Interaction model of one jaw of a vibrating jaw crusher with the processed rock, taking into account the properties of the electric motor

Altshul, Grigory; Gouskov, A.; Panovko, Grigory; Shokhin, Alexander

doi:10.1088/1757-899x/747/1/012047

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…Results showed that the main cause of structure failure is fast-growing fatigue cracks formed during operation. A single jaw vibrator with constant angular velocity and unbalanced vibration was studied [23].…”

Section: Introductionmentioning

confidence: 99%

Investigation of vibrating jaw crusher experimental variables

Haddad,

Alfaqs,

Al-quraan

et al. 2023

Min. miner. depos.

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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 several particle sizes (19, 12.5, 9.5, 4.75, and less than 4.75 mm). Furthermore, the mass of the particles is measured and the particle size reduction is calculated. Findings. It has been found that the jaw crusher angle, rotating mass type, and the motor operation speed play an important role in both reducing the amount of mass and reducing the size of each particle produced. In addition, it has been determined that operation at a speed of 2000 rpm provides a significant change in both mass and size reduction of each particle size considered. Originality. The originality of this research lies in its experimental investigation of the effects of various parameters on particle size reduction in a vibrating jaw crusher, as well as in the introduction of a new design that uses one motor to drive two plates operating at different speeds and in opposite directions. Practical implications. The findings can be used to optimize the design and operation of jaw crushers in various industries, including metallurgical, quarry, and mining industries, where these crushers are widely used. The results of this study can also serve as a basis for future research on particle size reduction in other types of crushers and milling equipment.

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Section: Introductionmentioning

confidence: 99%

Investigation of vibrating jaw crusher experimental variables

Haddad,

Alfaqs,

Al-quraan

et al. 2023

Min. miner. depos.

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Features of material movement in a vertical chamber of a vibratory jaw crusher when producing a fine-grained product

2023

Geoteh. meh.

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Currently, vibrating jaw crushers show a fairly high efficiency of the technological process. An extensive amount of research carried out at the Dnipro University of Technology made it possible for the first time to substantiate the possibility of using a vibratory jaw crusher with a vertically located chamber and a pendulum suspension of the jaws as an independent grinding unit for the production of powder materials. The high-frequency impact nature of the load on the material implemented in vibrating jaw crushers made it possible to reduce the energy consumption and metal consumption of the plant, to increase the degree of crushing, which can reach the value i > 100. However, the specifics of the process of interaction of the material with the surface of the jaws in the vertical working chamber and the features of its unloading remain unknown. The refinement of this process was carried out by an experimental method on a laboratory sample of a vibratory jaw crusher ВЩД-130 using high-speed photography. The crusher includes the main elements: a body mounted on elastic elements, crushing jaws, articulated with the body by means of axes. The side surfaces of the crushing chamber are limited by transparent glass walls rigidly connected to the crusher body. The vertical movement of the jaws was determined by the readings of the vernier. The starting material was pieces larger than 40 mm and large bulk material with a grain size of 10…15 mm. An analysis of the nature of the movement of material throughout the crushing chamber showed the need to consider the chamber of a vibratory jaw crusher as two interconnected zones: crushing and grinding. Further studies were carried out for each zone.The productivity of the crushing zone is determined by a known method. It is necessary to create a rational profile of the working surface of the jaws on the basis of additional studies. Studies of the grinding zone made it possible to obtain a physical picture of the interaction of the material with the jaws over the period. In the lowest position, at the initial moment of unloading, the speed of the finished product is practically zero. When determining the productivity of the grinding zone, it is advisable not to take into account the unloading of the material at the initial speed.

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Engineering model of the vibrational transportation process

Blekhman¹,

Vasilkov²

2020

Vib. proced.

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A vibrational transportation model is proposed for single-piece and granular materials. In contrast to the well-known (“basic”) model, it allows obtaining simple general formulas for estimating the velocity of vibrational transportation in intensive tossing regimes. Such regimes are characteristic of a large number of existing and promising vibrational transportation-based process machines. This approach eliminates the need to design separate complex formulas for each of the many regimes predicted by the basic model. It has been shown that the resulting formulas are in good agreement with the experimental data, including those obtained in the work. In connection with the study, the topic of rational modeling of similar dynamic systems with complex behavior is discussed.

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Interaction model of one jaw of a vibrating jaw crusher with the processed rock, taking into account the properties of the electric motor

Cited by 3 publications

References 3 publications

Investigation of vibrating jaw crusher experimental variables

Investigation of vibrating jaw crusher experimental variables

Features of material movement in a vertical chamber of a vibratory jaw crusher when producing a fine-grained product

Engineering model of the vibrational transportation process

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