scholarly journals The Improved Motion Model of Particles in the Cone Crusher Considering the Spatial Compound Motion of the Mantle

Minerals ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 16
Author(s):  
Zilong Zhang ◽  
Tingzhi Ren ◽  
Jiayuan Cheng
Keyword(s):  
High Energy ◽  
Central Axis ◽  
Motion Model ◽  
System Transformation ◽  
Productivity Improvement ◽  
Cone Crusher ◽  
Motion Characteristics ◽  
Improved Model ◽  
Free Falling ◽  
Reduced Scale

The cone crusher is the main equipment in the particle crushing process. The productivity of the cone crusher is determined by the motion characteristics of particles passing through the crushing chamber. In order to accurately describe the motion characteristics of the particles, the influence of the spatial compound motion of the mantle rotates around the central axis of the cone crusher and its central axis on the motion characteristics of the particles is investigated, then the improved motion model is established. Through the coordinate system transformation matrix, the motion characteristics of the particles including spatial sliding, free-falling, and spatial compound falling are solved. The applicability and accuracy of the improved model in describing the motion characteristics of the particle were verified through the experiment using a reduced-scale experimental cone crusher to simulate the motion characteristics of the particle. Based on the improved model, the motion characteristics of the particles in the CF11 hydraulic cone crusher can be simulated. With the decrease in height, the motion characteristics of particles gradually change from spatial sliding to spatial compound falling and finally to free-falling. The particles deflect circumferentially around the central axis of the cone crusher. The circumferential deflection of particles is directly related to the motion characteristics including spatial sliding and spatial compound falling. The improved model provides a theoretical basis for the high energy design of the crushing chamber and productivity improvement of the cone crusher.

The Improved Model of Particle Shape Prediction Considering the Choke-Level Effect for Cone Crusher

2018 ◽  
Author(s):  
Zhang Wei ◽  
Wang Jixin ◽  
Yu Xiangjun
Keyword(s):  
Single Particle ◽  
Performance Optimization ◽  
Particle Shape ◽  
Particle Breakage ◽  
Zone Method ◽  
Shape Prediction ◽  
Cone Crusher ◽  
Motion Characteristics ◽  
Improved Model ◽  
Level Effect

The choke-level is one of the key factors that influence the falling process of the granular materials which is closely related to the crushing efficiency in the cone crusher. In this paper the motion characteristics of the particles near the choke-level have been analyzed and the phenomenon of single particle breakage below the choke level is pointed out. Based on the multi-zone method, an improved particle shape prediction model is established. In this model, the compound breaking behavior which includes the single particle breakage under the choke-level effect and the inter-particles breakage under the fill-feed, the transformation of particle shape and the particle size distribution in each crushing zone are considered. Tests on the PYG-B1735 cone crusher are conducted in order to validate the improved model. The improved model provides a theoretical foundation for the productivity estimation and the performance optimization.

Motion Simulation of Underwater Mooring Platform with Ocean Current

2013 ◽  
Vol 321-324 ◽  
pp. 815-818
Author(s):  
Fang Ze Zhao ◽  
Bao Wei Song ◽  
Xiao Xu Du
Keyword(s):  
Ocean Current ◽  
Mooring System ◽  
Motion Simulation ◽  
Motion Model ◽  
Motion Characteristics

Underwater mooring platforms which anchored by the anchor and cable have a certain function of the platform mooring at a certain depth. In this paper, the motion model of underwater mooring system was built through analyseing the motion characteristics of the cable geometry and the force of the cable. And the motion simulation of underwater mooring platform with ocean current was done. The results show that the motion of underwater mooring platform is stable.

scholarly journals Creativity and modelling the measurement process of the Higgs self-coupling at the LHC and HL-LHC

Synthese ◽  
2021 ◽  
Author(s):  
Sophie Ritson
Keyword(s):  
Large Hadron Collider ◽  
High Energy Physics ◽  
Hadron Collider ◽  
High Energy ◽  
Measurement Process ◽  
The Self ◽  
Epistemic Value ◽  
Philosophical Study ◽  
Epistemic Function ◽  
Improved Model

AbstractThis paper provides an account of the nature of creativity in high-energy physics experiments through an integrated historical and philosophical study of the current and planned attempts to measure the self-coupling of the Higgs boson by two experimental collaborations (ATLAS and CMS) at the Large Hadron Collider (LHC) and the planned High Luminosity Large Hadron Collider (HL-LHC). A notion of creativity is first identified broadly as an increase in the epistemic value of a measurement outcome from an unexpected transformation, and narrowly as a condition for knowledge of the measurement of the self-coupling of the Higgs. Drawing upon Tal’s model-based epistemology of measurement (2012) this paper shows how without change to ‘readings’ (or ‘instrument indicators’) a transformation to the model of the measurement process can increase the epistemic value of the measurement outcome. Such transformations are attributed to the creativity of the experimental collaboration. Creativity, in this context, is both a product, a creative and improved model, and the distributed collaborative process of transformation to the model of the measurement process. For the case of the planned measurements at the HL-LHC, where models of the measurement process perform the epistemic function of prediction, creativity is included in the models of the measurement process, both as projected quantified creativity and as an assumed property of the future collaborations.

The Effects of Sternum upon the Central Axis Depth-Dose Curves for High-Energy Electrons

Radiology ◽  
1966 ◽  
Vol 86 (1) ◽  
pp. 148-149 ◽  
Author(s):  
Peter R. Almond ◽  
Max L. M. Boone
Keyword(s):  
High Energy ◽  
Central Axis ◽  
Depth Dose ◽  
High Energy Electrons

CFD Analysis on Similarity Criteria of Hydrodynamic Characteristics for Gravity-Installed Anchors

2019 ◽  
Author(s):  
Jiancai Gao ◽  
Haixiao Liu
Keyword(s):  
Model Testing ◽  
Model Tests ◽  
Similarity Criteria ◽  
Scale Model ◽  
Hydrodynamic Characteristics ◽  
Cfd Analysis ◽  
Cfd Simulations ◽  
Tests Of Gravity ◽  
Free Falling ◽  
Reduced Scale

Abstract For reduced-scale model tests of gravity-installed anchors (GIAs), it is of great significance to extrapolate the testing results to prototype. This highlights the necessity of investigation of similarity criteria. The present work aims to find the similarity criteria of three prioritized hydrodynamic characteristics including VT, HP, and Cd for GIAs during installation in water through CFD simulations. In the present study, free falling processes of different reduced-scale T98 anchor models and prototype anchor is simulated, from which VT, HP, and Cd are extracted and analyzed to get the fitting curves for these three characteristics over reduced-scale λ. Based on these curves, hydrodynamic characteristics for prototype and other reduced-scale model can be extrapolated from model testing results. And, the researching procedure in this paper sets an example and reference to study about similarity criteria for other hydrodynamic characteristics.

scholarly journals Examination of Vehicle Motion Characteristics of a Maglev Train Set Using a Reduced-scale Model Experiment Apparatus

2012 ◽  
Vol 53 (1) ◽  
pp. 52-58 ◽  
Author(s):  
Hironori HOSHINO ◽  
Erimitsu SUZUKI ◽  
Takenori YONEZU ◽  
Ken WATANABE
Keyword(s):  
Model Experiment ◽  
Scale Model ◽  
Maglev Train ◽  
Vehicle Motion ◽  
Motion Characteristics ◽  
Reduced Scale

Improved model for solar cells with down-conversion and down-shifting of high-energy photons

2007 ◽  
Vol 40 (2) ◽  
pp. 341-352 ◽  
Author(s):  
Viorel Badescu ◽  
Alexis De Vos ◽  
Alina Mihaela Badescu ◽  
Aleksandra Szymanska
Keyword(s):  
Solar Cells ◽  
High Energy ◽  
Improved Model ◽  
Down Conversion

Variation in the position of the central axis maximum build-up point with field size for high-energy

1970 ◽  
Vol 43 (516) ◽  
pp. 911-911 ◽  
Author(s):  
P. Almond ◽  
E. Van Roosenbeek ◽  
R. Browne ◽  
J. Milcamp ◽  
C. B. Williams
Keyword(s):  
High Energy ◽  
Central Axis ◽  
Field Size
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