Energy calculation model of an outgoing conveyor with application of a transfer
chute with the damping plate

Molnár, Vieroslav; Fedorko, Gabriel; Husáková, Nikoleta; Král, Jan; Ferdynus, Mirosław

doi:10.5194/ms-7-167-2016

Cited by 10 publications

(4 citation statements)

References 16 publications

(17 reference statements)

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“…can be obtained from DEM simulations. These parameters obtained from DEM simulations can advantageously be used and applied to other computational models of transport and storage applications such as, for example, a conveyor belt [20,21]. There exists research on the issue of storage processes as published, for example, in the literature [14,15].…”

Section: Verification Using Dem Simulation Methodsmentioning

confidence: 99%

Monitoring bulk material pressure on bottom of storage using DEM

et al. 2019

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This article focuses on the experimental verification of a mathematical derivation of Janssen’s theory, which describes the distribution of pressures within the bulk material and pressure distribution on the walls of storage facilities. The experimental verification is performed in two ways. The first is the real measurement of the load transfer in a bulk material cylinder and the second is similar to the detection of the load transfer through simulations using the DEM method. The aim is to compare the results of the theoretical calculation according to Janssen’s theory with the real measurement and a simulation of exactly the same model situation. At the beginning of any design or optimisation of existing transport or storage facilities, the most important is the analysis of the bulk material in the form of measurements of mechanical-physical properties. The analysis methods used are also described here. The pressure at the bottom of a storage container between the methods used showed negligible differences. From this finding, it can be concluded that the DEM method is a very suitable means for verifying the design of transport and storage facilities. The simulations provide important information and insights that can also be used to optimise existing transport or storage facilities.

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Section: Verification Using Dem Simulation Methodsmentioning

confidence: 99%

Monitoring bulk material pressure on bottom of storage using DEM

et al. 2019

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“…It serves as a coupling between the gearbox and the driven mechanism. One of the possible applications is also to drive hose conveyors [13][14][15][16][17]. The pyramidal surface serves to compensate for unevenness between the coupled mechanisms and at the same time for torque transmission [18].…”

Section: The Manufacturtured Componentmentioning

confidence: 99%

The evaluation of the production of the shaped part using the workshop programming method on the two-spindle multi-axis CTX alpha 500 lathe

et al. 2019

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The article deals with the description of the production of a shaped part composed of an outer pyramid and cylindrical surface, of inner cylindrical surfaces of different diameters and of an inner tongue groove. It describes the proposed tools and tool holders resulting from the technological process. In order to meet the required tolerances and shape deviations for the given component, the CTX alpha 500 two-spindle multi-axis CNC lathe was chosen for its production. Its control system enables the workshop method of programming and simulation of individual operations in automatic mode or in block-by-block mode. The design of the selected CNC lathe enables the machining of rotary parts in one clamping, which is ensured by the right and left spindle with chucks. The surface quality of the pyramidal surface and the internal diameter of D18H8 was measured using a Hommel Etamic W5 roughness gauge. The measured roughness values for the hole were: D = 18H8, Rz = 3.007 μm, Ra = 0.729 μm and for the pyramidal surface: Rz = 1.527 μm and Ra = 0.329 μm.

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“…However, due to the scale and the amount of the material flowing through them [8], they are exposed to various risks. Therefore, a very important aspect is understanding the loads acting on the receiving bin structure located under the retention bunker, which is directly subjected to all static forces from the vertical column of material and dynamic forces from falling rocks [9]. At the loading points of transfer chutes, or retention bunkers, the ore falls onto steel elements and the conveyor belt with a certain force whose value depends on its size and velocity, as well as the geometry of the structure [10].…”

Section: Introductionmentioning

confidence: 99%

Optimizing Retention Bunkers in Copper Mines with Numerical Methods and Gradient Descent

Bortnowski,

Król,

Suchorab-Matuszewska

et al. 2024

Applied Sciences

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This study examines the optimization of ore receiving bins in underground copper mines, targeting the reduction of rapid wear and tear on bin components. The investigation identifies the primary wear contributors as the force exerted by the accumulated ore and the velocity at which ore particles move. By altering design and operational parameters, the objective is to decrease wear at key points such as transfer areas, thereby improving the efficiency and service life of retention bunkers. A Discrete Element Method (DEM) model of the bin was created and validated against actual mining conditions to study the impact of material flow on wear. The optimization approach used a constrained gradient descent algorithm to minimize factors like particle velocity and pressure force, while maintaining the efficiency of the bin. The findings provide valuable insights for the future design enhancements, potentially improving the operational performance of retention bunkers in the mining industry.

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Energy calculation model of an outgoing conveyor with application of a transfer chute with the damping plate

Cited by 10 publications

References 16 publications

Monitoring bulk material pressure on bottom of storage using DEM

Monitoring bulk material pressure on bottom of storage using DEM

The evaluation of the production of the shaped part using the workshop programming method on the two-spindle multi-axis CTX alpha 500 lathe

Optimizing Retention Bunkers in Copper Mines with Numerical Methods and Gradient Descent

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