- Easy Cleaning
How Eastern’s Systems Recover Heat from Furnace Stoves
In a blast furnace stove system, the hot blast stove absorbs heat during the combustion phase and releases it to the incoming cold blast during the blasting phase. This cycle runs continuously and each phase generates recoverable thermal energy that most plants leave untapped.
Eastern’s heat exchangers intercept hot gases during both phases. They capture heat from the outgoing combustion gases and use it to preheat the incoming cold blast and BFG supply. As a result, dome temperatures rise, the furnace hearth receives a higher and more stable hot blast temperature, and fuel consumption across the stove circuit drops significantly. Furthermore, compact construction and zero-maintenance design mean the system runs continuously without disruption to the production cycle.
Why Steel Plants Choose Eastern for Blast Furnace Heat Recovery
Eastern engineers each heat recovery system specifically for your stove design, BFG composition, blast volume, and dome temperature targets. Because stove configurations and gas quality vary significantly between integrated steel plants, Eastern custom-builds every unit rather than supplying standard off-the-shelf systems. In addition, Eastern factory-insulates every unit and designs it for easy cleaning minimising maintenance downtime in a critical production circuit.
Our stove heat exchangers deliver:
- Simultaneous preheating of air and BFG for maximum energy recovery
- Increased dome temperature for higher hot blast quality
- Compact construction suitable for constrained plant layouts
- Zero maintenance design for continuous, uninterrupted operation
- Easy cleaning access to maintain long-term performance
Furthermore, Eastern provides complete installation support and after-sales service throughout the system’s life. Eastern manufactures every heat exchanger at our ISO 9001:2015-certified facility in Kolkata, meeting international standards for steel plant applications. Our systems also support the energy efficiency benchmarks set by the Bureau of Energy Efficiency, Government of India. To find the right system for your stoves, calculate your recuperator using our free online tool.
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