Sparger device for sparging a fluid into a slurry tank, flotation apparatus and system having such sparger device, and method for setting control fluid pressure of a sparger device
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United States of America Patent
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Apr 14, 2020
Grant Date -
Sep 19, 2019
app pub date -
Jun 4, 2019
filing date -
Dec 9, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A sparger device for sparging fluid into a slurry tank includes a hollow elongated body having a nozzle opening for sparging a sparging fluid flow to a slurry tank. The device further includes a needle for opening and closing the nozzle opening, and a control device being arranged to actuate the needle. The control device includes a control chamber partitioned into a first portion and second portion such that a pressure differential between the first portion and the second portion, closes or opens the nozzle opening and prevents slurry backflow from the slurry tank. The second portion may be provided with a control fluid pressure preventing slurry. A flotation apparatus and a flotation system in with such a sparger device are also discussed.
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