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Design and fabrication of a spiral classifier for off-shore sand washing

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dc.contributor.author Udawatte, NBB
dc.contributor.author Siriwardene, HP
dc.contributor.author Samaratunga, SPND
dc.contributor.author Udayanga, WAC
dc.contributor.author Rupasinghe, SN
dc.contributor.author Theeparuban, B
dc.contributor.author Fernando, WLW
dc.contributor.editor Karunaratne, S
dc.date.accessioned 2022-06-23T07:14:41Z
dc.date.available 2022-06-23T07:14:41Z
dc.date.issued 2008-05
dc.identifier.citation Udawatte, N.B.B., Siriwardene, H.P., Samaratunga, S.P.N.D., Udayanga, W.A.C., Rupasinghe, S.N., Theeparuban, B., & Fernando, W.L.W. (2008). Design and fabrication of a spiral classifier for off-shore sand washing. In S. Karunaratne (Ed.), Proceedings of the 3rd Annual Conference on Mining for Sustainable Development – A Multidisciplinary Approach (pp. 21-24). Department of Earth Resources Engineering, University of Moratuwa. en_US
dc.identifier.uri http://dl.lib.uom.lk/handle/123/18358
dc.description.abstract The rapid growth of construction industry has created a significant demand for sand. Consequently, it has increased the exploitation rate of river sand giving rise to adverse environmental impacts. Therefore, the tendency now is to find alternatives for river sand avoiding massive environmental damages. Among the potential alternatives, offshore sand could be the best alternative, because of particle size distribution and availability. However, the demand on offshore sand is low, due to its soluble Cl- content which could influence badly on the structural properties of concrete. As a solution, sea sand could be stored in open air until the Cl- content is decreased to acceptable limits (<0.075% by weight) under the influence of rain water. However, considering the increasing demand and changing weather patterns, the above method appears to be inappropriate to meet the demand. In this research, a spiral classifier was designed and fabricated in order to wash offshore sand from salts and other suspended materials. The separation is done on sea sand by optimizing critical parameters of the spiral classifier such as feed rate, rotational speed of spiral, inclination angle of the spiral and weir height. en_US
dc.language.iso en en_US
dc.publisher Department of Earth Resources Engineering en_US
dc.subject Acceptable limit en_US
dc.subject Cl- content en_US
dc.subject Demand for sand en_US
dc.subject Offshore sand en_US
dc.title Design and fabrication of a spiral classifier for off-shore sand washing en_US
dc.type Conference-Full-text en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Earth Resources Engineeirng en_US
dc.identifier.year 2008 en_US
dc.identifier.conference 3rd Annual Conference on Mining for Sustainable Development - A Multidisciplinary Approach en_US
dc.identifier.place Katubedda en_US
dc.identifier.pgnos pp. 21-24 en_US
dc.identifier.proceeding Proceedings of the 3rd Annual Conference on Mining for Sustainable Development - A Multidisciplinary Approach en_US
dc.identifier.email wlwf2002@yahoo.com en_US


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