{"title":"The effect of moisture on the strength of pellets from froth floated coals","authors":"O.O. Onyemaobi","doi":"10.1016/0167-9031(90)90993-3","DOIUrl":null,"url":null,"abstract":"<div><p>Coal pelletization offers a solution to the handling problems associated with coal fines. The literature suggests that feedstock moisture content limits are dependent upon the ash content of the material. It was felt that this dependency should be tested for British froth floated coals. Different coal samples were collected from various British Coal mines. Analysis indicated that a wide range of froth floated coal types had been selected. Pellet growth rates, fracture loads (green and dry) were examined. Results showed that pellet strength was directly related to both pelletising time and feedstock moisture content as well as being influenced by particle size, finer particles producing stronger pellets. The size/strength relationship followed the form <em>Y = KD<sup>n</sup></em> where <em>n</em> varied between 1.09 and 2.30. Unsuccessful attempts were made to relate basic results to the ash of the feed material.</p></div>","PeriodicalId":100929,"journal":{"name":"Mining Science and Technology","volume":"11 3","pages":"Pages 287-297"},"PeriodicalIF":0.0000,"publicationDate":"1990-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-9031(90)90993-3","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mining Science and Technology","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0167903190909933","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
Coal pelletization offers a solution to the handling problems associated with coal fines. The literature suggests that feedstock moisture content limits are dependent upon the ash content of the material. It was felt that this dependency should be tested for British froth floated coals. Different coal samples were collected from various British Coal mines. Analysis indicated that a wide range of froth floated coal types had been selected. Pellet growth rates, fracture loads (green and dry) were examined. Results showed that pellet strength was directly related to both pelletising time and feedstock moisture content as well as being influenced by particle size, finer particles producing stronger pellets. The size/strength relationship followed the form Y = KDn where n varied between 1.09 and 2.30. Unsuccessful attempts were made to relate basic results to the ash of the feed material.
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