Disintegration process modeling for a jaw crusher with complex jaws swing

Белоглазов, И. И.; Yusupov, G. A.; Stepanyan, A. S.; Feoktistov, A. Yu.

doi:10.17580/or.2018.02.01

Cited by 5 publications

(6 citation statements)

References 6 publications

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“…The developed approach scheme is shown in Figure 2. For the investigated bulk material Young's modulus, Poisson's ratio, and particle size distribution are determined using well-known techniques [31][32][33][34][35]. A certain amount of material (portion) is poured into the developed test rig, and then its rheological properties are studied.…”

Section: Methodsmentioning

confidence: 99%

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Universal Approach for DEM Parameters Calibration of Bulk Materials

et al. 2021

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DEM parameters calibration is the most important step in preparing a DEM model. At the same time, the lack of a universal approach to DEM parameters calibration complicates this process. The paper presents the author’s approach to creating a universal calibration approach based on the physical meaning of the friction coefficients and conducting symmetrical experiments at full scale and in a simulation, as well as the implementation of the approach in the form of a physical test rig. Several experiments were carried out to determine the DEM parameters of six material–boundary pairs. The resulting parameters were adjusted using a refinement experiment. The results confirmed the adequacy of the developed approach, as well as its applicability in various conditions. The limitations of both the approach itself and its specific implementation in the form of a test rig were identified.

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Section: Methodsmentioning

confidence: 99%

“…where β re f l , β rupt angles of reflection and rupture of bulk material flow, V re f l , V rupt the speed of reflection and rupture at the point of impact, k-coefficient that depends on the specifics of the experiment and is taken into account at the stage of refinement of the initially obtained values (by default k = 1) [34].…”

Section: Methodsmentioning

confidence: 99%

Universal Approach for DEM Parameters Calibration of Bulk Materials

et al. 2021

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“…This is due to the fact that in most crushing machines, dynamic loads also arise next to static ones. In [10], the modeling of the process of crushing the material of a jaw crusher is considered. The software Rocky (USA) is used for modeling, designed to simulate technological processes of bulk materials.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Determiantion of energy characteristics of material destruction in the crushing chamber of the vibration crusher

Nazarenko

Mishchuk²,

Mishchuk³

et al. 2021

EEJET

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The crushing equipment is characterized by a significant energy-consuming system during the crushing workflow. The current trend in the development of such processes puts forward requirements for the development of new or improvement of existing energy-saving equipment. The essence of the solution to the problem in this work is determined by using resonant modes, which are inherently the most effective. The practical implementation of the resonance mode has been achieved taking into account the conditions for the interaction of the resonant vibration crusher with the material at the stages of its destruction. The degree of the stress-strain state of the material is taken into account, which was a prerequisite for identifying the potential for the development of a vibration load. Composed equations of motion based on a substantiated discrete-continuous model of a vibration crusher and processing material. An approach is applied to determine the stepwise destruction of the material with the determination of the required degree of energy. This methodological approach made it possible to reveal the nature of the process of material destruction, where energy costs at the stages of crack formation, their development and final destruction are taken into account. It was revealed that the greatest energy consumption during the operation of crushers goes into the kinetic energy of the crushing plates and the potential energy of deformation of the springs. The proposed model is common for any design of a vibration machine and its operating modes. The stable resonance mode has made it possible to significantly reduce the energy consumption for the course of the technological process of material grinding. The results obtained are used to improve the calculation methods for vibratory jaw and cone crushers that implement the corresponding energy-saving stable zones of the working process.

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“…Finally, the size of the output product and, accordingly, the mill efficiency change. A digital twin of semiautogenous mill includes a few stages and is implementable using dedicated programs [24][25][26][27][28]. Later on, the obtained results can be sent to the environment of dynamic modeling of process flows.…”

Section: Digital Twins For Mining and Processing Plantsmentioning

confidence: 99%

The concept of digital twins for tech operator training simulator design for mining and processing industry

Белоглазов¹,

Petrov²,

Bazhin³

2020

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According to the top-priority trends and challenges in the mineral sector, and as per the mining science strategy, it is highly critical to arrange enhanced control, prediction and safety of production objects and their functioning for the preservation of automation sustainability. Improved control of databases, regulatory bonds, management, logistics and principles of sustainable development in mining makes it possible to reduce technological deviations and accidents at large mining and processing plants. Most procedural violations and accidents in surface and underground mines occur because of the unskilled actions of process flow operators. Damage in this case can be considerable, especially as compared with the expenses connected with qualitative training and persistent development of personnel engaged with supervisory control and data acquisition for the efficient operation of SCADA-systems within the automation framework of mining and processing plants. Definition of digital systems and their interrelation with multilevel automated control can be incorrect. The review of new principles can awaken interest in the conceptual assessment of digitalization processes using such notions as: numerical models, simulator, and artificial intelligence. Often applied formulations and principles of a digital model are substituted without justification of functional connections. On the other hand, a digital system today can be assumed as robotic lines and other numerical models and smart technologies, for instance, machining stations with numerical program control. It is necessary to define the practical significance of conceptual modifications and digital transformation regarding objects of the mineral sector, using Big Data; to understand how a digital twin can influence a changeable process situation; to provide prompt prediction; to eliminate an accident; and to preserve the physical balance in the whole production system. Such intelligent and flexible productions particularly need computerbased simulators and digital twins based on technologies of Industry 4.0–extended and virtual reality on the basis of digital twins. Digital twins allow maximal simulation of real-life activity of process flow operators. The skills acquired by personnel after such simulation training enable operators to master the optimized procedure for functioning in emergency situations in mineral mining and processing. This paper exemplifies the remote training and control of process flows, which is of concern in the current international situation.

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Disintegration process modeling for a jaw crusher with complex jaws swing

Cited by 5 publications

References 6 publications

Universal Approach for DEM Parameters Calibration of Bulk Materials

Universal Approach for DEM Parameters Calibration of Bulk Materials

Determiantion of energy characteristics of material destruction in the crushing chamber of the vibration crusher

The concept of digital twins for tech operator training simulator design for mining and processing industry

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