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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 ...
The operating manuals and drawings for your particular screen provide these specifications. Refer to this data before operating your screen or before making any major changes in the screen's original intended function, deck openings, type of deck surface, feed, sizes, or tonnage. Here are some tips to ensure smooth operation and maintenance.
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...
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 …
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 …
In this paper, the modal analysis and dynamic simulation of a large linear vibrating screen are carried out by using Abaqus, a large general finite element software, and an …
The effect of blain and the operational parameters (i.e. amplitude of vibration, screen deck angle and cement blain) on the efficiency of screen is determined experimentally. A feed rate of 33,333 grams per second (g/s) and mesh size of 0.1 cm × 0.1 cm are kept constant while amplitude of vibration, screen deck angle and value of blain …
Finally, based on the binomial regression model of screening efficiency, the optimal combination of vibration parameters is calculated.,In 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 cannot ...
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 …
The mass of side plate of the vibrating screen was taken as object function, mode frequencies were regarded as state parameters, size of the plate was used as 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.
He et al. established a twodegree-of-freedom mechanical model of a single-axis circular vibrating screen and analyzed the response characteristics of the vibration system in the resonance area [11
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 ...
Purpose The purpose of this paper is to study the screen surface parameters of the double deck vibrating screen, in sections, to determine the influence of each part of the screen surface on the ...
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
Non-linear regression model of vibration screen based on PSO–SVR. By establishing mathematic model between screening efficiency and parameters, 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 parameters of this model were estimated based on experimental data from a semi-industrial vibrating screen. The …
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 …
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 ...
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 ...
1. Introduction1.1. Brief introduction to flip-flow vibrating screen (FFVS) 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 …
By taking advantage of periodic high-frequency flexure deformation of screen panels, flip-flow vibrating screens (FFVSs) can achieve outstanding sieving performance. As the amplitude of the relative displacement between the main frame and the floating frame of a FFVS exceeds the relaxing length of screen panel, the tensile stress …
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 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 …
The basic working parameters, such as the forces acting on the bearings of the drive shafts and the supporting springs, the amplitude, velocity, acceleration, and orbit of the screen surface, have an important role in the design of a vibrating screen. These parameters are usually determined by establishing a vibrating model and solving the ...
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 ...
A specially designed laboratory scale circularly vibrating screen was constructed, allowing the observation of the motion of particles during the screening process and precise control of the parameters of vibration. Fig. 1 shows a photo of the laboratory-scale screen model used in the experiment and schematics of the model used in DEM ...
In improving dewatering performance, Dong et al. 1,2 developed a vibrating-dewatering screen with a unique structure that uses side plate beam excitation. Shi 3 studied the high-frequency coal slime …
The scholar not only proved the accuracy of the model through experiments, but also studied the influence of structural parameters and damping parameters on the dynamics of the vibrating screen. Zhou, Zhang, Wang, and Mao (2020) and Gong, Wang, and Oberst (2018) used a disc spring system and a nonlinear spring model, …
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 ...