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  • Centrifugal Fan
    8-09 centrifugal fan

    Name:8-09 centrifugal fan

    Details
        use:

        The 8-09 type special high-pressure centrifugal fan for the iron furnace is suitable for the blast performance requirements of the iron furnace with a melting rate of 1, 2, 3, 5, and 7L/h. The fan can also be used as a blast for various melting furnaces and forging furnaces, and is also suitable for conveying air and gases that are non-corrosive, unnatural, and do not contain viscous substances. The temperature of the conveying medium should not exceed 80℃, and the dust and hard fine particles contained in the medium should not exceed 150mg/m3.

        Type:

        Fan 8-09 is single suction, and the machine numbers are No. 6.8A, 7.1A, 8D, 8.5D, 9D, a total of 5 machine numbers; Fan 9-12 is single suction, and the machine numbers are No. 6.8A, 7.1A, 7.7A There are 5 machine numbers in total, 8D and 9D.

        Fans of 8-09 and 9-12 can be made into clockwise rotation or counterclockwise rotation. Looking at it from one end of the motor, if the impeller rotates in a clockwise direction, it is called a clockwise rotating fan, which is represented by "clockwise"; if it rotates in a counterclockwise direction, it is called a counterclockwise rotating fan, which is represented by "counterclockwise".
        The outlet position of the fan is expressed by the outlet angle of the casing, and the "shun" and "reverse" fans can be made into three angles of 0°, 90°, and 180°.

        structure:

        Fans 8-09 and 9-12 are composed of impellers, casings, air inlets, transmission units, seals, and bases. For the 8-09 models, the partial assembly structure is adopted, and the other models adopt the overall structure.
        1) Impeller The blade shape is designed according to the new high-efficiency forward fan theory. After the impeller is formed, the static and dynamic balance are corrected, so the operation is stable and reliable.
        2) The casing is welded with ordinary steel plate to form the whole volute casing. The air inlet is made into a convergent streamlined overall structure and fixed with bolts to the front cover plate group.
        3) The air inlet is made into a convergent streamlined overall structure and fixed with bolts to the front cover plate group.
        4) Transmission group is composed of main shaft, bearing box, coupling and so on. The main shaft is made of high-quality steel. For 8-09 type No. 7.1D and No. 8D, use rolling bearing grease lubrication, and for 8-09 type No. 8.5, 9 use rolling bearing lubrication.

        Selection and application of fan performance
        (1) The parameters listed in the performance table of 8-09 and 9-12 fans are calculated by air medium in the state of t=20℃, A atmospheric pressure, pa=101.3×103, gas density ρ=1.2kg/m3 .
        (2) Precautions for purchase Before users purchase a fan, it is best to measure the actual working conditions of the furnace (mainly pressure parameters). Then select according to the melting rate, required air volume and air pressure of the chemical iron furnace, so that the purchased fan meets the actual needs, so as to avoid mismatch.
        Type 9-12 Air volume range: 1700~11411m3/h
                Wind pressure range: 11590~21931Pa
        Type 8-09
                Air volume range: 675~6049m3/min
                Wind pressure range: 10523~20736Pa 




    Performance table

    model

    Machine number

    transmission the way

    Rotating speed 
    (r/min)

    Serial number

    Full pressure

    flow

    Required power

    Electric motor

    Electric motor  
    (BJ108-60)

    Attachment

    (Pa)

    (r/min)

    (KW)

    model

    power

    bolt

    GB799-88

    nut

    GB6170-86

    washer

    GB96-85

    9-12

    6.8

    A

    2930

    1

    11590

    1700

    9.32

    Y160S2-2

    15

     

    M16×400
    (4a)

    M16 
    (4a)

    16 
    (4a)

    2

    11820

    2160

    11.59

    3

    12000

    2620

    13.57

    4

    12140

    3080

    15.93

    Y160L-2

    18.5

    5

    12120

    3540

    18.27

    6

    11980

    4000

    20.55

    Y180M-2

    22

    7

    11740

    4460

    22.60

    9-12

    7.1

    A

    2900

    1

    12347

    2074

    12.10

    Y160M2-2

    15

     

    M16×400
    (4a)

    M16 
    (4a)

    16 
    (4a)

    2

    12661

    2658

    15.02

    3

    12807

    3000

    16.43

    Y160L-2

    18.5

    4

    12896

    3242

    18.02

    5

    13024

    3826

    21.14

    Y180M-2

    22

    6

    12935

    4410

    24.30

    Y200L1-2

    30

    7

    12739

    4990

    27.65

    9-12

    7.7

    A

    2900

    1

    14543

    2349

    15.81

    Y180M-2

    22

     

    M16×400
    (4a)

    M16 
    (4a)

    16 
    (4a)

    2

    14887

    3010

    19.60

    3

    15171

    3671

    23.52

    Y200L1-2

    30

    4

    15319

    4332

    27.59

    5

    15220

    4993

    31.72

    Y200L2-2

    37

    6

    14985

    5654

    36.07

    7

    14583

    6315

    40.40

    Y255M-2

    45


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