guide iron processing technology

Because of the strong magnetism of magnetite, the extraction of iron from magnetite is weak magnetic separation technology. The magnetite iron ore processing maninly includes:

• It is suitable for the extraction of iron from simple single magnetite. It can be divided into successive-grinding weak magnetic separation process and stage-grinding weak magnetic separation process. Successive-grinding weak magnetic separation process is suitable for extraction of iron from magnetite with coarse grain or high grade iron. Stage-grinding weak magnetic separation process is suitable for extraction of iron from low grade magnetite with fine grain.

  Single Weak Magnetic Separation Process

• It mainly points at the extraction of iron ores which are difficult to increase its fineness or with many SiO2 impurities. It includes weak magnetic-cation anti-flotation separation process and magnetic-positive anion flotation separation process.

  Weak Magnetic - Flotation Separation Process

• It is mainly dealing with the extraction of iron ores with multiple metals and complex iron ore.

  Weak Magnetic - Strong Magnetic - Flotation Separation Process

Hematite is weak magnetic ore, which can be easier separation by flotation than magnetite. In the old days, hematite was separated by gravity separation, however it was weed out for unreachable capacity. Now Hematite iron ore processing is as follows:

• Weak Magnetic - Strong Magnetic Separation

  

  Commonly, weak magnetic separation can be added before strong magnetic separation to remove the strong magnetic ore or impurity in raw ore. Then strong magnetic separation is used to separating hematite, which is also the work flow of the mixture of magnetite and hematite.

• Flotation

  

  Hematite is easier to floated than magnetic, which could be separated by positive flotation. As the density of iron ore is much higher than that of gangue mineral, gangue mineral is more likely to attach to the foam than iron ore. Therefore, for the extraction of iron ore, reverse flotation is more advantageous than positive flotation. When the magnetite content mixed in hematite is higher, reverse flotation is a more convenient method for the extraction of iron ore.

• Strong Magnetic - Flotation Combined Separation

  

  In the process of high intensity magnetic-flotation, a part of gangue mineral in the ore is firstly removed by high intensity magnetic separation, and then the coarse concentration of high intensity magnetic separation is sent to the flotation to obtain the final qualified concentrate.

Anhui 600t/d Iron Magnetic Separation Project

Processing Flow:

Stage grinding(2 stages) + stage separation(6 stages magnetic separation) + iron concentrate dewatering + tailings magnetic and gravity separation + grinding + flotation separation of sulfur and titanium.

Equipment:

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  Grid Ball Mill

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  Permanent Magnetic Drum Magentic Separator

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  High-efficiency Vibrating Screen

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  Hydrocyclone Unit

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  XPA Slurry Pump

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  Spiral Helix Chute

Inner Mongolia 2500t/d Iron Ore Processing Plant

Processing Flow:

One stage grinding + two-block classification + close-circuit grinding + four-block magnetic separation + concentrate dewatering + tailings dewatering

Equipment:

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  Wet Cylinder Ball Mill

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  Permanent Magnetic Drum Magentic Separator

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  Hydrocyclone

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  Slurry Pump

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  Dewatering Screen

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  High-Efficiency Thickener

Yunnan 100t/d Iron Ore Processing Plant

Processing flow:

Strong magnetic separation: two-and-half-block close circuit crushing and screening + strong magnetic separation

Verse flotation: two-and-half-block close circuit crushing and screening + verse flotation

Weak magnetic separation: two-and-half-block close circuit crushing and screening + one stage pre-magnetic separation for tail tossing + one stage close circuit grinding + two-block weak magnetic separation

Equipment:

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  Circular Vibrating Screen

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  Overflow Ball Mill

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  High Gradient Magnetic Separator

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  XCF Flotation Cell

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  KYF Flotation Cell

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  Wet Magnetic Separator

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  Anhui 600t/d Iron Ore Processing Plant

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  Inner Mongolia 2500t/d Iron Ore Processing Plant

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  Yunnan 100t/d Iron Ore Processing Plant

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  Outstanding Mineral Processing Technology

  Xinhai Mining has set up a mine design institute and a mine research institute, with an experienced team of experts, and has applied for many patents (some invention patents are under examination and approval). The technical indexes of mineral processing are guaranteed.

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  Rich Mineral Processing Experience

  Till now, Xinhai Mining has accomplished over 2000 mine design, research and equipment supplying projects. Among them, there are over 500 mineral processing EPCM+O projects. Xinhai Mining has technologies and experiences for over 70 kinds of ores.

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  Complete Flow Of Plant Construction

  Pointed at different problem during mine construction, Xinhai Mining put forward mineral processing EPCM+O service, supplying close-circuit service from mineral processing test and mine design, equipment manufacturing and purchasing, reaching standard and production, to mine management and operation.