jaw crusher sciencedirect

Optimal energy management for a jaw crushing process in

Abstract. This paper develops two optimal control models for the energy management of a mining crushing process based on jaw crushers. The performance index for both models is defined as the energy cost to be minimized by accounting for the time-of-use electricity tariff. The first model is referred to as a variable load-based optimal control ...

Dump Cars

The size of a jaw crusher is usually described by the gape and the width, expressed as gape × width. The common crusher types, sizes and their performance are summarised in Table 4.1 . Currently, the dimensions of the largest Blake-type jaw crusher in use are 1600 mm × 2514 mm with motor ratings of 250–300 kW.

Investigating the effects of feeding properties on rock breakage by jaw

As a general consideration, particle size distribution (PSD) of feed, crusher setting, and speed impinge on the efficiency of an industrial jaw crusher [20]. Of the crusher settings, the CSS adjustment may be a challenging issue and necessitate standard controls. It may also be time-consuming in practical applications.

Failure analysis of a crusher jaw

This article investigates the cause of incessant failure of locally produced crusher jaws from Hadfield steel. According to the recent marketing research data conducted by the foundry an estimate of 15,000 metric tons of this component is being consumed annually in the local market. This is valued at about $30 million.

Discrete element modeling for predicting breakage

3.. Single particle breakage analysisThe fracture process of a rock in a jaw crusher is a series of single particle crushing events with increasing number in a power law manner (Refahi et al., 2007).The product emerging out of the jaw crusher is just a collection of progeny particles from the crushing process of numerous single particles.

Liner wear in jaw crushers

Abstract. Wear in rock crushers causes great costs in the mining and aggregates industry. Change of the geometry of the crusher liners is a major reason for these costs. Being able to predict the geometry of a worn crusher will help designing the crusher liners for improved performance. A model for prediction of sliding wear was …

Energy consumption of a laboratory jaw crusher …

This paper presents the measurement and analysis of energy consumption of a laboratory jaw crusher during concrete recycling. A method was developed to …

Particle Size Reduction and Enlargement

The Stag jaw crusher, shown in Fig. 5.4, has a fixed jaw and a moving jaw pivoted at the top with the crushing faces formed of manganese steel. Because the maximum movement of the jaw is at the bottom, there is little tendency for the machine to clog, though some uncrushed material may fall through and have to be returned to the …

Point load—deformation relationships and design of jaw crusher …

Communications with manufacturers of jaw crushers [3, 7, 10, 15] have revealed that no consideration is currently given to forcedisplacement characteristics of the crushed rocks in the design of swing plates- Consideration of the two particles between the crusher plates in Fig- 1(b) reveals the importance of the point-load failure mechanism.

Point load—deformation relationships and design of jaw crusher …

Abstract. 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 ...

Concrete aggregates properties crushed by jaw and …

Concrete aggregates properties crushed by jaw and impact secondary crushing - ScienceDirect. Journal of Materials Research and Technology. Volume 8, …

A fundamental model of an industrial-scale jaw …

Jaw crushers are mainly used in operations where the volumes involved do not justify a gyratory crusher. The throughput of a jaw crusher ranges between 30 and …

Abrasion wear of austenitic manganese steels via jaw crusher …

The abrasion wear of the austenitic manganese steels with 12% Mn and 20% Mn was evaluated via jaw crusher tests. The abrasive mass (i.e. gravel) used per test was 100 kg and 14.3 mm of mean sized particles. The wear characterization was carried out with the evaluation of mass loss, hardness profile, worn surface roughness, and wear …

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 …

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 …

Assessing the energy efficiency of a jaw crusher

As an indirect jaw crushing parameter, the choke feeding intensity was also emphasized by Beloglazov and Ikonnikov [40]. As the rock comminution and energy efficiency can be defined as a function of area increment of particles in jaw crusher [41], the production of fines can be diminished by regulating the mf in the crushing chamber.

New cone crusher technology and developments in

Search ScienceDirect. Article preview. Abstract; Cited by (15) Minerals Engineering. Volume 3, Issues 1–2, 1990, Pages 83-103. ... Energy consumption of a laboratory jaw crusher during normal and high strength concrete recycling. 2023, Minerals Engineering. Show abstract.

Assessing the energy efficiency of a jaw crusher

The analysis will concentrate on jaw crushers as typical and widely used comminution process equipment. 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 the plates are made of hardened steel.

Gyratory and Cone Crusher

Abstract. Detail descriptions of designs are given of large gyratory crushers that are used as primary crushers to reduce the size of large run-of-mine ore pieces to acceptable sizes. Descriptions of secondary and tertiary cone crushers that usually follow gyratory crushers are also given in detail. The practical method of operation of each ...

Jaw Crusher

Jaw crushers, hammer crushers, roll crushers, hammer mills, disk mills, and ring mills are typically used in laboratories for size reduction during sample preparation. 4.5.1.1 …

A fundamental model of an industrial-scale jaw …

In this study, a fundamental model of a jaw crusher has been developed. The model is based on previous knowledge from studies of cone crushers applied to jaw …

New concepts in Jaw Crusher technology

New ideas in primary Jaw Crusher design — Design and manufacture of 66-inch × 84-inch (167.64-cm × 213.36-cm) Jaw Crusher utilizing open feed throat concept, power savings and automation features. Recommended articles.

Influence of some rock strength properties on jaw crusher performance

Search ScienceDirect. Article preview. Abstract; References (10) Mining Science and Technology (China) ... 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 …

Study on productivity of eccentric roll crusher based

Johansson at al. (2017) proposed a basic model for an industrial-scale jaw crusher, which predicted capacity and power consumption for various speeds and crusher settings. Fladvad and Onnela (2020) proposed a parameter study after investigating the influence of feed and jaw crusher parameters on aggregate quality in single-stage …

Roll Crusher

Jaw Crusher. This type of primary crusher is usually used for crushing shale to reduce it to a size suitable for handling. Roll Crusher. For a given reduction ratio, single-roll crushers are capable of reducing ROM material to a product with a top size in the range of 200–18 mm in a single pass, depending upon the top size of the feed coal ...

Crusher

Mechanical Crushing and Grinding. Oleg D. Neikov, in Handbook of Non-Ferrous Metal Powders, 2009 Crushers. Crushers are widely used as a primary stage to produce the particulate product finer than about 50–100 mm in size. They are classified as jaw, gyratory and cone crushers based on compression, cutter mill based on shear and hammer …

New concepts in Jaw Crusher technology

1. Mfg. of jaw crusher that crushes rock, minerals, aggregates and glass to specified size. 2. Mfg. of jaw crusher that saves energy and money. 3. a crusher that increases jaw plate life.--Syn. 1. crushing-without-rubbing, low operating cost, little downtime. Fig.l Original "slogan" of the Straub Manufacturing Company, ancestor of the …

Investigating the effects of feeding properties on rock breakage by jaw

Recently, Barrios et al. [18] performed such DEM modeling that simulates the performance of a laboratory-scale jaw crusher. They concluded that the performance factors such as throughput, product achievement, compressive forces acting on jaw plates, size reduction ratio (SRR), and specific energy consumption could be estimated, …

Influence of jaw crusher parameters on the quality of …

This paper presents a parameter study investigating the effect of feed and jaw crusher parameters on the quality of aggregates produced from single-stage crushing. …

Multi-object optimization design for differential and

Our differential and grading toothed roll crusher blends the advantages of a toothed roll crusher and a jaw crusher and possesses characteristics of great crushing, high breaking efficiency, multi-sieving and has, for the moment, made up for the shortcomings of the toothed roll crusher. The moving jaw of the crusher is a crank …