Jaw Crusher Sciencedirect
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Optimal energy management for a jaw crushing process in
Search ScienceDirect. Energy. Volume 68, 15 April 2014, Pages 337-348. Optimal energy management for a jaw crushing process in deep mines. ... model is referred to as a variable load-based optimal control with the feeder speed and closed-side setting of the jaw crusher as control variables. The second model is the optimal …
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Failure analysis of a crusher jaw
Weight of crusher jaw varies 50–5000 kg depending on the capacity of the crushing machine. For this study, the weight of each crusher jaw used was approximately 2 tons. Each crushing machine uses a pair of crusher jaws weighing a total of 4 tons.Estimated cost of manganese steel is about $2000 per tons.
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Optimal energy management for a jaw crushing process in
The former takes account of the jaw crushing energy model and optimally coordinates the feeder speed, closed-side setting and the working time of the jaw crusher for energy cost minimization. The optimal switching control optimally coordinates the on/off status and working time of the jaw crushing station to achieve the energy cost reduction ...
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Study on productivity of eccentric roll crusher based
Introduction. Currently, in the primary crushing stage, commonly used crushers include jaw crushers and gyratory crushers. Recently, FL (2022) has introduced an eccentric roll crusher, which has gained favor in the crushing industry due to its high efficiency and energy-saving advantages.
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Effects of compression and sliding on the wear and
Previously, also Lindqvist and Evertsson [10] have used force cells to assess the mechanical forces in jaw crusher wear tests. The jaw crusher they used was choke fed with quartzite of size 8–11 mm, resulting in compressive force peaks of 6–13 kN per crushing cycle. The measured average friction coefficient was about 0.3. The dual …
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Assessing the energy efficiency of a jaw crusher
A jaw crusher (see Fig. 2) is a comminution device designed to impart an impact on a rock particle placed between a fixed and a moving plate (jaw). The faces of …
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Liner wear in jaw crushers
Introduction. Jaw and cone crushers are commonly used in the mining and aggregates industry. Today, it is possible to predict the performance of a cone crusher, provided the geometry, crusher settings and the characteristics of the material fed into the crusher are known (Evertsson, 2000).
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Cone Crusher
The cone crusher is a modified gyratory crusher, and accordingly many of the same terms including gape, set, and throw, apply. The essential difference is that the shorter spindle of the cone crusher is not suspended, as in the gyratory, but is supported in a curved, universal bearing below the gyratory head or cone (Figure 6.8).Major suppliers of cone …
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Assessing the energy efficiency of a jaw crusher
With a lab-scale jaw crusher as a test case, an optimisation was made on how to operate it most energy-efficiently by using an evolutionary algorithm numerical method.
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Contamination-free preparation of geological samples
Search ScienceDirect. Journal of Geochemical Exploration. Volume 80, Issue 1, August 2003, Pages 19-24. ... Initial sample desegregation was best achieved in a Mn steel jaw crusher which contributed <0.1 ppb Pt and Au, <0.05 ppb Pd and Ru, <0.01 ppb Rh and <0.006 ppb Ir. Final milling must be performed in a ceramic mill (or …
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(PDF) Influence of jaw crusher parameters on the quality of …
A parameter study using a jaw crusher is designed to investigate the influence of feed gradation, feed rate, crusher setting and crusher speed on the crusher operation and the quality of the ...
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Primary Crusher
The three types of crushers most commonly used for crushing CDW materials are the jaw crusher, the impact crusher and the gyratory crusher (Figure 4.4). A jaw crusher consists of two plates, with one oscillating back and forth against the other at a fixed angle ( Figure 4.4(a) ) and it is the most widely used in primary crushing stages ( Behera ...
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New concepts in Jaw Crusher technology
Mmeral,~ Engineering. Vol. 3, No. I/2, pp. 67 74, 1990 0892-6875/90 $3.00 + 0.00 Printed in Great Britain @ 1990 Pergamon Press plc NEW CONCEPTS IN JAW CRUSHER TECHNOLOGY R. B. DeDIEMAR President, KUE-KEN Corporation, Oakland, CA, U.S.A. ABSTRACT New ideas in primary Jaw Crusher design - Design and …
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Influence of some rock strength properties on jaw crusher …
The influence of rock strength properties on Jaw Crusher performance was carried out to determine the effect of rock strength on crushing time and grain size distribution of the rocks. Investigation was conducted on four different rock samples namely marble, dolomite, limestone and granite which were representatively selected from …
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Discrete element modeling for predicting breakage
A laboratory jaw crusher was then modeled using the PFC3D software. A jaw crusher has two plates (jaws), one of which is fixed and the other, swinging open and closed, trapping and crushing material between the two surfaces. The feeding entrance is 10 cm wide, and its maximum discharge aperture is 2.5 cm (open status).
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(PDF) Influence of jaw crusher parameters on the …
A parameter study using a jaw crusher is designed to investigate the influence of feed gradation, feed rate, crusher setting and crusher speed on the crusher operation and the quality of...
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Effects of compression and sliding on the wear and
In the preliminary tests, the dual pivoted jaw crusher produced a wear environment with similar wear rates per amount of crushed rock as the laboratory jaw crusher used in the ASTM G 81-97a standard [11].The jaws of the DPJC with rectangular specimens of 75 mm×25 mm×10 mm are much smaller than a normal laboratory sized …
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Point load—deformation relationships and design of jaw …
Efforts to decrease energy consumed in crushing have lead to consideration of decreasing the weight of the swing plate of jaw crushers for easily crushed material. This paper presents the results of an investigation of the feasibility of using point load—deformation—failure (PDF) relationships along with interactive failure of rock ...
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Gyratory and Cone Crusher
Search ScienceDirect. Article preview. Abstract; Mineral Processing Design and Operations (Second Edition) An Introduction. 2016, Pages 153-168. Chapter 5 - Gyratory and Cone Crusher. ... A fundamental model of an industrial-scale jaw crusher. Minerals Engineering, Volume 105, 2017, pp. 69-78.
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A performance model for impact crushers
In this study, an analytical perspective is used to develop a fundamental model of a jaw crusher. Previously, jaw crushers were modelled in regard to certain aspects, for example, energy consumption (Legendre and Zevenhoven, 2014) or kinematics (Oduori et al., 2015). Approaches to date have been mainly property specific.
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Discrete element modeling for predicting breakage
PFC3D modeling of rock and jaw crusher. In order to examine the fracture behavior of the rocks and to determine the applied energy in a jaw crusher, a PFC3D model for the jaw crusher was developed. This model is based on single macro-particle simulation in a crusher, and multi-body interactions are ignored. The crushing process …
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Optimisation of the swinging jaw design for a single toggle …
Abstract. This study reports on the design optimisation of the swinging jaw crusher plate. Jaw crusher machines are used in the mining and construction industry …
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Concrete aggregates properties crushed by jaw and
Search ScienceDirect. Journal of Materials Research and Technology. Volume 8, Issue 1, January–March 2019, Pages 494-502. ... Macroscopic models for jaw crusher concrete waste have been previously investigated [12] demonstrating that a rupture zone is formed during load. In addition, fragmentation energy was associated …
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Monitoring jaw crushing parameters via vibration signal
The jaw stroke was 277 rpm and the minimum throw was about 2.2 mm. The vertical height of the crusher chamber was about 350 ram. The operating parameters were the feed rate to the crusher, the close side crusher setting and the material charge volume (the filling height of dolomite in the crusher chamber).
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Assessing the energy efficiency of a jaw crusher
With a lab-scale jaw crusher as a test case, an optimisation was made on how to operate it most energy-efficiently by using an evolutionary algorithm numerical method. For a selected optimised case an attempt was made to simulate the jaw crusher using a commercial software for discrete element modelling (DEM), after first simulating …
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Liberation characteristics of coal middlings comminuted by …
Full densimetric analyses indicate that mineral liberation of the product crushed by the jaw crusher is better than that by the ball mill at each fraction. For sizes of −0.125 mm + 0.074 mm and −0.074 mm, yields of the product with ash content 11% comminuted by jaw crusher are nearly 20% higher
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Study on productivity of eccentric roll crusher based
1. Introduction. Currently, in the primary crushing stage, commonly used crushers include jaw crushers and gyratory crushers. Recently, FL (2022) has introduced an eccentric roll crusher, which has gained favor in the crushing industry due to its high efficiency and energy-saving advantages. They are widely used for primary …
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Comparison of sample properties and leaching
Search ScienceDirect. Minerals Engineering. Volume 111, September 2017, Pages 140-147. Comparison of sample properties and leaching characteristics of gold ore from jaw crusher and HPGR. Author links open overlay panel Wanzhong Yin a, Yuan Tang a, Yingqiang Ma b, an Zuo b, Jin Yao a. Show more. Add to Mendeley.
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Roll Crushers
Search ScienceDirect. Article preview. Abstract; Mineral Processing Design and Operations (Second Edition) An Introduction. 2016, Pages 169-188. Chapter 6 - Roll Crushers. Author links open overlay panel. ... Jaw Crusher. Mineral Processing Design and Operations, 2016, pp. 123-152. Process Control.
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Liner wear in jaw crushers
1. Introduction. Jaw and cone crushers are commonly used in the mining and aggregates industry. Today, it is possible to predict the performance of a cone crusher, provided the geometry, crusher settings and the characteristics of the material fed into the crusher are known (Evertsson, 2000).The geometry of the crusher will change because …
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