铝土矿尾矿絮凝剂筛选试验研究

COMPONENT ANALYSIS OF CALCIUM COMPOUNDS IN CALCIUM-BASED DESULFURIZER

对铝土矿尾矿进行絮凝沉降实验,研究絮凝剂种类及用量、助凝剂种类对铝土矿正浮选尾矿矿浆沉降行为的影响.研究表明PAC、PAFC、PFS作为絮凝剂使用时,虽然出水较为澄清,但是沉降速度过慢;而PAM作为絮凝剂使用时,沉降速度快,絮团紧实,具有很好的实际应用性,0.5、1、1.5h澄清液面高度分别为：7.2、7.5、7.7cm,主要沉降作用发生在0～0.5h阶段.PAC、PAFC、PFS作为助凝剂与PAM配合使用时,具有较好的絮凝效果,能互相弥补彼此缺点,0.5、1、1.5h澄清水位高分别为3.5、5.1、5.6cm,PFS用量为300mg/L的时候,SS为最小值265mg/L,与单独使用PAM10mg/L相比SS下降了约180mg/L.

Have flocculat sedimentation experiments on bauxite railings ,research influence of flocculant type and amount and type of coagulant aids on bauxite flotation railings slurry set- tling behavior.Studies show that while the PAC, PAFC, PFS use as a flocculant, although the water more clarification, but settling velocity is too slow. When PAM use as a flocculant, it have the fast settling velocity and dense floc, has a good practical application.0.5,1, 1.5h Supernataut height are： 7.2,7.5,7.7 cm, major subsidence occurred in 0-0.Sh stage.While PAC, PAFC, PFS use as a coagulant conjunction with PAM , have a good flocculation effect and can make up for each other shortcomings.0.5,1,1.5h Supernatant height are 3.5,5.1,5.6 cm .when amount of PFS is 300mg/L, SS is the minimum value of 265mg/L. Compared to used alone PAMIOmg/L, SS decreased about 180mg/L.