Elliptical vibrating screen for asphalt mixing plant

Abstract

The invention discloses an elliptical vibrating screen for an asphalt mixing plant. The elliptical vibrating screen comprises a vibrating screen body, two supporting plates, a motor base cross beam, two vibrating motors, a screen sieve and a tensioning device. A plurality of middle supporting beams are arranged in a side plate of the vibrating screen body from top to bottom. One end of the screen sieve of the vibrating screen is connected to the middle supporting beams, and the other end of the screen sieve of the vibrating screen is connected to the screen sieve tensioning device. The two supporting plates with the size as same as the inner width of the side plate are arranged on the top of the vibrating screen body, and the motor base cross beam of a rectangular beam structure is connected between the two supporting plates. The two vibrating motors are symmetrically fixed to the motor base cross beam and have the same rotation speed and different exciting force. In the operation process of the vibrating screen, the rotation directions of the two vibrating motors are opposite. The elliptical vibrating screen integrates a linear vibrating screen and a round vibrating screen and has the advantages that the processing capacity is high, the equipment height is small, the structure is reasonable, materials are easily layered, holes will not be blocked easily and the screening efficiency is high.

Description

technical field [0001] The invention relates to equipment for an asphalt mixing plant, in particular to an elliptical vibrating screen for an asphalt mixing plant. Background technique [0002] At present, the vibrating screens used in asphalt mixing plants are divided into linear vibrating screens and circular vibrating screens according to the trajectory. The linear vibrating screen is characterized by large conveying capacity and low equipment height, but its linear motion track prevents materials from being effectively layered and screened. Moreover, materials with a similar mesh size are stuck on the screen and are difficult to throw out with the vibration of the screen machine, resulting in hole blocking. If the screen is not cleaned in time, the screening efficiency of the vibrating screen will be greatly reduced. For the circular vibrating screen with a circular motion track, when the screen body vibrates, the material can be well stratified and not easily stuck in ...

AI Technical Summary

Problems solved by technology

The linear vibrating screen is characterized by large conveying capacity and low equipment height, but its linear motion track prevents materials from being effectively layered and screened

Moreover, materials with a similar mesh size are stuck on the screen and are difficult to be thrown out with the vibration of the screen machine, resulting in hole blocking. If the screen is not cleaned in time, the screening efficiency of the vibrating screen will be greatly reduced.

For the circular vibrating screen with a circular motion track, when the screen body vibrates, the material can be well stratified and not easily stuck in the screen hole, which has a high screening efficiency, but its disadvantages are large inclination angle and high equipment. The conveying capacity is small, in the asphalt mixing plant, it can only be used for miniaturization

[0003] For existing elliptical vibrating screens in other fields, the vibrating motor is usually installed on the side plate of the screen body, while the vibrating screen on the asphalt mixing plant needs to be equipped with corresponding insulation equipment in the screen body, so the existing other fields cannot be used The elliptical vibrating screen is applied to the mixing station

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