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1. 发明申请

WO1997030320A1 IRON-BASE SCRAP PREHEATING APPARATUS AND METHOD 审中-公开
标题翻译：铁基预烧装置及方法
公开(公告)号：WO1997030320A1
公开(公告)日：1997-08-21
申请号：PCT/JP1997000383
申请日：1997-02-13
申请人： NIPPON STEEL CORPORATION , HARADA, Toshiya , SHIGEYAMA, Yukinori , TAKEUCHI, Mitsugu
发明人： NIPPON STEEL CORPORATION
IPC分类号： F27D13/00
CPC分类号： C21C5/565 , C21C5/40 , C21C5/42 , F27B3/18 , F27B7/00 , F27D13/002 , Y02P10/216 , Y02P10/265 , Y02P10/283 , Y10S266/901
摘要： In order to preheat iron-base scrap comprising iron pieces of wide ranges of size and shapes at a high efficiency so that these pieces are not fused to one another, a rotary kiln type preheating furnace and a shaft furnace type preheating furnace are provided in parallel in a stage preceding the stage of a melting furnace in which the scrap is melted, and preheated scrap from the two preheating furnaces is placed in the melting furnace. A damper is provided between the shaft furnace type preheating furnace and melting furnace so as to introduce an exhaust gas from the melting furnace into the rotary kiln type preheating furnace while preventing the exhaust gas from directly entering the shaft furnace type preheating furnace, and the exhaust gas passing through the rotary kiln type preheating furnace is introduced into the shaft furnace type preheating furnace preferably from an upper portion thereof and discharged from a lower portion thereof. The rotary kiln type preheater and/or the shaft furnace type preheating furnace is provided with an air or oxygen inlet for burning inflammable components of the exhaust gas.
摘要翻译：为了高效率地预热包含宽范围尺寸和形状的铁片的铁基废料，使得这些片彼此不熔合，并联地设置回转窑式预热炉和竖炉式预热炉在熔融炉的阶段之前的阶段，其中废料熔化，并且将来自两个预热炉的预热废料放置在熔炉中。在竖炉式预热炉和熔炉之间设有阻尼器，以便将排气从熔炉引入回转窑式预热炉，同时防止废气直接进入竖炉型预热炉，排气通过回转窑式预热炉的气体优选从其上部引入竖炉型预热炉，并从其下部排出。回转窑式预热器和/或竖炉式预热炉设置有用于燃烧废气的易燃部件的空气或氧气入口。

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