Title

DESPOEIRAMENTO PRIMÁRIO NOS GASES DO BOF - SISTEMA SEMI DRY E SEUS RESULTADOS DE OPERAÇÃO NA CHINA

BOF PRIMARY OFF-GAS CLEANING --- SEMI DRY SYSTEMS AND THEIR OPERATION RESULTS IN CHINA

Authorship

Liu, Morris; Hao, Xingang; Xiong, Blake

Liu, Morris

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Hao, Xingang

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Xiong, Blake

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DOI

10.5151/1982-9345-31340

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Abstract

Existem dois tipo de sistemas de lavagem, seco ou úmido, dos gases gerados na produção do aço por meio do processo BOF – Basic Oxygen Funace – ao longo da história. O Sistema Semi Dry baseado nas patentes criadas pela Spraying Systems China é apresentado

There are wet or dry two types of BOF Primary Off-gas Cleaning Systems for long history in the world. Semi Dry Systems based on China pending patents by Spraying Systems is presented in this paper. More than 200 BOF operation results prove that: 1) lower dust emission: typical≦30 mg/Nm3; lowest≦10 mg/Nm3; 2) at least 50% water saved; 3) less maintenance; 4) short downtime 7-20 days for revamping; 5) waste water such as coke waste water is treated and re-used with low cost and no harmfulness. It is especially suitable for revamping present wet and dry BOF off-gas cleaning systems, also a better solution for newly built BOF project.

Keywords

BOF; Despoeiramento primário, Semi Dry

BOF; primary off-gas; semi dry cleaning