Collection method null of the quicklime powder which is calcined on the sinterring machine pallet

摘要

PURPOSE: To simply manufacture lime for sintering raw material by putting mixed powder of lime stone and cake on the surface of the sintering raw material in a iron ore sintering device, calcining the lime stone into the lime and recovering with a sucking device providing a cyclone. ;CONSTITUTION: In order to manufacture sintered ore for blast furnace, bedding ore and blending raw material (mixed material of powdery iron ore, coke powder, lime powder, returned ore, etc.) are put on an endless pallet 1 in the sintering machine from a bedding ore hopper 3 and a supplying ore hopper 4 and on this surface, the mixed powder 9 of the lime stone and the coke is put from a hopper 16. Further, ignition is executed to the coke by an igniting device 15 and also, combustion gas is sucked by an exhauster 14 through a wind box and an exhaust gas duct 23 to sinter the mixed raw material and the sintered ore is crushed 5 to the suitable size in an ore discharging part 22 and cooled 6 and passed through a screen 7 to manufacture the sintered ore. The lime 21 calcined from the lime stone by the igniting device 15 is sucked by plural sucking nozzles 19 at the tip part of carrying pipe 20 connected with the (a) position to an exhaust gas duct 23 and recovered by the cyclone 17. The lime for sintering raw material is simply manufactured without needing the special sucking device, etc.;COPYRIGHT: (C)1993,JPO&Japio