Programações - ABM Brasil

PANEL - METALLIC CONSTRUCTION: SOLUTIONS FOR INFRASTRUCTURE AND BUILDINGS

Per: Coordinators: Débora Oliveira - Director of Communication and Institutional Relations at IABr - Brazil Steel Institute; Geraldo Iran de Souza Lima Cardoso - Director of the regional north central of ABM - Brazilian Association of Metallurgy, Materials and Mining

Area: Metal Products

Theme: Ferrous metal products

Event: 75th Annual Congress

Type: Oral

Date and time: 08/06/22 | 08h35

Room: Auditorium Gerdau

Abstract:

8:35 - 8:55 - Welcome words

Horacidio Leal - Executive President at ABM - Brazilian Association of Metallurgy, Materials and Mining

Débora Oliveira - Director of Communication and Institutional Relations at IABr - Brazil Steel Institute

8:55 - 10:15 - Demands from Brazil - Contextualization

Marino Garofani - VP of metallic structures at ABCEM - Brazilian Association of Metallic Construction and president of Brafer, Metallic Constructions

Eduardo Zanotti - Executive diretor at CBCA - Brazilian Center for Steel Construction

Ricardo Fakury - Titular Professor at UFMG - Federal University of Minas Gerais and CNPq Researcher

Debates - Marino Garofani - VP of metallic structures at ABCEM - Brazilian Association of Metallic Construction and president of Brafer, Metallic Constructions

11:05 - 12:45 - Competitive solutions in the international scenario

Alejandro Wagner - Executive director of ALACERO - Asociación Latinoamericana del Acero

Bassam Burgan - Director of SCI - Steel Construction Institute - United Kingdom

Carlos Rebelo - Professor at the University of Coimbra-Portugal/ISISE - Institute for Sustainability and Innovation in Structural Engineering

Luis Pupin - Steligence methodology - Global R&D Brazil da ArcelorMittal

Debate - Luis Simões - Director at ISISE - Institute for Sustainability and Innovation in Structural Engineering e Vice-Reitor da Universidade Coimbra Portugal)

14:00 - 15:40 - Competitive solutions in the Brazilian scenario

Tomás Vieira de Lima - Director of steel structure at ABECE - Brazilian Association of Engineering and Structural Consulting

Gustavo Chodraui - Senior Calculating Engineer at CODEME

Alexandre Magno Jordão - Niobium Market Development specialist at CBMM - Companhia Brasileira de Metalurgia e Mineração

Luiz Henrique Ceotto - CEO at URBIC

Debate - Tomás Vieira de Lima - Director of steel structure at ABECE - Brazilian Association of Engineering and Structural Consulting

EFFECT OF DENSITY VARIATION ON SEMI-COKE CONTRACTION AND EXPANSION RESULTS

Per: cleontt guilherme tavares (VALE )

Area: Ironmaking and Ore Agglomeration

Theme: Coke plant, by-products and carbonization

Event: 50th Ironmaking

Type: Oral

Date and time: 08/06/22 | 09h00

Room: 1

Abstract:

In the coking processes mixes with different types of coal and inert coals are used, as few coals have all the desired characteristics to produce quality coke. Coke is usually produced by mixtures of different types of coals (Maranha et al. 2014). The cost of coking coal for use in the coking process in the steel industry revolves around 18-20% of the final cost of steel. According to Alves (2017), the densification of the charge by means of physicochemical or mechanical agents such as Stamp Charging can be an output for metallurgical coke production reducing the mixing cost and increasing the productivity without the qualities of the coke produced be compromised. During the pyrolysis in which the coal is subjected inside the furnace without the presence of air, called coking, the different types of coking coals available in the market may contraction and /or expand. It is not worthy that in By-Products coking plants, the total expansion of the mixture may make its application impracticable. The Sole Heat Oven (SHO) test was developed to evaluate the contraction and/or expansion behavior of a coal or mixtures during the coking process. However, the method is applied without load compaction under density conditions as determined by the test standard, ASTM D2014-97. Considering what has been addressed so far, knowing the behavior of the mixture becomes an important tool for the operational viability of mixtures and or coals considered unsuitable for the coking process and bench scale testing becomes a safe methodology and cheap to follow the process. Therefore, the present work developed a structuring method capable of simulating the Stamp Charging process in SHO type furnaces, and to know the effects that the high compaction density up to 1,10 t/m³, may cause in the expansion and contraction comportment of the charge. During the development of the work were analyzed individual coals and mixtures, with characteristics of expansion, contraction and high inert (coals that do not have coking properties) alternating the charge density from 0.8 to 1.1 t / m³.