Environmental Pre-Heating & Continuous Charging System
CVS MAKINA has a cooperation with KR Tec GmbH which developes a New Generation Concept in Arc Furnace Steelmaking.

Idea behind the challenge is to recover the heat lost to FTP system by the application of Scrap Preheating.

The EPC System combines the advantages of the preheating efficiency of the chamber and the continuous scrap feeding.

The EPC System is a new generation of economical arc furnace.

EPC system overcomes all the missing items of the existing Preheating system.

Furthermore, the design has been considerably simplified to increase the reliability and the profitability of the investment, reducing the ROI by less than 12 months.

ADVANTAGES

	100kwh/t Energy Saving
	20% Increasıng Productivity
	Independent Scrap Charging
	Minimum Dust Emission
	Higher Return On Investment

FEATURES

	Flat Bath Operation
	Controlled Scrap Feeding Rate
	Charging During Power On
	Controlled Preheating Temperature
	Complete Airtight System

One of the issues of the EPC System is to charge the scrap independent of the electric arc furnace taken into consideration the environmental aspects.

The EPC System is installed beside the EAF and the preheated scrap can be charged continuously by the telescopic feeder system in the melting chamber during Power On.

Even during charging of the scrap basket into the EPC System, the system is always airtight and a small amount of dust can only escape. Furthermore, the design has been considerably simplified to increase the reliability and the profitability of the investment, reducing the ROI by less than 12 months.

How The System Works
The scrap basket will be charged into a drawer of the EPC system which is in waiting position.

While this position the front wall of the drawer is closing the preheating chamber and the melting process in the EAF and preheating doesn`t have to be interrupted.

After filling of the drawer by the scrap basket a slide gate on top of the EPC System will be closed.

Than the drawer will be forwarded by hydraulic cylinders to the preheating chamber and the scrap falls smoothly inside the pre-heating chamber where it will be preheated.

If the drawer is in front position, the back wall of it, is closing to the pre-heating chamber. A special design of the off gas duct together with a water cooled regulation flap allows to control the preheating effect in the pre-heating chamber.