Variable frequency electromagnetic strong vibration mesh screen

The utility model relates to a variable frequency electromagnetic strong vibration mesh screen which belongs to screening machines. The utility model is composed of an electric control cabinet (1) controlled by a computer in a centralized way, a machine frame (10), a double-passage screen box (6), a mesh screen (5), an electromagnetic exciter (12), etc., wherein the screen box (6) is installed on the machine frame (10) by a support (7) and a rubber damping spring (11), and a secondary damping spring (11) is installed between the machine frame (10) and a foundation; the electromagnetic exciter (12) is installed on an outer side plate of the screen box (6); the mesh screen (5) in the screen box (6) is tightly supported by a vibrating arm (13), a vibrating rod (14) and a rubber cap (15); the upper and the lower side surfaces of the screen box (6) are provided with a sealing plate (28) and a sealing material collecting device (29). A material distributor (4) provided with a plurality of discharge ports is arranged on the upper side of the screen box (6); thus, the utility model has the characteristics that the frequency, the amplitude and the time can be controlled and regulated, the vibration strength is large, the efficiency is high, the treating capacity is large, the feed impact is small and uniform, the damping effect is good, the noise is low, the loss of fine materials and the environmental pollution can be prevented, etc.