公开(公告)号：US4556418A

公开(公告)日：1985-12-03

申请号：US657121

申请日：1984-10-03

Applicant: Andrew J. Syska

Inventor： Andrew J. Syska

IPC: C21B11/02 ,  C21B13/14

CPC classification number: C21B11/02 ,  C21B13/14 ,  Y02P10/136 ,  Y10S266/90

Abstract: A process for melting a ferrous burden comprising scrap iron, scrap steel, pig iron, direct reduced iron or mixtures thereof without the use of coke is provided. Air or enriched air as a primary oxidant is preheated and together with fuel is combusted to form a reducing atmosphere in a shaft furnace or forehearth which melts the ferrous burden in the melting zone of the shaft furnace. The reducing atmosphere leaving the melting zone of the shaft furnace is further combusted with a secondary oxidant in the preheating zone of the shaft furnace. The top gas from the preheating zone of the shaft furnace is combusted with a tertiary oxidant to provide a heated flue gas to preheat the primary oxidant. Optionally, the heat remaining in the flue gas after preheating the primary oxidant may be recovered in a waste heat recovery device.

Abstract translation: 提供了一种用于熔炼含铁废料的方法，包括废铁，废钢，生铁，直接还原铁或其混合物，而不使用焦炭。 作为主要氧化剂的空气或富集空气被预热，并与燃料一起燃烧，以便在竖炉或炉床中形成还原气氛，其熔化竖炉熔化区中的铁质负荷。 离开炉膛熔化区的还原气氛在竖炉的预热区中与次级氧化剂进一步燃烧。 来自竖炉的预热区域的顶部气体与第三氧化剂一起燃烧以提供加热的烟道气以预热主氧化剂。 任选地，在预热初级氧化剂之后残留在烟道气中的热量可以在废热回收装置中回收。

公开(公告)号：US4445842A

公开(公告)日：1984-05-01

申请号：US318372

申请日：1981-11-05

Applicant: Andrew J. Syska

Inventor： Andrew J. Syska

IPC: F23C9/00 ,  F23L15/04

CPC classification number: F23C9/00 ,  F23L15/04 ,  F23C2202/20 ,  F23C2900/09002 ,  Y02E20/348

Abstract: A recuperative burner having a recirculating conduit to direct flue gas to the combustion chamber with the air and fuel, and a compact recuperative stack with a recuperative flue gas conduit and an air passage in which air separated from the flue gas by the recuperative flue gas conduit is preheated before supplying it to the combustion chamber.

Abstract translation: 一种还原燃烧器，其具有用于将烟道气引导到具有空气和燃料的燃烧室的再循环管道，以及具有再生烟道气管道和空气通道的紧凑型还原堆，其中空气通过再生烟气管道与烟道气分离 在将其供给到燃烧室之前进行预热。

公开(公告)号：US2893647A

公开(公告)日：1959-07-07

申请号：US65712157

申请日：1957-05-06

Applicant: GEN MOTORS CORP

Inventor： WORTMAN DONALD E

IPC: B05B1/32 ,  B05B7/06 ,  B05B7/10

CPC classification number: B05B7/066 ,  B05B1/323 ,  B05B7/10 ,  Y10T137/7929