Structural Design And Numerical Simulation Of Static Disc Pressure Filter

As developed to deal with some special media which are generally hardto be separated, pressure filter is a kind of solid-liquid separation equipmentwhich can be widely used in mining, metallurgical, chemical, environmental,food and pharmaceutical industries, etc. Recently,scientists have developedsome pressure filters with different structures and operation mechanisms.Among them, static disc pressure filter is the new and effective solid-liquidseparation equipment. This thesis will be concentrated on the design and studyof the static disc pressure filter.Based on the study of the structures and mechanisms of the pressurizedfilters developed recently, a static disc pressure filter is structural designedwhich includes filter plate, end boards, spacers, gas-liquid pipe system, sealinghousing, scraper system, pressured and seal housing driving system, cakedischarging system, legs and housing design. Among them, supporting ringand supporting rib filter plates are key components of static disc pressure filter.A set of gas-liquid pipe system was specially designed for the static discpressure filter in order to be more suitable for the space change of the filterplate. Drawings for the whole filter as well as its parts are finished.Also in this thesis, stress and fluid flow analyses were performed. Thestress analysis is for the filter plate with a diameter of500mm series.Attentions are concentrated on the capability of the supporting ring andsupporting rib filter plates in resisting deformation or strength failure with theeffects of supporting ring spacing and supporting rib width. After that,strength analysis for the700mm and1000mm series filter plate were alsoconducted. Furthermore,The fluid flow analysis is mainly for the flow field simulation in theinitially designed feeding channel and improved feeding channel.Distributions of radial velocity, pressure and volume fraction of the second phase medium are obtained. Comparing of the results for the two channelsshows that the improved feeding channel is better than the initially designedone.