Panzhihua Iron And Steel Achieves Efficient Recovery Of Ultra Ine Grained Ilmenite

The full tailings deep recycling project of Panzhihua Iron and Steel Mining Company's Mineral Processing Branch was completed and put into operation in 2013. It uses the tailings from the titanium dressing process as raw materials and mainly recovers the iron and titanium resources. After the transformation of the deep recycling project, the annual raw ore processing Capacity reaches 7.6 million tons. As vanadium-titanium magnetite resources enter deep mining, it is difficult to blend the raw ore, the grade has been reduced, and the production cost has gradually increased. Fine grinding is required to obtain iron and titanium concentrates with qualified grades, and the resulting ultra-fine particles The quantity of grade ilmenite is also gradually increasing.

In actual production, these ultra-fine-grained ilmenite cannot be effectively recovered in the existing two-stage "strong magnetic + flotation" process. They can only be centrally stacked as ordinary sludge, resulting in a waste of titanium resources. and occupy land resources. The company's unrecovered ore volume through inclined plate overflow is about 570,000 tons every year. If this part of the tailings containing titanium resources is recycled, at least tens of thousands of tons of ultra-fine titanium concentrate can be added every year, and the economic benefits are very great. considerable.

In March 2022, the construction project of a new 79,900-ton ultra-fine-grained ilmenite efficient recovery demonstration line was registered with the Economic and Information Technology Bureau of East District, Panzhihua City, Sichuan Province. The construction includes hierarchical enrichment, flotation, filtration and slurry transportation systems. , as well as collector preparation system, automatic dosing system, and supporting civil engineering, water supply and drainage, power supply and distribution, automatic control system, etc. During the project construction process, faced with unfavorable factors such as a small site, tight time, heavy tasks, and the COVID-19 epidemic, Panzhihua Mining Company rose to the challenge and carried forward the Panzhihua spirit of "hard work and brave climb to the top". It will be completed on schedule by the end of 2022.

In order to ensure that the project reaches production and results as scheduled, Panzhihua Iron and Steel Mining Company has gone all out to ensure the stable operation of project production, strengthen the protection of production factors, precise dispatch and control, and strengthen the implementation of targeted measures. Effective" provides favorable conditions.

"During the project construction process, the biggest difficulty we encountered was the installation and operation of the flotation column." said Wang Xianming, production manager of the Tailings Branch. The flotation column is the key separation equipment in the ore separation process. As the first company in the Panxi area to apply flotation columns in the ilmenite separation process, Panzhihua Iron and Steel Mining Company Xingmao Company operates around the flotation column. Continuous research has been carried out on issues related to flotation columns such as the custom repair model for testing instruments and the regular repair model for cleaning sulfur flotation columns, and the research results are regularly inspected and accepted.
The technical research on flotation columns is an epitome of many equipment research efforts. In order to complete the stable production of the demonstration line project as soon as possible, Panzhihua Iron and Steel Mining Company established a technical research team to achieve production and efficiency, held regular research meetings, and continued to operate the classification system, filtration system, and flotation system based on the stable operation of the existing system and internal tapping of potential. Parameter exploration, optimization and adjustment; compilation and improvement of three major regulations and four major standards for main equipment, strengthening equipment management to ensure stable operation of equipment; relying on the flotation master workstation, continuous training, exploration of better operating methods, and improvement of employee operations level; carry out in-depth work to eliminate shortages of various types of equipment, strictly follow the optimal production line standards, and promote standardized operating procedures; do a good job in controlling the cost of ultra-fine-grained titanium concentrate, and strive to reduce the unit consumption of flotation reagents to ensure ultra-fine-grained titanium Concentrate production costs are effectively controllable.