The influence of material and process parameters and construction parameters on the density of pellets from of waste plant materials

• Autorzy: Obidziński S. , Hejft R.

Warianty tytułu

PL

Wpływ parametrów materiałowo-procesowych i konstrukcyjnych na przebieg procesu granulowania odpadowych materiałów roślinnych

• Języki publikacji: EN

Abstrakty

EN

This paper presents the results of tests of the influence of material and process, and construction parameters on maximum densifying pressures and density of pellets obtained in the process of densification of a mixture of plant waste in the form of unshredded buckwheat hulls, and a mixture of buckwheat hulls and potato pulp. The tests of densification of buckwheat hulls were conducted on an SS-3 stand with an “open chamber – densification piston” working system, according to the Hartley experiment plan. On the basis of the conducted tests it was found out that buckwheat hulls are a material with a low susceptibility to densification. Shredding buckwheat hulls considerably increase their susceptibility to densification. An addition of potato pulp to buckwheat hulls reduces the densifying pressures necessary to obtain pellets of high quality of mixture of buckwheat hulls and potato pulp. As far as the obtained pellets density is concerned, an addition of 15% of potato pulp is the most beneficial quantity added to buckwheat hulls.

PL

W pracy przedstawiono wyniki badań procesu zagęszczania mieszaniny odpadów otrębów owsianych i wycierki ziemniaczanej. Badania wstępne zagęszczania otrębów owsianych przeprowadzono na stanowisku SS-3, z układem roboczym „otwarta komora zagęszczania-tłok zagęszczający”, używając komory otwartej o średnicy 8 mm i długości 47 mm, natomiast badania właściwe procesu zagęszczania przeprowadzono w układzie roboczym granulatora P-300 z układem „płaska matryca-rolki zagęszczające”. W badaniach określono energochłonność procesu granulowania oraz jakość uzyskanego granulatu (gęstość i wytrzymałość kinetyczną). Oznaczanie wytrzymałości kinetycznej granulatu otrzymanego w układzie roboczym granulatora wykonano zgodnie z Polskimi Normami metodą Holmena. Wyniki przeprowadzonych badań pozwoliły stwierdzić, że dodatek wycierki ziemniaczanej do otrębów owsianych spowodował zwiększenie podatności mieszanki na zagęszczanie i obniżenie zapotrzebowania granulatora na moc. Dodatek wycierki do ok. 20% pozwala na uzyskanie granulatu o wysokiej jakości stanowiącego pełnowartościowe paliwo stałe.

Słowa kluczowe

EN

pelletizing; potato pulp; buckwheat; hull; density

PL

granulowanie; wycierka ziemniaczana; łuska gryki; gęstość

• Wydawca: Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
• Czasopismo: Journal of Research and Applications in Agricultural Engineering
• Rocznik: 2014
• Tom: Vol. 59, nr 1
• Strony: 94--99
• Opis fizyczny: Bibliogr. 26 poz., rys., tab.

Twórcy

autor

Obidziński S.

• Białystok University of Technology, Faculty of Civil and Environmental Engineering, Department of Agricultural and Food Techniques, ul. Wiejska 45E, 15-351 Białystok, Poland

autor

Hejft R.

• Białystok University of Technology, Faculty of Civil and Environmental Engineering, Department of Agricultural and Food Techniques, ul. Wiejska 45E, 15-351 Białystok, Poland

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