FIELD: chemical engineering. SUBSTANCE: vibration device has housing; vibration generator; piston, adjusting member and spring; it is provided with elongated rod located inside and beyond housing; one end of this rod (beyond housing) carries piston, vibration generator (oscillator) being fitted on other end. Rod is connected with housing by means of threaded joint with nut screwed in housing. Inner diameter of nut exceeds diameter of rod. Nut passes through bellows. One end of bellows is tightly connected to nut and other end is tightly connected to rod through bearing ring fitted in housing together with spring at area where bellows is secured to rod. Adjusting device is made in form of cover with thread fitted on housing. EFFECT: enhanced efficiency.
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