Grasp manner of the raw materials charging status in the bell less blast furnace and operation manner of the blast furnace

摘要

PPROBLEM TO BE SOLVED: To provide a method for grasping the charging situation of raw materials by which, in a bell-less blast furnace, the relation between the laying order in a conveyer and the discharging order of the raw materials from a furnace top bunker, etc., can be grasped. PSOLUTION: In the method for grasping the charging situation of the raw materials in the bell-less blast furnace having distributing chutes at the furnace top part of the blast furnace, RFID (Radio Frequency Identification) tags which are different in ID information, are set on each raw material in the conveyer for conveying the raw material to the blast furnace and the ID information of the RFID tag discharged from the furnace top bunker, is detected by a lower part tag detecting mechanism in which a lower part ID information detecting end part is disposed at the discharging hole or the lower part of the furnace top bunker, and the charging situation of the raw material is grasped by using the arranging order of the RFID tag on the conveyer and the discharging order from the bunker in the RFID tag detected by the lower part tag detecting mechanism. Thus, this result is used, and the optimization of the raw material distribution is achieved and the proper operation of the blast furnace can be obtained. PCOPYRIGHT: (C)2010,JPO&INPIT