Reintegração dos finos provenientes do beneficiamento de argila no processo de produção de revestimentos via seca
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Data
2006-12-01
Autores
Roveri, Carolina Del [UNESP]
Zanardo, Antenor [UNESP]
Motta, José Francisco Marciano
Título da Revista
ISSN da Revista
Título de Volume
Editor
Escola de Minas
Resumo
Na região de Rio Claro (SP), localiza-se o Pólo Cerâmico de Santa Gertrudes, responsável por cerca de 50% da produção nacional de revestimentos. Durante o beneficiamento da argila e preparação da massa, cerca de 2 a 3% argila fina é colocada em suspensão no ar, sendo quase toda retida nos filtros de manga. Esse material fino, por problemas de homogeneização ou tecnológico, representa perda de material e se constitui em um potencial agente de contaminação do ar e da água, necessitando ser armazenado. A presente pesquisa buscou viabilizar o aproveitamento do pó retido nos filtros, no próprio processo, através da granulação da massa por aspersão de barbotina preparada com o pó. Investigaram-se a composição ideal da barbotina e a influência dessa metodologia no produto final, comparando a massa granulada por aspersão com a massa-padrão.
In the region of the Rio Claro (SP) is located the Santa Gertrude's Ceramic Pole, responsible for around 50% of the national ceramic tile manufactured. During the clay's ore treatment and powder preparation, 2 to 3 percent of the fine clay is lost in the air, in suspension. Almost all the material is restrained in bag filters. Currently, because of blending problems, this fine material represents a loss of material, which could become a potential agent for air and water contamination, and this material needs to be stored. This research examined the possible use for the filter-bag dust while in process, through granulation of the material by aspersion of the barbotine prepared with a powder. We investigated the ideal composition of the suspension and the influence of this method in the end product, comparing the granulated mass by aspersion with the standard mass.
In the region of the Rio Claro (SP) is located the Santa Gertrude's Ceramic Pole, responsible for around 50% of the national ceramic tile manufactured. During the clay's ore treatment and powder preparation, 2 to 3 percent of the fine clay is lost in the air, in suspension. Almost all the material is restrained in bag filters. Currently, because of blending problems, this fine material represents a loss of material, which could become a potential agent for air and water contamination, and this material needs to be stored. This research examined the possible use for the filter-bag dust while in process, through granulation of the material by aspersion of the barbotine prepared with a powder. We investigated the ideal composition of the suspension and the influence of this method in the end product, comparing the granulated mass by aspersion with the standard mass.
Descrição
Palavras-chave
Revestimentos, via seca, finos, matéria- prima, beneficiamento, Ceramic tiles, dry milling, fine particles, raw material, improvement
Como citar
Rem: Revista Escola de Minas. Escola de Minas, v. 59, n. 4, p. 379-383, 2006.