Blast furnace lump ore drying and screening device

• Main Authors: XIAO CHUNJIANG, LIU GANG, PEI ZHENGZHEN, HUO ZHENG, ZHANG SHUJIANG
• Format: Patent
• Language: Chinese; English
• Published: 13.04.2021
• Subjects: BLASTING; DRYING; DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM; HEATING; LIGHTING; MECHANICAL ENGINEERING; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL; PERFORMING OPERATIONS; SEPARATING SOLIDS FROM SOLIDS; SEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, ORSIFTING OR BY USING GAS CURRENTS; SORTING; TRANSPORTING; WEAPONS

The invention discloses a blast furnace lump ore drying and screening device. The blast furnace lump ore drying and screening device is composed of a supporting box, a drying roller machine, a combustion furnace, a dust removal device and a screening device, purified blast furnace gas and combustion air provided through a combustion fan enter a combustor of the combustion furnace at the same time to be ignited and then release heat, and high-temperature hot air is provided for an inner cavity of the drying roller machine. Lump ore is dried, according to the drying and screening device, water outside the lump ore entering a blast furnace can be completely removed, meanwhile, part of water inside the lump ore is removed, if the powder content is greatly reduced to 2% or lower, the charging proportion of the lump ore treated through the device reaches 30% or above, the blast furnace can stably and smoothly run, the device has good practical value for iron and steel enterprises with insufficient sintering and pel