METHOD FOR CONTROLLING HOT BLAST FLOW THROUGH TUYERE

摘要

The invention relates to systems to monitor and control the flow of the hot blast blowing and supplements through tuyeres of a blast furnace. SUMMARY OF THE INVENTION: measured total flow rate of hot blast and the pressure drop at the measuring stations tuyere assemblies, the control of hot flow blowing through each tuyere is performed as measured by pressure differences, wherein calibration coefficients tuyere assemblies are calculated from the system hot flow balance equations which blow adjusted coefficient of unbalance flow of the hot blast, the pre-calculated considering that disparity blowing hot flow which is dependent on the error of measuring pressure differences and the total flow rate of the hot blast recorded by measuring changes in their velocity. 2 yl.