PWDL多吸頭排污泵貴金屬礦石浮選工藝
50確定含金礦 石工藝流程時要注意什么?
含金礦石選別工藝流程取決于礦石中的金和其他有價組分的賦存狀態(tài)和嵌布特性，以及礦床的儲量規(guī)模和建廠條件。
任何一種含金礦石都各有其特性，即使同一礦床，深部和淺部的礦石性質也有差異，因此選別方法也會不同，合理的工藝流程必須經過小型試驗或擴大試驗才能確定。
確定選別工藝流程時，應注意以下幾點。
(1) 提前回收大粒金
對含有大粒金(>0. 1mm)的含金礦石，應設重選或混汞作業(yè)盡早回收，以免這部分金在選別過程中流失和分散積存在設備及管路中。
(2)泥砂分選
當礦石中含有含金礦泥或幾乎不含金的礦泥時，為了有效地回收金，可根據礦泥和礦砂不同的含金特點分別進行浮選、重選和氰化，可以提高金的回收率，并增大處理量。
(3)階段磨礦階段選別
礦石中的金呈粗細不均勻狀態(tài)嵌布時，可采用階段磨礦階段選別工藝提高金的回收率。
(4) 采用選冶(水冶)聯(lián)合流程
由于金在礦石中的賦存狀態(tài)和嵌布粒度不同，與金共生的金屬礦物含量各異，采用單獨一種選礦 方法往往回收率較低，有價元素也得不到合理的利用，除少數礦石僅采用一種選礦方法即可獲得較高的金回收率外，絕大多數礦石必須用選冶聯(lián)合流程，才能獲得較高的金回收率,
Flotation process of precious metal ore with pwdl multi suction sewage pump
What should be paid attention to when determining the technological process of gold ore?
The beneficiation process of gold bearing ore depends on the occurrence and dissemination characteristics of gold and other valuable components in the ore, as well as the reserve scale and plant construction conditions of the deposit.
Any kind of gold bearing ore has its own characteristics. Even for the same deposit, the deep and shallow ore properties are also different, so the separation method will be different. The reasonable technological process must be determined by small-scale test or extended test.
Attention should be paid to the following points when determining the beneficiation process flow.
(1) Recovery of large grains of gold in advance
For gold ore containing large grains of gold (> 0.1 mm), gravity separation or mercury mixing operation should be set up to recover as soon as possible, so as to avoid the loss and dispersion of this part of gold in the separation process and deposit in the equipment and pipeline.
(2) Mud sand separation
In order to effectively recover gold, flotation, gravity separation and cyanidation can be carried out according to the different gold bearing characteristics of slime and ore, which can improve the recovery rate of gold and increase the treatment capacity.
(3) Stage grinding and stage separation
When the gold in the ore is unevenly distributed, the stage grinding and stage separation process can be used to improve the recovery rate of gold.
(4) Combined process of beneficiation and Metallurgy (hydrometallurgy) is adopted
Due to the different occurrence and distribution of gold in the ore, the content of metal minerals associated with gold is different, so a single mineral processing method is adopted The recovery rate of the method is usually low and the valuable elements can not be reasonably utilized. Except for a few ores which can obtain high gold recovery by only one mineral processing method, the vast majority of ores must use the combined process of dressing and metallurgy to obtain high gold recovery,
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