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Journal articles on the topic 'According to the size and the method of crushing'

Author: Grafiati
Published: 28 June 2021
Last updated: 7 February 2022

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1

Zhang, Li Song, Xiang Zhen Yan, and Xiu Juan Yang. "Classification Prediction Method Used in Coal Crushing." Advanced Materials Research 1044-1045 (October 2014): 268–71. http://dx.doi.org/10.4028/www.scientific.net/amr.1044-1045.268.

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Coal principal stresses with reservoir plane is analyzed, consequently coal seam crushed classification method is presented based on Hoek-Brown criterion. According to the coefficient of coal crushing, coal seam crushed coefficient size, four grades of A,B,C,D are divided for coal crushed degree along wellbore direction, and coal crushed classification standard is determined. Using the classification method and standard, the distribution regularity of coal crushing is studied for ZP-05 Well in QinShui basin. The research results show that coal crushing of ZP-05 is considered as grade B. The pr
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2

Wu, Zhong Wei, Zhi Feng Liu, and Jian Zhao. "Recycling Experimental Research of Thermosetting Phenolic Plastic Waste Based on Mechanical Effects." Applied Mechanics and Materials 130-134 (October 2011): 1708–11. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.1708.

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Using adjustable speed crushing regeneration test device for the recovery experiment of thermosetting phenolic plastic waste, this paper analyses the principle of recovery process. Through particle size analytical technique, FTIR, XRD and SEM etc. various testing method is analyzed mechanochemical effects of crushing process. Research the speed, time, temperature process parameters of the influence of recycling process conditions. According to the experimental results, it established the mechanochemical model and analyzed the degradation and regeneration mechanism of thermosetting phenolic pla
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3

Zhu, Zhong Xi, Gong Hui Liu, Jun Li, and Meng Bo Li. "Gas Drilling Cuttings Breaking on Return." Applied Mechanics and Materials 90-93 (September 2011): 151–56. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.151.

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More cuttings producing in higher penetration rate of gas drilling are usually in the larger non-uniform size at the bottom and in the smaller uniform size back to the wellhead. It is indicating that cuttings in the well should be appeared in the successive breaking in the process of upward migration. According to the particle broken theories, the successive breaking phenomenon were analyzed, and given the calculating method for the probability of secondary impact crushing, and applied the breaking process matrix and the particle size distribution function to the cuttings migration crushing in
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4

Xiao, Dong, Xiwen Liu, Ba Tuan Le, Zhiwen Ji, and Xiaoyu Sun. "An Ore Image Segmentation Method Based on RDU-Net Model." Sensors 20, no. 17 (2020): 4979. http://dx.doi.org/10.3390/s20174979.

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The ore fragment size on the conveyor belt of concentrators is not only the main index to verify the crushing process, but also affects the production efficiency, operation cost and even production safety of the mine. In order to get the size of ore fragments on the conveyor belt, the image segmentation method is a convenient and fast choice. However, due to the influence of dust, light and uneven color and texture, the traditional ore image segmentation methods are prone to oversegmentation and undersegmentation. In order to solve these problems, this paper proposes an ore image segmentation
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5

Wang, Wei-Chien, Wei-Hsing Huang, Ming-Yu Lee, Hoang Trung Hieu Duong, and Ya-Hui Chang. "Standardized Procedure of Measuring the pH Value of Cement Matrix Material by Ex-Situ Leaching Method (ESL)." Crystals 11, no. 4 (2021): 436. http://dx.doi.org/10.3390/cryst11040436.

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According to the Spanish National Research Council (CSIC) report, the ex-situ leaching method (ESL) is more appropriate and accurate than other methods for measuring pH value in terms of repeatability and reproducibility. In this study, the ESL method was used to measure the pH value of cement matrix materials. The design test process aimed to avoid underestimating the variation in pH during the process of solution stirring and pH measurement without using both argon and nitrogen to block the specimen contact with air, with good repeatability and reproducibility. This study also considered the
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6

Polievoda, Yurii. "Investigation of the process of peeling walnuts between two parallel plates." Vibrations in engineering and technology, no. 3(94) (November 26, 2019): 110–17. http://dx.doi.org/10.37128/2306-8744-2019-3-14.

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The article provides a detailed overview of the process of splitting the kernel of a walnut. Examples of many ways to split the shell are given, all of their disadvantages and advantages are listed. The mechanical method of peeling nuts using low-frequency oscillations has been theoretically investigated and substantiated. The kinematics of the process of crushing nuts between two parallel plates has been extensively analyzed. Graphical correlations were obtained between the size of the nut shell and the dynamics of the driving force of the nut moisture. It is revealed that the process of dest
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7

Faghih, Mojdeh, Ebrahim Karamian, and Ahmad Monshi. "Investigation of Nanoparticles of Carbon and Calcined Alumina on Mechanical and Corrosion Properties in MgO-C Refractories." Advanced Materials Research 829 (November 2013): 665–69. http://dx.doi.org/10.4028/www.scientific.net/amr.829.665.

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Today due to the unique properties of magnesia carbon refractories, the iron and steel industries are of special interest. Therefore, it is important to extend the life of the refractory. The effect of calcined alumina and nanocarbon on the mechanical strength and corrosion resistance against slag refractories magnesia carbon has been studied. Mechanical strength of cold crushing strength (CCS) was measured according to ASTM C0133-97R03 numbers. The bulk density (BD) and apparent porosity (AP) were determined respectively, relative to the size and weight measured using Archimedes method accord
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8

Duan, Guochen, Boqiang Shi, Yanhua Shen, and Guoqing Yu. "Establishment of a Laminated Crushed Products Function and Numerical Analysis." Energies 12, no. 5 (2019): 819. http://dx.doi.org/10.3390/en12050819.

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A model of the relative compression ratio for single-particle crushed products, based on the distinct element method (DEM) and numerical analysis, was established to describe precisely the crushed products of granular particles during laminated crushing. The relative compression ratio model was used to describe the functional relationship between the total compression ratio and the single-particle compression ratio, which can be described by lognormal distribution. The single-particle crushed products model was used to describe the functional relationship between the single-particle compressio
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9

Ishchenko, Kostiantyn, Volodymyr Konoval, and Liudmyla Lohvyna. "An effective way to rock mass preparation on metallic and nonmetallic quarries Ukraine." E3S Web of Conferences 109 (2019): 00031. http://dx.doi.org/10.1051/e3sconf/201910900031.

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A method in experimental studies and industrial-polygon particular conditions justifying the choice of a rational design of an explosive charge. The comparative results of the evaluation of the stress wave’s amplitudes studies and the character of crushing hard media from the explosion of the charge explosives-variable and constant cross section. The dependences of the particle size distribution of various designs explosive charges destroyed by the explosion are constructed. In industrial conditions, the rationale for the explosive boreholes location according to the massif structure. Adjusted
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10

Qu, Li Gang, and Hang Gao. "Fracture Analysis of Side-Gusset Plate of Combined-Roller Based on Finite Element Method." Key Engineering Materials 324-325 (November 2006): 137–40. http://dx.doi.org/10.4028/www.scientific.net/kem.324-325.137.

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The side-gusset plate is connector of the combined-roller, which is the key component of the High-pressure Grinding Roller equipment that is applied in crushing raw iron ore, Fracture occurred at the bottom of the side-gusset plate while the roller’s operation. For exploring the reason of fracture, the stress distribution and corresponding critical location of the side-gusset plate were computed and analyzed according to two working situations based on finite element method. The analysis result illustrates that it is the failure of infant mortality because of overloading, not belongs to fatigu
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11

Mehrabi, Sadrollah, Esmat Rasoli, Hamidreza Ghafarian Shirazi, and Amir Mehrabi. "Efficacy of electromagnetic lithotriptor in the treatment of renal and upper ureteral stones." Journal of Renal Injury Prevention 8, no. 2 (2018): 82–85. http://dx.doi.org/10.15171/jrip.2019.16.

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Introduction: The innovation of outpatient extracorporeal shock wave lithotripsy (ESWL) has created a revolution in the treatment of urinary tract stones. Objectives: The aim of this study was to evaluate the success rate of electromagnetic lithotriptor, in the treatment of renal and upper ureteral stones. Patients and Methods: In this study, 84 patients aged over 10 years, with renal and upper ureteral stones less than 20 mm, were considered for ESWL. Patients were randomly assigned into two groups. In all patients, using ultrasound and fluoroscopy, stone was localized and using an electromag
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12

Zhang, Jun Cui, and Li Cheng Wang. "Nonlinear Dynamic Analysis of Rigid - Loose Coupling Bidirectional Vibrating-Crushing System." Applied Mechanics and Materials 496-500 (January 2014): 1193–96. http://dx.doi.org/10.4028/www.scientific.net/amm.496-500.1193.

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The vibratory crusher with two cavities and four jaws is a new superfine crusher, which is a nonlinear vibrating system with rigid - loose coupling. In order to make clear the dynamics performance of the crusher at work, a model of rigid - loose coupling bidirectional vibrating-crushing system is established, according to the structural characteristics and working principle of the crusher. By using four-order Carl Jung Kutta method,we have gained the time history of displacement, velocity, and acceleration, the displacement spectrum and the hysteretic impact force. From it we can see that the
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13

Ercins, Serdar, and Cem Şensöğüt. "Performance Analysis of the Explosion Applications Realized with Electronic Ignition System at Different Times in the Same Field." International Journal of Economic and Environmental Geology 11, no. 1 (2020): 17–23. http://dx.doi.org/10.46660/ijeeg.vol11.iss1.2020.406.

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In the modern world, the mining and construction sectors are developing rapidly and the need for engineering structures and substructures is increasing day by day. The quarries have been brought to an important place in the world within the scope of mining activities while the products needed by these structures are obtained especially from the quarries. Quarries are generally operated by forming benches according to the open pit mining method. In this production method, considering the state of geological structures in the field, the rocks (limestone, basalt, etc.) loosened by drilling and bl
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14

Ercins, Serdar, and Cem Şensöğüt. "Performance Analysis of the Explosion Applications Realized with Electronic Ignition System at Different Times in the Same Field." International Journal of Economic and Environmental Geology 11, no. 1 (2020): 17–23. http://dx.doi.org/10.46660/ojs.v11i1.406.

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In the modern world, the mining and construction sectors are developing rapidly and the need for engineering structures and substructures is increasing day by day. The quarries have been brought to an important place in the world within the scope of mining activities while the products needed by these structures are obtained especially from the quarries. Quarries are generally operated by forming benches according to the open pit mining method. In this production method, considering the state of geological structures in the field, the rocks (limestone, basalt, etc.) loosened by drilling and bl
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15

Liu, M., and S. J. Jiang. "Research on the Milling Toughness of Black Silicon Carbide and the Repeatability of the Testing Results." Key Engineering Materials 487 (July 2011): 225–28. http://dx.doi.org/10.4028/www.scientific.net/kem.487.225.

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The toughness of abrasive grits means their resistance against breaking under the effect of cutting forces. The commonly used test methods include single crystal static compressing, rolling crushing, mould pressing, as well as milling. In the national standard “GB/T 23538-2009 Conventional Abrasive Testing Methods for Toughness (ball mill method)”, it is stipulated that milling machine is to be used for the abrasive grits F8-F150 to determine their toughness. This method by milling includes testing steps as follows: take a certain amount of abrasive grits , together with steel balls of certain
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16

Carpinteri, A., and M. Corrado. "Nonlinear fracture mechanics investigation on the ductility of reinforced concrete beams." Revista IBRACON de Estruturas e Materiais 3, no. 2 (2010): 137–48. http://dx.doi.org/10.1590/s1983-41952010000200002.

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In the present paper, a numerical algorithm based on the finite element method is proposed for the prediction of the mechanical response of reinforced concrete (RC) beams under bending loading. The main novelty of such an approach is the introduction of the Overlapping Crack Model, based on nonlinear fracture mechanics concepts, to describe concrete crushing. According to this model, the concrete dam- age in compression is represented by means of a fictitious interpenetration. The larger is the interpenetration, the lower are the transferred forces across the damaged zone. The well-known Cohes
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17

Hu, Yang, Wanxin Li, Hualin Fan, et al. "Experimental investigations on the failures of woven textile sandwich panels." Journal of Thermoplastic Composite Materials 30, no. 2 (2016): 196–224. http://dx.doi.org/10.1177/0892705715598357.

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To reveal the deformation, strength, and failure modes of woven textile sandwich composites (WTSCs), test methods suggested by national standards were referenced and discussed to carry out flatwise and edgewise compression experiments, uniaxial stretching experiments, and three-point bending experiments according to the structural characteristics of WTSC. Strength and failure modes of WTSCs in flatwise compression and uniaxial tension were acquired. Anisotropy and size dependency of strength and failure modes of WTSC panels in edgewise compression were revealed. Strength of weft-compressed pan
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18

Rosli, N. R., Jariah Mohd Juoi, A. Shaaban, and N. F. Ayoob. "Characterisation and Properties of Sintered Recycled Glass Utilising CIP Method." Key Engineering Materials 471-472 (February 2011): 245–50. http://dx.doi.org/10.4028/www.scientific.net/kem.471-472.245.

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Recycling glass is chosen as an alternative raw material in upgrading ceramic into glass ceramic. The main objectives are to determine the effect of sintering temperature and the recycled glass to ball clay weight ratio on glass ceramic produced from recycled glass. The recycled glass powders are prepared by crushing and grinding waste glass bottles to a particles size distribution below than 75 µm. The raw materials (recycled glass powder and ball clay) are characterised by Differential Thermal Analysis (DTA) and its composition is determine by X-Ray Fluorescence (XRF). The recycled glass pow
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19

Flisyuk, E. V., S. S. Belokurov, I. A. Narkevich, O. M. Flisyuk, and D. Yu Ivkin. "The Analysis of Process of Crushing in the Vibrocavitational Homogenizer." Drug development & registration 9, no. 4 (2020): 53–58. http://dx.doi.org/10.33380/2305-2066-2020-9-4-53-58.

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Introduction. Vibration cavitation homogenizers are increasingly used in various industries, including the pharmaceutical industry – for the preparation of creams, gels to give them a homogeneous composition, and more recently for the extraction of valuable substances from plant materials. As we have shown earlier, a comparison of the extraction of dioscin from fenugreek seeds, carried out in devices of various designs, under the same conditions for organizing the process showed that the most effective method was the extraction method in a vibro-cavitation field. Obviously, this is due to the
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20

Wang, Jinshui, Yanli Yin, and Feng Jia. "Impact of ultrasound treatment on molecular structures of casein." JOURNAL OF ADVANCES IN BIOTECHNOLOGY 2, no. 2 (2012): 106–12. http://dx.doi.org/10.24297/jbt.v2i2.1702.

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Casein was modified by ultrasound treatment (160W, 400 W)and the structural characteristics of casein (control), USC-1 (160W of ultrasound treated casein) and USC-2 (400W of ultrasound treated casein) were investigated. Ultrasound treatment resulted in increase in the numbers of protein bands of casein in region of low molecular weight according to SDS-PAGE pattern. The relative percentage of the proteins with molecular mass (MM) of over 30 kD in USC-1 and USC-2 significantly decreased compared with control sample. Coupled with this is the relative percentage of the proteins with MM of reg
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21

Silva, Bruna Sanches, and Marcio Schmiele. "From olive to olive oil: a general approach." Research, Society and Development 10, no. 3 (2021): e32210313408. http://dx.doi.org/10.33448/rsd-v10i3.13408.

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This study aimed to carry out a systematic literature review about olives, extraction methods, physical and chemical characterization and identity and quality parameters of olive oils, as well as technological alternatives for using by-products. Olive oil is the oil extracted from the ripe fruits of the olive tree (Olea europaea L.). Trees have been cultivated in the Mediterranean Region for several centuries and thousands of cultivars differ by weight, size and chemical characteristics of the fruits. Currently, olive oil is produced worldwide and the olive plant was recently introduced in the
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22

Rybakov, Vladimir, Anatoly Seliverstov, Denis Petrov, Andrei Smirnov, and Anna Volkova. "Lightweight steel concrete structures slab panels load-bearing capacity." MATEC Web of Conferences 245 (2018): 08008. http://dx.doi.org/10.1051/matecconf/201824508008.

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Lightweight steel concrete structures (LSCS) - an innovative building structure type that can be used both as load-bearing and as enclosing one. They consist of profiled steel usually galvanized and cold-bent - filled with a monolithic foam concrete with a 200kg/m3 density, and with fiber cement sheets sheathing. These structures can be used in industrial and civil buildings as internal and external bearing and enclosing wall structures, and as slabs. According to the LSCS production method, prefabricated panels (walls and slabs) and building site performed constructions are distinguished. The
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23

Simonsen, Bo Cerup, and Peter Friis Hansen. "Theoretical and Statistical Analysis of Ship Grounding Accidents." Journal of Offshore Mechanics and Arctic Engineering 122, no. 3 (2000): 200–207. http://dx.doi.org/10.1115/1.1286075.

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Today, the ship kinetic energy and structural crushing resistance is not taken into account in any regulation concerned with the damaged state of a conventional ship (damage stability, oil outflow, etc.). However, the past few years of experience with high-speed craft (HSC) have clearly demonstrated that impact damage is indeed related to the kinetic energy and the strength of the ship. The present paper discusses various aspects related to rational design against grounding accidents. A relatively simple theory is reviewed for comparing the expected grounding damage of different ships, taking
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24

Lyashenko, V. I., V. Z. Dyatchin, and V. P. Franchuk. "IMPROVEMENT OF VIBRATING FEEDERS-SCREENS FOR MINING AND METALLURGICAL INDUSTRY." Izvestiya Visshikh Uchebnykh Zavedenii. Chernaya Metallurgiya = Izvestiya. Ferrous Metallurgy 61, no. 6 (2018): 470–77. http://dx.doi.org/10.17073/0368-0797-2018-6-470-477.

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The main scientific and practical results of the improvement of vibrating feeders-screens for mining and metallurgical industry are presented on the basis of dynamic calculation of the vibrating feederscreen with two differently directed self-balancing vibrators. Methods of theoretical generalizations are described using mathematical statistics, physical and mathematical modeling, computation and feasibility studies, laboratory and full-scale experimental studies, industrial tests in the conditions of operating enterprises using standard and new methods. Mathematical modeling and calculation o
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25

Yin, Hanfeng, Jinle Dai, Guilin Wen, Wanyi Tian, and Qiankun Wu. "Multi-Objective Optimization Design of Functionally Graded Foam-Filled Graded-Thickness Tube Under Lateral Impact." International Journal of Computational Methods 16, no. 01 (2018): 1850088. http://dx.doi.org/10.1142/s0219876218500883.

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Foam-filled thin-walled structure has been widely used in vehicle engineering due to its highly efficient energy absorption capacity and lightweight. Unlike the existing foam-filled thin-walled structures, a new foam-filled structure, i.e., functionally graded foam-filled graded-thickness tube (FGFGT), which had graded foam density along the transverse direction and graded wall thickness along the longitudinal direction, was first studied in this paper. Two FGFGTs with different gradient distributions subjected to lateral impact were investigated using nonlinear finite element code through LS-
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26

Durney, T. E., and T. P. Meloy. "Particle shape effects due to crushing method and size." International Journal of Mineral Processing 16, no. 1-2 (1986): 109–23. http://dx.doi.org/10.1016/0301-7516(86)90078-5.

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27

Fang, Huaiying, Dawei Xing, Jianhong Yang, Fulin Liu, Junlong Chen, and Jiansheng Li. "Experimental Study on Limestone Cohesive Particle Model and Crushing Simulation." Advances in Materials Science and Engineering 2018 (November 1, 2018): 1–12. http://dx.doi.org/10.1155/2018/3645720.

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This study investigates the effect of impact velocity and particle size on crushing characteristics. We use a discrete-element method simulation and construct cohesive limestone particles with internal microinterfaces and cracks for impact crushing experimentation. The simulation model follows the same process as the impact crushing experiment. Results show that, after crushing at impact velocities of 30 and 40 m/s, the simulated particle-size distribution curve matches experimental results as closely as 95%. For different particle sizes, results are more than 90% in agreement. These results i
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28

Mazur, Marcin. "Determination of crushing energy during vibratory crushing." New Trends in Production Engineering 2, no. 1 (2019): 287–94. http://dx.doi.org/10.2478/ntpe-2019-0030.

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Abstract The paper presents a new method of determining the energy consumption for vibratory crushing. Using the laboratory vibratory jaw crusher with kinematic actuation of the jaws, the study of determining power consumption while crushing limestone and diabase was conducted. During the study, electrical energy used on the crushing process was measured as a function of changing design and kinematic parameters of the vibratory crusher, i.e.: jaws stroke, the outlet gap size and frequency of jaws vibration. The article presents program of the research, the laboratory test stand of the vibrator
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29

Mao, Qian, Yonghai Sun, Lu Wang, et al. "Particle Size Distribution of Food Boluses and Validation of Simulation During Artificial Indenter Crushing." International Journal of Food Engineering 11, no. 4 (2015): 457–66. http://dx.doi.org/10.1515/ijfe-2015-0027.

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Abstract To study the effects of indenter surface shapes on the crushing of foods, a double-tooth indenter (DTI), a single-tooth indenter (STI), a cylinder-type indenter (CTI) and a wave-type indenter (WTI) were developed by simulating the crown of human molar. Crushing experiments and analysis of finite element simulation were done. Crushing effect was determined by the wet sieving and weighing method; numerial simulations were performed for the crush process using the non-linear contact finite element method. The results showed that the DTI yielded the smallest median size among the four ind
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30

Cui, Guang Wen, Ming Yang Sun, Guo Yang Song, and Hui Zhao. "Study of Desulphurization and Deashing for High Sulfur Coal." Applied Mechanics and Materials 448-453 (October 2013): 3818–24. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.3818.

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A new method to determine the crushing size for Desulfurization and deashing is introduced. By this method, the proper crushing size of 3mm for the high sulfur coal in this research is obtained. Three cone hydrocyclone is used as the separation equipment for -3mm size fraction. Ep (Probable error) values from three cone hydrocyclone’s performance on different size fractions are discussed and an Ep value of 0.073 was achieved from three cone hydrocyclone’s treatment of 3mm-0.2mm size fraction. A desulfurization and deashing process is designed which leads to a satisfactory desulfurization and d
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31

Maskaeva, Larisa N., Polina S. Bogatova, Anastasia D. Kutyavina, Yury A. Babchenko, and Viacheslav F. Markov. "Chemical bath synthesis of metal chalcogenide films. Part 41. Effect of Sr2+ ions on deposition kinetics, composition and morphology of PbS thin films." Butlerov Communications 58, no. 5 (2019): 141–48. http://dx.doi.org/10.37952/roi-jbc-01/19-58-5-141.

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Lead sulphide thin films are one of the most sensitive materials in the visible and near-IR spectral ranges (0.4-3.0 μm) and due to this, they are widely used in optoelectronics. One of the most promising methods for the synthesis of this semiconductor material is chemical bath deposition from aqueous solutions. At the same time, doping additives used to improve the properties of the deposited films. In this paper, we consider the effect of strontium cations Sr2+ on the deposition kinetics of the solid lead sulfide phase, as well as on the thickness, morphology and elemental composition of che
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32

YU, QIANMI, JIANKUN LIU, UJWALKUMAR D. PATIL, SURYA S. C. CONGRESS, and ANAND J. PUPPALA. "TWO-DIMENSIONAL FRACTAL MODEL FOR ULTIMATE CRUSHING STATE OF COARSE AGGREGATES." Fractals 27, no. 07 (2019): 1950109. http://dx.doi.org/10.1142/s0218348x19501093.

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The research on the ultimate crushing state of coarse aggregates is beneficial to analyze and predict the evolutionary process of crushing. The Growing Path method uses the two-dimensional fractal geometry structure to simulate the size variation of particle size fraction during the particle breakage of coarse aggregates and it serves to investigate the ultimate fractal dimension corresponding to the ultimate crushing state of coarse aggregates. This method manifests the self-growing characteristics of particle size distribution in the process of particle crushing. This study found that the tw
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33

Moncada, Manuel, Patricio Toledo, Fernando Betancourt, and Cristian G. Rodríguez. "Torque Analysis of a Gyratory Crusher with the Discrete Element Method." Minerals 11, no. 8 (2021): 878. http://dx.doi.org/10.3390/min11080878.

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Comminution by gyratory crusher is the first stage in the size reduction operation in mineral processing. In the copper industry, these machines are widely utilized, and their reliability has become a relevant aspect. To optimize the design and to improve the availability of gyratory crushers, it is necessary to calculate their power and torque accurately. The discrete element method (DEM) has been commonly used in several mining applications and is a powerful tool to predict the necessary power required in the operation of mining machines. In this paper, a DEM model was applied to a copper mi
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34

Duan, Guo-chen, Bo-qiang Shi, and Jie Gu. "Establishment of energy consumption model and multi-objective optimal control method of 6-DOF robotic crusher." Advances in Mechanical Engineering 12, no. 10 (2020): 168781402096757. http://dx.doi.org/10.1177/1687814020967579.

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In order to optimize the real-time crushing effect of 6-DOF robotic crusher, a model of energy consumption and a multi-objective optimization control method for 6-DOF robotic crusher are proposed. In optimization function, the optimization objective are total energy consumption, mass fraction of crushed products below 12 mm, energy consumption ratio, and throughput, and optimization variables are position of suspension point, rotational speed and precession angle of the moving cone. Among them, the function of total energy consumption and effective energy consumption is established and the fun
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35

Duan, Chen Long, Yue Min Zhao, Jing Feng He, and Nian Xin Zhou. "Research on Liberation Mechanism of the Impact Crushing Waste Printed Circuit Board." Advanced Materials Research 113-116 (June 2010): 730–34. http://dx.doi.org/10.4028/www.scientific.net/amr.113-116.730.

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The reutilization of waste Printed Circuit Boards (PCB) is a focused topic in the field of environment protection and resource recycling, and the crushing is the crucial process for recycling waste PCB. A hamper impacting crusher was used to achieve metals crushing liberation from non-metals, the liberation mechanism of PCB can be explained by dispersion liberation accompanied disengaging liberation. The Rosin-Rammler distribution model of crushed PCB particle was put forward. The evaluation indexes show that Rosin-Rammler function can accurately describe size distribution of PCB particles bec
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Choi, Jinhyuk, Sung Hun Cho, Tae Ho Kim, and Soo Wohn Lee. "Comparison of Sonochemistry Method and Sol-Gel Method for the Fabrication of TiO2 Powder." Materials Science Forum 695 (July 2011): 109–12. http://dx.doi.org/10.4028/www.scientific.net/msf.695.109.

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Sol-gel with sonochemical process and sol-gel method were used for the fabrication of photocatalytic TiO2 powder and the properties of the TiO2 powder thus prepared were examined and compared. For the synthesis of TiO2 powder, the starting material was Ti-butoxide and H2O and the reaction was carried out at 80 °C in a sol-gel method. On the other hand, Ti-butoxide was reacted with H2O in an ultrasonic frequency of 23 kHz with ultrasonic powers of 800 W for two hours. After evaporation, 24 hours aging time was kept at 400 °C in both cases, the final product appeared was the anatase phase. Ultra
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37

Lu, Feng Yi, Xin Xin Liu, and Ge Ning Xu. "Research on Analysis Method of Fatigue Strength for New Type Crushing Ripper Based on the Composite Load Spectrum." Applied Mechanics and Materials 487 (January 2014): 378–84. http://dx.doi.org/10.4028/www.scientific.net/amm.487.378.

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In view of the problem that new type crushing ripper installation of tamping equipment in circulation under the action of different load working multiple cases may occur structural fatigue damage, analysis of its force characteristic, establishment ripper rack compression bending component model, according to the working condition of the most unfavorable load combinations, using the allowable stress method to calculate structural fatigue strength; the combined effect of road load spectrum and vibrating load is also taken into consideration, then statics analysis and fatigue analysis of new typ
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38

Peng, Hong Ge, Qing Xiang Cai, Wei Zhou, Ji Sen Shu, and Guo Ji Li. "Influence Analyzing of Slope Stability with Setting of Crushing Station in Semi-Continuous Technology." Advanced Materials Research 354-355 (October 2011): 98–103. http://dx.doi.org/10.4028/www.scientific.net/amr.354-355.98.

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According to the analysis of the semi-continuous mining system with crushing station set on end-slope and the relation with working wall and non working wall, the calculation method of uncovered end-slope area and the coefficient of slope stability was elicited, considering the external load caused by crushing station location. The variation curve and the law of stability coefficient were also obtained. Combining the field practice, the research conclusion indicates that the crushing station setting of semi-continuous mining system would affect not only the truck transportation distance and th
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39

Lu, Cheng, Lin Chen, Yun Bo Chen, et al. "Effects of Different Granularity Control Methods on Morphology, Structure and Electrochemical Performance of LiFePO4/C." Advanced Materials Research 893 (February 2014): 830–33. http://dx.doi.org/10.4028/www.scientific.net/amr.893.830.

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LiFePO4/C materials were synthesized by spray-drying method. The particle size of the LiFePO4/C was controlled by mechanical crushing or airflow crushing. The morphology, structure and electrochemical properties of the materials were characterized. The results show that: The smaller powder particle and better particle size distribution could be got using the two granularity control methods above. The special surface area of the material increased, the tap density decreased and the high rate performance deteriorated when the particle size of LiFePO4/C was controlled. After the particle size of
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40

Chai, Zhin An, Cheng Ji Deng, Hong Xi Zhu, Xiao Jun Zhang, and Liang Yi Zhou. "Effect of Particle Size Distribution of Raw Materials on Properties of Magnesia-Alumina Refractory." Key Engineering Materials 697 (July 2016): 595–98. http://dx.doi.org/10.4028/www.scientific.net/kem.697.595.

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Starting from different sizes of magnesia and bauxitewith sodium hexametaphosphate as anchoring agent, specimens obtained by suppression were sintered at 1500°C and 1550°C and heat preservation for 3h in the electric hearth furnace, respectively. The effect of particle size distribution of magnesia and bauxite on the properties of magnesia-alumina refractory materials was investigated. The composition of magnesia-alumina refractory which consists of various particle size distributions was determined, according to Andreasen packing model, with distribution coefficient (q) of 0.15, 0.20, 0.25, 0
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41

Liu, Yang, Xiao Zhu Li, and Cheng Lin Wang. "Discrete Element Simulation of Rock Crushing Considering Different Shape." Applied Mechanics and Materials 353-356 (August 2013): 715–18. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.715.

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Numerical simulation was conducted to study the particle breakage of rock in rolling compaction (RC) test based on discrete element method (DEM). Different shapes of particles were formed to represent the real particle shape. A quantitative analysis method of particle breakage was proposed according to the grading curve before and after compaction. The numerical results had a good agrrement with the field test, which indicated that the method adopted in this paper was feasibile and could consider the influence of the particle shape on the particle breakage in RC test.
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42

Wang, Yidong, Wenjiao Dan, Yongfu Xu, and Yue Xi. "Fractal and Morphological Characteristics of Single Marble Particle Crushing in Uniaxial Compression Tests." Advances in Materials Science and Engineering 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/537692.

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Crushing of rock particles is a phenomenon commonly encountered in geotechnical engineering practice. It is however difficult to study the crushing of rock particles using classical theory because the physical structure of the particles is complex and irregular. This paper aims at evaluating fractal and morphological characteristics of single rock particle. A large number of particle crushing tests are conducted on single rock particle. The force-displacement curves and the particle size distributions (PSD) of crushed particles are analysed based on particle crushing tests. Particle shape play
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43

Zhai, You Wen, Jin Hu, Xiao Qin Zhu, Kai Jun Wang, and Wei Jun Zhang. "Preparation and Characterization of Lithium Orthosilicate Ceramic Pebbles by Melt Spraying Method." Key Engineering Materials 697 (July 2016): 818–21. http://dx.doi.org/10.4028/www.scientific.net/kem.697.818.

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This paper studied the experimental procedures,, test equipment and test methodology of the melt spraying method. Meanwhile, according to performance index of lithium orthosilicate (Li4SiO4) ceramic pebbles to optimize the melt spraying method. Test analysis of the diameter of orthosilicate pebbles, degree of spheroid of orthosilicate pebbles, surface topography of orthosilicate pebbles, metallographic structure of orthosilicate pebbles, section morphology, crushing strength and phase composition. Results in this work indicate that the lithium orthosilicate (Li4SiO4) ceramic pebbles with a fla
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44

Liu, Yang, Yan Tao Wang, and Xiao Zhu Li. "Analysis of Particle Crushing in Rolling Compaction for Rockfill Dam Using DEM." Applied Mechanics and Materials 353-356 (August 2013): 702–5. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.702.

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Based on the rollingcompaction (RC) test of the Nuozhadu coarse rockfill zone of upstream anddownstream I district rockfill engineering, numericalsimulation was conducted to study the particle breakage of RC test usingdiscrete element method (DEM). The movement and the crushing mechanism of theparticles in the RC process were analyzed according to the numerical results ofDEM. The numerical results indicated that the dominant damage were tensionfailure. The crushing zone was approximate inclined 45 degrees to horizondirection and extended to the bottom in the RC process.
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45

Guo, Hui, Yunlai Deng, Shitong Fan, and Renjie Pan. "Calculation and Prediction of Crushing Process of Al–Mg–Si Alloy Thin-Walled Components." Metals 11, no. 1 (2020): 28. http://dx.doi.org/10.3390/met11010028.

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Crushing performance is being widely investigated because it is the key performance indicator of the thin-walled beam structure in automobile safety components. In this study, five kinds of ageing state with different yield strengths were prefabricated with a self-developed KHC63 alloy. Using a rectangular tube profile, the physical relationship between crushing properties and mechanical properties, and the structure of the profile, were studied. According to variation characteristics, the crushing curve was divided into four typical stages: elastic stage, bending stage, compaction stage and f
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46

Chanh Nghia, Nguyen, Tatacipta Dirgantara, Sigit P. Santosa, Annisa Jusuf, and Ichsan Setya Putra. "Impact Behavior of Square Crash Box Structures Having Holes at Corners." Applied Mechanics and Materials 660 (October 2014): 613–17. http://dx.doi.org/10.4028/www.scientific.net/amm.660.613.

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In this paper, an analytical prediction and numerical simulation of the behavior of square crash box structures having hole at corners on dynamic axial crushing are studied. The focus of the present theoretical prediction is to calculate the mean crushing force and maximum crushing force during the folding process subjected to axial impact loading. Then, the effect of hole size to the crushing response of square crash box structures was also evaluated. For validation, an explicit non-linear commercial finite element code LS-DYNA was used to predict the response of the structures subjected to a
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47

Wei, Like, Qingxin Qi, Hongyan Li, Bin Zhang, Yongren Wang, and Linghai Kong. "A Case Study of Damage Energy Analysis and an Early Warning by Microseismic Monitoring for Large Area Roof Caving in Shallow Depth Seams." Shock and Vibration 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/709459.

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Shallow depth coal seams are widely spread in Shendong mining area, which is located in the Northwestern region of China. When working face is advanced out of concentrated coal pillar in upper room and pillar goaf, strong strata behaviors often cause support crushing accidents, and potentially induce large area residual pillars instability and even wind blast disaster. In order to predict the precise time when the accident happens, guaranteeing life-safety of miner, microseismic monitoring system was for the first time applied in shallow coal seam. Based on damage mechanics correlation theory,
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48

Lv, Yi. "Rubber Block Granular Control Study in the Crushing Process Waste Tires." Applied Mechanics and Materials 427-429 (September 2013): 333–36. http://dx.doi.org/10.4028/www.scientific.net/amm.427-429.333.

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Decreases the broken tire rubber block granularity can shorten tire flour milling process. Cutting the tire rubber block size control during processing method can be changed to achieve. Method by previously cut on the tire tread and an annular notch cut layered tread colloid. Tire crushing process down into tire tread and colloidal cutting kerf. Slitting and cutting the tire during the tire clamped in a fixed state. Maintaining the tire tread and the position of the cutting tool is parallel. Feeding the tool or tire in-process control of the tool infeed depth and speed of rotation of the tire.
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49

Suleymanova, L., M. Malyukova, I. Ryabchevskiy, A. Koryakina, and D. Levshina. "ILLUMINATED CONCRETE USING ROCK CRUSHING WASTE." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 5, no. 12 (2021): 8–16. http://dx.doi.org/10.34031/2071-7318-2020-5-12-8-16.

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TLuminous products are obtained from architectural and decorative concrete using photoluminescent pigment, formed in various positions and any configuration that does not lose their architectural expressiveness over a long period of operation. The use of products with a glow effect provides increased safety at night and is an additional means of signaling on dangerous and worst-lit sections of roads, parking lots, bicycle paths. Optimally selected materials and the method of surface treatment of products provide decorativeness of small architectural forms in the daytime. The compositions of ar
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50

Chen, Yanlong, Bangyong Yu, Kai Zhang, Mingwei Zhang, Guang Xu, and Zhanqing Chen. "Permeability Evolution and Particle Size Distribution of Saturated Crushed Sandstone under Compression." Geofluids 2018 (2018): 1–12. http://dx.doi.org/10.1155/2018/6043420.

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In this research, the particle size distribution and permeability of saturated crushed sandstone under variable axial stresses (0, 2, 4, 8, 12, and 16 MPa) were studied. X-ray Computed Tomography results revealed that particle crushing is likely to occur considerably as the axial stress is approaching 4 MPa, which results in the change of pore structure greatly. During compression, the particle size distribution satisfies the fractal condition well, and the fractal dimension of particle size distribution is an effective method for describing the particle crushing state of saturated crushed san
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