| 摘要 |
A pneumatic turbine vibrator (100) comprising: a sealed casing (120), a first unbalanced turbine (105) and a second unbalanced turbine (106), said first turbine and second turbine being contained in said casing (120), at least one compressed air feed powering said turbines, said turbines being arranged to produce counter-rotating forces (F1, F2) that add up in a given vibration direction (A) and are balanced in directions other than said vibration direction. A prilling bucket comprising said vibrator is also disclosed.
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