| 摘要 |
PROBLEM TO BE SOLVED: To prevent pyrite from being clogged up in a jet pulsion pump by letting fall pyrite from a pyrite hopper into a pyrite outflow pipe in which carrier water is let flow, and washing away pyrite to the jet pulsion pump by carrier water. SOLUTION: An intermediate part in the lengthwise direction of a pyrite outflow pipe 35 is connected perpendicularly to the lower end of a pyrite hopper discharge pipe 22, but it can be also connected at required inclination. One end of the pyrite outflow pipe 35 is connected to a branch pipe 36 branched from the way of a jet water piping 27 connected with a jet water pump 26 and a jet pulsion pump 25, and an orifice 37 is provided on the way of the branch pipe 36. The other end of the pyrite outflow pipe 35 is directly connected to a suction port 33 having inclinationαagainst the main body 30 of the jet pulsion pump 25. By wash-away effect due to high speed jet water 28a and suction effect due to carrier water 28, pyrite P is smoothly sucked and discharged.
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