Patent ID: 7879133
Filing Date: 2011-02-01
Classification: C21B,F27B,F27D,G01F

Abstract:
1. A method for measuring an outline of a stratum of a reactant applied to a blast furnace that is a container having an inner surface; multiple reactants being coke and iron ore, being layered in stratum in the container, covering part of the inner surface of the blast furnace, and each reactant stratum has an outline; an inside being the exposed inner surface of the blast furnace and the outline of the top reactant stratum; a top; a neck defined at the top of the blast furnace and having an opening; and a feeder mounted at the opening of the neck of the blast furnace to charge coke and iron ore into the blast furnace in turn; and the method comprising steps of: providing a single three-dimensional (3-D) laser scanner comprising mounting a 3-D laser scanner at the neck of the blast furnace at a specific angle, directing the 3-D laser scanner at the reactant strata in the blast furnace to scan the inside of the blast furnace and output point group data (PGD) that represent digital data of the inside of the blast furnace; providing a computer comprising connecting a computer to the 3-D laser scanner, and the computer having a point group analysis program that measures the outline of the top reactant stratum from the PGD; obtaining PGD comprising sending the PGD output by the 3-D laser scanner to the computer; and calculating the outline of the top reactant stratum from the PGD being performed by the point group analysis program in the computer to construct a model of the inside of the blast furnace then calculate the outline of the top reactant stratum in the blast furnace from the PGD.