sir,

    we have a M2.25 batching plant for producing concrete. after mixing, the concrete is discharging through one conical shaped discharge hopper. sometimes the concrete is getting blocked in the mixer. if we can know whether concrete is discharging or not we can prevent the blockage. i want to get the feedback that is concrete is discharging through the hopper .for that what can we implemented in that .

I Have two ideas

1. we can fix a CCTV camera.

2..we can fix a limit switch and one steel bar is extended to the hopper . when the concrete is discharging concrete will touch the steel bar and that steel bar will actuate the limit switch.

 out of these two ideas what can we implement.. we should consider discharging material is concrete and site condition is dusty.

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