Use Of Industrial Waste Residue Preparation Of Ceramic Filter Ball

Based on the analysis of componen, differential thermal, diffraction, plasticity, the ceramic filtration ball with high void volume and high strength was made of industrial waste residue, such as alumina red mud, fly ash of coal, coal slack. After carrying out some experimentations, including orthogonal test, voidance test, plasticization test, reinforcement test, the optimal directions for producing ceramic filtration ball were otained, it's fly ash 20% , red mud 50%,coal slack 20%, clay 10%, A type hollow agent 20%, plastic clay 10%, supporting fusion agent 4%.The results of experimentations of processing of materials, beading, drying showed the micropore rate was influenced by material process, micropore formation reagent, additives, the type of molding, and the strength was influnced greatly by the temperature. The results also showed that the best roasting temperature range was 1050℃ - 1200℃. Fluxing reagent did good to produce liquid phase that could improve the strength of the sample, avoiding to flow. The plastic clay was help to the plastic and molding of balls, it could also improve their crushing strength.The performance of ceramic filtration balls were detected by XRD and SEM. The results of XRD showed that the components of balls werea- quartz, cristobalite, Fe₂O₃, Ca₂Al₂SiO₇, NaAlSi₃O₈, CaAl₂Si₂O₈, KAlSi₃O₈ and 3Al₂O₃·2SiO₂, etc. The results of SEM showed that the ceramic filtration balls had much little air hole distributed equably, which structure was three-dimensional. The micropore rate of ceramic filtration ball made of waste residues as raw material was 55.66%, strength was 0.779KN, the properties were better than others in the market at present.