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ORIGINAL PAPER
The influence of material and process parameters and construction parameters on the density of pellets from of waste plant materials
1
Białystok University of Technology, Faculty of Civil and Environmental Engineering, Department of Agricultural and Food Techniques, ul. Wiejska 45E, 15-351 Białystok, Poland
Journal of Research and Applications in Agricultural Engineering 2014;59(1):94-99
KEYWORDS
ABSTRACT
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.
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| eISSN: | 2719-423X |
| ISSN: | 1642-686X |
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