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Du'an Environmental Protection Equipment (Jiangsu) Co., Ltd
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Stainless steel sludge reflux pump QJB-W1.5/8
Stainless steel sludge reflux pump QJB-W1.5/8
Product details

    Stainless steel sludge reflux pumpQJB-W1.5/8 型Special waterproof cables are used, and the junction box is fully enclosed, isolated from surrounding liquids and stator boxes. The shaft of the motor is made of stainless steel material, and the rotor undergoes dynamic balance testing. Oil is used to lubricate and cool the mechanical seal friction pair, and to isolate the penetrant; The impeller has three blades, which are wide and thin, with a smooth and swept back surface, efficient and unobstructed operation, and have self-cleaning function.Stainless steel sludge reflux pumpThe purpose of importing conical tubes is to form the best flow state; The discharge joint is used to fix the inlet cone pipe on the outlet pipe; The guiding device consists of two pipes (conduits) and an upper conduit clamp.

    QJB-W stainless steelsludge return pumpIt is a commonly used sewage and sludge reflux equipment in the aeration tank of the sewage treatment industry,sludge return pumpThe function is to keep the sewage slurry in the sludge tank in the state of activated sludge, and to increase the concentration of suspended solids in the aeration tankMLSS maintains a relatively stable state, so maintaining a uniform mud concentration in the aeration tank requires the use of a sludge reflux pump. The sludge reflux pump can also be used as a special equipment for the reflux and denitrification of mixed liquids in sewage treatment plants, as well as for irrigation equipment; The main feature of this sludge reflux pump product is its high flow rate and low head, which keeps the sewage slurry in a back and forth flow state without solidification. The temperature of the medium during the operation of the sludge reflux pump cannot exceed 40 ° C, the pH value of the medium in the sludge reflux pump is within the range of 5-9, and the depth of the sludge reflux pump penetrating into the medium cannot exceed 10 meters.


    QJB-W1.5/8Stainless steel sludge reflux pumpstructural design


    Specially designed device components and equipment spare parts enable the sludge reflux pump to achieve optimal performance.
    1. Cable: The cable adopts a specially designed waterproof cable;
    2. Junction box: The junction box is fully enclosed and isolated from the surrounding liquid and stator box;
    3. Motor: 50Hz squirrel cage 3-phase submersible asynchronous motor, F-class insulation, protection level IP68. The motor is cooled by the surrounding medium;
    4. Shaft: The shaft of the electric motor is made of stainless steel material, and the rotor undergoes dynamic balance testing;
    5. Sealing: The static seal is an O-ring seal. The shaft seal is a mechanical seal that isolates the oil chamber from the surrounding medium;
    6. Bearing: Imported bearings are used, with a designed service life of over 100000 hours;
    7. Oil chamber: Oil is used to lubricate and cool the mechanical seal friction pair, and isolate the permeate;
    8. Impeller: The impeller has three blades, which are wide and thin, with a smooth and swept back surface, efficient and unobstructed operation, and have self-cleaning function;
    9. Imported cone tube: The purpose of imported cone tube is to form the best flow state;
    10. Discharge joint: The discharge joint is used to fix the inlet cone pipe on the outlet pipe;
    11. Guiding device: The guiding device consists of two pipes (conduits) and an upper conduit clamp.

    QJB-W1.5/8Stainless steel sludge reflux pumpInstallation features

    1. Proper installation and use are the basic guarantees for the long-term and normal operation of this pump.

    2. The sludge reflux pump adopts an automatic coupling installation system, which can quickly lift the equipment for inspection and maintenance without any mechanical disassembly, making installation convenient and fast.

    3. Except for the wall penetrating pipe that needs to be pre embedded, the guide rod and lifting bracket of this equipment are connected to the pool body with steel expansion bolts and do not require pre embedded parts.

    4. Pre embedded parts and snap doors are purchased and installed by users, and users should pay attention when placing orders.


    Stainless steel sludge reflux pump model:

    model

    Motor power (kW)

    Rated current (A)

    Impeller diameter (mm)

    Protection level

    insulation class

    Nominal diameter (mm)

    QJB-W 1.5

    1.5

    4.1

    400

    IP68

    F

    400

    QJB-W 2.5

    2.5

    6.8

    400

    IP68

    F

    400

    QJB-W 4

    4

    15

    615

    IP68

    F

    600

    QJB-W 5

    5

    16

    615

    IP68

    F

    600

    QJB-W 7.5

    7.5

    23

    615

    IP68

    F

    600

    QJB-W 10

    10

    30

    615

    IP68

    F

    600

    QJB-W 15

    15

    42

    615

    IP68

    F

    600

    QJB-W 18.5

    18.5

    52

    615

    IP68

    F

    600

    QJB-W submersible sludge reflux pump model specification parameters

    model

    nominal diameter

    impeller diameter

    traffic

    head

    power

    weight

    mm

    mm

    m3/h

    m

    KW

    kg

    400QJB-W1.5

    400

    400

    180-990

    0.25-0.86

    1.5

    130

    400QJB-W2.5

    400

    400

    270-1116

    0.3-1.02

    2.5

    135

    400QJB-W3

    400

    400

    325-1260

    0.3-1.15

    3

    140

    QJB-W4

    600

    615

    360-2340

    0.26-1.15

    4

    230

    QJB-W5

    600

    615

    415-2450

    0.28-1.26

    5

    236

    QJB-W7.5

    600

    615

    485-2735

    0.35-1.46

    7.5

    295

    QJB-W10

    600

    615

    666-3000

    0.42-1.76

    10

    300



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