tel
+86-21-6420 0566
In the above, we introduced one of the methods to reduce collector consumption. We will introduce the second method - the efficiency enhancement method of recycling flotation circuits.
The recycling of flotation circuits aims to reprocess tailings, middlings, etc. in the flotation process, fully recover underutilized collectors and useful minerals, thereby maximizing the utilization of resources and effectively reducing collector consumption.
Operation method: Carry out secondary or multiple flotation operations for flotation tailings, select appropriate process and reagent conditions according to the nature of the tailings, and recover the useful minerals and collectors remaining in the tailings.
Case: A copper mine reselected flotation tailings. By adjusting the flotation reagent system and optimizing the process flow, it not only recovered a large amount of copper minerals, but also reduced the unit consumption of collectors by about 20%.
Operation method: Rationally plan the return method and location of middling to ensure that the collector and useful minerals in the middling can fully participate in the subsequent flotation process. According to the nature of the middling and the characteristics of the flotation process, scientific selection of direct return, graded return and other methods is required to improve flotation efficiency.
Case: A lead-zinc mine optimized the middling return system and adopted the graded return method to improve the utilization rate of collectors in middlings and reduce the collector consumption by about 18%.
Operation method: Develop and apply reagent recovery and regeneration technology to separate and recover collectors from flotation wastewater. For example, the collector is extracted from the wastewater by extraction, adsorption and other methods, and reused for flotation after treatment.
Case: A mineral processing plant uses adsorption to recover collectors from flotation wastewater, so that the collector recovery rate reaches about 60%, and the total collector consumption is reduced by about 25%.
By implementing flotation loop recycling measures, the collector consumption can be significantly reduced. Based on the application cases of multiple mines, after the rational application of technologies such as tailings re-selection, middling return optimization and reagent recovery and regeneration, the unit consumption of collectors can be reduced by 15%-25%, while the recovery rate of useful minerals is improved, achieving a win-win situation of economic and environmental benefits.
