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Red Mud Filtration Test Results using AFP IV? Automatic Filter Press

机译:使用AFP IV进行红色泥浆过滤测试结果?自动压滤机

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The results of pressure filtration testing demonstrates that arnstandard design FLSmidth AFP IV? filter press can dewater redrnmud from initial feed concentrations of between 30 - 44 wt% andrnproduce final cakes containing 67 - 70 wt% solids. This paperrnoutlines various factors affecting the filtration rate and final cakernsolids concentration such as feed solids concentration, slurryrntemperature and feed pump delivery rate/pressure relationship asrnwell as the configuration of the filter plates. The results arernpresented for different bauxite grades. Additional testing wasrnperformed to obtain filter cakes containing 75 wt% cake solids byrnevaluating high-pressure filtration at 30 - 60 bar using bothrnrecessed plate and membrane plate configurations. The testsrndemonstrate that high-pressure filtration above 30 bar can producern75 wt% solids.
机译:压力过滤测试的结果表明,采用标准设计的FLSmidth AFP IV?压滤机可将初始进料浓度在30-44 wt%之间的赤泥脱水,并生产出含67-70 wt%固体的最终滤饼。本文概述了影响过滤速度和最终饼状固体浓度的各种因素,例如进料固体浓度,浆液温度和进料泵输送速度/压力关系以及滤板的配置。给出了不同等级铝土矿的结果。通过使用凹板和膜板配置对30-60 bar的高压过滤进行重新评估,进行额外的测试,以获得包含75 wt%滤饼固体的滤饼。该测试表明,高于30 bar的高压过滤可产生75 wt%的固体。

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