Xinhai Mechanical Design Institute focuses on the design and research of mineral processing equipment for over 20 years, who has required numerous technical achievements in the ball mill, the combination of KYF flotation cell and XCF flotation cell and updated high-efficiency thickener.
Recently, Xinhai Mining with mineral processing EPC+M+O service successively appeared the 4th China Copper Industry Science and Technology Development Exchange Conference and China Cyanide Tailing Dealing and Comprehensive Utilization Technology Exchange Conference. Xinhai discussed the technology development result with peers and constantly increasing industry influence.
China's potassium feldspar rich resources are few, and often coexist with other impurity minerals, especially a small number of impurities such as iron and titanium, which affect its quality and application, so it needs impurity removal. At present, the main impurity removal methods of potassium feldspar are magnetic separation, flotation separation, acid leaching process and combined process. Specifically, the appropriate impurity removal process should be selected according to the occurrence state of impurity minerals and the embedded particle size.
seven tricks to improve the fluorite flotation index: ensure proper grinding fineness, properly raise the slurry temperature, correct selection of flotation reagents and dosage, maintain proper slurry level, selecting a reasonable slurry pH, pre-softened water and optimize flotation process.
At present, the common tin ore processing processes mainly include gravity separation, flotation and magnetic separation.
The tailings dry discharge is a new tailings processing process gradually emerging at home and abroad, that is, after the tailings slurry is concentrated in multiple stages, and then processed by efficient dewatering equipment such as dewatering vibrating screen to form slag with small water content, easy to precipitate, solidify and be stacked. The slag can be transported to a fixed location for dry storage.
In various kinds of gold ores, the Carlin-type gold ore is a kind of finely disseminated gold deposit mainly produced in carbonate rocks. This gold ore relatively low, the metallogenic scale is large, and the gold particle size is fine. The main gangue minerals include quartz, calcite, barite, kaolinite, etc., which are difficult to recycle gold mines. The harmful elements such as arsenic and mercury may cause environmental pollution if not handled properly. Next, let’s take a look at the processing difficulties of Carlin-type gold mines and their processing technology.
Hematite, a relatively large mineral resource of weakly magnetic iron ore resources, mainly covers hematite, pseudo-iron ore, specularite, and a small amount of siderite and limonite, etc. Among hematite processing methods, flotation separation is one of the common processing methods. Compared to other processing methods, flotation can effectively extract high-quality iron ore from fine-grained materials, thus providing high-quality raw materials for steel production.
Usually, according to different ore properties, different tailings treatment and recovery processes will be used for iron tailings re-processing. In general, iron tailings re-processing mainly includes the process of magnetic separation, gravity separation, flotation and combined separation methods.
With the increasing of copper mining resources, copper tailings emissions increases as well. Copper tailing is made up of the fine sands from copper ore crushing and concentration. There are an amount of metal and nonmetal minerals to be reprocessed. Suitable reprocessing technology can recycle them. It has an important meaning to the comprehensive utilization of copper tailings. In actual production, different types and characteristics of copper tailings need different mineral processing methods. In this passage, we will introduce you the copper tailing physical and chemical properties, and two types of common copper reprocessing methods: vulcanization flotation and leaching.
The flotation used in the silica sand processing can not only remove the mica, feldspar minerals, but also folate the phosphorus, iron and other minerals, and remove the broken and grinding mixed with secondary pig iron.
The pre-beneficiation of iron ore is the iron beneficiation between suitable crushing and grinding with responsible equipment according to different ore characteristics. It is to discard part of tailings in coarse conditions.
The tailings dry stacking is a new tailings processing method in recent years. The tailings dry stacking technology can relieve the capacity pressure of tailings pond storage, reduce the safety hidden danger of tailings pond and increase the means of tailings reprocessing, which is a kind of tailings processing technology to realize the green mine.
In mineral processing solution, flotation has a large application. It is complicated. There are many factors influencing flotation technology, including ore characteristics, grinding fineness, slurry concentration, pharmacy system and so on. The flotation effect is closely related to these factors. At the same time, the flotation flow solutions are multiple, such as fully mixed flotation, part mixed flotation, asynchronous flotation, and priority flotation. A flotation experiment is essential to ensure the suitable processing condition, to customize reasonable flotation flow, and obtain the ideal recovery result.