Aiming at the characteristics of magnetic strength, Xinhai introduced different magnetic separation methods to process minerals with different magnetic strength.
Weak magnetic field magnetic separation process is mainly used to recover strong magnetic minerals. Strong magnetic field magnetic separation process is used to
Aiming at the characteristics of magnetic strength, Xinhai introduced different magnetic separation methods to process minerals with different magnetic strength.
Weak magnetic field magnetic separation process is mainly used to recover strong magnetic minerals. Strong magnetic field magnetic separation process is used to recover weak magnetic minerals.
After the pulp enters magnetic separator, magnetic force received by magnetic particle is more than mechanical force from the opposite direction, magnetic particle is attached to the cylinder and then brought to discharge outlet.
Magnetite, titanomagnetite and pyrrhotite;
After the pulp enters hematite magnetic separator, magnetic force received by magnetic particle is less than mechanical force from the opposite direction, so hematite magnetic particle remains in magnetic separator.
Hematite, specularite, siderite, limonite, manganese ore and wolframite
Nonmagnetic ore mainly adopts anti-magnetic separation, nonmagnetic ore receives small magnetic field, and remains in pulp then discharges.
Wolframite, quartz, feldspar, galena, gold and fluorite.
Ore Property: After the mineral processing experiments, Xinhai Mine Research Institute concluded that the main metallic mineral were titanomagnetite, ilmenite and a small amount of hematite, limonite and secondary magnetite. The gangue mineral was plagioclase.
Project Problem: Xinhai laboratory found that the content and grade of titanium magnetite change significantly with ore grade, and was gradually reduced, the grade was thinner, mostly were 0.5~1.5mm. limonite were granular, crystalline and irregular form.
Xinhai Solution: After mineral processing experiment, Xinhai decided to use three opening crushing, one roughing, one concentration, and one scavenging magnetic separation process. After the crushing and grinding, the grinding minerals returned to the classifier, which formed a closed cycle, the coarse grain was returned to the closed cycle, the fine grain returned to the original work. Then Xinhai adopted magnetic separator for one roughing, one concentration, and one scavenging, and finally obtained qualified iron concentrate.
Process Indicator: Ore grade: 31.3%; Concentrate grade: 63%; Recovery rate: 84.85%
Ore Property: The samples were collected by customer and sent to Xinhai. After the sample test, Xinhai found valuable mineral were mainly iron minerals, including hematite, martite and magnetite, as well as a small amount of limonite, specularite. Gangue mineral was mainly