METHOD OF OPERATING HEATING FURNACE

摘要

PROBLEM TO BE SOLVED: To provide a method of utilizing waste plastic as a fuel for heating a workpiece to be heated such as a lump of steel, steel materials, and forging. SOLUTION: An operation method of a heating furnace is provided, in which a workpiece W to be heated is heated by blowing oxygen, air or oxygen rich air 4 together with waste plastic particles 3 into a heating furnace such as a metal heating furnace 1 from a nozzle 2.