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Bauxite Rotary Kiln

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Bauxite Rotary Kiln

Model: Φ2.2x38m--Φ4.3x64(m)

Capacity: 100tpd-600tpd

Material: Bauxite

Materials:(different sizes for 120 kinds of stones)

  • benonite

    benonite

  • cement

    cement

  • clay

    clay

  • coals

    coals

Applied material:

Bauxite is an earthy mineral, mainly composed of alumina, which is usually white or off-white in appearance, brittle and not easily decomposed.

Bauxite rotary kiln is an important equipment commonly used in the bauxite smelting process. The rotary kiln sinter the bauxite raw materials at high temperature to make chemical changes to produce the required aluminum products.

The bauxite rotary kiln is mainly composed of rotary part, supporting part, transmission device, kiln head cover, kiln head and kiln tail seal, combustion device and so on. The kiln head shield and kiln tail return spoon are cast in pieces for easy installation and have high heat resistance and corrosion and wear resistance. The cooling air is passed through the kiln head cold air jacket, which can evenly cool the kiln head cylinder and kiln head shield and make it more safe and reliable. The kiln head hood adopts large volume way and opposite opening kiln door structure, which makes the airflow more smooth. The kiln head and kiln tail seal adopts the double sealing form of radial friction labyrinth and fish scale piece, which is simple in structure and convenient in maintenance. The combustion device adopts the rotary four-channel pulverized coal burner with oil injection and ignition device.

During the working process of bauxite rotary kiln, raw material powder is fed into the kiln barrel from the feeding pipe at the high end of the barrel at the end of the kiln, and due to the inclination and slow rotation of the kiln barrel, the material produces a compound movement of tumbling along the circumference and moving from the high temperature to the low end along the axial direction. The fuel is sprayed in from the kiln head and burned in the kiln, the heat issued heats the raw material and makes it calcined into clinker. The hot air formed in the process of exchanging with the material enters the kiln system at the kiln feed end and is finally discharged into the atmosphere by the chimney.

Advantages of bauxite rotary kiln

1、Simple structure, strong running stability, less fuel consumed during operation, good energy-saving effect.

2、PLC centralized control in the main control room, high degree of automation, low labor cost.

3、Automatic oil temperature detection system, over-temperature alarm system, improve the safety performance of the equipment.

4、The calcination will not be polluted, the impact on the surrounding environment is less, and the economic and social benefits are doubly improved.

Technical Parameter

Model Capacity (t/h) Speed (rpm) Slope (%) Support No. Gearbox  Motor model Power (kw) Remark
Ø1.6×32m 2 0.58-2.85 4 3 set ZQ75-50 YCTZ50-4A 18.5  
Ø1.6/1.9×36m 2.5~3 0.53-1.59 4 3 set ZQ110-7 YCTZ50-4B 22  
Ø1.9×39m 3~3.5 0.53-1.59 4 3 set ZQ125-7 YCT315-4A 37  
Ø2.2×38m 5~6 0.214-1.64 3.5 3 set  Main ZS125-5-II Main YCT315-4A 37
Auxiliary ZQ40-40 Auxiliary Y112M-4 4
Ø2.2×45m 4~5 0.214-1.64 3.5 3 set  Main ZS125-5 Main YCT315-4B 45  
Auxiliary ZQ40-40 Auxiliary Y112M-4 4
Ø2.5×40m 6~7 0.62-1.5 3.5 3 set  Main ZS165-5 Main YCT355-4A 55
Auxiliary ZS50-1 Auxiliary Y160M-6 7.5
Ø2.5×50m 5~6 0.62-1.5 3.5 3 set  Main ZS165-5 Main YCT355-4A 55  
Auxiliary ZS50-1 Auxiliary Y160M-6 7.5
Ø2.8×43m 7~8 0.62-1.5 3.5 3 set  Main ZS165-6 Main YCT355-4B 75
Auxiliary ZS50-1 Auxiliary Y160L-6 11
Ø2.8×55m 6~7 0.62-1.5 3.5 3 set  Main ZS165-6 Main YCT355-4B 75  
Auxiliary ZS50-1 Auxiliary Y160L-6 11
Ø3×50m 9~10 0.5-1.5 3.5 4 set  Main ZS165-3 Main ZSN-280-11B 125
Auxiliary ZS50-1 Auxiliary Y160L-6 11
Ø3×60m 7~8 0.5-1.5 3.5 4 set  Main ZS165-3 Main ZSN-280-11B 125  
Auxiliary ZS50-1 Auxiliary Y160L-6 11
Ø3.2×53m 10~12 0.4-1.5 3.5 3 set  Main ZL130-16 Main ZSN4-280-11B 125
Auxiliary ZL50-10 Auxiliary Y180L-4 22
Ø3.2×64m 8~10 0.4-1.5 3.5 3 set  Main NZS995-28VBR Main ZSN4-280-21B 160  
Auxiliary ZL50-9-2 Auxiliary Y180L-6 15
Ø3.5×70m 12~14 0.4-1.5 3.5 3 set  Main ZSY500-40 Main ZSN-315-072 250  
Auxiliary ZSY180-31.5 Auxiliary Y180L-4 22
Ø3.6×55m 14~16 0.4-1.5 3.5 3 set  Main ZSY500-40 Main ZSYN-315-072 250
Auxiliary ZL65-16 Auxiliary Y180L-4 22
Ø3.8×58m 18~20 0.4-1.5 3.5 3 set  Main ZSY500-40 Main ZSN315-072 250
Auxiliary ZL50-14 Auxiliary Y180L-4 22
Ø4.0×60m 104 0.4-1.5 3.5 3 set  Main ZSY630-35.5 Main ZSN4-355-092 315

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