Inclusion of screening to remove fish-hook effect in the three products hydro-cyclone screen (TPHS)

Wang, Chuanzhen; Chen, Jianzhong; Hoque, Mohammad Mainul; Evans, Geoffrey M.

doi:10.1016/j.mineng.2018.03.009

Cited by 14 publications

(17 citation statements)

References 26 publications

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“…An electromagnetic flow meter and a mechanical Figure 1. Schematic diagram of the three-product hydro-cyclone (TPHS) [18].…”

Section: Experiments Rigmentioning

confidence: 99%

“…An electromagnetic flow meter and a mechanical manometer were used to measure the feed mass flow and pressure, respectively. It is worth pointing out that the TPHS size and the target cut size were considered as 150 mm and 0.25 mm, respectively in terms of our previous work [18]. The details of structure parameters for TPHS are shown in Table 1.…”

Section: Experiments Rigmentioning

confidence: 99%

“…In view of the above-mentioned types of hydrocyclone, a new apparatus called three products hydrocyclone screen (TPHS) shown in Figure 1 has been developed [18,19]. Basically, TPHS can be considered as a CH embedded by a cylindrical screen to combine both centrifugal classification and screening.…”

Section: Introductionmentioning

confidence: 99%

“…The working process between TPHS and CH are similar; however, besides the overflow and underflow, the present screen results in a new screen underflow product in TPHS. The previous experiment for TPHS and CH expose that the new cyclone could remove the "fish-hook" effect for better performances [18]. In addition, the exited computational fluid dynamics simulation and particle image velocimetry test reveal that TPHS, compared to CH, could eliminate the air column and short circuit flow for the more reasonable flow field distribution [20].…”

Section: Introductionmentioning

confidence: 99%

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Analysis and Prediction of Influencing Parameters on the Coal Classification Performance of a Novel Three Products Hydrocyclone Screen (TPHS) Based on Grey System Theory

et al. 2020

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A novel hydrocyclone including a cylindrical screen embedded in a conventional hydrocyclone (CH), named three products hydrocyclone screen (TPHS), has been successfully designed. In TPHS, the combination of centrifugal classification and screening was employed to separate particles. In this paper, Grey theory, as an effective means to the laws of both complex and uncertainty system’s behavior with small samples, was used to investigate the operational (feed concentration and feed pressure) and structural (aperture size, spigot diameter, and vortex finder diameter) parameters on performance evaluation Hancock classification efficiency (HE), imperfection (I), and cut size (d50c). The experiments of coal sample (0–1 mm) show that TPHS with coarser particles in underflow exhibited the absent “fish-hook”. The closeness calculated using the Grey System algorithm indicates that the performance of TPHS was closely related to the operation and structure parameters. Further, the order of grey incidence degree between different parameters and HE (or I or d50c) is the spigot diameter and aperture size with the highest value, the feed pressure and vortex finder diameter with the middle value, and the feed concentration with the lowest value. The prediction using the GM(1, N) algorithm implies that the dynamic prediction model for the performance evaluation can be created depending on the operation, structure and previous performance value. The mean relative errors between the predicted and actual HE, I, and d50 were 2.84%, 5.83%, and 3.57%, respectively, which exhibit the accurate prediction.

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“…An electromagnetic flow meter and a mechanical Figure 1. Schematic diagram of the three-product hydro-cyclone (TPHS) [18].…”

Section: Experiments Rigmentioning

confidence: 99%

Section: Experiments Rigmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis and Prediction of Influencing Parameters on the Coal Classification Performance of a Novel Three Products Hydrocyclone Screen (TPHS) Based on Grey System Theory

et al. 2020

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“…Hydrocyclones are extensively known as important devices for solid-fluid or solid-solid separation via centrifugal force [1,2]. The typical hydrocyclone is comprised of one tangential inlet and two axial outlets;(a) a large one at the top for discarding fines and (b) a small one at the bottom to discharge coarse particles [3,4].…”

Section: Introductionmentioning

confidence: 99%

Study of Blockage Diagnosis for Hydrocyclone Using Vibration-Based Technique Based on Wavelet Denoising and Discrete-Time Fourier Transform Method

Wang

et al. 2020

Processes

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Hydrocyclones are extensively known as important separation devices which are used in many industrial fields. However, the general method to estimate device performance is time-consuming and has a high cost. The aim of this paper was to investigate the blockage diagnosis for a lab-scale hydrocyclone using a vibration-based technique based on wavelet denoising and the discrete-time Fourier transform method. The results indicate that the farther away the installation location from feed inlet the more regular the frequency is, which reveals that the installation plane near to the spigot generated the regular frequency distribution. Furthermore, the acceleration amplitude under blockage degrees 0%, 50% and 100% fluctuates as a sine shape with increasing time, meanwhile the vibration frequency of the hydrocyclone rises with increasing throughput. Moreover, the distribution of four dimensional and five non-dimensional parameters for the time domain shows that the standard deviation, compared to the others, reduced gradually with increases in blockage degree. Thus, the standard deviation was used to evaluate the online diagnosis of the blockage. The frequency domain distribution under different throughput reveals that the characteristic peaks consisting of the faulty frequency and multiple frequency were produced by the faulty blockage and the feed pump, respectively. Hence, the faulty peak of 16–17 Hz was adopted to judge the real-time blockage of the hydrocyclone, i.e., the presence of the characteristic peak marks the blockage, and its value is proportional to the blockage degree. The application of the online monitoring system demonstrates that the combination of the time domain and the frequency domain could admirably detect the running state and rapidly recognize blockage faults.

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Geometrical configuration of hydrocyclone for improving the separation performance

Hou

Zhao

Cui

et al. 2022

Advanced Powder Technology

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Inclusion of screening to remove fish-hook effect in the three products hydro-cyclone screen (TPHS)

Cited by 14 publications

References 26 publications

Analysis and Prediction of Influencing Parameters on the Coal Classification Performance of a Novel Three Products Hydrocyclone Screen (TPHS) Based on Grey System Theory

Analysis and Prediction of Influencing Parameters on the Coal Classification Performance of a Novel Three Products Hydrocyclone Screen (TPHS) Based on Grey System Theory

Study of Blockage Diagnosis for Hydrocyclone Using Vibration-Based Technique Based on Wavelet Denoising and Discrete-Time Fourier Transform Method

Geometrical configuration of hydrocyclone for improving the separation performance

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