Dry beneficiation technology of coal with an air dense-medium fluidized bed

Z, Luo; Chen, Qingru

doi:10.1016/s0301-7516(01)00049-7

Cited by 107 publications

(6 citation statements)

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“…Besides, the separation performance of three Turkish lignite samples using table-type air separator was investigated, which indicated that the table-type air separator could be used for effective separation of Turkish lignite [60]. Air dense medium fluidized bed is another dry density-based separator [61][62][63]. The experimental setup of air dense medium fluidized bed is shown in Fig.…”

Section: Dry Methodsmentioning

confidence: 99%

Recent advances in beneficiation for low rank coals

2015

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Section: Dry Methodsmentioning

confidence: 99%

Recent advances in beneficiation for low rank coals

2015

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“…This gas-solid suspension has pseudo-fluid properties and acts as the separating medium. Coal particles are added to the separating medium and carry out the sink-float processes based on the Archimedes law [18]. Finally, the feed coal is separated into different products with varying ash content.…”

Section: Difficulties Of Fine Coal Dry Cleaningmentioning

confidence: 99%

Dry Cleaning of Fine Coal Based on Gas‐Solid Two‐Phase Flow: A Review

Yang

Zhao

2017

Chem Eng & Technol

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Dry cleaning of coal becomes increasingly significant to improve energy efficiency and reduce air pollutant emissions. Fine coal dry cleaning processes are mostly based on gas‐solid two‐phase flow and mainly classified into the following three categories. Modified air‐dense medium‐fluidized bed cleaning has high cleaning accuracy, but confronts the problems of product purification and medium recovery. Density‐segregation gas‐fluidized bed cleaning does not use artificial medium solids and is characterized by a simple process and stable performance. However, its cleaning accuracy is relatively low. Air table cleaning also uses no artificial medium and separates fine coal depending on the differences in density and coefficient of friction. Its cleaning accuracy is approximate to that of density‐segregation gas‐fluidized bed cleaning but has more influential factors.

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“…Analysis of one's get reveal out the most popular methods that are being contained in the description of the different processes in a filtering and fluidized beds of solid particulate materials. The most part of experimental results and computing simulation methods of description of dust separation in filtering and fluidized layers based on numerical CFD modeling methods, for example, [13][14][15]. There is presented results of the study the of collection efficiency of dust particles in medium filtering and fluidized bed cleaners and the application one's in the [13].…”

Section: Introductionmentioning

confidence: 99%

“…There was shown the results of research of wet dry separation technology in device with air dense medium fluidized bed in article [15]. It was described systems for the dry separation of fine coal consisting of a magnetically fluidized bed and enhances the separation efficiency by preventing remixing of the feedstock.…”

Section: Introductionmentioning

confidence: 99%

Modeling of cleaning of dust emission’ in fluidized bed building aspiration’ collector

2017

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Abstract. This article describes one of the modern way to reduce dust emissions of pollutions exhausting into the atmosphere at expanded clay aggregates and other similar building materials manufactures applying filtering fluidized granular particulate material bed' separator with low degree of dust leakage out from one. There is presented quasi-diffusion model featuring of process of cleaning of industrial emissions of dust in devices of tray type with the fluidized and weighted bed. There considered case of variable coefficient of longitudinal hashing intermixing within trough tray type separator in this article. It was made attempt to get meanings value of leakage' degree dust out from separator. It was obtain in an implicit form. It was obtained and announced some results of the carried-out analysis are intended to get high efficiency of dust removal set up installations to clean emissions of aspiration scheme of the air environmental protection in production of bulk dispersed materials building construction industry.

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Dry beneficiation technology of coal with an air dense-medium fluidized bed

Cited by 107 publications

References 0 publications

Recent advances in beneficiation for low rank coals

Recent advances in beneficiation for low rank coals

Dry Cleaning of Fine Coal Based on Gas‐Solid Two‐Phase Flow: A Review

Modeling of cleaning of dust emission’ in fluidized bed building aspiration’ collector

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