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Controle das temperaturas dos blocos de carbono do alto-forno, através do seu sistema de refrigeração, visando o prolongamento da campanha
(Universidade Federal de Minas GeraisUFMG, 2005-12-20)
With the aim of increasing blast furnace life, alternatives to control the carbon blocks temperature in a blast furnace hearth were studied. The main influences on the wear of the carbon blocks, as well as the control ...
Avaliação da retração autógena em concretos de alto desempenho com diferentes adições
(Universidade Federal de Minas GeraisUFMG, 2008-02-28)
High performance concrete is commonly useful by its performance, strength, durability, workability and others. Autogenous shrinkage can be considering one of the reasons of cracks on high performance concretes at early ...
Comportamento de cimento Portland fabricado com micro e nanoestruturas de carbono sintetizadas diretamente sobre escória de alto-forno
(Universidade Federal de Minas GeraisUFMG, 2017-06-06)
Cement is the most widely used building material in the world; however, it consumes a lot of energy and releases a significant amount of carbon dioxide (CO2) in the atmosphere during its manufacture. Cement composites ...
Efeito do tipo de carvão injetado nas ventaneiras do alto-forno no consumo de combustíveis (Fuel-Rate)
(Universidade Federal de Minas GeraisUFMG, 2007-09-14)
Coal injection through of the blast furnaces tuyeres is one of the ways to reduce coke consumption and dependence in the blast furnace process in addition to lowering of cost of production of pig iron. There are increasing ...
Influência da qualidade das matérias-primas no escoamento gasoso da zona granular do alto-forno
(Universidade Federal de Minas GeraisUFMG, 2014-06-06)
This work includes the study of the pressure drop in fixed bed consisting of particles of charcoal, iron ore and pellets, used in the pig iron production, and considering irregular particles distributed in a certain range ...
Desenvolvimento de modelo matemático do fluxo de líquidos no cadinho do alto-forno
(Universidade Federal de Minas GeraisUFMG, 2006-09-29)
Molten iron and slag flow play a critical role in the blast furnace lower zone, transporting mass and energy, whilst impairing and redistributing gas flow. In turn, molten iron and slag undergo physical and chemical changes, ...
A influência de adições de escória de alto-forno e ardósia finamente moídas nas propriedades dos concretos
(Universidade Federal de Minas GeraisUFMG, 2012-12-07)
The overall objective of this project was to analyze the behavior of concretes by additions of finely ground blast furnace slag and waste (scrap) of slate. To this end it was necessary to evaluate the behavior of concrete ...
Otimização da operação do alto-forno 1 da V&M do Brasil com "STAVE COOLER" através da distribuição de carga no topo do forno.
(Universidade Federal de Minas GeraisUFMG, 2006-10-31)
V&M Brazil Blast Furnace 1 is the first charcoal operating furnace in the world with copper "stave cooler". As a new technology, for this type of reactor, the furnace operation was started taking in account some basis ...
Uso dos resíduos da construção civil para a produção de pavimento intertravado a base de concreto de cimento portland e escória
(Universidade Federal de Minas GeraisUFMG, 2009-05-12)
Construction and demolition are two steps where the generation of waste is imperative, given the low industrialized processes. Due to the growth of cities, the demand for raw materials is becoming more expressive and their ...
Influência da adição de resíduo siderúrgico na performance do concreto
(Universidade Federal de Minas GeraisUFMG, 2009-08-07)
The reinsertion of waste production processes seeking to attend theenvironmental issue is being widely discussed in national and international forum. In the face of the observation that industries of manufacture and ...