Method of making steel using scrap together with hot metal as well as a charging apparatus for charging scrap into a steel making furnace

Claim 1

IN APPARATUSES FOR CHARGING A STEEL MAKING FURNACE HAVING A PLURALITY OF LOADING DOORS WITH SCRAP IN COMBINATION: A BIN EFFECTIVELY PROVIDING A CONTAINING FOR A PREDETERMINED AMOUNT OF SCRAP, A FRAME STRUCTURE EFFECTIVELY PROVIDING A SUPPORT FOR SAID BIN, MEANS FOR SUPPLYING HEAT TO SCRAP MATERIAL ENCLOSED INSIDE SAID BIN, A CHUTE EFFECTIVELY PROVIDING A PASSAGEWAY FOR SCRAP MATERIAL FROM SAID BIN TO SAID FURNACE, MEANS OPERATIVELY SUPPORTING SAID CHUTE ON SAID FRAM STRUCTURE, AND MEANS FOR DELIVERING SCRAP FROM SAID BIN TO SAID CHUTE, AND MEANS SUPPORTING SAID FRAME STRUCTURE FOR MOVEMENT ALONG SAID FURNACE TO SELECTIVELY DELIVER SAID SCRAP FROM SAID CHUTE THROUGH SELECTED ONES OF SAID LOADING DOORS.

Claim 3

A METHOD OF PRODUCING STEEL USING SCRAPE MATERIAL TOGETHER WITH HOT METAL IN AN LD-TYPE STEEL MAKING FURNACE COMPRISING THE STEPS OF PREHEATING AT LEAST A PLURALITY OF PORTIONS OF SCRAP MATERIAL TO TEMPERATURES BELOW THAT TEMPERATURE AT WHICH SCRAP WILL CLOG, IMPARTING RAPID MOVEMENTS TO SAID PLURALITY OF PORTIONS OF PREHEATED MATERIAL SOLELY IN THE DIRECTION OF THE FURNACE THE FURNACE BEING IN A TILTED POSITION, SAID MOVEMENTS BEING EXCLUSIVELY IMPARTED BY GRAVITY AND BEING EFFECTIVE TO RAPIDLY CHARGE SAID FURNACE WITH SAID PREHEATED PORTIONS OF SCRAP MATERIAL, POURING HOT METAL INTO SAID FURNACE, PROCESSING THE MIXTURE OF HOT METAL AND SCRAP MATERIAL TO EFFECTIVE LY PRODUCT STEEL IN SAID FURNACE, AND RECOVERING THE STEEL PRODUCED IN THE FORM OF INGOTS.

Claim 4

A METHOD OF PRODUCING STEEL USING SCRAPE MATERIAL TOGETHER WITH HOT METAL IN AN LD-TYPE STEEL MAKING FURNACE COMPRISING THE STEPS OF PREHEATING AT LEAST A PLURALITY OF PORTIONS OF SCRAP MATERIAL TO TEMPERATURES BELOW THAT TEMPERATURE AT WHICH SCRAP WILL CLOG, IMPARTING RAPID MOVEMENTS TO SAID PLURALITY OF PORTIONS OF PREHEATED MATERIAL SOLELY IN THE DIRECTION OF THE FURNACE THE FURNACE BEING IN A TILTED POSITION, SAID MOVEMENTS BEING EXCLUSIVELY IMPARTED BY GRAVITY AND BEING EFFECTIVE TO RAPIDLY CHARGE SAID FURNACE WITH SAID PREHEATED PORTIONS OF SCRAP MATERIAL, POURING HOT METAL INTO SAID FURNACE, PROCESSING THE MIXTURE OF HOT METAL AND SCRAP MATERIAL TO EFFECTIVE LY PRODUCT STEEL IN SAID FURNACE, AND RECOVERING THE STEEL PRODUCED IN THE FORM OF INGOTS.