浅谈不同给液方式在铜电解车间的应用

不同给液方式对铜电解过程中有重要的影响,不同的循环方式会影响槽内温度分布、电解液成分及阳极泥沉降等,因此,根据铜电解生产不同情况的需要,分析对比了多种给液方式在贵冶电解车间的应用,总结了这几种给液方式的优缺点和适用条件。     

Anode slime behaviour in a laboratory-scale copper electrorefining process

Combining conventional electrochemical measurements, laser-based visualization and digital image processing, the movement of anode slime, its spatial distribution and path of falling during the copper electrorefining process were investigated in a laboratory scale cell. Two types of anode slime, small agglomerates and fine particles were observed. The behaviour of the slime was found to be closely related to the electrolyte circulation pattern. Different circulation rates and direction can only change the magnitude of the falling rate of small agglomerates, but not its direction. The path of falling is essentially random. By contrast, the direction of circulation can change both the rate of movement and the direction in the case of fine-particle slimes. Downward circulation accelerates the rate of settling; the higher the circulation rate, the faster the rate of slime removal from the cell     

铜阳极泥湿法回收贵金属工艺研究

对广东花都稀有金属,贵金属冶炼厂铜阳极泥湿法回收贵金属工艺进行了研究试验,试验结果表明工艺是成功的,铜浸出率９５％以上,银浸出率９８％,金浸出率９６％,钯浸出率９５％。     

RP乳化剂在煤泥浮选中的作用

针对在煤泥浮选过程中,浮选药剂使用效果达不到要求的现状,进行了浮选药剂乳化的研究,得到了一种新的RP复合乳化剂,并已在选煤厂试用。结果表明,RP乳化剂是一种优良的浮选助剂,用它“合成”的捕收剂,使用时不仅耗量少,而且可大大改善煤泥的浮选效果。     

Optimization of design and operating parameters in a pilot scale Jameson cell for slime coal cleaning

The Jameson flotation cell has been commonly used to treat a variety of ores (lead, zinc, copper etc.), coal and industrial minerals at commercial scale since 1989. It is especially known to be highly efficient at fine and ultrafine coal recovery. However, although the Jameson cell has quite a simple structure, it may be largely inefficient if the design and operating parameters chosen are not appropriate. In this study, the design and operating parameters of a pilot scale Jameson cell were optimized to obtain a desired metallurgical performance in the slime coal flotation. The optimized design parameters are the nozzle type, the height of the nozzle above the pulp level, the downcomer diameter and the immersion depth of the downcomer. Among the operating parameters optimized are the collector dosage, the frother dosage, the percentage of solids and the froth height. In the optimum conditions, a clean coal with an ash content of 14.90% was obtained from the sample slime having 45.30% ash with a combustible recovery of 74.20%. In addition, a new type nozzle was developed for the Jameson cell, which led to an increase of about 9% in the combustible recovery value.     

TDI循环水的不停车化学清洗

介绍TDI公司循环水系统的运行概况和系统的在线清洗预膜过程,以及清洗预膜的效果。     

浅析选煤厂粗煤泥回收系统

介绍了几种常规的粗煤泥回收系统,阐述不同粗煤泥回收系统的特点和应用效果,说明粗煤泥回收系统在选煤工艺中的重要作用。     

添加矿物型MC凝聚剂实现煤泥水深度澄清的实验室试验

重点介绍矿物型MC凝聚剂和阴离子型聚丙烯酰胺絮凝剂联合添加促进煤泥水澄清的实验室试验过程及相关分析,试验的特点是用分光光度计和电导率仪进行模拟性试验。试验结果表明,采用MC凝聚剂能高效获得极为清净的澄清水。     

循环煤泥次生泥化现象的初步探讨

简述了粒度小于0.045 mm的细泥对浮选、煤泥水澄清的负面影响,重点对循环煤泥次生泥化试验结果进行比较与分析,并指出在选煤厂煤泥水流程中应尽可能避免煤泥局部小循环.     

粗煤泥干扰床分选机在三交河矿选煤厂应用

粗煤泥干扰床分选机是近年来引进的一项主要为解决原煤中3~0.5 mm粒级分选难题的洗煤新技术,通过对三交河洗煤厂原煤煤泥可选性的分析及试验室试验,三交河原煤中2 mm以下的颗粒在TBS中有非常良好的分选效果,TBS在现场生产可行。