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Mineral Liberation Evolution After Different Degrees Of Comminution On Itabirites
By Rodrigo Fina Ferreira
This paper presents a mineral liberation study on two iron ore samples from the Quadrilátero Ferrífero, in Brazil: compact itabirite of low-grade metamorphism (CI) and friable itabirite of high-grade
Aug 1, 2018
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Energy-saving Technologies For Blast Furnaces Realized By Nippon Steel & Sumikin Engineering
By Kengo Usui
The energy consumption of Iron-making, especially Blast Furnace (BF), is very large. In order to maximize the utilization of limited resource, it is essential to reduce energy consumption and recoveri
Aug 1, 2018
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“state-of-the-art” Coking Technologies. Challenging Emissions At The Service Of The Environment: A Practical Brazilian Example
By Antonio Esposito
Saving energy and reducing pollution by minimizing emissions are today great challenges in the coking industry worldwide. In order to achieve satisfying results, equipment as well as technology should
Aug 1, 2018
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From Iron Ore To Iron
By Alim Ullah
The paper discusses the necessity of upgrading low-iron containing ores, giving as an example, NML-Tata Steel Project in the Quebec-Labrador region of Canada. As cooling of pellets is generally a bott
Aug 1, 2018
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Dephosphorization Of Oolitic Goethite Iron Ore By Roasting-leaching Process
By Wen Xuan
Oolitic iron ores have significant economical importance because of their extensive resources in the world. However, their utilisation is often quite limited due to the high content of phosphorus insi
Aug 1, 2018
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The Importance Of Iron Ore Characterisation And Dem Modelling In Materials Handling Applications With A Focus On Wear
By Tobias Krull
The characterisation of iron ore from a materials handling point of view is paramount in order to provide the best possible design for the desired application and maximise equipment uptime at the lowe
Aug 1, 2018
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Avaliação Da Influência Da Granulometria Sobre As Propriedades De Carvões E Coques - Parte 1: Caracterização De Cortes Granulométricos De Carvão
By Ismael Vemdrame Flores
No panorama atual da coqueificação há uma necessidade comum de aumentar o uso de carvão de menor qualidade, principalmente devido ao alto custo e decrescente disponibilidade de carvões coqueificáveis
Aug 1, 2018
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Improvement Of The Performance Of The Bosh Cooling System Of Rogesa No. 5 Blast Furnace
By Walter Hartig
Rogesa is operating two medium sized Blast Furnaces, No. 4 and No. 5 at Dillinger integrated steel works plant. The history of the results of the cooling concepts of the intersection between tuyère be
Aug 1, 2018
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Paul Wurth’s Modern Top And Stamp Charging Technology
By Jan Krull
A high productive coke making process in connection with stringent emission control has clearly become a demand of plant operators and stakeholders. Further to this, availability, quality and coal cos
Aug 1, 2018
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NIOBIUM CARBIDE (NbC) AS WEAR RESISTANT HARDMETAL IN OPENED AND CLOSED TRIBOSYSTEMS
By Mathias Woydt
The tribological and mechanical properties of binderless and metal-bonded niobium carbides (8 or 12 vol.-% of Cobalt, 12 vol.-% of Fe3Al) are presented. Rotating disks made of niobium carbide bearing
Jul 31, 2018
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Tribological Properties Of Carbon Nanotubes As Lubricant Additive In Oil And Water For A Wheel-rail System
By Jesús A. Carlos Cornelio
Since their discovery in 1991 Carbon nanotubes (CNTs) have attracted much interest due to their remarkable mechanical, thermal, electrical, chemical and optical properties. In connection with their me
Jul 31, 2018
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High Temperature/velocity Erosion Of Thermal Barrier Coatings: Field Diagnosis And Laboratory Testing Approach
By Augusto César Barrios Tamayo
The high temperature erosion of Thermal Barrier Coatings (TBCs) is one of the main factors that define the lifespan in gas turbine components as it is considered the second source of failure of hot pa
Jul 31, 2018
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Genesis And Stability Of Tribolayers In Solid Lubrication: Case Of Pair Dlc-stainless Steel
By Diego Berti Salvaro
The morphology, dimensions and chemical composition of tribolayers strongly depend on the pressures and temperatures acting on the contact. They are formed by reactions between the surfaces in contact
Jul 31, 2018
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Control Strategies For Friction Dampers: Numerical Assessment And Experiemtal Investigations
By Humberto Tronconi Coelho
The use of friction dampers are wide proposed for a variety of mechanical systems for which it is not possible to apply viscoelastic materials, fluid based dampers or others viscous dampers. An import
Jul 31, 2018
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Effects Of Ethanol On Film Thickness And Friction Of Group One Engine Oils
By Henara Lillian Costa
This paper aims to investigate the effects of a possible incorporation of ethanol to the lubricant during engine use on friction and lubricant film thickness, by adding small amounts of ethanol to Gro
Jul 31, 2018
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Study Of The Surface Morphology Of A Carbon Steel After Testings Corrosive-cavitative-erosive Wear In Aqueous Medium With Salt (Nacl), Co2 And Solid Particulates (Sio2) Fractions
By Fernando Nunes da Silva
Wear mechanisms of materials that constitute the equipments and operating parts in the pre-salt area during the production of petroleum and gas can include corrosion, corrosion-cavitation and corrosio
Jul 31, 2018
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Experimental Evaluation Of The Method Air Scouring Used In Flushing Systems For Cleaning Pipes
By Vitor Orlando Ferreira
The efficiency of an apparatus which uses a forced lubrication system, as well as the useful life of its components, is strongly related to the degree of contamination of lubricating oil. The presence
Jul 31, 2018
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Load Carrying Capacity Of A Heterogeneous Surface Bearing
By Evan Thomas
It has been shown before that liquids can slip at a solid boundary, which prompted the idea that parallel-surface bearings can be obtained by the use of alternating slip and non-slip regions in the di
Jul 31, 2018
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The Future Of Lubricants Is In “closing The Cycle” And Eco-toxicity; Cutting Oil Emulsions As An Example
By Satish V. Kailas
For product sustainability “closing the cycle” is the first requirement. If the materials used in making the product is not replenished at the rate at which it is being extracted, the cycle is open an
Jul 31, 2018
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Effect Of Temperature And Atmosphere On The Tribological Behaviour Of High Tribological Performance Peek (Polyether Ether Ketone) Composite
By Felipe Darabas Rzatki
Polyether ether ketone (PEEK) is a high performance thermoplastic often selected for high temperature tribological applications under chemically aggressive environments. The present work evaluate the
Jul 31, 2018