PW型水冷气密箱模拟高炉工况 热态试验

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HOTSTATETESTOFPWTYPEWATER-COOLED SEALEDBOXSIMULATINGBLASTFURNACE OPERATINGCONDITIONS

Fang Yuliang (Qinhuangdao QinyeHeavy Industry Co.,Ltd.， QinhuangdaoO66318, China)

Abstract:As the third-generation blastfurnace charging system,the Nobellfurnace top equipment playsa role in arranging raw materials tothe blast furnace throat. In1972,PWcompany inLuxembourg successfullydeveloped thebell lesstop equipment with a planetary diferential reducer driving a water-cooled seal boxas thecorecomponent.Since its application,ithasalwaysoccupiedaposition inthebellesstopmarket,especiallinthelarge blastfurnace market. Dueto the close proximityof the airtightbox to the topofthe blastfurnace,the botom oftheairtight boxis subjected toabaking temperature of over 200 C ,and an abnormal furnace temperature of up to 700 C mayoccur.Thisarticle providesan overview of the self-developed heating furnace,combined with the hot state tests conductedon all the airtightboxesrepaired byourcompanybefore leaving thefactory.This test effectively improvestherepair qualityand service lifeof theairtightboxes,andthetechnicalfeasibilityandhighsafetyofthesolutionhave good promotion value.

Key words:no bell furnace top;PW; heating furnace; hot state test

1PW型水冷气密箱简介

20世纪70年代初，由卢森堡一保罗沃特（PaulWurth，简称PW）公司设计出的一种无料钟炉顶装料装置于1972年首次投产，其核心设备水冷气密箱（见图1）是用一个既可绕高炉中心线旋转，又可摆动的布料溜槽来向高炉内布料。（剩余5686字）