METHOD FOR MIXED CHARGING FUEL AND MATERIAL TO IMPROVE PERMEABILITY OF INTERMEDIATE PART IN BLAST FURNACE

摘要

PURPOSE: a kind of charging method provides a kind of good air permeability, passes through the layer for forming lattice distance iron ore. CONSTITUTION: coke passes through the mixed charging weighing device (71) of Weighing hopper (20-3) as the coke that fuel is stored in first end part, according to weighing valve in process computer (80). Big granularity ore weighing hoppers (30), which transmit and store surge hopper (30-3,30-4), passes through conveyer belt (30-2). The large ore of storage is supplied to charging belt conveyer (17) and passes through lower material by PLC (60). The large ore on coke supply top is mounted on charging belt conveyer (17) and passes through settling time original timer (64). Fuel is introduced into the hopper (11,11-1) of hopper, is stored in lower part. Charging angle compensation charges to blast furnace come the coke and iron ore for controlling supply amount.