Mathematical Model of the Deaeration of Finely Dispersed Solid Media in a Spherical Matrix of a Roller-Type Apparatus

The additional operation of deaeration (compaction) of powders affects the quality of many products of chemical industries, the conditions for their delivery. Otherwise, energy consumption increases significantly. The aim of this work is the modeling of the deaeration of solid finely dispersed media...

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Autores principales:	Anna Kapranova, Mikhail Tarshis, Natalya Badaeva, Irina Sheronina
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	model deaeration (densification) finely dispersed medium roller porosity General Works A
Acceso en línea:	https://doaj.org/article/42e3d4fa50f342daacd43acf2658c5da
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spelling	oai:doaj.org-article:42e3d4fa50f342daacd43acf2658c5da2021-11-30T18:27:04ZMathematical Model of the Deaeration of Finely Dispersed Solid Media in a Spherical Matrix of a Roller-Type Apparatus2296-598X10.3389/fenrg.2021.769940https://doaj.org/article/42e3d4fa50f342daacd43acf2658c5da2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fenrg.2021.769940/fullhttps://doaj.org/toc/2296-598XThe additional operation of deaeration (compaction) of powders affects the quality of many products of chemical industries, the conditions for their delivery. Otherwise, energy consumption increases significantly. The aim of this work is the modeling of the deaeration of solid finely dispersed media in a gap with perforated hemispherical shapes on the surfaces of the shaft and conveyor belt within the framework of the mechanics of heterogeneous systems. A plane-deformation model is described, neglecting the forces of interphase interaction and taking into account the compressibility of a solid-particle-gas mixture without elastoplastic deformations. The model assumes consideration of the movement of (1) the components of the solid skeleton together with the carrying phase as a whole; (2) gas in an isothermal state through the pores of a finely dispersed material. This work is devoted to the study of part (a), i.e., behavior of the solid particle-gas system as a whole. The efficiency of the seal-deaerator is estimated using the obtained analytical dependencies for the main strength and speed indicators. The change in the degree of compaction of a spherical granule made of kaolin with given strength characteristics is investigated. It is shown that for the initial time interval up to 3.7⨯10−2 s, the growth of the porosity value relative to the horizontal coordinate along the conveyor belt is exponential and increases by a factor of 1.1. After eight such time intervals, the porosity values stabilize along the indicated coordinate with an increase of more than 1.4 times from the initial value.Anna KapranovaMikhail TarshisNatalya BadaevaIrina SheroninaFrontiers Media S.A.articlemodeldeaeration (densification)finely dispersed mediumrollerporosityGeneral WorksAENFrontiers in Energy Research, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	model deaeration (densification) finely dispersed medium roller porosity General Works A
spellingShingle	model deaeration (densification) finely dispersed medium roller porosity General Works A Anna Kapranova Mikhail Tarshis Natalya Badaeva Irina Sheronina Mathematical Model of the Deaeration of Finely Dispersed Solid Media in a Spherical Matrix of a Roller-Type Apparatus
description	The additional operation of deaeration (compaction) of powders affects the quality of many products of chemical industries, the conditions for their delivery. Otherwise, energy consumption increases significantly. The aim of this work is the modeling of the deaeration of solid finely dispersed media in a gap with perforated hemispherical shapes on the surfaces of the shaft and conveyor belt within the framework of the mechanics of heterogeneous systems. A plane-deformation model is described, neglecting the forces of interphase interaction and taking into account the compressibility of a solid-particle-gas mixture without elastoplastic deformations. The model assumes consideration of the movement of (1) the components of the solid skeleton together with the carrying phase as a whole; (2) gas in an isothermal state through the pores of a finely dispersed material. This work is devoted to the study of part (a), i.e., behavior of the solid particle-gas system as a whole. The efficiency of the seal-deaerator is estimated using the obtained analytical dependencies for the main strength and speed indicators. The change in the degree of compaction of a spherical granule made of kaolin with given strength characteristics is investigated. It is shown that for the initial time interval up to 3.7⨯10−2 s, the growth of the porosity value relative to the horizontal coordinate along the conveyor belt is exponential and increases by a factor of 1.1. After eight such time intervals, the porosity values stabilize along the indicated coordinate with an increase of more than 1.4 times from the initial value.
format	article
author	Anna Kapranova Mikhail Tarshis Natalya Badaeva Irina Sheronina
author_facet	Anna Kapranova Mikhail Tarshis Natalya Badaeva Irina Sheronina
author_sort	Anna Kapranova
title	Mathematical Model of the Deaeration of Finely Dispersed Solid Media in a Spherical Matrix of a Roller-Type Apparatus
title_short	Mathematical Model of the Deaeration of Finely Dispersed Solid Media in a Spherical Matrix of a Roller-Type Apparatus
title_full	Mathematical Model of the Deaeration of Finely Dispersed Solid Media in a Spherical Matrix of a Roller-Type Apparatus
title_fullStr	Mathematical Model of the Deaeration of Finely Dispersed Solid Media in a Spherical Matrix of a Roller-Type Apparatus
title_full_unstemmed	Mathematical Model of the Deaeration of Finely Dispersed Solid Media in a Spherical Matrix of a Roller-Type Apparatus
title_sort	mathematical model of the deaeration of finely dispersed solid media in a spherical matrix of a roller-type apparatus
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/42e3d4fa50f342daacd43acf2658c5da
work_keys_str_mv	AT annakapranova mathematicalmodelofthedeaerationoffinelydispersedsolidmediainasphericalmatrixofarollertypeapparatus AT mikhailtarshis mathematicalmodelofthedeaerationoffinelydispersedsolidmediainasphericalmatrixofarollertypeapparatus AT natalyabadaeva mathematicalmodelofthedeaerationoffinelydispersedsolidmediainasphericalmatrixofarollertypeapparatus AT irinasheronina mathematicalmodelofthedeaerationoffinelydispersedsolidmediainasphericalmatrixofarollertypeapparatus
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Mathematical Model of the Deaeration of Finely Dispersed Solid Media in a Spherical Matrix of a Roller-Type Apparatus

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