Tungsten tin is an important metal mineral widely used in fields such as electronics, military industry, aerospace, etc. The tungsten tin beneficiation process is an important link in the processing of tungsten tin ore. Its purpose is to separate the tungsten tin minerals from the raw ore for subsequent processing and utilization. This article will introduce the detailed steps and precautions of the tungsten tin beneficiation process flow.
1、 Overview of tungsten tin beneficiation process flow
The tungsten tin beneficiation process mainly includes four stages: ore crushing, grinding, flotation, and selection. Among them, ore crushing refers to breaking the original ore into appropriate particle sizes for subsequent grinding and flotation operations. Grinding is the process of further grinding the crushed ore to make its particle size more uniform. Flotation is the use of differences in surface properties of minerals to separate tungsten tin minerals from other impurities. Selection is the further separation and purification of the flotation tungsten tin concentrate to obtain high-purity tungsten tin products.
II. Detailed explanation of tungsten tin beneficiation process flow
1. Ore crushing
Ore crushing is the first step in the tungsten tin beneficiation process, with the aim of crushing the raw ore into appropriate particle sizes. The ore crushing equipment mainly includes jaw crushers, cone crushers, and impact crushers. The selection of crushers should be comprehensively considered based on factors such as the hardness, particle size, and yield of the raw ore. The particle size of crushed ore is generally controlled at around 10-20mm.
2. Grinding
Grinding is the process of further grinding the crushed ore to make its particle size more uniform. The grinding equipment mainly includes ball mills, AG mills, and SAG mills. The purpose of grinding is to refine the crushed ore particles to below 0.074mm for subsequent flotation operations. When grinding, attention should be paid to controlling the size and proportion of the grinding medium to ensure a balanced grinding effect and wear degree.
3. Flotation
Flotation is the core process of tungsten tin beneficiation, with the aim of utilizing the differences in mineral surface properties to separate tungsten tin minerals from other impurity minerals. The flotation equipment mainly includes flotation machines, stirring drums, and flotation agents. The selection of flotation agents should be comprehensively considered based on factors such as the mineral composition of the original ore and flotation conditions. During flotation, attention should be paid to controlling the flotation conditions, including the dosage of flotation agents, reagent ratio, stirring speed, and gas flow rate, to ensure the effectiveness of flotation.
4. Selection
Selection is the further separation and purification of the flotation tungsten tin concentrate to obtain high-purity tungsten tin products. The selected equipment mainly includes heavy medium separation, magnetic separation, and electrical separation. During the selection process, attention should be paid to controlling the selection conditions, including the specific gravity of the beneficiation medium, magnetic field strength, and electric field strength, to ensure the effectiveness of the selection and product quality.
III. Precautions
The various links in the tungsten tin beneficiation process should be closely coordinated to ensure the processing efficiency and product quality of the ore.
2. During ore crushing and grinding, attention should be paid to controlling particle size and wear degree to ensure the effectiveness of subsequent operations.
3. During flotation, attention should be paid to controlling the flotation conditions, including the amount of flotation agent, reagent ratio, stirring speed, and gas flow rate, to ensure the effectiveness of flotation.
4. During the selection process, attention should be paid to controlling the selection conditions, including the specific gravity of the beneficiation medium, magnetic field strength, and electric field strength, to ensure the effectiveness of the selection and product quality.
In summary, the tungsten tin beneficiation process is an important part of tungsten tin ore processing, and its operating steps and precautions are crucial for obtaining high-purity tungsten tin products. Strengthening the research and improvement of beneficiation process will play a positive role in promoting the development and utilization of tungsten Xikuangshan Mine.
