Common troubleshooting and solutions for concrete mixing stations

Concrete Mixing Station Troubleshooting:

First, the mixer main motor does not move
Symptom: Press the mixer on the console start button, the mixer does not start.
Analysis of the reasons:

  • 1, air compressor is not activated or gas supply system pressure is not reached
  • 2, stirring the host maintenance protection switch and the host with a key tight stop switch is not connected.
  • 3, the console on the tight stop switch is not reset.
  • 4, the host power switch is not connected.
  • 5, the host stop signal must be reset.

Process:

  • 1, check the compressed air detection signal (greater than 0.4MPa pressure signal) is sent to the PLC, that is, I8.0 whether there is signal. If I8.0 no signal, then check the air compressor pressure is greater than 0.4MPa, when the pressure reaches 0.4MPa or more, I8.0 no signal, then check the electrical contact pressure gauge adjustment is normal or damaged until I8.0 signal.
  • 2, check the mixing console maintenance switch switch signal is sent to the PLC
  • 3, check the console on the tight stop switch is reset,
  • 4, check the host power switch is connected.
  • 5, check the host to stop the button is reset

Second, in the automatic production process, the ingredients station said good after the material unloading
Symptom: In the automatic production process, one or more aggregate said in the measurement bucket, do not discharge, the system stops running.
Analysis of reasons:

  • 1, to be hopper door is not in place.
  • 2, weighing instrument does not discharge the output signal.
  • 3, the belt machine is not started.
  • 4, aggregate said fine door is not in place.
  • 5, aggregate must define the discharge order.

Process:

  • 1, check the hopper to be bucket valve is not in place or close the door, close the door, I6.7 signal.
  • 2, check the aggregate weighing instrument is unloading output signal, stone 1 discharge I0.4, stone 2 unloading I0.7, sand 1 unloading I1.5, sand 2 unloading I1.2.
  • 3, check the belt machine is started.
  • 4, check the aggregate of the fine door is closed in place, stone 1 fine closed door I8.2, stone 2 fine closed door I8.3, sand 1 fine closed door I8.5, sand 2 fine closed door I8.4.

Third, the oblique belt is not moving
Symptom: After the mixer is started normally, press the beveled belt start button on the console, and the oblique belt does not start.
Analysis of the reasons:

  • 1, the mixer did not start.
  • 2, oblique belt maintenance stop switch is not reset.
  • 3, oblique belt machine power switch is not connected.
  • 4, oblique belt machine stop button switch is not reset.

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