Magnetite has strong magnetism, and mainly includes single magnetite, vanadium-titanium magnetite, mixed ore containing magnetite and iron oxide, and ore containing magnetite polymetallic symbiosis.Magnetite is divided into coarse-grained, medium-fine-grained, and micro-fine-grained according to its particle size. Among them, the iron ore with coarse and medium-fine grains can be crushed and ground to obtain qualified iron ore concentrate by weak magnetic separation process. Micro-particle embedded magnetite needs to be finely ground until the monomer is fully dissociated, and then through multiple selection processes to obtain better beneficiation indicators.
The JCTN magnetic separator for refinement and slag reduction developed by Huate Magnet is a wet magnetic separator designed for the rinsing and purification of magnetite. It is suitable for the separation and desliming of the overflow products of the first-stage grinding and grading; before the second-stage grinding And mineral concentration before filtration; desliming before the magnetite enters the fine sieve and desliming before reverse flotation; the final selection of magnetite, which is difficult to improve the grade of fine particles and fine particles in conventional magnetic separation Iron ore has obvious sorting effect.
Application of Magnetic Separator for Refining and Slag Reduction in Fine-grained Magnetite
A fine-grained magnetite in Benxi area belongs to sedimentary metamorphic lean magnetite. The main metal mineral of the ore is magnetite. According to the ore properties of the magnetite, our company has carried out an experimental magnetic separator for refinement and slag reduction. Experiments and batches of industrial machines have been put into use in industrial production. The actual application of the refined slag reduction magnetic separator has been praised and recognized by customers. For this reason, the refined slag reduction magnetic separator has been able to be used in Benxi area. Widely promoted and applied. The industrial data on site shows:
1. Using a magnetic separator for refinement and slag reduction as a first stage of magnetic separation, while ensuring that the tailings grade is not higher than 1%, the size of the original ore is increased from -200 mesh 80%, and the grade is about 28% to the concentrate grade of 52%. By about 14%, the refined slag-reducing magnetic separator not only improves the grade of the concentrate, but also throws out most of the tailings, which reduces the amount of secondary grinding and saves energy consumption;
2. The magnetic separator for refinement and slag reduction is used for the beneficiation operation, and the ore particle size is -600 mesh 85%. When the beneficiation index is equivalent, it can be realized that a single-stage refinement and slag-reduction magnetic separator can replace multi-stage series-connected ordinary magnetic separators. The machine is selected to shorten the process flow and achieve the purpose of reducing costs and increasing efficiency.
Main technical characteristics of magnetic separator for refinement and slag reduction
■ Adopt the combination of tube feeding device and overflow weir to achieve the purpose of even feeding;
■ Adopt a new type of structure that the downstream trough and the drum rotate counter-rotating, which can increase the recovery rate of minerals;
■ The new downstream tank is equipped with multi-stage rinsing and top water curtain structure, which can fully rinse the minerals on the surface of the drum;
■ Adopting 240°-270° large wrap angle multi-pole magnetic system, combined with the magnetic stirring device in the cylinder, realizes multiple tumbling and magnetic stirring of minerals, and under the action of rinsing water, the impurities in the concentrate are fully removed to improve Concentrate grade.
■ The unloading device adopts a double scraper structure to realize the concentration of minerals while unloading.
Application data of magnetic separator for refinement and slag reduction in industry
1. The magnetic separator for refinement and slag reduction is used for one stage of magnetic separation
Grind the ore sample to 80% of -200 mesh, and use a magnetic separator for refinement and slag reduction to perform magnetic separation in the first stage.
The refining and slag reduction magnetic separator not only improves the grade of the concentrate, but also throws out most of the tailings, which reduces the amount of secondary grinding and saves energy consumption. The magnetic separator for refinement and slag reduction not only ensures the smoothness of the process flow, but also saves costs.
2. Magnetic separator for refinement and slag reduction is used for selection
Due to the novelty of the principle and structure of the magnetic separator for refinement and slag reduction, it can minimize magnetic wrapping and improve the grade of concentrate, especially for fine-grained magnetite.
The use of a magnetic separator for refinement and slag reduction has a good effect on the separation of a fine-grained magnetite in Benxi, Liaoning. The magnetic separation position in the first stage has been increased from about 28% of the original ore grade to about 52%, which is an increase of 14%. The fine slag reduction magnetic separator not only improves the grade of the concentrate, but also throws out most of the tailings, reduces the amount of ore grinding in the second stage, and saves energy consumption; as a selection, it can realize a common magnetic separation operation that replaces two stages in series. , Thereby shortening the process flow and achieving the purpose of reducing costs and increasing efficiency.
Applications
Huate Magneto’s technological innovation is the driving force for development, focusing on the R&D and production of high-end beneficiation equipment, superconducting magnet technology and energy-saving and environmentally-friendly high-tech magnetoelectric products. The scope of services covers mining, coal, electric power, metallurgy, non-ferrous metals, environmental protection, and medical treatment. In more than 10 fields, we have provided optimized solutions for more than 20,000 customers around the world. Adhering to the service concept of “Customers are always the first”, the company continues to promote the reform of the service system, strives to create more convenient, personalized and customized services for customers, leads and promotes the transformation and upgrading of industry services, and becomes a globally competitive Of magnetic application system service providers keep moving forward!
The company has a national key mineral processing laboratory covering an area of 6000 square meters, 120 full-time or part-time experimental researchers, complete laboratory processing equipment, complete testing and analysis instruments, good product experimental conditions, and various experiments There are more than 200 sets of equipment and instruments, 60% of which have reached the domestic leading level and 20% of them have reached the international advanced level. With the development of magnetic separation equipment manufacturing as the starting point, the focus is on the development of superconducting magnets and superconducting magnetic separation in the field of magnetic equipment technology. Research on large-scale magnetic application technology equipment such as machine, high-gradient magnetic separator, stirrer, etc.
Our company can provide customers and research institutes with complete beneficiation process solutions and beneficiation experimental equipment from crushing, screening, dry separation, grinding, wet weak magnetic separation, wet strong magnetic separation, etc., to provide the feasibility of the construction of the beneficiation plant Guiding advice.
Technical Service Scope of Huate Beneficiation Engineering Design Institute
①Analysis of common elements and detection of metallic materials.
②The impurity removal and purification of non-metallic minerals such as English, slabs, slides, fluorescents, high mountains, aluminum ore, leaf wax, heavy crystals, etc.
③The beneficiation of iron, titanium, manganese, chromium, vanadium and other ⿊chromatic ores.
④The beneficiation of weakly magnetic minerals such as tungsten ore, tantalum niobium ore, durian, electric, and cloud.
⑤ Comprehensive utilization of secondary resources such as various tailings and smelting slag.
⑥The combined ore beneficiation of colored minerals, magnetic, heavy, and flotation.
⑦ Intelligent sensor sorting of non-metallic and non-metallic minerals.
⑧ Semi-industrial re-election test.
⑨ Superfine powder addition such as material crushing, ball milling and grading.
⑩EPC turnkey processes such as crushing, pre-selection, ore grinding, magnetic (heavy, flotation) separation, arranging, etc. for ore selection.
Post time: Oct-26-2021