Home > Encyclopedia

Magnetic separation in mineral processing plant

Magnetic separation of typically, hard, dense, magnetic minerals of iron from aggregates is seldom necessary to assure the mechanical competence of the aggregate. Hydrated iron oxide minerals e.g. hematite, geothite are only very weakly magnetic and may be separated, if of economic value or to prevent iron staining of concrete, by density separation. High-intensity magnetic separators employing alloy permanent magnets or superconducting magnets are now available to remove such weakly magnetic mineral particles from more valuable ores such as iron ores, china clays, glass sands and bauxite but have not been applied to aggregates. Pyrite, which occurs in some deposits of sand and gravel, is so weakly magnetic that very little success has been achieved in removing it, even from coal where the  incentive is so great, by magnetic separation.

Low intensity magnetic separators containing permanent ceramic (ferrite) magnets or electromagnets are commonly used to remove tramp iron and steel from quarried rocks in order to protect process equipment. It should be noted that many modern steel alloys, including stainless steels and manganese steels, are 'non-magnetic'. Therefore, many plants employ detector loops surrounding conveyor belts to initiate alarms or automatically stop the belt in the event that such material is detected in the feed to the process plant.

>>Previous: Shape sorting of aggregate

>>Next: Separation Processes in Mineral processing plants

Get Support & Quotation

Please fill in the form below(* are required), and we will get in touch with you as soon as possible.

Batching Plant Concrete Mixer Crusher Other

Solution

  • Production of lightweight aggregates,lightweight aggregate production lineProduction of lightweight aggregates

    Lightweight aggregate is used to produce lightweight concrete products such as concrete blocks, structural concrete, and pavement. It can be classified into 3 types--Structural lightweight aggregate, Masonry-lightweight aggregate and Insulating aggregate....

  • Granite Crushing,Granite Crushing LineGranite Crushing Line

    The Granite Crushing Line designed by Camelway has the advantages of high automation degree, high crushing capacity, low operation cost, low energy consumption and qualified environmental protection performance, and the end products it produced has a good...

  • Mobile Crushing Plant for Construction Waste ProcessingMobile Crushing Plant for Building Waste Processing

    Due to the construction wastes usually were piled up concentratedly in relatively limited space with poor traffic condition, Camelway Machinery recommends wheel mobile crushing equipment to crush and screen the construction waste....

  • Aggregate Production,Basalt Crushing and Sand Making LineBasalt Crushing and Sand Making Production Line

    The production line of basalt materials processing can mainly be divided into 3 stages: primary crushing, secondary crushing, sand making & shaping, respectively. Because the real size of the raw basalt material and the desirable size of end product o...

  • Building Aggregates Manufacturing SolutionBuilding Aggregates Manufacturing Solution

    Camelway Machinery specilizes in providing professional building aggregates solution and can offer various crusher and sand maker to meet your practical demand for differen kinds of aggregate....

Contact Us

Tel: 008637165861518

Fax: 008637165861528

E-mail:info@camelway.com

Mobile: 008618838109566

WhatsApp: 008618838109566

Skype: Camelway1983