Vibration screen provided with lifting type hole cleaning needle plate

Abstract

The invention discloses a vibration screen provided with a lifting type hole cleaning needle plate. The vibration screen comprises a screen frame, a screen box, a screen plate, a vibration motor and the hole cleaning needle plate. The screen box is arranged at the upper end of the screen frame. Damping springs are connected between the screen frame and the screen box. The screen plate is arrangedin the screen box. The vibration motor is arranged at the lower end of the screen box. A cover plate is laid at the upper end of the screen box. Two telescopic rods are vertically and symmetrically arranged on the two sides of the lower end of the cover plate, and the hole cleaning needle plate is connected between the lower ends of the two telescopic rods. The hole cleaning needle plate is arranged above the screen plate. The hole cleaning needle plate comprises a base plate which is horizontally arranged and a plurality of hole cleaning needles vertically arranged on the lower end face of the base plate. The multiple hole cleaning needles correspond to a plurality of circular screen holes in the screen plate in an up-down manner. By means of the above manner, the hole cleaning needle plate can be used for dredging the screen holes when the screen holes of the screen plate are blocked, and the screening work progress can be prevented from being influenced.

Description

technical field [0001] The invention relates to the field of vibrating sieves, in particular to a vibrating sieve equipped with a lifting type hole cleaning needle plate. Background technique [0002] Vibrating screens are commonly used in the mining, quarrying and mineral processing industries to separate materials such as coal according to size etc. A vibrating screen typically has a frame with a screen. The frame is generally rigid, with multiple bracing elements for structural integrity. The frame is mounted on springs or the like and has a vibrator which causes the frame and accordingly the screen to vibrate. The screen has apertures that allow smaller sized materials to pass through. In use, the frame vibrates and material passes over the screen and separates from the larger material as the smaller material passes through the apertures in the screen. When the vibrating screen vibrates and sieves wet and sticky materials, it is easy for the material to embed into th...

AI Technical Summary

Problems solved by technology

When the vibrating screen vibrates and sieves wet and sticky materials, it is easy for the material to embed into the screen hole of the sieve plate and cause the screen hole to be blocked. The traditional vibrating screen does not have the function of dredging the screen hole. When the screen hole is blocked, it needs to be cleaned manually, which wastes a lot of time Necessary time also affects the process of screening work

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