Ways of evaluation of granular blends in bins
Marek Tukiendorf
Zakład Urządzeń dla Przemysłu Spożywczego i Ochrony Środowiska, Politechnika Opolska, ul. Mikołajczyka 5, 45-233 OpoleAbstract
The aim of the research was to propose new ways of quality evaluation of granular blends. The object of observation was the vetch-mustard material pair, which was mixed using the supporting inserts (RSI) and achieved different mixing state. Differences between theses states resulted from differences in ways of packing of vetch seeds in bins. A material arrangement in three mixing states was researched using the computer picture analysis and an evaluation of variances of seeds’ distributions was performed for chosen bin profiles. The results were compared and not previously used indicators for longitudinal and transverse mixing shapes were proposed in the analysis. A non-appropriateness of the Rose’s and other mixing measures as well was indicated in the paper.
Keywords:
granular arrangements, feeds and blends, states and degrees of mixingReferences
Boss J., 1987. Mieszanie materiałów ziarnistych, PWN Warszawa-Wrocław.
Boss J., Krótkiewicz M., Tukiendorf M., 2002. An application of picture analysis as a method of evaluation of granular blend’s quality, Polish J. Food Nutr. Sci. (w druku).
Boss J, Tukiendorf M., 1997. Mixing of granular materials using the method of funnel-flow, Powder Handling & Processing, 9, 4, 341–343.
Danckwerts P. V., 1952. The definition and measurement of some characteristic of mixtures, Appl. Sci. Res. Hague A3, 279–296. DOI: https://doi.org/10.1007/BF03184936
Fan L. T., Chen S. J., Watson C. A., 1970. Solids mixing, Ind. Eng. Chem. 62, 7, 53–69. DOI: https://doi.org/10.1021/ie50727a009
Grochowicz J., 1996. Technologia produkcji mieszanek paszowych. Wyd. II, PWRiL, Warszawa.
Lacey P. M. C., 1943. The mixing of solid particles, Trans. Inst. Chem. Eng. 21, 53–59.
Rose H. E., 1959. A suggested equation relating to the mixing of powders and its application to the study of the performance of certain types of machine, Trans. In. Chem. Eng. 37, 47–64.
Schlick H, Gehbauer F., Auther A., Galliant J., 1996. Relationship between flow properties and the process of loading in silo with central cones and plough feeder discharge, Bulk Solids Handling 16, 83–89.
Roberts A. W., 1998. Particle technology-reflections and horizons: An engineering perspective, Trans. In. Chem. Eng. 76, A. DOI: https://doi.org/10.1205/026387698525522
Tukiendorf M., 2002a. Zagadnienie rozkładu koncentracji składników niejednorodnej mieszaniny ziarnistej podczas mieszania w przesypie. Inżynieria i Aparatura Chemiczna, 4, IZACAX 41 (33), 139–140.
Tukiendorf M., 2002b. Ocena jakości mieszaniny ziarnistej w przekrojach poziomych silosów podczas mieszania systemem funnel-flow. Post. Inż. Roln. (w druku).
Williams J. C., 1976. The segregation of particulate materials. A Review Powder Technol. 15, 245–251. DOI: https://doi.org/10.1016/0032-5910(76)80053-8
Zakład Urządzeń dla Przemysłu Spożywczego i Ochrony Środowiska, Politechnika Opolska, ul. Mikołajczyka 5, 45-233 Opole
License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Articles are made available under the CC BY-NC-ND 4.0 (recognition by authorship, non-commercial use, no dependent works).
The author signs a statement on the originality of the work and the contribution of individuals.
Submission of the paper implies that it has not been published previously, that it is not under consideration for publication elsewhere.
