Lead zinc ore is one of the important metal minerals. In the beneficiation of lead zinc ore, the recovery rate of lead zinc ore is an important indicator to measure the quality of lead zinc concentrate. There are many factors that affect the recovery rate of lead-zinc ore. In this article, we will introduce three aspects to improve the recovery rate of lead-zinc ore beneficiation.
Optimizing the flotation process is one of the important means to improve the recovery rate of lead-zinc ore beneficiation. The main methods include adjusting the flotation time of lead-zinc ore, adjusting the dosage of flotation reagents for lead-zinc ore, optimizing the grinding process of lead-zinc ore, adopting mixed flotation technology, and optimizing the structure of lead-zinc ore flotation process.
1. Adjusting the flotation time
Extending the flotation time can increase the contact time between lead zinc minerals and reagents, and improve the recovery rate. However, excessive flotation time may lead to excessive flotation of non target minerals, so it is necessary to control the flotation time reasonably.
2. Adjusting the dosage of flotation reagents
Reasonably increasing the dosage of flotation reagents can enhance the flotation effect of lead zinc minerals and improve the recovery rate. However, excessive flotation reagents may lead to excessive flotation of non target minerals and transition inhibition of target minerals, so it is necessary to control the dosage of reagents.
3. Optimize the grinding process
Grinding is an important part of lead zinc ore beneficiation, and excessive grinding can lead to the production of slime and affect the flotation effect. Therefore, it is necessary to reasonably control the grinding time and concentration in order to achieve the best flotation effect
4. Adopting micro bubble flotation technology
Micro bubble flotation technology is a flotation technology for fine-grained lead-zinc ores. By using foam as a carrier, the residence time of fine-grained minerals in the flotation system is increased and the recovery rate is improved.
5. Optimize process structure
A reasonable process structure can reduce mineral loss and waste, and improve recovery rates. For example, a graded flotation process can be used to separate fine-grained minerals from coarse-grained minerals for flotation, or a combined jigging flotation process can be used to combine jigging and flotation processes to improve the recovery rate of lead-zinc ore.
Improving fine-grained recovery is one of the important means to improve the recovery rate of lead-zinc ore beneficiation, including strengthening the washing of lead-zinc ore, increasing fine-grained flotation of lead-zinc ore, and using high-efficiency flotation equipment.
1. Increase fine-grained flotation
For fine-grained lead-zinc ores, special flotation techniques such as microbubble flotation can be used to separate fine-grained minerals from coarse-grained minerals for flotation, improving recovery rates.
2. Using efficient flotation equipment
The use of high-efficiency flotation equipment can improve flotation efficiency and recovery rate. For example, high-efficiency foam flotation machine, micro bubble flotation machine and other equipment can be used to enhance the flotation effect of fine-grained lead-zinc minerals.
Improving the recovery rate of lead-zinc ore beneficiation through tailings recycling is an effective method, mainly for the re processing of lead-zinc tailings. For the discharged lead-zinc ore tailings, re selection can be carried out to recover useful components. Tailings re selection can adopt various methods, such as gravity separation, flotation, magnetic separation, etc. It is necessary to choose appropriate methods based on the properties of lead-zinc ore tailings and the properties of target minerals.
The above are three aspects related to improving the recovery rate of lead-zinc ore beneficiation. Improving the recovery rate of lead-zinc ore beneficiation requires starting from multiple aspects. In addition to the recovery rate, there are other important parameter indicators for lead-zinc ore beneficiation. Here, the editor reminds you that the specific situation requires selecting appropriate beneficiation technology and parameters based on the specific ore properties and process conditions to improve beneficiation efficiency and economic benefits.
