Size separation of particulates in a trommel screen system

Chen, Yi Shun; Hsiau, Shu San; Lee, Hsuan Yi; Chyou, Yau-Pin; Hsu, Chia Jen

doi:10.1016/j.cep.2010.09.003

Cited by 24 publications

(10 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bulk materials can be sorted in various ways. While a lot of bulk materials can be sorted using methods that make use of their shape (e.g., trommel screens [2]) or density, some of them are either not suited for these types of sorting schemes or even indistinguishable regarding these properties.…”

Section: Introductionmentioning

confidence: 99%

TrackSort: Predictive tracking for sorting uncooperative bulk materials

Pfaff

Baum

Noack

et al. 2015

2015 IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems (MFI)

View full text Add to dashboard Cite

Optical belt sorters are a versatile, state-of-the art technology to sort bulk materials that are hard to sort based on only nonvisual properties. In this paper, we propose an extension to current optical belt sorters that involves replacing the line camera with an area camera to observe a wider field of view, allowing us to observe each particle over multiple time steps. By performing multitarget tracking, we are able to improve the prediction of each particle’s movement and thus enhance the performance of the utilized separation mechanism. We show that our approach will allow belt sorters to handle new classes of bulk materials while improving cost efficiency. Furthermore, we lay out additional extensions that are made possible by our new paradigm

show abstract

Section: Introductionmentioning

confidence: 99%

TrackSort: Predictive tracking for sorting uncooperative bulk materials

Pfaff

Baum

Noack

et al. 2015

2015 IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems (MFI)

View full text Add to dashboard Cite

show abstract

“…The flow of particles through the orifices on the rotating drum occurs due to the combination of the mobility of grains (like falling in avalanches, ballistic trajectory…) caused by the rotation regime of the drum and jamming in the vicinity of the orifices. The rotating screen drum can be managed by controlling the product flow, the driving speed and inclination angle of rotation axis (Prasanna Kumar, 2005;Chen et al 2010;Kopral et al, 2011). The screening efficiency was inversely proportional with the product flow rate and the drum rotational speed.…”

Section: Introductionmentioning

confidence: 99%

Screening efficiency and rolling effects of a rotating screen drum used to process wet soft agglomerates

Bellocq

Ruiz

Delaplace

et al. 2017

Journal of Food Engineering

View full text Add to dashboard Cite

The rotating screen drums are largely used in most powder handling and processing industries. They are commonly used for size separation of granular materials. Objectives of the present work are to better understand both roles, screening efficiency and shaping effects and to investigate and model which process parameters are relevant when using an inclined rotating screen drum for processing wet couscous agglomerates. Durum wheat semolina was used as raw material to produce the wet agglomerates. The pilot rotating screen drum equipment was composed of two sieves to separate three fractions: fine, medium, and large agglomerates. The shaping effects of the rotating screen drum were evaluated from the measurements of the physico-chemical characteristics (size distribution, water content, compactness, and circularity) on wet soft agglomerates. To describe the screening efficiency parameters of a rotary screen drum, a specific method was developed by using a matrix analysis of the different measured weights of the collected products. The impacts of rotating screen drum parameters (angle of inclination, rotating speed, and product flow rate) on the sieving efficiency and on the shaping effects were investigated. The present results demonstrate high apparent screening efficiency of the rotating screen drum when used with wet agglomerates of durum wheat, ranging between 89 and 96% depending on the process conditions Finally, using dimensional analysis, two correlations were proposed on the circularity and the apparent screening efficiency whatever the operating conditions used (drum speed, angle of inclination and feed rate)

show abstract

“…The trommel body was a hexagonal column with a side length of 135 mm. Chen et al [28] tested this type of screen system and found it to have a screening efficiency of more than 88% for particles of sizes below 2 mm. The screening efficiency could even reach 99.5% with a mass median aerodynamic diameter of dust particulates of 22.12 lm.…”

Section: Materials and Apparatusmentioning

confidence: 98%

“…11 shows the relationship between the collection weight and the collection efficiency for different rotational speeds of the trommel body of 23, 43 and 63 rpm but using a fixed filtration superficial velocity of 18.01 m/min and mass flow rates of 0.36 kg/min. Chen et al [28] found that the screening efficiency of the screen system tended to increase with the corresponding rotational speed of the trommel body. From the results in Fig.…”

Section: Effects Of the Collection Efficiency In A Moving Granular Bementioning

confidence: 98%