Belt Feeder for Biomass Mixing

Authors

  • Aivars Kaķītis Latvia University of Agriculture
  • Imants Nulle Latvia University of Agriculture
  • Dainis Ancāns Latvia University of Agriculture

DOI:

https://doi.org/10.17770/etr2013vol1.810

Keywords:

mixer, feeder, Reed canary grass

Abstract

Level of agricultural productivity has been increased and also increased land area not utilized for food production. This area can be used for growing energy crops, including grasses. In addition, there are non-agricultural lands in Latvia suitable only for growing energy crops like Reed canary grass etc. Reed canary grass growing for energy needs could be an additional source of income for Latvian farmers, whom have harvesting technique for hay, for example dairy farming. It could be also a local heat energy source if wood in farm area is not available. Pelletizing or briquetting of dried herbaceous biomass has several advantages such as increasing energy density, improving storability and reducing handling and transport costs, but remains, of the fuel quality negatively affecting things, such as high ash and chlorine content (wheat straw 0.1 – 2.3%). Therefore, to reduce ash content and corrosion of heat transfer surfaces suggestible to make blends with others biomass where those parameters are lower. Briquettes of herbaceous biomass blends with peat are denser, durabler and take less energy for briquetting and pelleting. A new mixing method in this article is described. Experiments of biomass feeding in mixing process with belt feeder were done. The throughput of the belt feeder is increasing nearly linearly at feeder belt velocity from 0.18 to 0.89 m·s-1. The specific throughput of belt feeder was evaluated for Reed canary grass. Noticeable influence of the belt velocity on the specific throughput of belt feeder was not found.

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Author Biographies

  • Aivars Kaķītis, Latvia University of Agriculture
    Faculty of Engineering, Institute of Mechanics
  • Imants Nulle, Latvia University of Agriculture
    Faculty of Engineering, Institute of Mechanics
  • Dainis Ancāns, Latvia University of Agriculture
    Faculty of Engineering, Institute of Mechanics

References

B. Kavalov, D. Peteves. Bioheat applications in the European Union: An analysis and perspective for 2010. Luxembourg: Office for Official Publications of the European Communities, 2004. 122 p. ISBN 92-894-8730-5.

E. Alakangas, D. Agar, M. Leppänen. Report of the seminar presentations and study tour [online]. Biomass Logistics and Combustion [viewed 2013-01-15]. Accessible: http://www.opetchp.net/download/wp3/summerschoolreport. pdf

A. Kaķītis, I. Nulle. Electrostatic Biomass Mixing. In: Engineering for rural development.: Proceedings of 8th International Scientific conference Latvia University of Agriculture, Faculty of Engineering. Jelgava: LLU, 2009, p. 247 – 252.

R. Weinekötter, H. Gericke. Mixing of solids. Dordrecht: Kluwer Academic Publisher. 2000. 151 pp.

A.W. Roberts. Design and application of feeders for the controlled loading of bulk solids onto conveyor belts. [viewed 2013-02-9]. Accessible: http://www.saimh.co.za/beltcon/ Beltkon2paper27.htm

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Published

2015-08-06

How to Cite

[1]
A. Kaķītis, I. Nulle, and D. Ancāns, “Belt Feeder for Biomass Mixing”, ETR, vol. 1, pp. 122–126, Aug. 2015, doi: 10.17770/etr2013vol1.810.