Gvožđe je drugi najčešći element na Zemlji, koji se sastoji od skoro 5% Zemljine kore. Rude gvožđa su stene i minerali koji sadrže gvožđe, rafinirano kroz rudarenje i preradu. Skoro 100% ruda miniranog gvožđa se koristi u proizvodnji čelika, čineći ga neophodnim za sve, od spajalica do zgrada.
The dry separation industry is fast-growing, developing environmentally friendly methods to contend with the growing risks of iron ore tailings management. Recent high-profile failures of tailing dams and impoundments have generated a strong interest in the industry to find alternative uses for tailings and eliminate high-risk wet tailing storage ponds.
ST opreme & Tehnologija (STET JE) is a leader in the water-free minerals separation equipment field. Our groundbreaking electrostatic separation equipment utilizes a dehydrated method of fine iron separation based on electrical conductivity.
Beneficiation is the term for reducing the size of valuable iron ore particles and separating them from the gangue (neupotrebilni minerali), which are then discarded as tailings. Postoji nekoliko različitih metoda vlažnog i suvog razdvajanja. The type of beneficiation employed depends on the physical and mineralogical properties specific to each iron ore deposit.
Iron ore processing involves a series of steps to extract and refine iron from its ore deposits. The first stage is mining, where large-scale open-pit or underground operations extract iron ore from the Earth. Once extracted, the ore undergoes crushing and screening to break it into smaller pieces and classify it based on size. Following this, the ore is subjected to various dobroćudnost rude gvožđa processes such as gravity separation, magnetno razdvajanje, and flotation to remove impurities and increase iron content. Magnetic separation is particularly effective in separating iron ore from gangue minerals due to the magnetic properties of iron. Međutim, magnetic separation loses its effectiveness on finer particles, often lost as tailings.
Iron ore tailings, which are the byproducts generated during iron ore processing, can pose several environmental and safety challenges. Some of the key problems associated with iron ore tailings include:
Electrostatic separation is an industrial process using electrostatic charges to separate large quantities of material particles differentially. Najčešće se koristi za sortiranje mineralne rude, pomažući u uklanjanju stranog materijala i ostavljanja za sobom prečišćenu supstancu. Because STET’s electrostatic separation equipment is uniquely suited to processing fine iron ore minerals, it can drastically reduce the amount of tailings generated during a traditional iron ore processing operation.
Elektrostatičko razdvajanje is a completely dry processing operation with zero water consumption, što znači da se ne utroši energija za ispumpavanje, zadebljanje, and drying and no costs from water treatment and disposal. Other benefits of electrostatic separation include lower investment and operating costs and ease of permitting due to its minimized environmental impact. This process requires no chemical additives, further enhancing its environmental benefits.
ST opreme & Tehnologija (STET JE) develops and manufactures Tribo electrostatic separators for the fly ash and minerals industry using a proprietary electrostatic separation process developed by an MIT scientist. We’re proud of our unique iron ore beneficiation process, which benefits the mining industry and the environment.
Our specialized separation equipment for fine minerals has developed an impeccable reputation in North America, Europe, and Asia thanks to a dedicated team of experts solving separation challenges for our customers.