| 摘要 |
<p>PURPOSE: To effectively spend the energy of a coal material to the maximum limit, to largely reduce a coal material unit, to eliminate the trouble of a shelf- hanging, and to control the C quantity of melted metal by providing a movable valve for controlling the charging area of an iron source in the charging tube of an iron source disposed substantially at the central upper part of a vertical scrap melting furnace. CONSTITUTION: An iron source and coal material are charged in a vertical scrap melting furnace by shortening the time in which oxidative gas such as the air is brought into contact with the coal material 3 by charging the iron source at the center and the material 3 to be distributed at the periphery to substantially completely spend the energy of the material in the furnace, thereby reducing a coke unit. The charging sectional areas of the source 2 and the material 3 can be altered by a movable valve in the tube of the source, the coke unit can be regulated and the C quantity of the melted metal can be controlled. That is, the gas exhausted out of the furnace is mostly CO2 , and the latent heat discharged out of the furnace can be reduced.</p> |
