Address: 17 Naberezhnaya Severnoy Dviny, Arkhangelsk 163002 Russian Federation. Northern (Arctic) Federal University named after M.V.Lomonosov. Office 1425

Phone / Fax: (818-2) 21-61-18
E-mail: forest@narfu.ru
http://lesnoizhurnal.ru/en/

RussianEnglish



Archive

Influence of the Relative Length of the Matrix Drawplate on the Compacting Pressure of Thermally-Modified Birch Bark in the Roller Press-Granulators

Версия для печати
Creative Commons License
These works are licensed under a Creative Commons Attribution 4.0 International License.

O.D. Myuller, V.I. Melekhov, N.G. Ponomareva, T.V. Tyurikova

Complete text of the article:

Download article (pdf, 0.7MB )

UDС

UDС 674.812

DOI:

10.17238/issn0536-1036.2017.5.110

Abstract

The process of obtaining of granulated biofuel from thermally-modified woodpulp by roller press granulators is a promising method for utilization of birch bark refuse wood. Density of bark pellets is an important indicator, of their high quality. The production of qualitative pellets from thermally-modified birch bark depends on the compacting pressure, which is directly associated with the relative length of the matrix drawplate and feedstock physical and mechanical properties, primarily with the friction and adhesion coefficients of the pressed wood pellet with the cylindrical surface of the matrix drawplate in the roller press granulators. At present, there are practically no data on the adhesion and friction coefficients for thermally-modified tree bark, which does not allow us to determine the pressure developed by the pressing rolls during the wood pellets pressing. Based on the developed mathe-matical model for calculating the compacting pressure in the cylindrical matrix drawplate, we combined the friction and adhesion coefficients into a factor, which made it possible to create a stand and develop a technique for its experimental determination. The researches on obtaining granules from thermally-modified birch bark demonstrate that the generalizing coefficient a is a function of initial moisture content of thermally-modified raw material and compacting pressure. The statistical processing of the experimental results made it possible to obtain a regression equation for the determining coefficient a.

Authors

O.D. Myuller, Doctor of Engineering Sciences, Professor
V.I. Melekhov, Doctor of Engineering Sciences, Professor
N.G. Ponomareva, Postgraduate Student
T.V. Tyurikova, Candidate of Engineering Sciences, Associate Professor

Affiliation

Northern (Arctic) Federal University named after M.V. Lomonosov, Naberezhnaya Severnoy Dviny, 17, Arkhangelsk, 163002, Russian Federation; е-mail: ockar@mail.ru, n.ponomareva@narfu.ru

Keywords

granulation, thermally-modified, birch bark, fine mass, press-granulator, pellet, compacting pressure

For citation

Myuller O.D., Melekhov V.I., Ponomareva N.G., Tyurikova T.V. Influence of the Relative Length of the Matrix Drawplate on the Compacting Pressure of Thermally-Modified Birch Bark in the Roller Press-Granulators. Lesnoy zhurnal [Forestry journal], 2017, no. 5, pp. 110–118. DOI: 10.17238/issn0536-1036.2017.5.110

References

1. Bulatov I.A. Razrabotka protsessa pressovogo granulirovaniya melkodispersnykh sred na primere mineral'nykh poroshkov i drevesnykh otkhodov: avtoref. dis. … kand. tekhn. nauk [Development of a Granulation Technology for Small-Grain Media for the Example of Mineral Powder and Wood Waste: Cand. Eng. Sci. Diss. Abs.]. Moscow, 2012. 19 p.
2. Bogdanovich N.I., Kuznetsova L.N., Tret'yakov S.I., Zhabin V.I. Planirovanie eksperimenta v primerakh i raschetakh: ucheb. posobie [Design of Experiments in Examples and Calculations]. Arkhangelsk, SAFU Publ., 2010. 126 p. (In Russ.)
3. Popov A.N., Lyubov V.K., Myuller O.D., Popova E.I. Matematicheskaya model' i protsess proizvodstva drevesnogo granulirovannogo topliva [Mathematical Model and Process for Production of Granulated Fuel Wood]. Khimiya tverdogo topliva [Solid Fuel Chemistry], 2016, no. 2, pp. 38-45.
4. Hodolic J., Vukelic Dj., Agarski B., Hudjik C. Briquetting of Biomass and Environmental Engineering. Proc. Quality Festival 2007-2. Conference about Quality of Life. Kragujevac, 2007, pp. 8-11, ISBN 85-86663-09-5.
5. Holm J.K., Henriksen U.B., Hustad J.E., S`rensen L.S. Toward an Understanding of Controlling Parameters in Softwood and Hardwood Pellets Production. Energy and Fuels, 2006, no. 20(6), pp. 2686–2694.
6. Krizan P., Matus M., Kers J., Vukelic Dj. Change of Pressing Chamber Conicalness at Briquetting Process in Briquetting Machine Pressing Chamber. Acta Polytechnica, 2012, vol. 52, no. 3, pp. 60–65.
7. Krizan P., `oos L., Matus M., Svatek M., Vukelic Dj. Evaluation of Measured Data from Research of Parameters Impact on Final Briquettes Density. Aplimat – Journal of Applied Mathematics, 2010, vol. 3, no. 3, pp. 69–76.
8. Krizan P., Vukelic Dj. Shape of Pressing Chamber for Wood Biomass Compact-ing. International Journal for Quality Research, 2008, vol. 2, no. 3, pp. 193–197.
9. Matus M., Krizan P. Modularity of Pressing Tools for Screw Press Producing Solid Biofuels. Acta Polytechnica, 2012, vol. 52, no. 3, pp. 71–76.
10. Myuller O.D., Melekhov V.I., Malygin V.I. Elastoplastic Deformation of Fine-Grain Media. Russian Engineering Research, 2015, vol. 35, iss. 12, pp. 911–918.
Received on March 25, 2017

Influence of the Relative Length of the Matrix Drawplate on the Compacting Pressure of Thermally-Modified Birch Bark in the Roller Press-Granulators

 

Make a Submission


ADP_cert_2024.png

Lesnoy Zhurnal (Russian Forestry Journal) was awarded the "Seal of Recognition for Active Data Provider of the Year 2024"

INDEXED IN: 

scopus.jpg

DOAJ_logo-colour.png

logotype.png

Логотип.png