Top-gas cleaning at blast furnaces: comparison of wet and dry systems

Christof Lanzerstorfer, Stefan Grill, Andreas Steinwandterx

Publikation: Beitrag in Buch/Bericht/TagungsbandKonferenzbeitrag

Abstract

Efficient removal of the dust from blast furnace top-gas is essential for energy recovery in a top-gas recovery turbine. In most blast furnaces de-dusting is achieved by two-staged cleaning systems, comprising of a first separator – a dust catcher or a cyclone - and a second cleaning stage which is usually a scrubber. In a few blast furnaces dry cleaning systems have been realized in the past using a reverse air filter or an electrostatic precipitator. In recent years there has been a shift, especially in China, to totally dry cleaning systems using bag filters with pulse-jet cleaning systems. In this article the advantages and disadvantages of such dry de-dusting systems are discussed.
OriginalspracheEnglisch
TitelProceedings of the 49th International October Conference on Mining and Metallurgy
Seiten119-123
PublikationsstatusVeröffentlicht - 2017
VeranstaltungProceedings of the 49th International October Conference on Mining and Metallurgy - Bor Lake, Serbien
Dauer: 18 Okt 201720 Okt 2017

Konferenz

KonferenzProceedings of the 49th International October Conference on Mining and Metallurgy
Land/GebietSerbien
OrtBor Lake
Zeitraum18.10.201720.10.2017

Schlagwörter

  • blast furnace
  • top-gas cleaning
  • dry de-dusting

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