Vibrating screen with vibration exciters

Abstract

The invention discloses a vibrating screen with a vibration exciter, and relates to the field of vibrating screens. The vibrating screen comprises screen meshes, the vibration exciters, a screen frameand supports, at least one layer of screen surface is arranged in the screen frame, and each layer of screen surface is formed by segmentally connecting a plurality of stages of screen meshes from bottom to top in sequence at certain-angle intervals, so that the screen surface gradually tilts upwards and is curve-shaped; the supports are arranged on the left side and the right side of the screenframe and used for supporting the screen frame; and a vibration exciter is arranged on each screen mesh and is used for adjusting the vibration frequency of the screen mesh and conducting stepless amplitude modulation on the vibration amplitude of the screen mesh. The vibrating screen adopts an electromagnetic vibrator, so that non-contact vibration and no noise pollution are realized; the vibration frequency and the vibration amplitude are steplessly adjustable, so that the material applicability and the screening effect are improved; the structural form that the screen surface vibrates and the screen frame does not vibrate is adopted, and compared with a traditional vibrating screen, the whole machine vibration weight is greatly reduced, and more energy is saved; and the vibration frequency and amplitude of each screen surface can be independently adjusted, so that the applicability of different materials and the screening effect of the whole machine are greatly improved.

Description

technical field [0001] The invention relates to the field of vibrating screens, in particular to a vibrating screen with an exciter. Background technique [0002] As we all know, vibrating screens are widely used in mine development, such as circular vibrating screens, elliptical screens, etc., which are also very mature in technology, but generally have the following defects: [0003] 1. The screen surface of the traditional vibrating screen is straight, resulting in a lot of materials always piled up at the feed end, which is not conducive to the screening of materials. Later, a banana sieve based on the principle of equal thickness screening came out. Its screen surface has several inclination angles. Because the initial angle is relatively steep, the rolling acceleration of the material is relatively high, and the dispersion speed is fast, so that the material remains the same during the screening process. thickness, and the processing capacity can also be made larger. ...

AI Technical Summary

Problems solved by technology

Moreover, with these two methods, only a few fixed levels of amplitude can be adjusted, and stepless adjustment cannot be performed. The labor intensity of the workers is high, and manual adjustments must be made, which is not convenient enough.

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