A high frequency vibrating screen

Abstract

The invention discloses a high-frequency vibrating screen, which includes a screen box, a screen plate, a box-type vibrator and a drive system. The screen box includes two side plates, a plurality of beams and a drive beam. The two side plates pass through The spring is installed on the support, and the lower edges of the two are connected by a plurality of parallel beams, and the middle upper part is connected by a driving beam. The box-type vibrator is installed on the driving beam and connected with the driving system. The sieve plate It is fixed on the upper part of the beam and is formed by the butt joint of a positive inclined sieve plate and a negative inclined stepped sieve plate. The inclined sieve plate is located at the rear of the stepped sieve plate. . The present invention adopts the segmented sieve plate composed of inclined sieve plate and stepped sieve plate and uses the forced synchronous box-type vibrator as the excitation source, which can not only promote the loosening, delamination and further dehydration of coal slime, but also effectively prevent piles Material and water run-off phenomenon, improve the dehydration effect of slime water, and the failure rate is low, which greatly improves the operation reliability of the sieve machine.

Description

technical field [0001] The invention relates to a high-frequency vibrating screen suitable for the coal washing industry, which can improve the dehydration effect of coal slime water, and belongs to the technical field of screening equipment. Background technique [0002] Coal slime water treatment and coal slime recovery have always been a relatively weak link in my country's coal preparation process. In recent years, with the improvement of coal mining mechanization, the amount of pulverized coal contained in raw coal is increasing, and a certain amount of secondary slime is also produced in the process of coal washing, resulting in the The amount of water in the slime increases, which puts forward higher requirements for the recovery of the slime. The reasonable recovery of coal slime not only brings considerable economic benefits to coal preparation enterprises, but also realizes the purification and recycling of coal washing water in the coal preparation system, avoids...

AI Technical Summary

Problems solved by technology

[0007] In summary, the main problems existing in the existing high-frequency vibrating screens are: (1) The structure of the sieve plate restricts the dehydration effect of the high-frequency vibrating screen, resulting in a small processing capacity of the screen machine; (2) The vibrating motor or self-synchronized Vibrators limit the serialization, standardization and large-scale development of high-frequency vibrating screens; (3) The structural reliability of the screen machine is poor, and it is prone to failures such as side plate cracking and beam breakage

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