Energy Recovery And Utilization Of The Converter Steelmaking Process

The realization of converter negative energy consumption steelmaking is very important symbol for a modern steel making enterprise,which means the total energy consumption of converter steelmaking process is less than the total energy recovered during the steelmaking process.The discussion of the realization of negative energy consumption is based on the calculation of thermal equilibrium,the result of process energy consumption modeling, and the analysis of various converter processes energy consumption and recycling.By examination of the various factors of the model is studied in standand the modynamic state.The minimum energy consumption of the converter processes the analysis of actual energy consumption with the smallest differences in energy consumption.Analysis of energy consumption model for the converter shows:(1) Increasing the recovery amount of gas and vapor and reducing the energy consumption are the keys for negative energy steel-making;(2) The greater the concentration of CO in the original furnace gas,the greater the gas is recoveried;the smaller the air inhaled coefficient,the greater the converter gas is recoveried,and the greater the volume of gas is recoveried;the greater the molten iron and the carbon content in molten iron and carbon-carbon materials in the total oxidation of the furnace,the more the amout of recoveried gas is.(3) Under ideal working conditions,the smallest oxygen consumption per ton is 72.97kg/t,i.e.51.08m~3/t;the largest gas recovery volume is128.83m~3/t;the largest collection of steam is 71.63kg/t;The minimum process energy consumption is -18.96kgce/t;(4) Considering the calcuted results of energy consumption and the practice,if the average amount of vapure recovery is 52kg/t,the converter gas recovery is at least 88m~3/t,then the converter can achieve "negative energy consumption."...