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A CFD study on the dust behaviour in a metallurgical waste-heat boiler

Abstract

A waste-heat boiler forms an essential part for the treatment of high temperature flue-gases in most metallurgical processes. Flue-dust carried by the furnace off-gas has to be captured efficiently in the waste-heat boilers before entering the downstream gas purification equipment. Flue dust may accumulate and foul on the heat transfer surfaces such as tube-walls, narrow conjunctions between the boiler and the furnace uptake, and thus may cause smelter shutdown, and interrupt the production. A commercial CFD package is used as the major tool on modelling the dust flow and settling in the waste-heat boiler of an industrial copper flash smelter. In the presentation, dust settling behaviour is illustrated for a wide range of particle sizes, and dust capture efficiency in the radiation section of the boiler for different particle sizes has been shown with the transient simulation. The simulation aims at providing detailed information of dust behaviour in the waste-heat boiler in sulphide smelting. (author) 11 refs.
Authors:
Yongxiang, Yang; Jokilaakso, A [1] 
  1. Helsinki Univ. of Technology, Otaniemi (Finland). Lab. of Materials Processing and Powder Metallurgy
Publication Date:
Dec 31, 1997
Product Type:
Conference
Report Number:
TKK-MK-1; CONF-9706306-
Reference Number:
SCA: 360101; 420400; PA: FI-99:003114; EDB-99:070009; SN: 99002078279
Resource Relation:
Conference: 4. international colloquium on process simulation, Espoo (Finland), 11-13 Jun 1997; Other Information: PBD: 1997; Related Information: Is Part Of The 4th international colloquium on process simulation. Proceedings; Jokilaakso, A. [Helsinki Univ. of Technology, Otaniemi (Finland). Dept. of Materials Science and Metallurgy]; PB: 621 p.
Subject:
36 MATERIALS SCIENCE; 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; WASTE HEAT BOILERS; METAL INDUSTRY; COMPUTERIZED SIMULATION; DUSTS; P CODES; SMELTING; HEAT TRANSFER; TWO-PHASE FLOW; GAS FLOW; FLOW MODELS; FURNACES; TURBULENCE
OSTI ID:
357220
Research Organizations:
Helsinki Univ. of Technology, Otaniemi (Finland)
Country of Origin:
Finland
Language:
English
Other Identifying Numbers:
Other: ON: DE99735414; ISBN 951-22-3574-9; TRN: FI9903114
Availability:
OSTI as DE99735414
Submitting Site:
FI
Size:
pp. 275-293
Announcement Date:
Aug 12, 1999

Citation Formats

Yongxiang, Yang, and Jokilaakso, A. A CFD study on the dust behaviour in a metallurgical waste-heat boiler. Finland: N. p., 1997. Web.
Yongxiang, Yang, & Jokilaakso, A. A CFD study on the dust behaviour in a metallurgical waste-heat boiler. Finland.
Yongxiang, Yang, and Jokilaakso, A. 1997. "A CFD study on the dust behaviour in a metallurgical waste-heat boiler." Finland.
@misc{etde_357220,
title = {A CFD study on the dust behaviour in a metallurgical waste-heat boiler}
author = {Yongxiang, Yang, and Jokilaakso, A}
abstractNote = {A waste-heat boiler forms an essential part for the treatment of high temperature flue-gases in most metallurgical processes. Flue-dust carried by the furnace off-gas has to be captured efficiently in the waste-heat boilers before entering the downstream gas purification equipment. Flue dust may accumulate and foul on the heat transfer surfaces such as tube-walls, narrow conjunctions between the boiler and the furnace uptake, and thus may cause smelter shutdown, and interrupt the production. A commercial CFD package is used as the major tool on modelling the dust flow and settling in the waste-heat boiler of an industrial copper flash smelter. In the presentation, dust settling behaviour is illustrated for a wide range of particle sizes, and dust capture efficiency in the radiation section of the boiler for different particle sizes has been shown with the transient simulation. The simulation aims at providing detailed information of dust behaviour in the waste-heat boiler in sulphide smelting. (author) 11 refs.}
place = {Finland}
year = {1997}
month = {Dec}
}