摘要
当前我国煤泥水采用浮选工艺时存在絮凝剂投入过量问题,造成絮凝沉降效果较低、絮凝剂浪费、浮选药剂成本较大的情况。从絮凝剂种类、絮凝剂相对分子质量、絮凝剂用量三方面因素对不同絮凝剂作用下的煤泥沉降性能及絮团特性进行研究。结果表明:阴离子型絮凝剂对比其他类型絮凝剂在煤泥沉降、上清液透射比值指标上效果显著;絮凝剂用量越大煤泥沉降速度越快,絮团粒径越大,上清液透射比值越大;采用小剂量药剂,相对分子质量为影响煤泥沉降关键因素,采用大剂量药剂,相对分子质量和用量均为影响煤泥沉降关键因素。
Currently,there is a problem of excessive input of flocculants in the flotation process of coal slurry water in China,resulting in low flocculation settling effect,waste of flocculants,and high cost of flotation reagents.Study the settling performance and flocculent characteristics of coal slurry under different flocculant effects from three factors:flocculant type,relative molecular weight of flocculant,and flocculant dosage.The results show that compared with other types of flocculants,anionic flocculants have significant effects on coal slurry sedimentation and supernatant transmission ratio indicators.The larger the dosage of flocculant,the faster the settling speed of coal slurry,the larger the particle size of flocs,and the higher the transmission ratio of the supernatant.Using low-dose chemicals,relative molecular weight is the key factor affecting coal slurry settling,while using high-dose chemicals,both relative molecular weight and dosage are the key factors affecting coal slurry settling.
作者
王静波
Wang Jingbo(Xiaoyi Emergency Management Bureau,Xiaoyi Shanxi 032300,China)
出处
《山西化工》
CAS
2024年第3期100-101,117,共3页
Shanxi Chemical Industry
关键词
絮凝剂
煤泥
沉降性能
絮团特性
flocculant
coal slurry
settlement performance
floc characteristics
