Possibilities of Energy Recovery and Integrated Energy Supply of Foundries

摘要

The report deals with the possibilities of energy recovery and an integrated energy supply of foundry operations which are equipped with arc furnaces. The basis for these considerations are the heat balances of arc furnaces with conventional fp-lining and with water-cooled lining. It is shown that with the usual design of the cooling water loops, the systems for heating utility water and for heating buildings and halls, which are possible for induction furnaces and also applicable to arc furnaces. Furthermore, the possibility is pointed out of improving the economy of scrap-drying systems by preheating the combustion air. Finally, under the presupposition of a transition to pressurized water or evaporation cooling, possibilities are indicated for steam generation to feed into remote heating networks or operational steam networks, or to support steam generating systems by preheating the boiler feedwater.