新型煤泥重介质旋流器结构试验研究

发布时间：2018-08-06 17:17

【摘要】：煤泥重介质旋流器是目前公认的高精度分选粗煤泥设备,它是利用粗煤泥在设备中受到的离心力完成分选。FHMC200型煤泥重介质旋流器是北京国华科技集团研发的分选设备,本次试验以该型号设备为基础对象,通过采取其改变溢流口、底流口和入料口径的措施,增大了其处理量。取溢流口因素2个水平,底流口因素4个水平进行正交试验,研究选取最佳结构搭配,试验结果以处理量、可能偏差、数量效率、实际分选密度和总错配物含量为评价指标,通过直观分析方法、极差分析方法和方差分析方法检验因素水平的显著性,对试验指标进行综合比较分析,选择最佳水平组合,优化结构参数。正交试验结果表明：1、随着底流口直径的增大,可能偏差先略有降低后大幅升高,实际分选密度逐渐降低,总错配物含量逐渐增大,数量效率逐渐降低；2、溢流口直径M1mm,底流口直径70mm,为最佳结构参数组合,其处理量比原FHMC200煤泥重介质旋流器增加了约19.5%。
[Abstract]:The slurry heavy medium cyclone is recognized as a high precision separation equipment for coarse slime. It is the separation equipment developed by Beijing Guohua Science and Technology Group, which uses the centrifugal force of coarse slime to complete the separation of .FHMC200 type coal slime heavy medium cyclone. This test takes this type of equipment as the basic object, by adopting the measures of changing the overflow port, the bottom flow port and the inlet caliber, the processing capacity is increased. Two levels of overflow factors and four levels of bottom outlet factors were taken to carry out orthogonal experiments, and the optimum structure was selected. The results of the experiments were as follows: treatment capacity, possible deviation, quantity efficiency, actual sorting density and total mismatch content. Through visual analysis method, range analysis method and variance analysis method to test the significance of factor level, the test index is comprehensively compared and analyzed, the optimum level combination is selected, and the structural parameters are optimized. The results of orthogonal test show that with the increase of the diameter of the bottom outlet, the possible deviation decreases slightly and then increases significantly, the actual separation density decreases gradually, the total mismatch content increases and the quantity efficiency decreases. 2, the diameter of overflow port M 1mm and the diameter of bottom outlet 70 mm, which is the best combination of structural parameters, and its handling capacity is about 19.5g more than that of the original FHMC200 coal slime heavy medium cyclone.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TD94;TD45

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