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Experimental Study of the Pressure Agglomeration Process of Coal and Plant-Based Waste

Sławomir OBIDZIŃSKI

Sławomir OBIDZIŃSKI

PhD; Faculty of Civil and Environmental Engineering, Bialystok University of TechnologyBialystok, Poland
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OBIDZIŃSKI, Sławomir
, 
Magdalena DOŁŻYŃSKA

Magdalena DOŁŻYŃSKA

MSc; Faculty of Civil and Environmental Engineering, Bialystok University of TechnologyBialystok, Poland
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DOŁŻYŃSKA, Magdalena
 e 
Krzysztof SOSNA

Krzysztof SOSNA

Eng.; Faculty of Mechanical Engineering, Bialystok University of TechnologyBialystok, Poland
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SOSNA, Krzysztof
  
04 apr 2019
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Pubblicato online: 04 apr 2019
Pagine: 135 - 140
Ricevuto: 03 gen 2018
Accettato: 19 apr 2018
DOI: https://doi.org/10.21307/acee-2018-031
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© 2018 Sławomir Obidziński et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1.

Scheme of the SS-3 test stand for testing the compaction process [18]: 1 – press, 2 – base, 3 – compaction chamber, 4 – thermostatic element, 4a – heating band, 5 – chamber bottom, 6 – compacting piston, 7 – stub pipes, 8 – displacement sensor, 9 – multi-channel recorder, 10 – temperature controller, 11 – computer
Scheme of the SS-3 test stand for testing the compaction process [18]: 1 – press, 2 – base, 3 – compaction chamber, 4 – thermostatic element, 4a – heating band, 5 – chamber bottom, 6 – compacting piston, 7 – stub pipes, 8 – displacement sensor, 9 – multi-channel recorder, 10 – temperature controller, 11 – computer

Figure 2.

The influence of material and process factors on the maximum compaction pressures obtained during the compaction of straw with hard coal
The influence of material and process factors on the maximum compaction pressures obtained during the compaction of straw with hard coal

Figure 3.

The influence of material-process factors on the work of agglomeration obtained during the compaction of straw with hard coal
The influence of material-process factors on the work of agglomeration obtained during the compaction of straw with hard coal

Figure 4.

The influence of material-process factors on the density of granules obtained during the compaction of straw with hard coal
The influence of material-process factors on the density of granules obtained during the compaction of straw with hard coal

Results of rye straw compaction process with 20% hard coal addition

Independent variables Dependent variables
x1=tp [°C] x2=w [%] Average force under the piston [N] Maxiumum agglomeration pressures [MPa] Avrerage agglomeration pressures [MPa] Work of agglomeration [J] Pellet density [kg·m-3]
1 30 15 - - - - -
2 30 20 1036.54 36.39 16.45 38.35 1139.82
3 30 25 430.04 20.65 6.83 15.91 871.37
4 50 15 846.60 29.93 13.44 31.32 970.58
5 50 20 796.01 31.04 12.64 29.45 1066.91
6 50 25 362.93 16.25 5.76 13.43 737.95
7 70 15 428.58 16.16 5.48 16.29 908.03
8 70 20 925,05 26.30 14.68 32.23 1063.69
9 70 25 417.93 14.98 6.63 15.46 715.48
10 90 15 41.77 1.82 0.66 15.45 578.48
11 90 20 470.29 14.53 7.46 17.40 1004.47
12 90 25 541.39 14.78 8.46 20.03 756.82
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