文章基本信息

标题：Gravitation Auger Water Separator from a Suspension of Wet Bulk Material
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作者：Leopold Hrabovský ; Antonín Durna ; Jiří Fries 等
期刊名称：Advances in Science and Technology Research Journal
印刷版ISSN：2080-4075
电子版ISSN：2299-8624
出版年度：2020
卷号：14
期号：4
页码：58-67
DOI：10.12913/22998624/123284
语种：English
出版社：Society of Polish Mechanical Engineers and Technicians
摘要：The paper deals with the problem of water separation from a mixture of wet loose material using a worm, or au-ger, dewaterer, whose working element is a full auger with variable thread pitch, rotating in a fixed trough. Theextrusion of water from the wet material suspension, consisting of a mixture of mineral wool tufts and granules,is effected in the auger dewaterer by entraining and compressing the wet bulk material through the threads, thevaried pitch of the conical screw, and the rotation of the auger.The thread faces and thread edges of an improperlydesigned screw of the auger dewaterer by Advanced Metal Powders s.r.o. showed notable wear from the appliedpressure of the packed wet bulk material (passing through the threads of the different pitch of the conical auger).Finding the cause of the severe abrasion and preventing excessive further wear of the auger was the subject of theo-retical calculations and experimental verification tests, whose main conclusions are presented in this paper. Thepaper gives the relations that allow calculation of the volume of bulk material in individual sections of the augerdewaterer. The calculated values from these relationships, were verified and compared with the values read fromthe 3D CAD system for designing SolidWorks Premium 2012 SP 5.0 models.The percentage compression valuesof the loose material in the threads of differential pitch of the conical auger of the unsuitably designed auger-screwdewaterer by Advanced Metal Powders s.r.o. allowed us to define recommendations that, applied, would ensuremalfunction-free operation of the auger-screw dewaterer.
关键词：auger; wet bulk material; gravitational dewatering; stone mineral wool; worm dewaterer