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  • Submersible mixer
  • Submersible mixer

  • Product Description

    　　Model QJB Submersible Mixer, a key equipment used in the water treatment technology, can meet the technological requirement on the homogeneity of the two-phase solid-liquid flow and the fluidity in the bio-chemical process in the flow path of the water treatment technology. It is composed of the submersible motor, vanes, installation system and so on.. The submersible mixer belongs to the structure of the direct connection type. In comparison with the traditional high-power electric motor for speed reduction through the speed reducer, it is characterized by compact structure, low energy consumption, convenience in maintenance and repair and some other advantages. The vanes are made with the process of precision casting or punching, leading to high precision, large thrust as well as simple, nice-looking and streamlined profiling. The series of the products are suitable for usage in such locations as requiring solid-liquid agitating or mixing. The schematic drawing of the structure is shown as follows:

    Scope of Application
    　　The submersible mixers are mainly used for the purposes of mixing, agitating and making ring flows in the process of municipal and industrial and industrial sewage treatment and can also be used as the maintenance equipment for the landscape water environment；though agitation, they can achieve the function of creating water flow, improving the quality of the water body, increasing the oxygen content in water and effectively preventing the sedimentation of the suspended substances.

    Conditions of Usage
    In order to ensure the normal operation of the submersible mixer, please make correct selection of the operating environment and the operating modes.
    The highest temperature of the media shall not exceed     40℃;
    The scope of the pH value of the media:5~9；
    The density of the media shall not exceed     1150Kg/m3;
    The depth of submersion shall not exceed     20m

    Special Warning: The submersible mixer must operate in the complete submersion into water and cannot operate in the inflammable, explosive, highly corrosive and high-temperature environment. In line with the requirement for the special environment, our company can provide the special design to the users. 

    Performance Parameter
    The perfomance paramfers of the submersible mixer are shown in the following table with the rated voltage of 380v and the frequency of 50Hz:

    Model

    Motor power

    Rated current

    rpm of vane or propeller

    Diameter of vane or propeller

    Thrust

    Weight

    Subm-

    ersible mixer

     

    QJB0.85/8-260/3-740/C/S

    0.85

    3.2

    740

    260

    163

    55/65

    QJB1.5/6-260/3-980/C/S

    1.5

    4

    980

    260

    290

    55/65

    QJB2.2/8-320/3-740/C/S

    2.2

    5.9

    740

    320

    582

    88/93

    QJB4/6-320/3-960/C/S

    4

    10.3

    960

    320

    609

    88/93

    QJB1.5/8-400/3-740/C/S

    1.5

    5.2

    740

    400

    600

    74/82

    QJB2.5/8-400/3-740/C/S

    2.5

    7

    740

    400

    800

    74/82

    QJB3/8-400/3-740/C/S

    3

    8.6

    740

    400

    920

    74/82

    QJB4/6-400/3-980/S

    4

    10.3

    980

    400

    1200

    74/82

    QJB4/12-620/3-480/S

    4

    14

    480

    620

    1400

    190/206

    QJB5/12-620/3-480/S

    5

    18.2

    480

    620

    1800

    196/212

    QJB7.5/12-620/3-480/S

    7.5

    28

    480

    620

    2600

    240/256

    QJB10/12-620/3-480/S

    10

    32

    480

    620

    2900

    250/266

     

    1、Ofthe mixd agitating series in the above table,the value listed in the column of “Weight”contains the weight of the dome;
    2    、Insulation class for the windings of the motor:ClassF;Protective class;IP68;Operating mode of the motor:Continuous operation for 24 hours

    The model selection of submersible mixer is a rather complicated job. The correctness of the scheme selection will directly affect the normal usage of the equipment. The principle for the model selection is to enable mixer to give full play to its mixing function in the appropriate volume. This standard can generally be determined with the use of the flow velocity. In line with the different technological requirement of the sewage treatment, the optimum flow velocity for the mixer model selection shall ensure the velocity range of 0.15~0.3m/s. In case of the flow velocity lower than 0.15m/s, the effect of agitation or mixing can not be achieved. In case of the flow velocity greater than 0. 3m/s,the technological result will be affected and waste will be caused. Therefore, first of all, it is necessary to determine what kind of locations the mixer will be used in, for instance, sewage tank, slag pond or bio-chemical pond. Secondly, the parameters of the media such as content of the suspended substances, temperature, pH value as well as the shape of the pond, water depth and even the mode of installation and so on will all influence the model selection. Meanwhile, it is also necessary to consider the energy-saving factor, because this will affect the operating cost of the users in the future. Reference can be made to the diagrams of the flow field of the submersible mixer.

    　　For the purpose of obtaining the optimum mixing function under the different environments, we can supply a multiple of models of the submersible mixers to the users and provide the model selection service.

     

     

    Installation Modes and Dimensions

    　　The submersible mixers can be installed in a multiple of modes．Here are four generally accepted modes of installation for selection with reference made to the following table．Our company can also provide the specia1 designs in accordance with the demand of the users.

    Model

    a

    D

    b

    L

    H1min

    H2min

    Installation system

    QJBO.85/8

    φ48

    360

    330

    630

    500

    110

    I一1 、I一2

    QJ81.5/6

    φ48

    360

    330

    630

    500

    110

    I—1 、I一2

    QJB2.2/8

    口70

    460

    320

    970

    800

    150

    Ⅱ

    QJB4/6

    口70

    460

    320

    970

    800

    150

    Ⅱ

    QJBl.5/8

    口70

    530

    320

    960

    500

    200

    Ⅱ

    QJB2.5/8

    口70

    530

    320

    960

    500

    200

    Ⅱ

    QJB3/8

    口70

    530

    320

    1010

    800

    200

    Ⅱ

    QJB4/6

    口70

    530

    320

    1010

    800

    300

    Ⅱ

    QJB4/12

    口100

    820

    335

    1150

    1100

    300

    Ⅲ

    QJB5/12

    口100

    820

    335

    1150

    1100

    300

    Ⅲ

    QJB7.5/12

    口100

    820

    335

    1280

    1500

    300

    Ⅲ

    QJBl0/12

    口100

    820

    335

    1280

    1500

    300

    Ⅲ

    Notes：

    1.The special installation systems for the submersible mixers can facilitate the quick installation and dismantling of the submersible mixers under the conditions of no need for draining off sewage from the pond.
    2.Installation System l-1 is 0nly suitable for the pond depth<    4m and the mixer models of QJBO.85/8 and QJBl.5/6 and with the possibility 0f adjusting the angles in both the horizontal and 1ongitudinal directions.With the depth＞4m, the installation system I-2 shall be chosen.
    3.For installation systems Ⅱ and Ⅲ    ，the guide rod can rotate round the axial line of the guide rod along the horizontal direction with the maximum angle of rotation士60°．
    4.With H>    4m，it is necessary to add a supporting frame between the guide rods.
    5.The supporting frame and the 1ower support shall be fixed onto the pond wall and the pond bottom with the use of expansion bolts or chemical anchors;any pre-prepared holes can be dispensed with.
    6.While placing an order by customer    ．please supply the pond depth H and the drawing     0f the pond shape so as todetermine the dimensions of the guide rod and the number Of the suppo rting frames.
    7.The installation systems may employ the material of stainless steel or carbon steel for the selection of the corrosionresisting properties.
    8.A multiple of mixers can share one lifting system

    　The installation and positioning of fhe subme rsible mixers will p roduce a g reat impact On the effect 0f mlxmgIn order to obtain the double operating result with the half effort，It is suggested that the advice of the specialized designers shall be followed and full consideration given to the shape Of the pond，position of the water inletand outlet．the vortexresulting from the outflow from the mixer onto the structures and some other conditions. Every effort shall be made to reduce the short-circui circulation and the occurrence 0f dead corners and avoid the dashing of the flow against the pond wall for lowering the flow velocity．Making reference to the diagrams of operating modes below will help you to make areasonable selection of the mixers and thei r installation modes.

               

     

     

     

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