Method and vibration screen easy to operate, long in service life and efficient in screening

Abstract

The invention relates to a method and a vibration screen which are easy to operate, long in service life and efficient in screening, and belongs to the technical field of material screening. The vibration screen comprises a screen frame, a net rack, a screen net and net tightening hooping strips. The net rack is located in the screen frame. The vibration screen is characterized in that the net tightening hooping strips are placed on the inner wall of the screen frame, through holes are formed in the positions, corresponding to the net tightening hooping strips, of the screen frame, and the ends of the net tightening hooping strips penetrate out from the through holes; when the screen net needs to be replaced, firstly, the screen net is horizontally placed on the net rack, then the screen frame is placed on the screen net to fall down, and after the screen net is bent downwards through the screen frame, the screen net is laid on the outer wall of the net rack in an attaching mode; the ends of the net tightening hopping strips are connected with a tightening device, and the net tightening hooping strips are tightened by operating the tightening device. According to the method and the vibration screen, due to the fact that the screen frame and the net tightening hooping strips are of an integrated structure, during screen net replacing, a user only needs to place the screen net to the upper end of the net frame neatly, then the screen frame is placed on the screen net to fall down at a time, through vertical falling of the screen frame, the screen net can be laid on the outer wall of the net rack after being bent, manual bending of the screen net is not needed, and no requirement for the skill proficiency of operators exists.

Description

technical field [0001] The invention belongs to the technical field of material screening, and in particular relates to a vibrating screen. Background technique [0002] Enterprises widely use vibrating screens to sort materials. Commonly used vibrating screens include structural components such as screen frames, grid frames, screen meshes, stretching hoops, springs connected to the screen frames, and vibration motors. The screen is vibrated by starting the vibrating motor, so that the small particles pass through the screen and leak down, and the large particles are blocked on the screen. The screen used in the vibrating screen is generally woven with metal wire, nylon wire, etc. The screen is a vulnerable part and needs to be replaced after a period of use. The important factors affecting the use effect of the vibrating screen are whether the screen can be tightened and whether the material can be evenly distributed - the tighter the screen, the better the vibrating scre...

AI Technical Summary

Problems solved by technology

[0012] (1) Due to the fast flow rate of the slurry, when the slurry is poured from a certain height to the screen, it will have a greater impact on the screen, which is easy to cause damage to the screen and affect the service life of the screen.

[0013] (2) When the slurry is poured on the screen, the speed is fast, so that the screen has no time to screen the slurry, so more and more slurry will be poured on the screen, and the pressure generated by too much slurry will also cause Damage to the screen and increase the burden on the vibrating motor, reducing the service life of the vibrating screen

[0014] (3) The slurry falls at a faster speed, so it splashes around after falling on the screen, which pollutes the environment of the workplace and also causes a waste of slurry

Although the addition of screens solves the problem of single-layer screens falling, it also brings new problems: when the vibrating motor is working, some materials will inevitably be retained between the two layers of screens, which affects the screening of materials; and Due to the different amplitudes of the two layers of screens, the upper and lower screens will constantly collide during vibration, resulting in vibration friction, and the material friction between the two layers of screens will cause great wear and tear on the screens.

[0018] In the industry, researchers have not found a good solution to how to improve the working condition of the screen, effectively protect the screen, fully screen and discharge dry residue, and enable the screen to be quickly replaced and effectively tightened when damaged.

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