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Sponge Iron Rotary Kiln

Sponge iron rotary kiln is mainly used to extract sponge iron ore. Sponge iron is a good direct reduction iron ore, which has the characteristics of non pulverization, high activity, high compressive strength and low carbon content. It can replace scrap steel as the main raw material for electric furnace steelmaking, and is widely used in metallurgy, steel, building materials, machinery and other fields.
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  • mail: sales@rotarykilnchina.com

    Product Description


    Working principle


    Product Description

    Sponge iron ore is one of the primary iron ore deposits. It is a red natural multi mineral mixture with hydrous iron oxide as the primary component. Its iron content is not high, so it is a non essential iron ore. The hematite powder with particle size of less than 10mm and moisture content of less than 15% is mixed with pulverized coal of 0.8 to enter the rotary kiln. The drying, magnetization and desulfurization process of hematite are completed in the same reverse kiln, and the speed of reverse kiln is 0.8 rpm; The flame temperature and flame shape in the sponge iron rotary kiln should be adjusted frequently to meet the needs of practical production.


    1. Support equipment: the main shaft layout is selected, and active temperature measurement equipment and electric heating equipment are set, with movable supports for selection.

    2. Block wheel equipment: divided into mechanical wheel and hydraulic thrust block wheel. The hydraulic block wheel equipment is equipped with a hydraulic control system.

    3. Transmission equipment: equipped with single transmission or double transmission. DC motor or variable frequency adjustable speed motor controls the speed, which is reliable, energy-saving and efficient.

    4.High quality materials are used for production, and the operation parameters are reasonably designed. Therefore, while ensuring the better quality of the equipment, its operation is more stable, the failure rate is reduced, and the service life is extended by more than 5 times;

    5.Fully responding to the call of "green environmental protection", the equipment adopts advanced design idea to basically control dust and noise pollution within the specified range.

    Working principle

    (1) The raw material (dolomite) is crushed by crusher to qualified material (30-40mm).
    (2) It is sintered in a rotary kiln and calcined into calcined white.
    (3) It is cooled by a cooler.
    (4) Then it is ground into powder by ball mill.
    (5) Then it is pressed into a ball by a ball pressing machine.
    (6) After crushing, it is evenly mixed with ferrosilicon powder (containing 75% silicon) and fluorite powder (containing gaf2)=95% to form pellets.
    (7) Put it into a heat-resistant stainless steel reduction tank, put it in a reduction furnace, and reduce it at 1200-1250 ℃ and 1.33pa vacuum to produce crude oil.
    (8) After flux refining, ingot casting and surface treatment, the finished magnesium ingot is obtained.


    Product specifications
    Kiln dimensionsCapacity
    Rotation speed
    Motor power
    Total weight
    Φ2.8×442.8443.54000.437-2.1855201.58Outside disassemble kiln
    Φ3.2×503.250410000.6-3125278Outside disassemble kiln
    Φ3.5×543.5543.515000.55-3.4220363Kiln with preheater precalcine
    Φ4.0×56456423000.41-4.07315456Kiln with preheater precalcine
    Φ5.0×74574460000.35-4710944Kiln with preheater precalcine
    Φ6.0×95695410000Max5950×21659Kiln with preheater precalcine

    Why choose this Sponge Iron Rotary Kiln ?

    The sponge iron rotary kiln of our company is not only affordable, but also has many outstanding performances, such as reliable quality, long service life, good calcination effect, high efficiency, safety and stability, low cost and so on. It will certainly enable users to purchase reliable and good sponge iron rotary kiln equipment at less cost and make users as satisfied as possible. In short, if you choose the manufacturer of Hongke heavy industries sponge iron rotary kiln, you will choose a professional. Hongke heavy industries will not disappoint you!

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