Projeto e operação de hidratadores industriais de cal virgem

• Ano de defesa: 2010
• Autor(a) principal: Parreira, Priciane Martins
• Orientador(a): Henrique, Humberto Molinar
• Banca de defesa: Barrozo, Marcos Antonio de Souza , Pasotto, Marlei Barboza
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Uberlândia
• Programa de Pós-Graduação: Programa de Pós-graduação em Engenharia Química
• Departamento: Engenharias
• País: BR
• Palavras-chave em Português: Cal; Leite de cal; Reologia; Hidratador; Agitador; Potência consumida; Cal - Indústria; Hidratação
• Palavras-chave em Inglês: Lime; Lime milk; Rheology; Slaked lime; Impeller; Power
• Área do conhecimento CNPq: CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA
• Link de acesso: https://repositorio.ufu.br/handle/123456789/15207

The product of the hydration process of lime, milk of lime, is a byproduct of lime commonly used industrially because it is present in the industrial processes of steel mill, chemical and sugar and alcohol. But the hydration process has been little studied and this dissertation aims to study the influence of the hydration process in the quality of product and the influence of quality of milk of lime in the efficiency of the industrial process which milk of lime is used. Through industry data found that the hydration process current and more useful for industrial is inappropriate and produces high amounts of residues that provide the company losses. In the industrial process the quality of milk of lime improves the performance of the industrial process by reducing the amount of material used and the amount of residue formed, consequently its accumulation in the equipment. And to produce a lime milk of good quality, high surface area and low amount of residue, you should use a mixing process suitable for the suspensions of lime milk with low particle sizes of lime and heating of initial water of hydration. And especially an efficient and appropriate agitation Therefore, the pilot of a unit of hydration was proposed and through this became the rheological behavior of suspensions of milk of lime and with these data, made up the study of power consumed by the agitator. It was also proposed changes on impeller to improve the efficiency of agitation and a system of residue removal at the end of hydration through rotary screens.