Vibrating screen with screen surface capable of suspending in working process and screening method

Abstract

The invention discloses a vibrating screen with the screen surface capable of suspending in the working process and a screening method, and belongs to the technical field of material screening. The screen surface is placed on a rapping bracket. The rapping bracket vibrates under the action of excitation sources. Movement of the screening section of the screen surface in the vibrating direction of the rapping bracket cannot be limited. Due to the fact that the rapping bracket raps the screen surface continuously, the rapping bracket can throw up the screen surface continuously by adjusting the excitation strength of the excitation sources, a suspension space can be formed continuously between the rapping bracket and the screen surface, and materials on the screen surface can be continuously thrown up and screened by the screen surface.

Description

technical field [0001] The invention relates to the technical field of material screening, in particular to a vibrating screen with a suspendable screen surface during operation and a screening method. Background technique [0002] Screening equipment is an important equipment necessary for mining, mineral processing, coal preparation, building materials, thermal power plants, chemical industry and other industrial sectors. The quality of its performance will directly affect the production capacity and technical and economic indicators of these industries. [0003] The screen surface of the existing vibrating screen is generally fixed on the screen box of the vibrating screen, and the material is screened under the action of the excitation source. The existing vibrating screen has the following problems: in the actual screening process, the screen surface It vibrates with the vibration of the screen box of the vibrating screen. There is almost no relative acceleration betwee...

AI Technical Summary

Problems solved by technology

[0003] The screen surface of the existing vibrating screen is generally fixed on the screen box of the vibrating screen, and the material is screened under the action of the excitation source. The existing vibrating screen has the following problems: in the actual screening process, the screen surface It vibrates with the vibration of the screen box of the vibrating screen. There is almost no relative acceleration between the screen surface and the screen box of the vibrating screen. The screen box of the vibrating screen will not vibrate the screen surface. Poor; and in the actual screening process, the critical particles of the material are easy to block the screen holes of the screen surface, which affects the screening effect of the screen surface. The striking device has a complex structure; in addition, when sieving viscous materials, the materials are easy to stick to the sieve surface, which affects the screening of the sieve surface.

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