CAJ | 학술논문

通过对泥浆毛细吸水时间(CST)的测定，分析了硫酸铝/聚丙烯酰胺(PAM)联合调质对泥浆脱水性能的影响，同时考察了加药时间间隔、搅拌时间、搅拌强度、总药剂投加量以及药剂配比对泥浆脱水效果的影响.当 PAM 进行单独投加时，PAM 投加量为3 mg·g-1时，泥浆的 CST 值最小，为17.4 s.当混凝剂硫酸铝和 PAM 进行联合投加时，硫酸铝投加量为1.5 mg·g-1，PAM投加量为3 mg·g-1时，泥浆的CST值降低到16.9 s.实验确定适宜的加药时间间隔为45 s，搅拌时间为120 s，搅拌强度为40 r·min-1.通过正交试验得到总药剂投加量和药剂配比对泥浆脱水效果影响的顺序为总药剂投加量＞药剂配比，且总药剂的最佳投加量为4 mg·g-1，药剂质量比PAM：Al2(SO4)3为1︰3.
통과대니장모세흡수시간(CST)적측정，분석료류산려/취병희선알(PAM)연합조질대니장탈수성능적영향，동시고찰료가약시간간격、교반시간、교반강도、총약제투가량이급약제배비대니장탈수효과적영향.당 PAM 진행단독투가시，PAM 투가량위3 mg·g-1시，니장적 CST 치최소，위17.4 s.당혼응제류산려화 PAM 진행연합투가시，류산려투가량위1.5 mg·g-1，PAM투가량위3 mg·g-1시，니장적CST치강저도16.9 s.실험학정괄의적가약시간간격위45 s，교반시간위120 s，교반강도위40 r·min-1.통과정교시험득도총약제투가량화약제배비대니장탈수효과영향적순서위총약제투가량＞약제배비，차총약제적최가투가량위4 mg·g-1，약제질량비PAM：Al2(SO4)3위1︰3.
The influence of polyacrylamide (PAM) conditioning combined with Al2(SO4)3 coagulant on Tongkeng mine slurry dewatering behavior was investigated by capillary water absorption time (CST) measurements. The depen-dence of the slurry dewatering behavior on interval time of adding chemicals, stirring time, stir intensity, total dosage of chemicals, and chemicals ratio were analyzed in detail. When adding PAM alone in the slurry, the CST reaches its minimum value of 17.4 s at the PAM dosage of 3 mg·g-1. But when simultaneously adding Al2(SO4)3 coagulant and 3 mg·g-1 PAM in the slurry, the CST decreases to 16.9 s at the Al2(SO4)3 dosage of 1.5 mg·g-1. The appropriate opreating conditions were experimentally determined as the interval time of adding chemicals of 45 s, the stirring time of 120 s, and the stirring intensity of 40 r·min-1. By means of orthogonal experiment design, the significance of parameters influencing the slurry dewatering behavior is in the order of total dosage of chemicals>chemicals ratios, and the optimal total dosage of chemicals is 4 mg·g-1, with the mass ratio of PAM and Al2(SO4)3 of 1︰3.