This is a waste gas sensible heat recovery system from sinter cooler to generate electric energy. The system is composed of dust collector, waste heat recovery boiler as steam, circulation fan and power generator by steam turbine.
The values of cost and effect are obtained from a system configuration of two identical sintering machines, coolers each equipped with waste heat recovery boiler and one unit of electric power generator, to which the steam from two boilers is led.
- Electricity savings: 22.1 kWh/t-sinter
- CO2 Reduction: 19.9 kg-CO2/t-sinter
- (for 395t/h sinter production capacity)
Reduction in crude oil equivalent: 32,500 toe/y
Unit recovery of waste heat is on the order of 60,000 kcal/t-sinter.
- JPY 5,000 million for 5.9Mt/y
- Payback time: 5.5years
The Japan Iron and Steel Federation