水雾荷电振弦纤维栅除尘器除尘性能影响因素的实验研究

摘要

<中作者单位四>=江西理工大学 资源与环境工程学院,江西 赣州 341000;江西省矿冶环境污染控制重点实验室,江西 赣州 341000为研究除尘系统结构最优配置,实验采用新型高效水雾荷电振弦栅除尘方法,以除尘效率及阻力损失为参照结果,选定纤维栅板数量、纤维栅与喷嘴间距、纤维栅材料和间隙4个因素进行单因素试验,针对各因素对纤维栅除尘效率的影响进行了分析研究,结果表明多块纤维栅除尘效果明显优于单块纤维栅,正常处理风速时3块纤维栅的除尘效率最高,纤维栅阻力与其数量呈正比;纤维栅除尘效率随间距增大而先增后减,间距为230 mm时除尘效率最高;塑胶纤维栅除尘效果明显优于其他材料,各阻力值排序为:塑胶>涤纶>不锈钢>尼龙;纤维栅除尘效率随纤维间隙增大而降低,其阻力随间隙增大而减小;利用SPSS软件进行4因素三水平正交试验分析,在特定条件下除尘效率显著性排序为:纤维栅数=纤维栅间隙>纤维材料>纤维栅与喷嘴间距;阻力损失显著性排序为:纤维栅数=纤维栅间隙=纤维材料=纤维栅与喷嘴间距;试验最佳配置为3块间隙0.6 mm尼龙纤维栅板,且纤维栅板距喷嘴最小间距为185 mm.%In order to study the optimal configuration for the structure of dust removal system, the single factor experiments were carried out on four factors including the number of fiber grids, the spacing between fiber grid and nozzle, the material of fiber grid and the clearance between fiber grids by using the new high efficiency dust removal method with charged water mist vibration fiber grid and taking the dust removal efficiency and the resistance loss as reference results, then the influence of each factor on the dust removal efficiency of fiber grid was studied.The results showed that the dust removal effect of multiple fiber grids is better than that of single fiber grid, the dust removal efficiency of three fiber grids under normal processing wind speed is the highest, and the resistance of fiber grid is proportional to its number.The dust removal efficiency of fiber grid increases first and then decreases with the increasing spacing, and it is the highest when the spacing is 230 mm.The dust removal effect of plastic fiber grid is significantly better than other materials, and the order of resistance is plastic, polyester, stainless steel and nylon from large to small.The dust removal efficiency of fiber grid decreases with the increase of clearance, and its resistance decreases with the increase of clearance also.The orthogonal experiments of four factors and three levels were analyzed by SPSS software.The significance order of dust removal efficiency under specific conditions is the number of fiber grids, which is equal to the clearance between fiber grids, the material of fiber grid, and the spacing between fiber grid and nozzle from large to small, and the significance order of resistance loss is all equal for four factors.The best experimental configuration is three nylon fiber grids with the clearance of 0.6 mm, and the minimum spacing between fiber grid and nozzle is 185 mm.