Model and parameters of circular vibrating screen

A rigid-flexible coupled dynamic model of a flip-flow vibrating screen

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). It is mainly used for the deep screening and dewatering of wet bulk materials [4, 5]. Wet fine materials have larger specific surface area.

Dynamics and screening characteristics of a vibrating screen …

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 ...

Dynamic Modeling and Parameters Optimization of Large Vibrating Screen …

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 …

Simulation of particle flow on an elliptical vibrating screen using the

The circular vibrating screen was also analysed ... of the simulation model is determined using the method described by Dong et al. [32], [34]: a 1/6th scaled-down model to a real elliptical vibrating screen is used; in ... The contact opportunity is the collision times between the particles and screen surface. If the parameters are …

Dynamic analysis of beam structure of linear vibrating screen

The beam structure of a vibrating screen is usually made of several structural forms, such as a hollow circular cross section, a hollow rectangular cross section, or an I-cross section. 14 Due to its high bending and torsional resistance, the hollow rectangular beam is well-suited for bearing stresses in both horizontal and vertical …

Experimental investigation of cement blain and operational parameters …

Download Citation | Experimental investigation of cement blain and operational parameters for optimal efficiency of circular vibrating screen | The effect of blain and the operational parameters ...

Dynamic characteristics analysis of a circular vibrating …

The analysis results show that the vibrating operates stably without transverse swing, the stress distribution of the screen body is uniform, can bear large dynamic loads, and has …

Trajectory Control for Vibrating Screen with

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 investigated screen included a single mechanical exciter with unbalanced masses, generating a circular vibration trajectory and operating with …

A review on the advanced design techniques and methods of vibrating …

With the traditional dynamic model for kinetic analysis process of a vibrating screen established, the external input excitation parameters (i.e., the excitation frequency and amplitude) screen and its physical properties (i.e., the screen size, the vibration mass and the vibration isolation system parameters) can be input into the dynamic ...

Simulation of particle flow on an elliptical vibrating screen using the

According to the movement trace, screens can be divided into three types: linear vibrating screens, circular vibrating screens, and elliptical vibrating screens. The elliptical vibrating screen combines the advantages of the other two types and is widely used due to the relatively high screening efficiency and processing capacity [1], [2].

Design and optimisation of rotary vibrating screening …

The geometric model of rotary vibrating screen is mainly composed of a screen box and two screen surfaces with different sieve sizes. ... In experiments and DEM simulations, the operational parameters are set as follows: 2 mm circular displacements, 23 Hz oscillatory frequency (1400 r/min) and 0.2° oscillatory amplitude is adopted in ...

Comparison of flip-flow screen and circular vibrating screen …

Comparison of flip-flow screen and circular vibrating screen vibratory sieving processes for sticky fine particles ... researchers have carried out numerous studies on the dynamics, structural design, and parameter optimization of FFSs through theoretical analysis, numerical simulation, and experiments (Zhang et al., 2016, Li et al., 2021a ...

Experimental investigation of cement blain and operational parameters …

The screen efficiency obtained at this amplitude of vibration is 96.3%. This value is obtained when the screen is positioned at a slope of 6° with feed rate of 33,333 g/s. Optimum value of screen slope (9°) is obtained for a cement blain of 3000 cm²/g when the screen vibrates at 6.89 cm/s and feed rate of 33,333 g/s.

Trajectory Control for Vibrating Screen with …

screen model was derived, and parameters of this model were estimated based on experimental data from a semi-industrial vibrating screen. The investigated screen included a single mechani-cal exciter with unbalanced masses, generating a circular vibration trajectory and operating with over-resonant frequency close to 19 Hz.

Modeling and parameter optimization for the design of vibrating …

Specifically, a mathematical model needs to be proposed, which describes the parameters concerning the screening efficiency to the design and manufacture vibrating screen. Some earlier models based on reaction kinetic theories and probability theories have been presented for batched and continuous sieving ( Standish and Meta, …

Calculating scheme of 6-DOF vibrating screen model

There are reports of this approach being applied for circular vibrating screens [38,39], linear vibrating screens [40][41][42], an elliptical vibrating screen [43] and banana screens [44,45 ...

The Modal Characteristics of Circular Vibrating Screen …

In this paper, the dynamic and kinematic analysis method is used to establish the three-dimensional model of the 2YAH1548 type circular vibrating screen of the 7.2m2, and …

Dynamic characteristics analysis of a circular vibrating screen

Aiming at the structural reliability and operation stability of the vibrating screen, this study takes the 2460 double-layer circular vibrating screen as the …

A review on the advanced design techniques and methods …

The traditional dynamic models of vibrating screen are low-DOF models and can be classified into four types, among which, the 1-, 2-, 3-DOF models are established on a 2D plane for designing a vibrating screen while the spatial 3-DOF model is mainly …

Characteristics and efficiency of a new vibrating screen …

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, …

Discrete particle simulation of particle flow and separation …

So far, DEM has been extensively applied on vibrating screens, such as the circular vibrating screen [13,14], the linear vibrating screen [15] [16][17], the elliptical vibrating screen [18], and ...

Dynamic Modeling of a Vibrating Screen Considering the …

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 ...

Research on the screening mechanisms of composite vibrating …

To strengthen the screening efficiency of traditional vibrating screens, a new type of vibrating screen, namely the composite vibrating screen, has been proposed based on the Lissajous vibration synthesis theory. The working principles of composite vibrating screens have been explained. Numerical simulations of the sieving processes …

(PDF) Dynamic Analysis Of Vibration Screen

The results show that the inherent and operating condition parameters of the large vibrating screen can be obtained from the scale-down model conveniently, which provides an effective method for ...

Modeling and parameter optimization for the design of …

In this paper, PSO algorithm was used to optimize the parameters of the kernel and the mathematic model of vibrating screen based SVR. In PSO algorithm, a …

Vibrating Screen | Mine Screening Equipment

The vibrating screen is a kind of mine classification machine for ore, mine, sand, gravel, coal, slurry, etc. which consists of a screen and a vibrator. Generally below 50 mesh for the coarse screen, and 80 mesh for the fine screen. The vibrator is an eccentric wheel that rotates under the motor's drive, making the sieve frame vibrate.

Structural Analysis and Optimization Design of Linear …

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 ...

Optimisation of a circularly vibrating screen based on DEM …

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 ...

Vibration Characteristics of an Industrial-Scale Flip-Flow Screen …

Flip-flow screens are increasingly used in the processing of fine wet coal. In this work, the vibration characteristics of an industrial-scale flip-flow screen with crank-link structure (FFSCLS) were investigated theoretically and experimentally. An improved kinematic model of FFSCLS was proposed and experiments are carried out to verify the …