No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
Using the particle swarm algorithm to support the vector regression model for global optimization, the parameters of the double-deck variable screen surface vibrating screen further optimized to ...
By analyzing the characteristic parameters such as frequency and amplitude of the circular vibrating screen, the screening performance can be obtained, which provides reference and basis for...
Optimal Design of Large Circular Vibrating Screen Based on Multiple Frequencies Constraints and Analytical Sensitivity Methods Jun-Xia Yan *,1,2, Qing-Zhong Li 1,2, Li-Guo Liu 1,2 and Shan-Hua ...
OPTIMAL PARAMETERS DETERMINATION OF CIRCULAR VIBRATING SCREEN Before the optimization of the vibrating screen side plate, the optimal parameters of the structure of side plate need to be determined. The structure of side plate with stiffeners, angle stiffeners, mounting hole of shaft and vibration exciter is very complex.
Screening performance and reliability of vibrating screen depend on three aspects. Kinetic properties of screen body by dynamic modeling are summarized. Screening …
A new vibration type and motion characteristics were proposed according to the principle of manual sieving. A mechanical model of the new motion was established and the characteristics of the new vibrating screen were analyzed to establish its equation of motion by using the vibration theory, to include as technological parameters, amplitude, movement …
The dynamic model with six degrees of freedom of the vibrating screen is established based on the Lagrange method, and modal parameters (natural frequencies and modes of vibration) of the rigid body are obtained. Dynamic characteristic and reliability of the vibrating screen are important indicators of large vibrating screen. Considering the influence of …
A vibrating screen, also known as a separator or sifter, is a machine that is used to separate particles or materials into different sizes based on their particle size or shape.Here is a guide covering the definition, types, working principle, price considerations, and applications of vibrating screens. Vibrating Screen Introduction
Regarding vibrating screen motion, He and Liu [15] developed a three-degree-of-freedom linear model of a vibrating screen supported at two positions with equal stiffness for a circular motion ...
Finally, based on the binomial regression model of screening efficiency, the optimal combination of vibration parameters is calculated.FindingsIn the screening process of vibrating screen, due to the different screening environments in each area of the screen surface, the single-layer linear vibrating screen with equal screen surface parameters ...
To make simulation results more accurate, this study builds a 3D model of the vibrating screen and uses a dynamic multi-body simulation to determine the basis working …
and the parameter which depends on the screening machine construction, the sieve orifice - oscillation amplitude ratio: b A k= . (4) With usage of Eq. (2) and usage of these parameters the op-timal vibrating frequency of the screen (Xω) can be calculated based on kinetics of the grain's relative motion. The resulted
The excitation force is circular, and the vibrating screen structure is supported by symmetrical damping springs with equal stiffness. Liu et al. developed a linear model with three degrees of freedom in 3D that has an excitation force in the vertical direction and different damping spring stiffnesses in each support position. Their study ...
Aiming at the structural reliability and operation stability of the vibrating screen, this study takes the 2460 double-layer circular vibrating screen as the research object, applies Creo to build a three-dimensional model of the …
The article presents a method of vibrating screen trajectory control based on MR (magnetorheological) dampers applied in a screen suspension. A mathematical description of the dynamic screen model was derived, and …
A mathematical description of the dynamic screen model was derived, and parameters of this model were estimated based on experimental data from a semi-industrial vibrating screen.
The 3D model of the screen was created. The model screen's geometrical properties can be seen in fig. 4 Fig. 4 The geometry of the model screen used for DEM simulations The contact model was Hertz-Mindlin No-slip contact model with linear cohe-sion. In the Hertz-Mindlin model, the normal force acting between two particles in contact is ...
In this study, a 2D linear model with three degrees of freedom that considers ore inertia and the ore force over the screen calculated using discrete element method is developed in order to …
The variable elliptical vibrating screen (VEVS) trajectory is regulated to adapt the material mass along the direction of the screen length, improving the particles distribution as well as the screening efficiency. In this work, a theoretical model was developed for analyzing the screen surface motion law during VEVS-based screening process.
Screening is a common processing method for classifying granular materials and is widely used in the mining, agriculture, construction and chemical industry [[1], [2], [3]].Flip-flow vibrating screen (FFVS) is a novel screening equipment which has recently been developed to advance traditional vibrating screens (linear and circular vibrating screens).
parameters of the simulation and modeling of circular vibrating screen are as shown in Table 1. Table 1. Physical parameters of the model simulating of circular vibrating screen. Parameter Screening surface Coal particle Density (kg.m-3) 7861 1300 Shear modulus (Gpa) 79,92 1,0 Elastic coefficient 0,5 0,5 Rolling friction coefficient
The linear vibrating motion of the conventional vibrating screen needs to be replaced with a motion such as circular vibrating motion in such a way that the screening operation can be carried out with reduced blinding of the screen. The circular vibrating motion provided to the screen will provide inertial force to the screen. 4.
working characteristic of the vibrating screen, which can use rectangular hollow beam to make it conform to the requirementof the vibrating screen. e rst seven order natural frequencies, modal masses, and modal sti ness of the m 2 linear vibrating screen prototype and the model are listed in Table . rough
The main part of vibrating screen is circular vibrating screen, and its The 12th Asia Conference on Mechanical and Aerospace Engineering (ACMAE 2021) Journal of Physics: Conference Series 2235 ...
The other existing models that can describe the motion of screen panels include a catenary model, a string model, a simple support beam model, and a three-segment circular arc model. For example, Chen et al. constructed a string model to describe the vibrations with different tensions which overcomes the deficiency of static theory, and ...
Abstract: Multiple frequencies constraints and analytical sensitivity methods were used in the structural optimization design of the side plate of 4YK1860 vibrating screen to reduce the …
The VFFS is developed from the traditional circular vibrating screen. For the CVS, the drive of the exciter causes the screen frame to vibrate periodically. However, the VFFS contains two vibrating frames, the main screen frame and the floating screen frame, which provide two vibrations by a single drive of the exciter.
The double-layer high-frequency vibrating screen machine is widely used in the tobacco industry, and its controllability of vibration has a great influence on the screening quality of cut tobacco.
2 The Establishment of Finite Element Model The linear vibrating screen of this model is mainly composed of screen box, exciter, ... The main parameters of the vibrating screen are: ... Han XM. Dynamic response finite element analysis of circular vibrating screen box. Constr Mach. 2008;29(11):63–5. 6. SuM,TongX,LiuQ,ZhangKD,WangGF ...
Xinxiang Dayong Vibration Equipment Co., Ltd. is a international manufacturing factory with research and development, design, production and sales services, it is committed to providing customers with reasonable and efficient screening, conveying and crushing equipment design solutions. The company have more than 100 employers, and setted with R & D, technology …
