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Critical Assessment of Novel Developments in HPGR Technology Using DEM.
Rodriguez, Victor A; Barrios, Gabriel K P; Campos, Túlio M; Tavares, Luís Marcelo.
Afiliação
  • Rodriguez VA; Department of Metallurgical and Materials Engineering, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-972, Brazil.
  • Barrios GKP; Department of Metallurgical and Materials Engineering, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-972, Brazil.
  • Campos TM; Department of Metallurgical and Materials Engineering, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-972, Brazil.
  • Tavares LM; Department of Metallurgical and Materials Engineering, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-972, Brazil.
Materials (Basel) ; 17(7)2024 Apr 04.
Article em En | MEDLINE | ID: mdl-38612178
ABSTRACT
Advances in high-pressure grinding roll (HGPR) technology since its first commercial application in the cement industry include new roll wear protection techniques and new confinement systems. The latter contribute to reductions in the edge effects in an attempt to reach a more homogenous product size along the rolls. Additional advances in this technology have been made in recent years, while modeling and simulation tools are also reaching maturity and can now be used to subject such novel developments to detailed scrutiny. This work applies a hybrid approach combining advanced simulations using the discrete element method, the particle replacement model and multibody dynamics to a phenomenological population balance model to critically assess two recent advances in HPGR technology spring-loaded cheek plates and the offset roller press. Force and torque controllers, included in the EDEM 2022.1 software, were used to describe the responses of the geometries in contact with the granular material processed. Simulations showed that while the former successfully reduced the lateral bypass of the material by as much as 65% when cheek plates became severely worn, the latter demonstrated lower throughput and higher potential wear but an ability to generate a finer product than the traditional design.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article