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Click to add WeChatGold mines can be divided into gold-forming mines, gold-bearing mines, gold-bearing mines, etc. according to the gold content of the minerals and the composition structure of the minerals. These gold mine resources are rare precious metal resources. In order to avoid resource waste during gold mine beneficiation, beneficiation technology is very important. Gold mine beneficiation plants basically use two methods, gold mine flotation process and gold mine chlorination process. When selecting the appropriate process according to the nature of the gold mine, it is necessary to analyze the nature and specifications of the gold mine.
When flotating gold ore, we should not only pay attention to reducing the loss of gold ore but also pay attention to protecting the environment. Flash flotation process is a kind of flotation technology. Because the flotation time of this process is very short, it is called flash flotation. This method can recover gold resources more economically. Rapid flotation has been widely adopted, which can effectively improve the efficiency of mineral processing. This article introduces the principle, function, influencing factors and application of flash flotation process in gold ore dressing, helping you to better understand the flash flotation process.
Because the mineral surface is hydrophobic, it can gather in liquid and gas. The target mineral gold ore will be closely combined with bubbles and then float to the surface of the liquid and recovered as a foam product. In the process of flash flotation, reagents need to be added to improve efficiency. There are many types of reagents to choose from, such as collectors, adjusters and frothers. The specific type of reagent should be combined with the nature of the gold mine, and the specific problem should be analyzed specifically, and the order, position and dosage of reagent addition should be adjusted according to the process.
Flotation operation is inseparable from flotation equipment. The structure of the flotation machine is a series of grooves. During flotation, the slurry needs to be fully stirred and aerated, and flotation reagents are added to allow the target mineral particles to combine with bubbles. The bubbles are forced to float up, and a foam layer is formed on the surface of the slurry. The foam layer is scraped off to collect gold ore particles.
During flash flotation, since the flotation time is very short, the gangue minerals do not have time to float up, so the ore and gangue minerals can be effectively separated. In addition, the slurry concentration used in the flash flotation process is very high, and the quality of the selected ore is also very high.
The functions of the flash flotation process are mainly divided into two categories: reducing the waste of gold mine resources and grading the gold mine.
1. Reduce the waste of gold resources:Flash flotation technology will sort the graded return sand, recover the gold ore as soon as possible, avoid the problem of over-crushing, and reduce the loss of gold particles in the mud. Flash flotation technology can also make the gold particles more concentrated and speed up the floating speed.
2. Grade the gold ore:Flash flotation machine can screen the gold ore of poor quality and low grade, so as to ensure the stability of the quality of the gold ore finally screened out and improve the quality of the concentrate.
In the actual application of flash flotation technology, there are many influencing factors, such as the properties of the original ore, the concentration of the flotation slurry, the size of the ore particles, the size of the bubbles, the type and dosage of the reagent, the slurry temperature, etc.
1. Ore properties: Flotation technology has a lot to do with ore properties. When the useful elements in the gold mine become smaller, the flotation process will become relatively simple and the flotation process will be smooth. If the original ore elements are too large, the flotation process will not be easy to control.
2. Slurry concentration: Slurry concentration is closely related to gold ore quality, and changes in slurry concentration determine the number of bubbles. When the gold ore particles are fine, the slurry concentration requirement is low, and when the gold ore particles are coarse, the slurry concentration requirement is high. Slurry concentration also determines the amount of reagents used. The higher the slurry concentration, the greater the amount of reagents used.
3. Ore particle size: Ore particle size is also called ore fineness. The purpose of flotation technology is to separate gold ore from minerals, so mineral fineness has a great impact on flotation technology.
4. Ore dressing reagents: Ore dressing reagents can generally be divided into collectors and frothers. The more reagents are used, the better the flotation effect, but it is not absolute. Too much reagents can also cause some harm.
Flash flotation is the joint work of flotation machine, grinding equipment and classification equipment. Flash flotation machine can identify minerals in graded return sand, recycle useful minerals, reduce unnecessary grinding process, avoid wear and surface pollution of gold mines, and improve the utilization rate of gold mines. The concentration of flash flotation process is very high. It is a high-concentration flotation process, so it is more suitable for gold mines. Gold mines are high-density ores and are easier to float.
The above is a brief introduction to the application of flash flotation process in the gold mine dressing process. Mineral resources are very valuable, especially gold mines. Therefore, when selecting a process, gold mines need to conduct a comprehensive study of the ore, analyze the ore properties, select a reasonable beneficiation process, improve beneficiation efficiency, and reduce resource waste and environmental pollution.
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