TY  - JOUR
AU  - Kozić, Mirko
AU  - Ristić, Slavica
AU  - Katavić, Boris
AU  - Jegdić, Bore
AU  - Prvulović, Mirjana
AU  - Prokolab, Milan
AU  - Linić, Suzana
PY  - 2017
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2646
AB  - Numerical simulation of 3D multiphase flow is performed to determine the velocity field in the fan mill. The mixture model of the Euler-Euler approach is used. Recirculating gas is a primary phase that carries granular phases including the coal powder and sand. The latter causes heavy wear of mill impact plates. The optimal form of hardfacing geometry and technology has an impact both on velocity magnitude and direction of flow in such a way as to reduce plate wear. This paper presents results of surface modification (based on numerical simulation), implemented on impact plates of the fan mill in the Kostolac B power plant in Serbia. Fishbone hardfacing is made in order to increase the lifetime of impact plates and extend the period between overhauls of fan mills. The experimental tests of fishbone surfacing plates, in exploitation conditions, show that the applied modification, hardfacing technologies and coating materials, give expected results. The application of this hardfacing in the form of a fishbone is simpler, faster and more economical compared to complete overlaying and honeycomb impact plate surfacing. The relative weight loss of base plate after an 1440-hour period of exploitation is 8%, while the weight losses for the hard-faced plate is below 7%.
PB  - Institut za ispitivanje materijala, Beograd
T2  - Structural Integrity and Life-Integritet I Vek Konstrukcija
T1  - Wear resistance improvement of thermal plant fan mill impact plates based on numerical flow simulation
EP  - 228
IS  - 3
SP  - 221
VL  - 17
UR  - https://hdl.handle.net/21.15107/rcub_machinery_2646
ER  - 

@article{
author = "Kozić, Mirko and Ristić, Slavica and Katavić, Boris and Jegdić, Bore and Prvulović, Mirjana and Prokolab, Milan and Linić, Suzana",
year = "2017",
abstract = "Numerical simulation of 3D multiphase flow is performed to determine the velocity field in the fan mill. The mixture model of the Euler-Euler approach is used. Recirculating gas is a primary phase that carries granular phases including the coal powder and sand. The latter causes heavy wear of mill impact plates. The optimal form of hardfacing geometry and technology has an impact both on velocity magnitude and direction of flow in such a way as to reduce plate wear. This paper presents results of surface modification (based on numerical simulation), implemented on impact plates of the fan mill in the Kostolac B power plant in Serbia. Fishbone hardfacing is made in order to increase the lifetime of impact plates and extend the period between overhauls of fan mills. The experimental tests of fishbone surfacing plates, in exploitation conditions, show that the applied modification, hardfacing technologies and coating materials, give expected results. The application of this hardfacing in the form of a fishbone is simpler, faster and more economical compared to complete overlaying and honeycomb impact plate surfacing. The relative weight loss of base plate after an 1440-hour period of exploitation is 8%, while the weight losses for the hard-faced plate is below 7%.",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Structural Integrity and Life-Integritet I Vek Konstrukcija",
title = "Wear resistance improvement of thermal plant fan mill impact plates based on numerical flow simulation",
pages = "228-221",
number = "3",
volume = "17",
url = "https://hdl.handle.net/21.15107/rcub_machinery_2646"
}

Kozić, M., Ristić, S., Katavić, B., Jegdić, B., Prvulović, M., Prokolab, M.,& Linić, S.. (2017). Wear resistance improvement of thermal plant fan mill impact plates based on numerical flow simulation. in Structural Integrity and Life-Integritet I Vek Konstrukcija
Institut za ispitivanje materijala, Beograd., 17(3), 221-228.
https://hdl.handle.net/21.15107/rcub_machinery_2646

Kozić M, Ristić S, Katavić B, Jegdić B, Prvulović M, Prokolab M, Linić S. Wear resistance improvement of thermal plant fan mill impact plates based on numerical flow simulation. in Structural Integrity and Life-Integritet I Vek Konstrukcija. 2017;17(3):221-228.
https://hdl.handle.net/21.15107/rcub_machinery_2646 .

Kozić, Mirko, Ristić, Slavica, Katavić, Boris, Jegdić, Bore, Prvulović, Mirjana, Prokolab, Milan, Linić, Suzana, "Wear resistance improvement of thermal plant fan mill impact plates based on numerical flow simulation" in Structural Integrity and Life-Integritet I Vek Konstrukcija, 17, no. 3 (2017):221-228,
https://hdl.handle.net/21.15107/rcub_machinery_2646 .