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CGX Top quality ISO certified Inclined coal roller screen for crushing/coal handling system

The application of roller screen in the coal transmission system of the power plant is very common, it is used in front of the coal breaker, will be larger than the screen holes in the coal screen material screening out into the coal breaker broken, smaller than the screen holes by its own gravity directly down into the system. At present, the traditional roller screen products on the market have many problems such as jamming, winding, bad sealing and powder leakage. Our R & D department members for the traditional roller screen problems, developed a new type of roller screen products, from the fundamental solution to the jamming, winding, powder leakage problems. Roller sieve working principle:

Because the roller is arranged according to different working angles, so when the material in the working angle of the position of the higher running speed; when the material in the working angle of the position of the lower running speed is more gentle. Two different speeds running under the material, in a certain position on the screen surface convergence began to do axial movement, so that the material is evenly distributed on the screen surface, to achieve the purpose of improving the screening efficiency and screening accuracy.

    Roller screen features:

    1. The shaft sieve is driven by a single shaft of roller motor, which is convenient for maintenance.

    2. The screen shaft at the feeding end is installed at an inclined position, which can quickly separate the materials and have a high screening effect.

    3. The sieve pieces on the two sieve shafts intersect, reducing the dead angle formed by adjacent sieve shafts and avoiding jammed sieve.

    4. There is a bypass, equipped with electric actuator, manually operated reversing mechanism, do not need to screen, directly through the side of the road, to facilitate equipment maintenance and cleaning.

    5. The bypass reversing plate adopts the structure of bar and sand, when the material falls to the reversing plate part of the particles are screened first, which favorably improves the screening efficiency.

    6. Both sides of the box layout design movable insert structure, when the need to replace the maintenance of screen shafts, sieve sheet, anti-corrosion liner is very convenient.

    7. It is equipped with coal plugging alarm and electrical control safety protection to avoid equipment damage caused by abnormal operation.

     

    main technical parameters

            item

     parameters

    model

    Screen width mm

    Roller quantity   PCS

    Capactity     t/h

    Input size ≤mm

    Output size≤mm

    Screening Efficiency%

    Motor power kw

    weightkg

    CGX-1006

    1000

    6

    100

    300

     

     

     

    30

    70

    2.2×6

    7170

    CGX-1007

    1000

    7

    300

    300

    75

    2.2×7

    8970

    CGX-1009

    1000

    9

    500

    300

    80

    2.2×9

    9890

    CGX-1409

    1400

    9

    600

    350

    80

    3.0×9

    11950

    CGX-1410

    1400

    10

    800

    350

    85

    3.0×10

    12410

    CGX-1412

    1400

    12

    1000

    350

    90

    3.0×12

    15100

    CGX-1810

    1800

    10

    1200

    400

    85

    3.0×10

    14720

    CGX-1812

    1800

    12

    1600

    400

    90

    3.0×12

    16720

    CGX-1814

    1800

    14

    1800

    500

    95

    3.0×14

    18400

     

    Application

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    Precautions during operation

    1. The motor should be firmly fixed during operation, without abnormal vibration and noise, and the motor shell is not overheated.

    2、Hard gear reducer adopts gear oil lubrication, the oil level should be kept in the middle of the sight oil window, the duty personnel should check the oil level every shift, and should replenish the oil in time when it is in short supply to ensure the normal operation of the reducer.

    3, the reducer should run smoothly, no noise, foot bolts and connecting bolts should be no loose phenomenon, no oil leakage, vibration, overheating phenomenon, the working environment temperature is -25 ℃ ~ +40 ℃, the use of the reducer's maximum temperature is not allowed to exceed +80 ℃.

    4, the sieve shaft rotation should be flexible and smooth, found that the sieve shaft does not turn should stop running, notify the maintenance personnel to check and deal with.

    5, the equipment should be screened at a high rate, the coal crusher is basically running in the no-load state, the screen sealing performance is good, the strong wind generated by the coal crusher with the dust inside the rotary, rotary in the inner bypass, the big cover and other places of the viscous deposits, so one to two months have to open the door of the view, clean up the viscous deposits, so as not to affect the normal operation of the screen.

    6, when the equipment is running, the shovel knife is easy to hang under the gun line and other debris, 6-10 months to clean up once. In order to avoid excessive accumulation of debris under the shovel knife affects the service life of the sieve.

    7、Site lighting is sufficient, communication facilities are intact, the channel is smooth and unobstructed. There should be no flammable and explosive materials nearby, and keep good fire-fighting facilities.

    8、Running to monitor and check the operating conditions. For example, the current of the motor, the temperature of the bearing part, as well as the ringing sound, the tightness of the bonding surface, the tightness of the connecting screws and so on.

    9、After the equipment stops, the duty officer should check that there should be no residue on the screen surface, and should try to remove it if there is.

    Common Failures and Handling

    warning signs

    reason

    treatment measure

    Press the start button, the motor will not turn

    The button is improperly connected or the control loop is faulty

    Press the stop button, report to the monitor, and inform the electrician class to check and deal with it

    Unpowered power supply

    No operating power supply

    Motor itself damage

    Poor screening performance

    The quince-shaped roller piece has a channeling shaft or falls off

    Notify maintenance personnel to check and deal with

    The screen shaft suddenly stops moving during operation

    Thermal protection action of the motor

    Notify electrical personnel to deal with

    The nylon pin on the coupling has been cut

    Under the condition of ensuring safety, remove the coal accumulation and debris between the sieve shaft, and notify the maintenance personnel to replace the nylon pin

    Roller screen output is insufficient

    There is too much moisture in the coal

    Reduce the output of the coal source equipment, stop the operation of the equipment and check the screen surface

    The size of the coal is too large

    There is a serious stuck phenomenon between the sieve shafts

    High bearing temperature

    Too much or not enough oil

    Pay attention to observe the temperature change, if more than 80, should immediately stop, report to the monitor, notify the maintenance personnel to check

    The bearing inner sleeve moves relative to the shaft, the jacket moves relative to the bearing seat

    bearing failure

    Motor, reducer abnormal vibration, sound or overheating phenomenon

    The anchor bolts of the motor and reducer base are loose

    Report to the monitor, reduce system output and pay attention to observation, stop immediately in serious cases, and notify the maintenance personnel to check and deal with

    Overload exercise

    The motor or reducer itself is faulty

     

    Production and processing procedures:

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