Patent ID: 8540930
Filing Date: 2013-09-24
Classification: C21B,F27B,F27D

Abstract:
1. A reduction furnace for reducing an iron-containing material used for manufacturing molten iron, the reduction furnace comprising: a charging hole where the iron-containing material is charged into the reduction furnace; a first guide plate in the reduction furnace, the first guide plate being sloped toward a first direction to guide the iron-containing material to a lower space of the inside of the reduction furnace; a second guide plate in the reduction furnace, the second guide plate being fixed and sloped toward a second direction intersecting the first direction to guide the iron-containing material dropped and guided by the first guide plate; and a guide tube where the first guide plate and the second guide plate are installed, wherein a dropping direction of the iron-containing material dropped and guided by the first guide plate is changed when the iron-containing material is guided by the second guide plate, and wherein the guide tube comprises: a first guide tube portion; and a second guide tube portion connected to the first guide tube portion to be communicated with the first guide tube portion, wherein a cross-section of the first guide tube portion decreases along a preceding direction of the iron-containing material.