Modelling selected parameters of granular elements in the mixing process

• Autorzy: Matuszek D.
• Języki publikacji: EN

Abstrakty

EN

This paper presents the effects of mixing non-homogeneous bicomponent granular structures by the flow method with the use of an inverted cone insert as a supporting element. The analysis of homogeneity of mixtures after 10 consecutive flows was carried out based on computer image analysis. Based on these tests, the use of a nonlinear regression for the mo-delling of two selected parameters of the process was proposed. Spatial dependence was described by the relation between the va-riance of the tracer distribution (dependent variable) and density ratio of the mixed components, and the diameter of the cone insert used (independent variables). The mathematical description was made with the use of a ‘nonlinear regression’ module. The results obtained in these tests proved that the use of supporting insert improves the degree of mixability of granular materials. The two-dimensional model in the form of a quadratic function may be a for-mula for describing the influence of selected parameters on the homogeneity of a granulate mixture before the beginning of the mixing process.

Słowa kluczowe

EN

modelling; granular mixture; funnel flow; granular structure; product quality; granular material

• Wydawca: -
• Czasopismo: International Agrophysics
• Rocznik: 2015
• Tom: 29
• Numer: 1
• Opis fizyczny: p.75-81,fig.,ref.

Twórcy

autor

Matuszek D.

• Department of Biosystems Engineering, Opole University of Technology, Mikolajczyka 5, 45-271 Opole, Poland

Bibliografia

• Aczel A.D., 2005. Statistics in management (in Polish). Wydawnictwo Naukowe PWN, Warsaw, Poland.
• Alexander A., Muzzio F., J., and Shinbrot T., 2003. Segregation patterns in V-blenders. Chem. Eng. Sci., 58(2), 487-496.
• Barnum R.A., Bengston E., and Clement S.A., 2004. Avoiding common solids handling pitfalls in food processes. Powder Handling Processing, 16, 120-124.
• Błasiński H., Pyć K.W., and Rzyski E., 2001. Machines and technological apparatus of the food industry (in Polish).
• Łódź University of Technology Publisher, Poland.
• Bonifazi G., Massacci P., and Serranti S., 2008. Microtomographic techniques applied to particulate solids based products characterization. Granular Matter, 10, 315-321.
• Boss J., 2004. Contemporary problems of mixing granular materials (in Polish). Inżynieria i Aparatura Chemiczna, 4, 31-34.
• Czachor H. and Lipiec J., 2004. Quantification of soil macroporosity with image analysis. Int. Agrophysics, 18, 217-223.
• Doucet J., Bertrand F., and Chaouki J., 2008. Experimental characterization of the chaotic dynamics of cohesionless particles: application to a V-blender. Granular Matter, 10, 133-138.
• Gancarz M., Konstankiewicz K., Pawlak K., and Zdunek A., 2006. Analysis of plant tissue images obtained by confocal tandem scanning reflected light microscope. Int. Agrophysics, 21, 49-53.
• Marashdeh Q., Warsito W., Fan L.-S., and Teixeira F., 2008. Dual imaging modality of granular flow based on ECT sensors. Granular Matter, 10, 75-80.
• Matuszek D. and Tukiendorf M., 2007a. Computer analysis of the image in the estimation of mixing the granular systems (funnel flow system) (in Polish). Inżynieria Rolnicza, 2(90), 183-188.
• Matuszek D. and Tukiendorf M., 2007b. Influence of seeds dimensions on the process of mixing in the flow agitator with applying additional elements (in Polish). Inżynieria Rolnicza, 8(96), 171-177.
• Obregón L., Realpe A., and Velázquez C., 2010. Mixing of granular materials, part II: effect of particle size under periodic shear. Powder Technol., 201, 193-200.
• Ottino J.M. and Khakhar D.V., 2000. Mixing and segregation of granular materials. Annual Review of Fluid Mechanics, 32, 55-91.
• Radl S., Kalvoda E., Glasser B.J., and Khinast J.G., 2010. Mixing characteristics of wet granular matter in a bladed mixer. Powder Technol., 200, 171-189.
• Roberts A.W., 2006. Bulk solids handling an historical overview and current developments. Bulk Solids Handling, 26, 392-414.
• Spencer A.J.M. and Hill J.M., 2001. Non-dilatant double-shearing theory applied to granular funnel-flow in hoppers. J. Eng. Mathematics, 4, 55-73.
• StatSoft, Inc., 2010. STATISTICA (data analysis software system) version 9.1. www.statsoft.com.
• Szwedziak K. and Sobkowicz J., 2006. Describing the pollutants in flour with the help of computer analysis of the image (in Polish). Postęp Techniki Przetwórstwa Spożywczego, 2, 24-25.
• Tukiendorf M., 2002. The use of roof shaped system inserts in mixing nonhomogenous mixtures (in Polish). Inżynieria Rolnicza, 4(37), 337-343.
• Yang S.C., 2006. Density effect on mixing and segregation processes in a vibrated binary granular mixture. Powder Technol., 164(2), 65-74.

Identyfikatory

DOI

10.1515/intag-2015-0002