Energy saving plan for metal industries

The following table shows the energy saving technology for each facility in a steel plant
Plan	Equipment	Mechanical equipment and system technology
Manufacture of Pig iron	Combustion equipment	• Coke oven combustion equipment • Air heating furnace combustion equipment
	Collection of waste heat	• Coke dry quenching (CDQ) • Collection of exhaust gas heat in coke oven • Collection of coke oven furnace gas heat • Collection of heat from sinter cooler • Blast Furnace dry-type TRT • Heat collection of air heating furnace • Material drying preheating equipment
	Other Processes	• Pulverized coal injection (PCI) • Coal moisture control equipment • Dust collector speed control, or combustion blower
Steel making	Heat utilization equipment	• Arc furnace optimum electrical control system • Arc furnace electric pole variable speed drive hoisting equipment • Ladle refining optimum operation control system • Larger arc furnace transformer capacity
	Collection of waste heat	• Material preheating equipment for electric furnace
	Electrical Energy Saving	• Speed control of dust blower • High-speed electric hoisting control, furnace cover control
Rolling/ surface treatment	Collection of waste heat	• Boiler for waste heat utilization • Heat accumulation type regenerator
Rolling/ surface treatment	Electrical Energy Saving	• Speed control of auxiliary motor on main motor • Speed control of roll cooling water pump • Pressure control of de-scaling pump
Rod/ Shaping/ Fabrication	Heat utilization equipment	• Speed control of furnace blower
	Collection of waste heat	• Waste heat utilization • Collection of annealing exhaust gas heat
	Electrical Energy Saving	• Speed control of cooling fan motor for main motor • Speed control of roll cooling water pump • Change motor from DC to variable-speed AC
Other energy consumption plant	Cogeneration equipment	• Multiple-stage extraction steam turbine • Back pressure turbine
	Electric power use equipment	• Speed control of Fan or Pump • Power factor improvement equipment • High efficiency motor/ electric transformer
	Lighting system	• High efficiency lighting system * High frequency fluorescent lamp lighting

★Abstract from 「"Type 1 specified Business Operator" the guide for mid and long term scenario- (4) Steel plant」 - publication in Japan by ECCJ, Japan 1999 with TMEIC's amendments from electrical point of view.

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