At the Almalyk mining and metallurgical complex, the works continue on the investment project “Development of the Yoshlik I deposit”, within the framework of which the construction of copper concentration plant No. 3 (CCP-3) is underway.
Including in the grinding and gravity concentration section in the grinding and flotation shop.
The grinding and flotation shop is one of the main workshops of copper concentration plant No. 3. The beneficiation of minerals in the workshop is carried out using both gravity and flotation methods. The use of combined enrichment methods (gravity-flotation) and hydrometallurgy makes it possible to ensure rational processing of polymetallic ores and achieve high rates of metal extraction into concentrates.
As Tokhir Ergashev, the head of the grinding and gravity concentration section, said, this section is important in the process chain of the factory. Here, ore with a diameter of 6 mm, coming from the crushing shop, is crushed in MShS 7.3-13.00 m mills. Then, using Warman-250 pumps, 1/4 of the ore is passed through protective screens and sent to concentrators. The main function of concentrators is to capture a certain proportion (quantity) of gold. This technology prevents all the gold contained in the ore from entering the flotation process. And during the flotation process, not the entire volume of gold is captured, but a certain part of the gold goes to waste. This technology is being used for the first time at the plant in the production process. Another important aspect is that concentrators reduce unnecessary costs. The process continues and 3/4 of the ore is sent to hydrocyclones using a WARMAN-250 pump. In hydrocyclones, the ore is divided into classes. 80% class (71 microns) with a density of 28-30% is sent for flotation. The ore that passes through the hydrocyclone sand packs is returned to the mill itself.
Currently, construction works are intensively underway in the shop. Including in the grinding and gravity concentration area, the installation of metal structures was completed by 32%, in the flotation area, the concreting works were completed by 79%, reinforcement works were completed by 81%, and installation of metal structures was completed by 36%.
The works on installation and setup of equipment continue. Including mills, floatation machines, compressors and more.
It is important to note that all electric motors used in this workshop are equipped with frequency converters, which allows for efficient use of energy resources, and also achieves significant energy efficiency results.
In addition, an administrative building and a canteen are being erected on the territory of the workshop. Construction work in these buildings is 60% completed.
At the same time, a workforce is gradually being formed in the workshop. Engineering and technical personnel and operating personnel hired today are undergoing training with experienced specialists from the plant’s copper concentration factories. And a certain part is involved in construction and installation work directly at CCP-3.