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1 前言新日铁八幡厂在若松和户烟两个地区共有两台(分别为600m~2和320m~2)烧结机,专为两座4000m~3高炉提供烧结矿。由于该公司决定减少粗钢产量,所以该厂决定使其中一座高炉和若松地区的烧结机停产。在若松烧结机停产期间,户烟烧结机的产量由9800t/d增加到14310t/d,以满足1号高炉日产生铁9560t的需要(烧结矿为80％)。为了提高产量,烧结机长度从80m加长到120m。与此同时,在烧结机上还应用了各种新技术。本文将介绍为提高烧结机产量而进行的改造项目、烧结机改造后的操作结果和烧结机所采用的各种新技术。 2 烧结机改造项目户畑厂改造后的烧结设备示于图1,表1(略)所列为改造前后主要设备的技术条件。 2.1 布置情况
1 Introduction The Nippon Steel Yawata Plant has two sintering machines (600m 2 and 320m 2 respectively) in the two regions of Wakamatsu and Hokkaido, which are used to provide sinter for two 4000m ~ 3 blast furnaces. As the company decided to reduce crude steel production, the plant decided to shut down one of the sintering machines in the blast furnace and Wakamatsu area. During the shutdown of the Waksons sintering machine, the output of household smoke sintering machines increased from 9800 t / d to 14310 t / d to meet the need of generating 9560 t of iron per day for the No. 1 blast furnace (80% of the sinter). In order to increase production, sintering machine length from 80m to 120m. In the meantime, various new technologies have also been applied to the sintering machine. This article will introduce the retrofit projects to improve the output of the sintering machine, the operation results of the sintering machine and the various new technologies used in the sintering machine. 2 sintering machine renovation project TU plant transformation of the sintering equipment shown in Figure 1, Table 1 (omitted) for the major equipment before and after the transformation of the technical conditions. 2.1 layout