Vibration characteristics of an inclined flip-flow screen panel in banana flip-flow screens. (22nd December 2017)

• Record Type: Journal Article
• Authors: Xiong, Xiaoyan; Niu, Linkai; Gu, Chengxiang; Wang, Yinhua
• Is Part Of: Journal of sound and vibration. Volume 411(2017)
• Page Start: 108
• Page End: 128
• Publication Date: 2017-12-22
• Subjects: Flip-flow screen -- Screen panel -- Catenary curve -- Coal processing; Sound -- Periodicals; Vibration -- Periodicals; Son -- Périodiques; Vibration -- Périodiques; Sound; Vibration; Periodicals; Electronic journals; 620.205
• DOI: 10.1016/j.jsv.2017.09.005
• Languages: English
• ISSNs: 0022-460X

Abstract

Abstract: A banana flip-flow screen is an effective solution for the screening of high-viscosity, high-water and fine materials. As one of the key components, the vibration characteristics of the inclined flip-flow screen panel largely affects the screen performance and the processing capacity. In this paper, a mathematical model for the vibration characteristic of the inclined flip-flow screen panel is proposed based on Catenary theory. The reasonability of Catenary theory in analyzing the vibration characteristic of flip-flow screen panels is verified by a published experiment. Moreover, the effects of the rotation speed of exciters, the incline angle, the slack length and the characteristics of the screen on the vertical deflection, the vertical velocity and the vertical acceleration of the screen panel are investigated parametrically. The results show that the rotation speed of exciters, the incline angle, the slack length and the characteristics of the screen have significant effects on the vibrations of an inclined flip-flow screen panel, and these parameters should be optimized. Highlights: Vibrations of inclined flip-flow screen panels are studied using Catenary theory. Effects of parameters of the screen and the screen panel are studied. Parameters of the screen and the screen panel should be optimized.