Banana relaxation screen without main beam

Abstract

The invention relates to a banana tension and relaxation screen, in particular to a banana tension and relaxation screen without a girder, and belongs to the technical field of material screening. The banana tension and relaxation screen comprises a screen body, the surface of the screen body is designed to be in a multi-angle fold line shape, and the screen body comprises a main screen frame, a floating screen frame and a screen plate. The main screen frame is connected with the floating screen frame through the screen plate and an elastic assembly. The main screen frame comprises a left side plate, a right side plate and a fixing beam connected between the bottoms of the two side plates. Box-type vibration exciters are fixed to the upper portion of the left side plate and the upper portion of the right side plate and are connected through a middle shaft, wherein one box-type vibration exciter is connected with a drive device. According to the banana tension and relaxation screen, the screen weight is reduced, the number of easily-broken parts is reduced, power consumption is low, energy is saved, the environment is protected, and screening efficiency is high.

Description

technical field [0001] The invention relates to a banana relaxation screen, in particular to a linear vibration banana relaxation screen without a main beam, which belongs to the technical field of material screening. Background technique [0002] At present, the banana screen structure in the prior art is composed of a screen body, a vibrator, and a motor drive part. The screen surface is usually designed with multi-angle broken lines. Because its shape is similar to a banana, it is called a banana screen. The vibrator is installed on the vibrating beam, and the motor drives the vibrator composed of two shafts with unbalanced weights. The two shafts rotate in reverse and synchronously, and the centrifugal force generated vibrates the screen body. The vibration drives the material on the screen surface to vibrate to achieve the purpose of screening. The screen machine adopts large amplitude and high vibration intensity to achieve screening. The disadvantages are heavy weight...

AI Technical Summary

Problems solved by technology

The vibrator is installed on the vibrating beam, and the motor drives the vibrator composed of two shafts with unbalanced weights. The two shafts rotate in reverse and synchronously, and the centrifugal force generated vibrates the screen body. The vibration drives the material on the screen surface to vibrate to achieve the purpose of screening. The screen machine uses large amplitude and high vibration intensity to achieve screening. The disadvantages are heavy weight, large power consumption, and low screening efficiency.

Moreover, due to its single vibration mode, especially when the content of wet fine particles in the material is high, the particle size is small, the specific surface area is large, and there are external moisture and clay, the wet fine particles interact with each other. Bonded into agglomerates, easy to attach to the sieve surface to block the sieve holes and affect the sieving effect

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