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  1. NEMINING2

    Air Hammering Paste Backfill System

    Thank you MortenA, Do you have documentation about changing properties of non newtonian fluid at high velocity. This is quite interesting theory. One would think that at low velocity, settlement of paste can occur and could cause blockage. But I guess at high velocities, segregation between...
  2. NEMINING2

    Air Hammering Paste Backfill System

    Thanks MikeHalloran and LittleInch for your answers, By air hammering I mean pipe that displaces at a certain pulsation frequency. Repeatedly, this will break the support of the pipe in the drift and will potentially produce a Spill. We have accelerometers installed in the pipe to monitor...
  3. NEMINING2

    Air Hammering Paste Backfill System

    Hi All, I’m contacting you because i would like your input regarding a problematic we are facing in our paste backfill systeme at our underground mine. We use a piston pump to get the paste from surface to underground. The horizontal distance can be relatively high (ratio H/V can be high for...

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