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Steel

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STEEL

Energy solutions for the industries that make steel.

Integrated steel plants generate substantial quantities of waste heat and by-product gases across their operations, creating significant opportunities for energy recovery. Since 1986, Thermal Systems has been delivering solutions that convert this untapped energy into useful steam and power across the steelmaking value chain—from DRI kilns,Blast furnaces and coke ovens to furnaces and captive power plants.

Introduction

Steelmaking is a chain of high-temperature processes, and each one leaves energy behind. Coke ovens carbonise coal at extreme high temperatures and vent hot flue gas or hot coke. Sponge iron kilns reduce ore at high temperatures and discharge dusty gas. Blast furnaces produce a lean gas that is the works’ fuel. Sinter coolers blow off hot air; converters and arc furnaces release gas in bursts at high temperatures. Plants that capture these streams run on their own power. We supply the waste heat boilers, fired boilers and turnkey power blocks that make the difference, and we have the most operating references in Indian steel and sponge iron.

What we bring

  • Waste heat recovery boilers for coke ovens, coke dry quenching, DRI kilns, sinter coolers and steelmaking furnaces, built for dust, abrasion and swinging gas
  • BFG fired boilers for blast furnace gas
  • AFBC and CFBC boilers for dolochar, coal fines and rejects
  • The hopper-bottom AFBC design we developed for dolochar firing in sponge iron complexes
  • Captive power plants on EPC: boiler, turbine and extended balance of plant as one package

Applications

  • Coke Oven Batteries
  • Coke Dry Quenching Plant
  • Blast Furnace
  • Steel Furnace / Steel Convertor
  • Sinter Plant
  • Oxy Claus Process
  • Captive Power Plant

Products

  • Waste Heat Recovery Boiler
  • BFG Fired Boiler
  • Lean Gas Fired Boiler
  • AFBC Based EPC

Services

  • FEED Engineering
  • System Engineering
  • Process Feasibility
  • Design & Manufacturing
  • Supply and E&C
(TPH)
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Pressure (kg/cm²)
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Temperature (°C)(°C)
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Installations
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01 / DRI
TPH capacity
0 +

112 kg/cm²

Pressure

540 °C

Temperature

Installations
0 +
02 / COKE OVEN
TPH capacity
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118 kg/cm²

Pressure

542 °C

Temperature

Boilers
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03 / CDQ
TPH per boiler
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68 kg/cm²

Pressure

500 °C

Temperature

Boilers
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Applications

Sponge Iron (DRI kilns)

DRI kiln exhaust gases at 900–1,100°C, with high dust loading and abrasive conditions. Waste heat recovery boilers designed for Natural or forced circulation designs, in-line or offset configurations, are tailored to plant requirements, backed by experience across more than 100 kilns.
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Coke Oven / CDQ

Flue gases from non-recovery coke oven batteries and hot inert gas streams from coke dry quenching plants.Waste heat recovery boilers designed for inline and offset configurations to suit plant layouts and operating requirements.
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Blast Furnace

Efficiently utilize low-calorific-value blast furnace gas to generate steam for captive power generation and industrial use.
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Sinter Plant Cooler

The hot section of the cooler's off-air, 250 to 400 °C, into a waste heat boiler.

Captive Power Plant

Integrated EPC solutions for AFBC-, CFBC- and waste heat-based power plants, including boilers, steam turbines and associated balance-of-plant systems, from engineering through commissioning.
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Furnace Recovery

Converter and arc furnace off-gas at over 1,200 °C, cooled in evaporative stacks and boilers into steam.

Sulphur Recovery Unit

Waste heat recovery solutions for sulphur recovery blocks in integrated steel and coke-making complexes, covering reaction furnace waste heat boilers, condensers and associated thermal equipment.
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