公开(公告)号：US20030213731A1

公开(公告)日：2003-11-20

申请号：US10427695

申请日：2003-05-01

Applicant: M-I L.L.C.

Inventor： Ari M. Hukki ,  Peter D. Knox

IPC: B07B001/42

CPC classification number: B07B1/42 ,  B07B1/46

Abstract: A screening system including a vibratory screen separator having a resiliently mounted frame with a low frequency vibratory drive coupled to that frame. A taut screen is rigidly mounted in the frame and a vibration transmitter assembly is resiliently mounted to the frame and fixed to the taut screen. The vibration transmitter includes a planar ring compressed against the taut screen and vibration generators. The vibration generators are air turbines with eccentric weights. The frame includes support elements extending from the cylindrical outer housing sections of the separator to a concentrically mounted support ring. Compressed air is provided to the turbines through hollow structure within the frame. Valves control exhaust from the turbines. The low frequency vibratory drive operates in a range of about 8 Hz to 30 Hz while the vibration generators provided by the air turbines operate in a range of about 275 Hz to 600 Hz.

Abstract translation: 一种筛选系统，包括具有弹性安装的框架的振动筛分离器，该框架具有耦合到该框架的低频振动驱动。 绷紧的屏幕被刚性地安装在框架中，并且振动发射器组件弹性地安装到框架并固定到拉紧的屏幕上。 该振动发生器包括一个平面环，该平面环压靠在拉紧屏幕和振动发生器上。 振动发生器是具有偏心重物的空气涡轮机。 框架包括从分离器的圆柱形外壳部分延伸到同心安装的支撑环的支撑元件。 压缩空气通过框架内的中空结构提供给涡轮机。 阀门控制涡轮机的排气。 低频振动驱动器在约8Hz至30Hz的范围内工作，而由空气涡轮机提供的振动发生器在约275Hz至600Hz的范围内工作。