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Journal articles on the topic 'Crushers'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Chuikov, Valery E., Vladimir V. Konovalov, Marina V. Dontsova, and Svetlana S. Petrova. "JUSTIFICATION OF A PROMISING FUNCTIONAL SCHEME OF A GRAIN CRUSHER." Bulletin Samara State Agricultural Academy 9, no. 2 (2024): 34–43. https://doi.org/10.55170/1997-3225-2024-9-2-34-43.

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The purpose of the research is to develop a promising functional scheme of the working process of a grain crusher and its general design scheme. The research methodology provides an analytical substantiation of the rational se-quence of operations of the crusher workflow. Analysis of the sequence of operations of working processes of exist-ing grain crushers made it possible to identify differences in the list and order of operations of working processes for different types of crushes. The general promising design and functional scheme of grain crushers provides for the presence of sections (z

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2

Wolny, S. "Dynamic Behaviour of a Vibrating Jaw Crusher for Disintegration of Hard Materials." Archives of Metallurgy and Materials 58, no. 3 (2013): 883–86. http://dx.doi.org/10.2478/amm-2013-0092.

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Abstract One of the trends in design solutions of crushers ensuring the crushing ratio of about 30 involves the application of the vibratory-impulse action to the material to be crushed. Crushers utilising these effects are referred to as vibratory crushers. During the vibratory crushing the material to be disintegrated is subjected to the action of fast changing shearing forces, which leads to the material being crushed either by applied impulses or by fatigue action, unlike conventional crushers where the structure of the material is damaged by the applied pressure. A dynamic analysis of the

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3

HICKEL, G. C., G. C. BOAVENTURA, R. A. SOUZA, et al. "Influence of crusher type in the shape of fine crushed aggregate grains." Revista IBRACON de Estruturas e Materiais 11, no. 4 (2018): 902–30. http://dx.doi.org/10.1590/s1983-41952018000400013.

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Abstract Quarries have invested in equipment to increase production and improve the quality of their products, such as vertical shaft impact crushers (VSI). This type of crusher works with autogenous comminution of the material to improve the shape of the coarse aggregates. However, there are few studies about the influence of crushers in the shape of fine aggregate grains. In this context, gneiss and granite fine crushed aggregates, produced in cone crushers and VSI were studied. Parameters such as coefficient of volumetric shape, aspect ratio, and circularity were used to compare these aggre

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4

Ivanov, N. M., A. M. Levin, and I. Ya Fedorenko. "Dynamic features of vibrating jaw crusher of feed grain." Siberian Herald of Agricultural Science 54, no. 5 (2024): 105–12. http://dx.doi.org/10.26898/0370-8799-2024-5-11.

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The vibration method of feed grain crusher can be realized in various designs of crushers, but preference should be given to dynamic machine schemes, as such systems contribute to energy saving and increase the reliability of the whole structure. The analysis of the totality of information on vibrating crushers developed in various branches of economy allowed formulating the main requirements to the dynamic systems of these machines. These include the following: providing vibration of points of the working bodies according to certain laws; implementation of self-synchronization of vibro-excite

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Zhao, Li Mei, Lun Jun Chen, Da Bin Zhang, and Yi Li. "Modelling and Simulation of Particle Breakage in Jaw Crushers." Applied Mechanics and Materials 130-134 (October 2011): 1148–51. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.1148.

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Jaw crushers are commonly-used machines in aggregate production. The aim of the research is to present a model which is able to predict particle size distribution in jaw crushers and to provide a new method for effectively controlling the quality of crushed product. The object of study was a domestic PEF 400×600 jaw crusher. A performance model was developed based on the standard mass balance formulation and chamber dividing results. Some important parameters that influence the particle output of the crushers were taken into account in the model. The variations of the particle size distributio

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Kazak, Iryna, and Dmytro Sidorov. "Improving the design of a jaw shutter to increase the efficiency of material crushing." Industrial and technology systems 2, no. 1(76) (2024): 16–21. http://dx.doi.org/10.15587/2706-5448.2024.302148.

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The object of research is the design of a jaw crusher for crushing limestone for the production of silicate bricks. The article is devoted to the study of the problem of reducing the efficiency of material crushing in a jaw crusher. The efficiency of crushing materials in jaw crushers ensures the quality of manufacturing bricks, etc. Therefore, this work is aimed at choosing a way to improve the design of the jaw crusher to increase the efficiency of material crushing. The article defines the classification of jaw crushers, their advantages and disadvantages, describes the principle of operati

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7

Hou, Jian Qiang, Rui Hua Wang, and Zhi Yuan Lu. "The Design of Control System about Crushers Based on PLC." Advanced Materials Research 718-720 (July 2013): 1510–15. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.1510.

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With Programmable Logical Controller (PLC) as the control core, this paper designed automation and control system of industrial. Protection and control of crusher stall is the main contents of this article. According to the control requirements of the industrial production process, stall control system of crusher was designed. This system included the liquid level monitoring of lubricating System, crushers start, crushers speed monitoring, crushers speed transformation and protection design of crushers stall. Then we simulated the functions which the system can achieve, and got the monitoring

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Nikitin, A. G., A. R. Fastykovskii, M. E. Shabunov, N. M. Kurochkin, and I. A. Bazhenov. "Prospects for energy-saving methods of crushing brittle materials." Izvestiya. Ferrous Metallurgy 64, no. 6 (2021): 442–46. http://dx.doi.org/10.17073/0368-0797-2021-6-442-446.

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Crushing machines are part of the charge departments of blast-furnace and steel-making shops of metallurgical enterprises. One of the main indicator of the crushing process is its energy efficiency. It is determined by the mass of crushed material when consuming a unit of electricity. The article considers various methods of crushing brittle materials and the design of crushing machines for their implementation. The analysis of the crushers has shown that impact crushers are the most energy-efficient. However, due to a significant drawback (the yield of a suitable product is very small), they

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9

Laciak, Marek, and Marian Šofranko. "Optimization of Device Selection in Design of Technological Lines for the Aggregates Production." Applied Mechanics and Materials 611 (August 2014): 387–94. http://dx.doi.org/10.4028/www.scientific.net/amm.611.387.

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This paper describes in the introduction part basic information concerning selection of device of technological line for the aggregates production. It is mostly focused on crushers, which during the crushing have main influence on the outer characteristics of aggregate. Correct functionality of crushers in the process of production of aggregate is crucial and relies on the selection of right mechanical influence on pieces of aggregate during crushing while respecting characteristics of crushed rocks and parameters of chosen crusher. Because of this there are written basic principles of mechani

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Akobirova, Lola, Karim Gafurov, Jura Jumayev, Firuza Kuldasheva, and Doniyor Xikmatov. "Experimental study of crushing process of the crushed stone." E3S Web of Conferences 264 (2021): 04093. http://dx.doi.org/10.1051/e3sconf/202126404093.

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Currently, crushers operating in a central impact manner have become widely used, which has several advantages over roller, cone, and cheek crushers. The present work shows the device and principle of a laboratory centrifugal vertical impact crusher for studying the process of crushing local gravel to obtain crushed stone with dimensions of 5-20 mm. The main influencing factors for the process are the average size of the incoming raw materials, the rotation speed of the crusher rotor, and the distance between the accelerator and the annular platform. The output parameter is the concentration o

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Yang, Guang Yan, and Bao Jun Wang. "Cone Crusher Simulation Based on PFC^3D." Advanced Materials Research 889-890 (February 2014): 82–85. http://dx.doi.org/10.4028/www.scientific.net/amr.889-890.82.

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As the movement condition of the material in crushers and crushing process is very complex, it is hard to measure and observation directly or indirectly. It helps a lot for analyzing of the raw material and crusher interaction, optimizing design crusher, analyzing of the law crushing to analyze the crushing process of the material in the crushers. Therefore, the article explores the use of PFC3Dprogram to simulate the process of cone crushers crushing the material. It analyses the feasibility of using PFC3Dprogram to simulate the crushing process. It does the kinematics simulation of the mater

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12

Zhang, Zilong, Tingzhi Ren, and Jiayuan Cheng. "Constant Wear Criterion for Optimization of the Crushing Chamber of Cone Crushers." Minerals 12, no. 7 (2022): 807. http://dx.doi.org/10.3390/min12070807.

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The crushing chamber is the core component of a cone crusher, consisting of mantle and concave parts. Reducing the impact of crushing chamber wear on the performance of cone crushers and the quality of crushed products while extending the service life of the mantle and concave has become a significant research challenge. The impact of the compression ratio and particle size distribution coefficient on the particle crushing pressure is investigated here in order to establish the particle pressure model. The effect of the normal and tangential components of particle crushing pressure on the wear

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13

ABRAMKIN, Nikolay, Pavel MANSUROV, Alexandra KUZINA, and Yuri LEVKIN. "Justification of the roll crusher calculation parameters, taking into account the use of spar screen surface." Sustainable Development of Mountain Territories 15, no. 2 (2023): 473–81. http://dx.doi.org/10.21177/1998-4502-2023-15-2-473-481.

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Introduction. The paper considers a method for calculating the parameters of a roller crusher developed on the basis of established analytical dependencies: the theoretical and technical productivity of spalt sieves from the share of the total volume of rock mass, as well as the productivity of a roller crusher when overlapping spalt sieves with metal sheets. Purpose of the work: development of a methodology for calculating the parameters of a roller crusher. Methods and Materials. To achieve the goal of developing a methodology for calculating the parameters of a roller crusher, a search and

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Gazaleeva, Galina I., and Konstantin Bulatov. "Choosing special methods of selective disintegration and schemes for complex refractory ore." Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal 1 (February 15, 2022): 45–57. http://dx.doi.org/10.21440/0536-1028-2022-1-45-57.

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Introduction. The article highlights a new procedure of choosing special methods of disintegration and schemes for complex refractory ore and develops an integrated approach and criteria to comparing different types of crushers and screens, namely, reduction ratio, grinding degree, slime formation degree, and a new selectivity criterion. Research aims to study a new method and derive an equation to determine the crushing in the layer force and a new selectivity criterion. Research methods. The new methods were tested by comparing Otboynoye deposit tantalum ore, Vishnevogorsky deposit niobium o

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Ali, Ali, and Mohd Prieska. "IMPROVEMENT PRODUKSI CRUSHER DENGAN METODE DOUBLE DUMP CRUSHER FC01 DAN FC02 PT. MIFA BERSAUDARA." Prosiding Temu Profesi Tahunan PERHAPI 1, no. 1 (2020): 39–48. http://dx.doi.org/10.36986/ptptp.v1i1.48.

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ABSTRAK PT. Mifa Bersaudara sesuai dengan rencana produksi pada tahun 2018 akan melakukan coal sales sebesar 5 Juta Ton. Dengan target sales yang besar tentunya di butuhkan support yang besar dari unit-unit produksi. Maka dari itu unit operasional coal getting yang menggunakan OHT pada tahun 2017 diganti menjadi 30T class dengan jumlah yang lebih banyak. Akibat peningkatan produksi pada tahun 2018, perlu dilakukan improvement pada crusher FC01 dan FC02. Crusher FC01 dengan kapasitas produksi 750 tph dengan actual average year to date pada tahun 2017 hanya sebesar 342 tph dan FC02 dengan kapasi

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16

S, PUGALENDHI, PANDIARAJAN T, and DEVADAS C.T. "PERFORMANCE EVALUATION OF A FOUR ROLLER SUGARCANE CRUSHER." Madras Agricultural Journal 85, December (1998): 529–31. http://dx.doi.org/10.29321/maj.10.a00790.

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At present juice recovery from sugarcane using conventional power crushers is about 60 percent. Nearly 10-20 per cent of juice goes as waste along with bagasse. For increased juice recovery, an improved four roller crusher has been developed. It consisted of rollers, gear train, feed chute, bagasse carrier, juice collection tray and juice outlet. The performance of this crusher over three roller vertical and horizontal crusherr was evaluated and compared in terms of capacity, energy consumption and juice extraction efficiency. Juice extraction efficiency was found to be 11 and 8 per cent highe

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17

Abilzhanuly T., Abilzhanov D.T., Smagulov T.A., and Orazakhyn D.N. "RESULTS OF TESTS ON THE STALK AND GRAIN CRUSHER OF A SMALL FODDER SHOP." SERIES OF AGRICULTURAL SCIENCES 55, no. 1 (2020): 25–30. http://dx.doi.org/10.32014/2020.2224-526x.4.

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It is known that in Kazakhstan, 70 ... 80 percent of peasant farms have no more than 100 head of cattle and 500 head of sheep. To fatten these farms and to prepare a complete ration with combined feed in dairy farms, a distributer-mixer with a box with a capacity of 3 ... 5 m3 is needed. Since the equipment of these distributer-mixer machines with stalk and grain crushers ensures that it chops fodder itself and loads them onto a hay rye and grain warehouse of a mobile fodder shop, in the process of preparing a full ration of a combined feed, the number of operations will be reduced by 1.67 tim

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18

Mokgomola, Tebogo, Getrude Marape, and Rabelani Mariba. "Optimizing Dense Medium Separation Pre-Concentration by Comparative Evaluation of High-Pressure Grinding Rolls vs. Conventional Crushing." Minerals 15, no. 4 (2025): 422. https://doi.org/10.3390/min15040422.

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This paper investigated pre-concentration of a low-grade Upper Group 2 (UG2) ore to assess the possibility of rejecting waste at a typical discard Platinum Group Metals (PGMs) grade of <0.4 g/t at mass rejection to floats greater than 16% by comparing feed prepared by High pressure grinding rolls (HPGR) to Conventional crushers (Cone crushers). Heavy Liquid Separation (HLS) was conducted as a benchmark test to Dense Medium Separation (DMS) to determine the expected grade, recovery, and mass yield for various size classes and crusher. The comparison between fine size classes −9.5 + 1.18 mm a

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Dziubek, Mateusz, and Dominika Grygier. "THE EFFECT OF THE WEAR DEGREE OF WORKING ELEMENTS IN A JAW CRUSHER ON THE OPERATING EFFECTIVENESS OF A TWO-STAGE GRANITE GRINDING SYSTEM." Tribologia 295, no. 1 (2021): 7–14. http://dx.doi.org/10.5604/01.3001.0015.4894.

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The article presents an analysis of the influence of the wear degree of working elements in a jaw crusher on the crushing process and on the quality of the crushed material. The evaluation of the operating effectiveness of a technological system comprising two crushers was based on the quality indicator of the crushed product, i.e. on the share of irregular grains for a fraction with a mean grain size of 31.5/63 mm at each of the two stages of crushing. The wear degree was monitored by performing microscopic observations of the plates in the fixed jaw and by measuring the critical geometric ch

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20

Tytov, Oleksandr, Kateryna Babii, and Vitaliі Sukharіev. "Technique for calculation of parameters of the wave profiled roll crusher for obtaining the cubic shaped products." Geo-Technical mechanics, no. 163 (2022): 183–92. http://dx.doi.org/10.15407/geotm2022.163.183.

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The purpose of this work is to develop a technique for calculating the crusher with wave profiled rolls based on analytical and experimental data on hard rocks processing in crushers of this type. Information on the expediency of using cubic-shaped products as fillers for concrete is given. Attention is focused on the advantages of this approach. The main types of equipment capable of producing the stone products with minimum content of lamellar pieces are analyzed. The choice of crushers with wave profile of rolls for processing of narrow-sized crushed stone fractions as combination of high e

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Quartey, Gideon, Anthony Simons, and Mutalubi Aremu Akintunde. "The Impact of Passive Displacement Fixed Jaw Design on Liner Wear in Single Toggle Jaw Crushers." European Journal of Applied Science, Engineering and Technology 3, no. 3 (2025): 83–91. https://doi.org/10.59324/ejaset.2025.3(3).08.

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Single toggle jaw crushers are widely used in mining and aggregate industries, but they suffer from significant liner wear, leading to increased maintenance costs and downtime. This research investigates the impact of a novel single toggle jaw crusher design with a passive displacement fixed jaw on liner wear. The investigation was done by carrying out a comparative analysis between the conventional jaw crusher design and the new jaw crusher design. During the evaluation of the conventional and new crusher designs, the liners were initially weighed with an electronic scale of 20 g sensitivity,

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Quartey, Gideon, Anthony Simons, and Mutalubi Aremu Akintunde. "The Impact of Passive Displacement Fixed Jaw Design on Liner Wear in Single Toggle Jaw Crushers." European Journal of Applied Science, Engineering and Technology 3, no. 3 (2025): 83–91. https://doi.org/10.59324/ejaset.2025.3(3).08.

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Single toggle jaw crushers are widely used in mining and aggregate industries, but they suffer from significant liner wear, leading to increased maintenance costs and downtime. This research investigates the impact of a novel single toggle jaw crusher design with a passive displacement fixed jaw on liner wear. The investigation was done by carrying out a comparative analysis between the conventional jaw crusher design and the new jaw crusher design. During the evaluation of the conventional and new crusher designs, the liners were initially weighed with an electronic scale of 20 g sensitivity,

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Sakharov, D. F., and А. V. Vitushkin. "POWER ANALYSIS OF THE CRUSHING PROCESS IN A CONE CRUSHER." Izvestiya Visshikh Uchebnykh Zavedenii. Chernaya Metallurgiya = Izvestiya. Ferrous Metallurgy 61, no. 12 (2019): 980–86. http://dx.doi.org/10.17073/0368-0797-2018-12-980-986.

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The literature devoted to cone crushers design and research of its crushing process is generally based on empirical observations, therefore it is commonly considered that material is crushed under the influence of squeezing forces exclusively. Above mentioned liter ature, in turn, theoretical base forms for crushing units design. Based on common understanding, variety of designs of cone crushing machines existing today is characterized by integrity of principles of their work. Majority of theoretical works devoted to cone crushers are focused on such characteristics as efficiency, extent of cr

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Bulatov, S. Yu, N. N. Pushkarenko, P. A. Savinyh, A. G. Sergeev, and A. Marczuk. "Effect of the height of grain layer in the feed hopper on pressure created by hammers in the grinding chamber." IOP Conference Series: Earth and Environmental Science 1112, no. 1 (2022): 012036. http://dx.doi.org/10.1088/1755-1315/1112/1/012036.

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Abstract Hammer crushers are used for grinding grain due to the simplicity of their designs and reliability. When crusher rotor rotates in the grinding chamber, air flows are created, which, due to the forces of air aerodynamic resistance, pick up particles of the crushed raw materials. The hammer crusher with an increased separating surface, where the working chamber is formed by two end sieves and one peripheral sieve, was developed in the laboratory of SBEI HE Nizhniy Novgorod State Engineering and Economic University. Hammers shaped as longitudinally bent steel plates straight hammers and

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Lipatov, A. G., V. O. Furin, A. A. Kholodkov, and A. G. Zhuravlev. "Innovative solutions to improve the efficiency of coarse crushing in iron ore mining and processing plants." Mining Industry Journal (Gornay Promishlennost), no. 3/2023 (July 1, 2023): 93–100. http://dx.doi.org/10.30686/1609-9192-2023-3-93-100.

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The need to increase the capacity of crushing and processing facilities of mining and concentrating operations plants that develop deposits of hard and abrasive ores, most of which are concentrated within the Kursk Magnetic Anomaly, required solving a number of technological challenges in the crushing process. For this purpose, requirements were formulated as a result of analyzing characteristics of coarse, medium and fine ore crushing, based on which Uralmashplant JSC executed research and development activities aimed at upgrading the KKD-1500/180-2P crushers. As the result of this upgrade, t

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SKYBA, МYKOLA, OLEKSANDR MISIATS, A. POLISHUK, VOLODYMYR MISIATS, and MYKOLA RUBANKA. "SYSTEM OF ADAPTIVE FREQUENCY CONTROL OF SPEED OF ROTATION OF THE ASYNCHRONOUS THREE-PHASE ELECTRIC MOTOR OF THE ROTOR CRUSHER DRIVE." HERALD OF KHMELNYTSKYI NATIONAL UNIVERSITY 295, no. 2 (2021): 139–46. http://dx.doi.org/10.31891/2307-5732-2021-295-2-139-146.

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The analysis of a design and the principle of work of modern rotary crushers for crushing of waste of polymeric materials is carried out. Ways of possible improvement of the existing equipment for crushing of waste of polymeric materials are defined. The principles of automation of the rotary crusher drive are formulated. The structural scheme of the frequency control system of the rotor crusher drive is developed. The analysis of operation of asynchronous three – phase motors at frequency control of speed of rotation is carried out. The mechanical characteristics of the electric drive of the

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Yarovoy, Mikhail, Roman Druzhinin, and Andrey Kornev. "Theoretical foundations for determining the energy of movement of the annular layer in a hammer crusher." АгроЭкоИнфо 2, no. 50 (2022): 22. http://dx.doi.org/10.51419/202122222.

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In the course of a comprehensive analysis of the theory of the working process of hammer crushers, the insufficiency of theoretical studies of the processes occurring in the crushing chamber was revealed. One of the areas of theoretical research considered in this article is the determination of the displacement energy of the annular layer in a hammer crusher. Keywords: HAMMER CRUSHERS, ANNULAR LAYER, PASSABLE PARTICLES, ENERGY, SPEED, HAMMER, ROTOR, WORK OF DEFORMATION, POWER

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Kayembe-Kitenge, Tony, Irene Kabange Umba, Paul Musa Obadia, et al. "Respiratory Health and Urinary Trace Metals among Artisanal Stone-Crushers: A Cross-Sectional Study in Lubumbashi, DR Congo." International Journal of Environmental Research and Public Health 17, no. 24 (2020): 9384. http://dx.doi.org/10.3390/ijerph17249384.

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Background: Thousands of artisanal workers are exposed to mineral dusts from various origins in the African Copperbelt. We determined the prevalence of respiratory symptoms, pulmonary function, and urinary metals among artisanal stone-crushers in Lubumbashi. Methods: We conducted a cross-sectional study of 48 male artisanal stone-crushers and 50 male taxi-drivers using a standardized questionnaire and spirometry. Concentrations of trace metals were measured by Inductively Coupled - Plasma Mass Spectrometry (ICP-MS) in urine spot samples. Results: Urinary Co, Ni, As, and Se were higher in stone

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Soldatenko, L., A. Shipko, and I. Shipko. "DIRECTION OF IMPROVEMENT OF THE WORKING BODIES OF HAMMER." Grain Products and Mixed Fodder’s 20, no. 2 (2020): 41–47. http://dx.doi.org/10.15673/gpmf.v20i2.1766.

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Among the many types of grinding machines used in enterprises of grain processing, food and other industries, an important place belongs to hammer crushers. This is explained by the possibility of their use for grinding materials of various origins (plant, animal, mineral, as well as various wastes of food production), various particle size distribution (lumpy, briquetted, granular, fibrous), having different strength properties (hard, medium hard, soft, brittle, viscous), capable of being crushed once or requiring double sequential crushing. In addition, hammer crushers are characterized by r

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Hubert, Julien, Zengfeng Zhao, Frédéric Michel, and Luc Courard. "Effect of Crushing Method on the Properties of Produced Recycled Concrete Aggregates." Buildings 13, no. 9 (2023): 2217. http://dx.doi.org/10.3390/buildings13092217.

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Construction and Demolition Waste (C&DW) is generated around the world and its quantity will increase in the future. Recycling has become the favored method of dealing with concrete waste but, to avoid its downcycling, it is important to develop a recycling process which is able to produce high-grade recycled concrete aggregates (RCA). To that end, studying the influence of the production process on the properties of RCA can prove to be a crucial step toward a more circular construction industry. In this study, the influence of the crushing method is investigated. Samples of five laborator

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Zuñiga, J. M., and J. L. Mantari. "A computational methodology to calculate the required power in disc crushers." Journal of Computational Design and Engineering 4, no. 1 (2016): 14–20. http://dx.doi.org/10.1016/j.jcde.2016.09.003.

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Abstract This study aims to contribute to the estimation of power consumption in a disintegration process in disc crushers (fixed and mobile). The study covers the dynamic analysis of forces acting on the particles and the mobile disc. A detailed analysis of the resultant force on the particles was performed. Finally, the consumed power is calculated with the forces acting on the mobile disc. The calculated power is a key aspect in the design of disc crusher machines. Highlights Estimation of power consumption in a disintegration process in disc crushers. Dynamic analysis of forces acting on t

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Lee, Su Vin, Tammy Aplin, Aida Sefidani Forough, and Kathryn J. Steadman. "Perceived Usability of Tablet Crushers: Comparison of Devices by People with and without Limited Hand Functions." Pharmaceutics 15, no. 2 (2023): 517. http://dx.doi.org/10.3390/pharmaceutics15020517.

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Tablet crushing is a common practice used by patients and their carers, mainly to facilitate swallowing. Various tablet-crushing devices with different designs are currently available on the market. This study aimed to compare the usability of different tablet-crushing devices in people with and without limited hand functions. The hand function of 100 adults recruited from the general community (40 of whom self-reported a limited hand function) was assessed using the hand and finger function subscale of the Arthritis Impact Measurement Scale version 2. The hand strength was measured using a dy

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Malanchuk, Z. R., A. O. Khrystyuk, S. Ye Stets, V. V. Semeniuk, and L. O. Malanchuk. "Substantiation of research results on energy efficiency of basalt crushing." Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 6 (December 25, 2022): 41–46. http://dx.doi.org/10.33271/nvngu/2022-6/041.

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Purpose. To experimentally determine the main design and operational parameters of the influence of rock mass properties on the Roller Crusher performance when processing basalt rock mass. Methodology. The crushing and grinding of basalts are studied by the methods of mathematical statistics in order to identify the results obtained and determine the dependences of technological parameters on the mechanical impact factors. Experimental studies are carried out on the example of basalts from the Rafalivskyi quarry in the Rivne region. Findings. It has been revealed that the elemental composition

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Cobb, Kristin. "Bone Crushers." Science News 162, no. 4 (2002): 51. http://dx.doi.org/10.2307/4013689.

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C, Diana. "Bone Crushers." Scientific American 319, no. 3 (2018): 12. http://dx.doi.org/10.1038/scientificamerican0918-12.

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Antonio, Cordova, Zuñiga Juan Manuel, Mantari Jose Luis, and Alvarez Helard Henry. "Estimation of the power consumed in disc crushers using a static analysis." Research in Agricultural Engineering 63, No. 4 (2017): 152–59. http://dx.doi.org/10.17221/68/2016-rae.

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The classic forms of disc crusher disintegration simulations are faced using methods that associate their analysis to the stochastic nature of the process. This paper introduces a method that can solve the disc crusher disintegration simulation with a partially deterministic manner. The paper presents the result of the thrust force and the consumed power of disc crushers which is estimated by a static analysis of forces that interact within the discs (fixed and mobile). This methodology uses the calculation of forces and directions involved in the process of particle fragmentation. The fragmen

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Zhang, Zilong, Tingzhi Ren, Jiayuan Cheng, and Jianxu Zhu. "An Improved Capacity Model of the Cone Crushers Based on the Motion Characteristics of Particles Considering the Influence of the Spatial Compound Motion of the Mantle." Minerals 12, no. 2 (2022): 235. http://dx.doi.org/10.3390/min12020235.

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Capacity is the important indicator of the cone crushers, which is determined by the motion characteristics of particles. The spatial compound motion of the mantle, which rotates both around the central axis of the cone crusher and its central axis, was analyzed to develop motion characteristic equations of particles. The velocity distribution of particles with different motion characteristics was determined by solving the motion characteristic equations of particles using the coordinate system transformation matrix. An improved capacity model of the cone crushers based on the motion character

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Morozov, V., T. Nikolaeva, and I. Churelchuluun. "INVESTIGATION AND OPTIMIZATION OF A CLOSED CIRCUIT CRUSHING OF COPPERMOLYBDENUM ORE." Mining science and technology, no. 3 (December 31, 2018): 35–44. http://dx.doi.org/10.17073/2500-0632-2018-3-35-44.

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To control the processes of ore treatment proposed adapted to the conditions of a closed cycle crushing-screening criterion "output productive class -2 + 10 mm", reflecting the effectiveness of all processes. The dependence of the outputs of the individual classes of ore and the proposed optimization criterion parameters of the grinding process shows their relationship with the energy intensity of the process. It is shown that the increase in the load on the screen causes a decrease in the screening efficiency and an increase in the mass fraction of class +2 mm in the circulating ore. Excessiv

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Haddad, Jamil, Fadi Alfaqs, Tareq Al-quraan, and Ibrahim I. Ikhries. "Investigation of vibrating jaw crusher experimental variables." Mining of Mineral Deposits 17, no. 3 (2023): 49–55. http://dx.doi.org/10.33271/mining17.03.049.

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Purpose. Current research focuses on studying experimentally various parameters affecting the particle size produced in a vibrating jaw crusher developed and implemented at Al-Balqa Applied University. The main purpose is to find the optimal conditions at which the jaw crusher under study works. Methods. The jaw crusher angle and rotating mass type are considered to study all particle sizes and reduction ratios obtained for three different motor operation speeds: 1500, 2000, and 2500 rpm. Coarse aggregate weighing 900 g with 26 mm particle size is fed into the jaw crusher, which produces sever

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Sakharov, D. F., and A. V. Vitushkin. "Energy efficiency of a cone crusher with stops." Izvestiya. Ferrous Metallurgy 65, no. 10 (2022): 733–39. http://dx.doi.org/10.17073/0368-0797-2022-10-733-739.

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Metallurgical, construction and mining industries are based on the process of grinding various materials. The main method of primary preparation of raw materials is crushing of the extracted ore. Up to 4 % of the world’s electricity production is spent annually on crushing rocks to obtain the necessary fraction of material, and for a single mine, the share of energy consumption for crushing can reach 50 % of the annual volume. In addition to spending electricity directly on rocks destruction, some of it is spent on creating a power reserve for a crushing machine (hereinafter referred to as a c

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RABAT, O. Zh, and A. N. SALMANOVA. "EXPERIMENTAL RESEARCH OF CHARACTERISTICS OF CRUSHERS WITH CYCLOIDAL MOTION OF WORKING BODIES." Periódico Tchê Química 15, no. 30 (2018): 627–39. http://dx.doi.org/10.52571/ptq.v15.n30.2018.631_periodico30_pgs_627_639.pdf.

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The use of different crushers to obtain the required size of the stone material. This work presents experimental studies of the characteristics of a crusher with a complex movement of working organs. The objectives of the study are, a sieve analysis of the obtained product (crushed stone) and the determination of the optimal speed of the working bodies (rolls) to obtain high-quality cubic shape crushed stone. In the experiment, the raw material is fed into the working space (into the crushing chamber) through the hopper and moves by a flat flow between the rollers. The edges of the rolls roll

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SHADRUNOVA, I. V., I. M. KUTLUBAEV, O. E. GORLOVA, and E. V. KOLODEZHNAYA. "OPTIMIZATION OF THE PARAMETERS OF THE ROLLER CRUSHER FOR PROCESSING MAN-MADE RA W MATERIALS." News of the Tula state university. Sciences of Earth 3, no. 1 (2024): 175–91. http://dx.doi.org/10.46689/2218-5194-2024-3-1-175-191.

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The advantages of using roller crushers in technological schemes of metallurgical slas processins are considered. The factors determinins the efficiency of slas disintesration in crushing processes are given and the requirements for technological devices from the point of view of operational reliability are formulated. A diagram of the force interaction of a piece of slag in the crushing chamber of a roller mill is presented. The mechanism of destruction of slag pieces of increased size and strength due to an increase in crushing force when installing an additional load is substantiated. The a

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Mishchuk, Yevhen. "Analysis of roller crusher parameters for crushing process automation." Gіrnichі, budіvelnі, dorozhnі ta melіorativnі mashini, no. 105 (May 8, 2025): 85–90. https://doi.org/10.32347/gbdmm.2025.105.0503.

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Due to the significant energy costs in the process of manufacturing building materials, the need to reduce energy costs has become critical. One of the energy-consuming processes in crushing machines is the process of material destruction in the crushing chamber. Determining the energy costs that are incurred for material destruction, taking into account the physical properties of the material and creating conditions for the maximum rational application of loads in the crushing chamber is a pressing task. The study of the energy costs of a crushing machine is based on determining a number of p

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Yang, Daolong, Yanxiang Wang, Bangsheng Xing, Yanting Yu, Yuntao Wang, and Youtao Xia. "Recent Patents on Roll Crushing Mills for Selective Crushing of Coal and Gangue." Recent Patents on Mechanical Engineering 13, no. 1 (2020): 2–12. http://dx.doi.org/10.2174/2212797613666200109112255.

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Background: Gangue is the concomitant product of coal mining. The traditional approach for gangue treatment is to transport it from underground to ground level to accumulate and form gangue hills. Objective: On the basis of summarizing previous research results, this paper introduces the hydraulic roller crusher and the electric machine built-in coal gangue roller crusher, which avoids the complex transmission problems caused by the movement of the central axis when the roller crusher is allowed to roll. Methods: The hydraulic counter-roll crusher directly separates large pieces of coal and un

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Zhangfeng, Zhao, Li Yanbiao, Li Wenhao, Zhan Xian, Zhu Xingliang, and Zhong Jiang. "Research on the biaxial compound pendulum jaw crusher based on seven-bar mechanism." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 230, no. 11 (2015): 1876–89. http://dx.doi.org/10.1177/0954406215583889.

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Traditional compound pendulum jaw crushers have many disadvantages such as low efficiency and uneven broken materials. This paper proposes a new biaxial compound pendulum jaw crusher to solve these problems. This paper presents the kinematic and dynamic performance of the new crushers, introduces its structure and layout features, derives the equations involving position, velocity, acceleration and kinetics, describes a workspace of the jaw crusher, analyzes the travel characteristic values and crushing force of movable jaw plates, and optimizes its structural and motion parameters through a m

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SABIROV, B. M. "EXPERIMENTAL STUDY OF GRAIN’S CROPS SEED DESTRUCTION AT A GRAIN CRUSHER OF ROTARY TYPE CRUSHING." Техника и технологии в животноводстве 15, no. 1 (2025): 58–62. https://doi.org/10.22314/27132064-2025-15-1-58.

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Grain grinding is one of the important and main methods of grain processing. There in agricultural enterprises, it is advisable small crush equipment, so called crushers using. These devices by low metal and energy consumption, design’s simplicity, mobility and cost-effectiveness are characterized. The purpose of this work is the created grain crusher’s efficiency and effectiveness in comparison with its counterpart the «Harvest» UD-170 grain crusher evaluating. A small grain crusher with a knife for this purpose was designed. Its distinctive feature is an incised shell, whose holes in the for

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Piddubnyi, Mykyta, Mykola Sukhorutchenko, Hanna Zahladkina, and Svetlana Krivileva. "IMPGREENING AND MODERNIZATION OF EQUIPMENT FOR PROCESSING CONSTRUCTION WASTE INTO SECONDARY CRUSHED STONE." Bulletin of the National Technical University "KhPI". Series: Chemistry, Chemical Technology and Ecology, no. 2(12) (November 22, 2024): 76–80. http://dx.doi.org/10.20998/2079-0821.2024.02.13.

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The article addresses the pressing issue of processing reinforced concrete structures that have resulted from the destruction of buildings in Ukraine. Accumulating in significant volumes, reinforced concrete debris holds substantial potential for further use but requires efficient processing methods. The main focus is on the greening of equipment and modernization of jaw crushers to ensure their capability to effectively crush this type of waste, which is a critical task in the context of sustainable development and the implementation of environmentally safe technologies in the construction in

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Polushyna, M. V., T. V. Moskalova, and V. F. Hankevich. "Static force analysis of a single toggle jaw crusher." Geo-Technical mechanics, no. 152 (2020): 254–62. http://dx.doi.org/10.15407/geotm2020.152.254.

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There are various recommendations in domestic and foreign literature regarding the law of distribution of the crushing load along the swing plate of jaw crushers: even, linear or nonlinear. The method of load distribution along the swing jaw affects the resultant crushing force, its application point and, therefore, the forces subjected to the jaw crusher links. A feature of a single toggle jaw crusher is the strong force exerted on the eccentric shaft since the crushing forces are directly transferred to the shaft. Therefore, it is important to determine the worst design case in order to calc

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Zahid, Muhammad Zubair, Shahid Ikramullah Butt, Tauqeer Iqbal, Syed Zohaib Ejaz, and Zhang Faping. "Nonlinear Material Behavior Analysis under High Compression Pressure in Dynamic Conditions." International Journal of Aerospace Engineering 2017 (2017): 1–15. http://dx.doi.org/10.1155/2017/3616932.

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Gun chamber pressure is an important parameter in proofing of ammunition to ensure safety and reliability. It can be measured using copper crushers or piezoelectric sensor. Pressure calculations in copper crusher method are based on linear plastic deformation of copper after firing. However, crusher pressure deformation at high pressures deviates from the corresponding values measured by piezoelectric pressure transducers due to strain rate dependence of copper. The nonlinear deformation rate of copper at high pressure measurements causes actual readings from copper crusher gauge to deviate fr

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Sabirov, Bulat, Bulat Ziganshin, Andrey Dmitriev, Insaf Nafikov, and Razilya Sabirova. "STUDY OF A DEVICE FOR CRUSHING GRAIN." Vestnik of Kazan State Agrarian University 18, no. 1 (2023): 73–77. http://dx.doi.org/10.12737/2073-0462-2023-73-77.

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The quality of feed produced for cattle is one of the main factors affecting the efficiency of its maintenance. The quality of the resulting feed largely depends on the design features of the equipment, in particular crushers. The purpose of the study is to evaluate the effectiveness of the developed device for crushing grain, in comparison with existing crushers (UD-200). An experimental plant with paddle disks has been developed for grinding grain. Its distinguishing feature is that two disks with a diameter of 142 and 200 mm with blades rotate in the working chamber. The device allows proce

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