SINTERING RAW MATERIAL PROCESSING METHOD AND SINTERED ORE PRODUCTION METHOD

• Main Authors: TAKIGAWA YOHEI, HIGUCHI TAKAHIDE, FUJIWARA SHOHEI, YAMAMOTO TETSUYA, HIROSAWA TOSHIYUKI, TAKEHARA KENTA
• Format: Patent
• Language: English; Japanese
• Published: 29.03.2023
• Subjects: CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

To provide a sintering raw material processing method in which discharge of non-crushed state sintering raw material from agitator by short pass is suppressed and deterioration of granulation property of fine-powder iron ore-containing sintering raw material can be suppressed, and to provide a sintered ore production method.SOLUTION: Provided is a sintering raw material processing method, in which a sintering raw material is agitated in an agitator having a container and an agitating blade, and at least one of the circumferential speed of the container and the rotating direction of the agitating blades is adjusted so that the residence time distribution of the sintering raw material in the container is narrowed.SELECTED DRAWING: Figure 1 【課題】ショートパスによる未解砕状態の焼結原料の撹拌機からの排出を抑制し、微粉鉄鉱石を含む焼結原料の造粒性低下を抑制できる焼結原料の処理方法および焼結鉱の製造方法を提供する。【解決手段】容器と撹拌羽根とを有する撹拌機で焼結原料を撹拌する焼結原料の処理方法であって、容器内における焼結原料の滞留時間の分布が狭くなるように容器の周速度および撹拌羽根の回転方向の少なくとも一方を調整する。【選択図】図１