Explosive and powder modeling powder free-running property testing method

Explosive and powder modeling powder free-running property testing method

  • CN 104,949,901 A
  • Filed: 07/14/2015
  • Published: 09/30/2015
  • Est. Priority Date: 07/14/2015
  • Status: Active Application
First Claim
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1. an explosive wastewater modeling powder free-running property method of testing, proving installation comprises base plate (1), funnel plate (2), funnel (3), hold-down bars (4), column (5), fixed screw (6), rigging screw (7), catch tray (8), standard drink (9), column (5) is vertically fixed on base plate (1) by rigging screw (7), hold-down bars (4) is fixed on column (5) by fixed screw (6) level, angle is vertical with column (5), funnel (3) is fixed by hold-down bars (4), vertical placement, bell mouth upward, flow export down, catch tray (8) is placed in funnel (3) below for receiving modeling powder sample, funnel plate (2) vertically can insert funnel (3), for controlling opening or closing of funnel flow export, standard drink (9) is for determining the volume of modeling powder sample, it is characterized in that, comprise the following steps:

  • Step one;

    test unit and sample need deposit more than 2h before testing in the environment of 15 DEG C ~ 25 DEG C;

    Step 2;

    insert funnel plate (2), funnel flow export is blocked;

    The quality weighing standard drink (9) is designated as m 0;

    Step 3;

    the explosive wastewater modeling powder sample measuring a standard drink, strikes off with scraper plate, weigh, record gross mass is m t, then the quality of sample is m=m t-m 0;

    Step 4;

    sample is poured into funnel (3);

    Extract funnel plate (2) out, start timing, when sample just in time flows out discharging opening, stop timing, the time used is designated as t, and the computing formula γ

    =m/t according to wandering rate γ

    obtains the wandering rate of explosive wastewater, wherein m representative sample quality, and unit is gram;

    T represents the delivery time, and unit is second.

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