Novel rotation type compound vibrating screen

Abstract

The invention adopts transport motion as round or linear or elliptical vibration mode motion of a screen box, and a screen drum installed on the screen box moves along with the screen box and makes fixed axis relative rotation around the longitudinal axial line of the screen drum. Materials in the screen drum make point spatial compound curvilinear motion. Because the materials in the screen are under the action of multi-directional exciting force in the space, all kinds of different demands on the vibrating screen can be better met. The screen box is installed on a base by a bearing spring, and is excited by an exciting motor to make round or linear or translational elliptical or variable linear or variable elliptical vibration and vibration in other different vibration modes. The screen drum makes relative fixed axis rotation at uniform speed or variable speed or in a set rule around the own axial line by an anti-vibration driving motor. Vibration of the screen box can be designed and determined based on a ''center of force theory of an inertia vibrating screen'' and an ''unequal mass-radius product following self-synchronizing theory'', so that the screen box can make vibration in all kinds of different trace vibration modes. Rotation of the screen drum can be at constant speed or variable speed or in a pulse mode or other set rules.

Description

technical field [0001] The patent of the invention relates to vibrating screens for mud treatment, mud water treatment and material screening, deintermediation and transportation, including oil and gas drilling, water conservancy and hydropower projects, underground space projects, urban construction projects and mineral processing, coal preparation, chemical industry, medicine, food, Vibrating screens used in operations in non-ferrous metals, transmission and other industry sectors. Background technique [0002] With the vibrating screens widely used in domestic and foreign mud treatment, mud water treatment and material screening and conveying operations, the demand for de-mediation, solid-liquid separation, solid-phase particle classification and improvement of screening efficiency is becoming more and more urgent. At present, most of the corresponding vibrating screens at home and abroad belong to the vibrating screen with a single vibration mode, which has been difficul...

AI Technical Summary

Problems solved by technology

[0002] With the vibrating screens widely used in domestic and foreign mud treatment, mud water treatment and material screening and conveying operations, the demand for de-mediation, solid-liquid separation, solid-phase particle classification and improvement of screening efficiency is becoming more and more urgent. At present, the corresponding vibrating screens at home and abroad are mostly vibrating screens with a single vibration mode, which is difficult to meet the above-mentioned increasingly high requirements.

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