Discrete element model of particle transport and premixing action in modified screw conveyors
Authorized Users Only
2018
Authors
Pezo, Milada
Pezo, Lato

Jovanović, Aca P.
Terzić, Anja

Andrić, Ljubiša
Lončar, Biljana

Kojić, Predrag

Article (Published version)

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In this paper, five types of horizontal single-pitch screw conveyors with modified geometry, with three different lengths (400, 600 and 800 mm) were investigated for transport and auxiliary mixing action of two materials: natural zeolite and quartz aggregate (sand) with particle sizes 3, 4 and 5 mm. The geometry of the screw transporter is changed by welding three additional helices oriented in the same or the opposite direction from screw cutting edges, enabling the premixing of materials, during the transport. The proper mixing of the observed materials provides an adequate disposition of zeolite particles within the composite and prevents agglomeration and interference with cement hydration. Zeolite application as a binder in a building material is a possible solution to environmental pollution problems caused by cement production. The influences of screw length, particle diameter, the studied geometry variations of screw design, on the mixing performances of the screw conveyor-mixe...r during material transport were explored. All investigations were performed experimentally and numerically, by using Discrete Element Method (DEM). The experimental results and the results of the DEM investigation were used for the development of mathematical models for the prediction of mixing quality, which are presented in the form of second order polynomial and artificial neural network model.
Keywords:
Zeolite / Premixing / Modified screw conveyor / Mixing quality / DEM / Composite building materialsSource:
Powder Technology, 2018, 336, 255-264Publisher:
- Elsevier Science Bv, Amsterdam
Funding / projects:
- Osmotic dehydration of food - energy and ecological aspects of sustainable production (RS-31055)
- Development and application of multifunctional materials using domestic raw materials in upgraded processing lines (RS-45008)
- Directed synthesis, structure and properties of multifunctional materials (RS-172057)
DOI: 10.1016/j.powtec.2018.06.009
ISSN: 0032-5910
WoS: 000441491300025
Scopus: 2-s2.0-85048341133
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Institut za ispitivanje materijalaTY - JOUR AU - Pezo, Milada AU - Pezo, Lato AU - Jovanović, Aca P. AU - Terzić, Anja AU - Andrić, Ljubiša AU - Lončar, Biljana AU - Kojić, Predrag PY - 2018 UR - http://rims.institutims.rs/handle/123456789/353 AB - In this paper, five types of horizontal single-pitch screw conveyors with modified geometry, with three different lengths (400, 600 and 800 mm) were investigated for transport and auxiliary mixing action of two materials: natural zeolite and quartz aggregate (sand) with particle sizes 3, 4 and 5 mm. The geometry of the screw transporter is changed by welding three additional helices oriented in the same or the opposite direction from screw cutting edges, enabling the premixing of materials, during the transport. The proper mixing of the observed materials provides an adequate disposition of zeolite particles within the composite and prevents agglomeration and interference with cement hydration. Zeolite application as a binder in a building material is a possible solution to environmental pollution problems caused by cement production. The influences of screw length, particle diameter, the studied geometry variations of screw design, on the mixing performances of the screw conveyor-mixer during material transport were explored. All investigations were performed experimentally and numerically, by using Discrete Element Method (DEM). The experimental results and the results of the DEM investigation were used for the development of mathematical models for the prediction of mixing quality, which are presented in the form of second order polynomial and artificial neural network model. PB - Elsevier Science Bv, Amsterdam T2 - Powder Technology T1 - Discrete element model of particle transport and premixing action in modified screw conveyors EP - 264 SP - 255 VL - 336 DO - 10.1016/j.powtec.2018.06.009 ER -
@article{ author = "Pezo, Milada and Pezo, Lato and Jovanović, Aca P. and Terzić, Anja and Andrić, Ljubiša and Lončar, Biljana and Kojić, Predrag", year = "2018", abstract = "In this paper, five types of horizontal single-pitch screw conveyors with modified geometry, with three different lengths (400, 600 and 800 mm) were investigated for transport and auxiliary mixing action of two materials: natural zeolite and quartz aggregate (sand) with particle sizes 3, 4 and 5 mm. The geometry of the screw transporter is changed by welding three additional helices oriented in the same or the opposite direction from screw cutting edges, enabling the premixing of materials, during the transport. The proper mixing of the observed materials provides an adequate disposition of zeolite particles within the composite and prevents agglomeration and interference with cement hydration. Zeolite application as a binder in a building material is a possible solution to environmental pollution problems caused by cement production. The influences of screw length, particle diameter, the studied geometry variations of screw design, on the mixing performances of the screw conveyor-mixer during material transport were explored. All investigations were performed experimentally and numerically, by using Discrete Element Method (DEM). The experimental results and the results of the DEM investigation were used for the development of mathematical models for the prediction of mixing quality, which are presented in the form of second order polynomial and artificial neural network model.", publisher = "Elsevier Science Bv, Amsterdam", journal = "Powder Technology", title = "Discrete element model of particle transport and premixing action in modified screw conveyors", pages = "264-255", volume = "336", doi = "10.1016/j.powtec.2018.06.009" }
Pezo, M., Pezo, L., Jovanović, A. P., Terzić, A., Andrić, L., Lončar, B.,& Kojić, P.. (2018). Discrete element model of particle transport and premixing action in modified screw conveyors. in Powder Technology Elsevier Science Bv, Amsterdam., 336, 255-264. https://doi.org/10.1016/j.powtec.2018.06.009
Pezo M, Pezo L, Jovanović AP, Terzić A, Andrić L, Lončar B, Kojić P. Discrete element model of particle transport and premixing action in modified screw conveyors. in Powder Technology. 2018;336:255-264. doi:10.1016/j.powtec.2018.06.009 .
Pezo, Milada, Pezo, Lato, Jovanović, Aca P., Terzić, Anja, Andrić, Ljubiša, Lončar, Biljana, Kojić, Predrag, "Discrete element model of particle transport and premixing action in modified screw conveyors" in Powder Technology, 336 (2018):255-264, https://doi.org/10.1016/j.powtec.2018.06.009 . .