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Click to add WeChatManganese is one of the important mineral resources required for steel materials. With the gradual reduction of manganese carbonate minerals, manganese oxide ore has gradually come into people's view and become the object of mining. Manganese oxide is mostly a poor ore, and its beneficiation is difficult. Currently, the common manganese oxide ore beneficiation methods include a single method and a combined beneficiation method. Let’s find out together below!
The common manganese oxide single beneficiation methods mainly include washing, gravity separation, magnetic separation and flotation . A single beneficiation method is relatively simple, and usually cannot obtain better separation indicators for difficult-to-separate complex manganese oxide ores.
Ore washing is the most traditional mineral processing process in metallurgical production. In ore washing production operations, it is often carried out together with ore screening. In actual production, the main methods include the following two methods:
1. Vibrate the raw ore in a vibrating screen, and then directly use flushing water to clean the raw ore;
2. Put the washed ore into The mine uses vibrating screens for screening processing. In actual production, ore washing is a necessary processing method for every manganese oxide concentrator. Rich ore can be directly used in metallurgical production after washing.
In technical research, the production company discovered that the secondary or tertiary washing mode can replace the primary washing and increase the metal recovery rate in the washing process, thus improving the economic benefits of the company.
Generally, in manganese ore gravity separation operations, jigs are commonly used for coarse and medium particle separation, and shakers are used for fine particle separation. In actual production, the gravity separation process has low investment and low cost, but it is difficult to separate refractory and fine-grained manganese ore and cannot effectively recover manganese concentrate.
In addition, the gravity separation method for manganese separation has the problem of inflexible process. In recent years, some professionals have studied and gradually changed the gravity separation to magnetic separation. replace.
The magnetic separation process mainly uses magnetic equipment to select manganese mineral materials, which is a relatively traditional process measure in mineral processing production. In actual production, magnetic separation of manganese oxide is simple to operate, has low production consumption, easy to control the equipment, and has strong production practicability, but the investment cost of its infrastructure is relatively high.
Flotation separation of manganese oxide is relatively common, but the flotability of manganese oxide is poor, and the flotation method may not be able to effectively obtain the ideal Manganese minerals, at the same time, the process cost of manganese ore flotation is high and operation control is difficult. If you want to obtain ideal manganese concentrate, you need to combine it with other processes to achieve separation. In addition, flotation chemicals and flotation equipment are also particularly important during flotation.
Since it is difficult to obtain an ideal manganese concentrate using a single beneficiation method, related technologies Researchers have studied a variety of joint beneficiation process solutions. Currently, the commonly used joint beneficiation solutions are all combined with magnetic separation, including gravity-magnetic separation combined beneficiation process and magnetic-flotation combined beneficiation process.
This combined method is mostly suitable for beneficiation of low-grade manganese oxide powder ore. It can be magnetically processed by using a strong magnetic separator for manganese oxide minerals. After separation, a diaphragm jig is used to jig and gravity-separate the manganese minerals after magnetic separation to obtain manganese concentrate and tailings.
This combined manganese beneficiation method is mostly suitable for processing manganese oxide ores , its process flow mainly includes three stages, namely: Magnetic reduction roasting treatment, Weak magnetic separation treatment, Iron dressing tailings reverse flotation treatment strong>.
The advantage of this mineral processing method is its strong adaptability. During strong magnetic separation, it can not only effectively remove slime, but also improve the grade of selected flotation. During flotation, sodium oil sulfonate is used as the collector. The agent can enable the slurry to be sorted at neutral and normal temperatures, saving chemical and energy consumption.
The above is an introduction to the methods of single beneficiation and combined beneficiation of manganese oxide. In the actual beneficiation plant, how to beneficiate manganese beneficiation process needs to be based on The properties of manganese ore and the requirements of the mineral processing plant depend on the overall investment standards of the mineral processing plant. Therefore, it is recommended to conduct a ore processing test analysis first, and then design a suitable manganese ore through analysis Ore beneficiation process plan and suitable manganese ore beneficiation equipment.
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