Abstract: A treatment device for free-flowing bulk material includes a bulk material carrier with an inclined treatment area, a counter-vibration mechanism, which extends longitudinally under the bulk material carrier and runs horizontally or likewise in an inclined manner, a cable suspension for suspending the counter-vibration mechanism, supports for supporting the bulk material carrier in the vertical direction on the counter-vibration mechanism, a spring assembly with several springs connecting the bulk material carrier and the counter-vibration mechanism and providing an elastic support perpendicular to the vertical direction both in the longitudinal direction and in the transverse direction of the counter-vibration mechanism, and a vibration exciter for exciting the treatment area in the longitudinal and transverse direction of the counter-vibration mechanism. The treatment device is distinguished by a small constructional outlay and low maintenance requirements.

Abstract: A treatment device for free-flowing bulk material includes a bulk material carrier with an inclined treatment area, a counter-vibration mechanism, which extends longitudinally under the bulk material carrier and runs horizontally or likewise in an inclined manner, a cable suspension for suspending the counter-vibration mechanism, supports for supporting the bulk material carrier in the vertical direction on the counter-vibration mechanism, a spring assembly with several springs connecting the bulk material carrier and the counter-vibration mechanism and providing an elastic support perpendicular to the vertical direction both in the longitudinal direction and in the transverse direction of the counter-vibration mechanism, and a vibration exciter for exciting the treatment area in the longitudinal and transverse direction of the counter-vibration mechanism. The treatment device is distinguished by a small constructional outlay and low maintenance requirements.

Abstract: In a method for crystallising plastic granules with a tendency to conglutinate, in particular PET and PU granules, the granules are subjected to vibratory excitation in a vibrating trough (1) transversely to the direction of longitudinal extension of the vibrating trough (1), at around their reaction temperature. The flow of granules follows a spiral path through the trough, achieving a narrow dwell time spectrum and a homogenous temperature gradient for the granules. Conglutination is also reliably prevented.

Abstract: In a method for crystallising plastic granules with a tendency to conglutinate, in particular PET and PU granules, the granules are subjected to vibratory excitation in a vibrating trough (1) transversely to the direction of longitudinal extension of the vibrating trough (1), at around their reaction temperature. The flow of granules follows a spiral path through the trough, achieving a narrow dwell time spectrum and a homogenous temperature gradient for the granules. Conglutination is also reliably prevented.