2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 10: Mineral & Secondary Battery
| Editors: | Kongoli F, Silva AC, Arol AI, Kumar V, Aifantis K |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2015 |
| Pages: | 340 pages |
| ISBN: | 978-1-987820-33-1 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Limestone Fines Briquetting
Andre Carlos Silva1; Elenice Maria Schons Silva1; Mariana Rezende Barros1;1UNIVERSIDADE FEDERAL DE GOIAS, Catalao, Brazil;
Type of Paper: Regular
Id Paper: 214
Topic: 5
Abstract:
Application of technology in agriculture within the system of production is mostly reality with the opening of markets through globalization. In many areas of modern industry, the limestone, especially in the field, is used as a broker of the acidity of the soil. The liming is a cheap practice, however still is neglected as to its use, in the adoption of the technique, the definition of doses and application forms. The briquetting consists of the agglomeration of fine particles through pressure, aided by agglutination, allowing not only products, but compressed with shape, size and mechanical parameters suitable. The reduction of size of material, in addition to technological benefits, allows thin materials can be transported and stored more economically. The recent environmental concern, resulting in stricter laws, in addition to the need to take advantage of economic waste and fine particles generated in the beneficiation of minerals made briquetting could be an important alternative for agglomerating economic value. The aim of this work was to agglomerate through the limestone fines briquetting (92% below 500 # or 25 µm) generated in processing the same, varying dosages of water (used as a binder) of 0; 5; 7.5; 10; 12.5 and 15%. The limestone from Lagamar (MG) has been classified chemically as dolomitic type D. The briquettes were subjected to drop tests at 30, 60, 90, 120 and 150 cm height. The best results found for drop tests were obtained with 7.5% humidity, with averages of 21 drops of 30 cm and 10 drops of 60 cm height. Such results were favorable when compared to literature, which mentions that for briquettes without cure, considered 3 drops at 0.3 m height as a reasonable value. Result obtained is seven times greater than the least required.
References:
[1] NAHASS, S.; SEVERINO, J. Calcário Agrícola no Brasil. CETEM/MCT. Rio de Janeiro, 2003.[2] PRADO, R. M. A calagem e as propriedades físicas de solos tropicais: revisão de literatura. Departamento de Solos e Adubos, Faculdade de Ciências Agrárias e Veterinárias da Universidade Estadual Paulista. Revista Biociências, Taubaté, v.9, n.3, p.7-16, jul.-set. 2003.
[3] VOLKWEISS, S. J.; TEDESCO, M. J.; GIANELLO, C.; BISSANI, C. A.; BOHNEN, H. Análise de solo, plantas e outros materiais. 2. ed. Porto Alegre: UFRGS, 1995. 174 p. (Boletim Técnico, 5).
[4] CARVALHO, E. A.; BRINCK, V. Briquetagem. Centro de Tecnologia Mineral Ministério da Ciência e Tecnologia. Coordenação de Processos Minerais – COPM, Rio de Janeiro, 2010.
[5] SAMPAIO, J. A.; ALMEIDA, S. L. M. Rochas e Minerais Industriais. In: LUZ, A. B.; LINS, F. A. F. 2° edição. Capítulo 15, Calcário e Dolomito Rio de Janeiro: CETEM/MCT, 2005.