FOURTH JAPAN-BRAZIL SYMPOSIUM ON
DUST PROCESSING-ENERGY-ENVIRONMENT
IN METALLURGICAL INDUSTRIES
PROCEEDINGS
September 23 and 24, 2002
University of Sao Paulo- Polytechnic School
Department of Metallurgical and Materials Engineering
Sao Paulo, Brazil
Edited by: Jun-ichiro Yagi — Tohoku University
Cyro Takano - University of Sao Paulo
ESCOLA POLITECNICA DA UNIVERSIDADE DE SAO PAULO
Printed in Brazil
tiWffiERSITATSBiBUOTHEK
HANNOVER
TECHKISCHE
INFORMATIONSBiuLIOTHEK
CONTENTS
1.
URBAN-SYMBIOTIC ENERGY SYSTEM FOR IRON AND STEELMAKING
INDUSTRIES
Jun-ichiro Yagi, Tomohiro Akiyama and Hiroshi Nogami
Tohoku University and Osaka Prefecture University
1
2.
INVESTIGATION OF THE BLAST FURNACE TOP GAS RECYCLING BY USING
ONE STAGE OF REFORMING AND INJECTION INTO THE BLAST FURNACE
SHAFT
Jose Adilson de Castro, Alexandre Jose da Silva, Eduardo Lelis Salgueiro, Hiroshi Nogami
and Jun-ichiro Yagi
Fluminense Federal University and Tohoku University
17
3.
NEW DEVELOPMENTS FOR INJECTION OF COAL INTO BLAST FURNACES
Paulo Santos Assis, Jorge Alberto Soares Tendrio and Pedro Jos6 Nolasco Sobrinho
Federal University of Ouro Preto and University of Sao Paulo
29
4.
THREE DIMENSIONAL MATHEMATICAL MODEL OF THE BLAST FURNACE:
APPLICATION TO SIMULATE THE CHARCOAL MINI BLAST FURNACE
Jose Adilson de Castro, Alexandre Jose da Silva, Danielle Eisemberg Gomes, Hiroshi Nogami
and Jun-ichiro Yagi
Fluminense Federal University and Tohoku University
41
5.
IMPROVEMENT OF BLAST FURNACE REACTION EFFICIENCY BY USE OF HIGH
REACTIVITY COKE
Masaaki Naito
Ironmaking R&D Division, Environment & Process Technology Center,
Nippon Steel Corporation
53
6.
SOME TECHNICAL POINTS ABOUT PRODUCTION OF SODERBERG ELECTRODE
PASTE RELATING TO ITS HIGH TEMPERATURE PERFORMANCE
Weber de Brito Martins, Jorge Luiz Vieira Miranda, Rubens Habesh and Paulo Santos Assis
REDEMAT (UFOP/UEMG/CETEC)- Federal University of Ouro Preto/ Vantec-Carbono 67
7.
REACTION ENHANCING MECHANISM IN IRON ORE-CARBONACEOUS
MATERIAL COMPOSITE PELLETS HEATED AT ELEVATED TEMPERATURES
Yoshiaki Iguchi, Meng Fanming and Masafumi Hiura
Nagoya Institute of Technology
77
THE IRON MORPHOLOGY OF SELF-REDUCING BRIQUETTES
Jose Carlos D'Abreu , Karla de Melo Martins and Jose Henrique Noldin Junior
Catholic University of Rio de Janeiro-PUC-RJ
89
8.
9.
RAPID REDUCTION AND MELTING OF CARBON COMPOSITE IRON ORE
PELLETS ON HIGH TEMPERATURE
Masakata Shimizu, Koki Nishioka and Takayuki Maeda
Kyushu University
103
10.
THE SELF-REDUCTION TECHNOLOGY FOR THE RECYCLING OF SOLID WASTES
IN AN INTEGRATED STEELMAKING PLANT
Ramiro Conceic,5o Nascimento, Guilherme Lenz, Erberto Francisco Gentile,
Cyro Takano, and Marcelo Breda Mourao
University of Sao Paulo
115
11.
ULTRA-fflGHREDUCTONRATECFTHEHEMATnEGRAIWIEMIXTURE BY A
MECHANICAL MILLING
Kuniyoshi Ishii, Yoshiaki Kashiwaya and Jalil Vahdati Khaki
Hokkaido University
125
12.
THREE-DIMENSIONAL MULTIPHASE MATHEMATICAL MODEL OF THE
SINTERING PROCESS, WITH APPLICATION TO RECYCLING DUST FINES FROM
THE STEEL INDUSTRIES
Jose Adilson de Castro, Alexandre Jose da Silva, Hiroshi Nogami and Jun-ichiro Yagi
Fluminense Federal University and Tohoku University
139
13.
RECYCLING OF ELECTRIC ARC FURNACE DUST AND SMELTING REDUCTION
OF CHROMITE ORE WITH THE AID OF POWDER INJECTION TECHNIQUE TO
MOLTEN IRON
Masahiro Kawakami, Seiji Yokoyama and Toshihide Takenaka
Toyohashi University of Technology
155
14.
CHROMIUM RECOVERY FROM STAINLESS STEEL DUSTS
Pedro Josd Nolasco Sobrinho, Denise Crocce Romano Espinosa, Paulo Santos Assis and Jorge
Alberto Soares Tendrio
University of Sao Paulo and Federal University of Ouro Preto
169
15.
RECOVERY OF IRON FROM DUSTS AND SLUDGES EMPLOYING COMPOSITE
PELLETS
Dener Martins dos Santos and Marcelo Breda Mourao
University of Sao Paulo
177
16.
COMPUTATIONAL STUDY OF THE USE OF STEELMAKING SLAGS
Joao Pedro V.Tosetti, Flavio Beneduce, Joao Batista Ferreira Neto, Cyro Takano and Andre
L.V.Costa e Silva
Technological Research Institute of the State of Sao Paulo.University of Sao Paulo and
Universidade Federal Fluminense - UFF/IBQN
189
17.
DIMENSIONAL STABILIZATION PROCESS OF ELECTRIC STEEL SLAG AIMING
ITS USE AS CEMENT SUBSTITUTE
Angela B.Masuero, Antonio. C. F. Vilela and Denise C. C. Dal Molin
Federal University of Rio Grande do Sul-UFRGS
205
18.
SINTERING BEHAVIOR OF PELLET WITH ADDITION OF METALLURGICAL
SLAGS
Katsumi Mori, Yoshiaki Tsutsumi, Rei Sugimura and Kunihiko Nakashima
Kyushu University
219
19.
SYNTHETIC SLAG PRODUCED IN INDUCTION FURNACE FOR USING IN ESR
FURNACE
Alvaro Martins Junior, Sergio Antdnio Gabrich and Paulo Santos Assis
REDEMAT (UFOP/CETEC/UEMG)- Federal University of Ouro Preto/Vantec-Carbono...229
20.
EXPANSIBILITY EVALUATION OF ELECTRIC ARC FURNACE SLAGS AS AN
ALTERNATIVE MATERIAL TO BASE OF PAVEMENT
Eduardo Osorio, Daniel Pagnassut, Mauricio Mancio, Angela B. Masuero, Daniela Graffitti,
Carlos A.M. Moraes, Antonio C.F. Vilela and Clovis D. Acosta
Federal University of Rio Grande do Sul; University of Vale do Rio dos Sinos and GerdauRiograndense Steel Plant
239
21.
EFFECTS OF PROCESS PARAMETERS ON ULTRASONIC DEGASSING OF MELT
Mamoru Kuwabara, Noriyasu Kawakita, Keiji Okumura and Masamichi Sano
Nagoya University
251
22.
ELECTRIC ARC FURNACE DUST REDUCTION USING FOUNDRY FUGITIVE DUST
AS THE MAIN REDUCING AGENT
Janafna M. Gonc.alves, Carlos A. M. Moraes, Daniela Graffitti, Feliciane Andrade Brehm and
Antdnio C. F. Vilela.
Federal University of Rio Grande do Sul and Rio dos Sinos University
263