Correlation between the Angle of the Guide Plate and Crushing Performance in Vertical Shaft Crushers

Feng, Feifei; Shi, Jinfa; Yang, Jie; Ma, Junxu

doi:10.1155/2022/9991855

Cited by 4 publications

(3 citation statements)

References 16 publications

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“…In [64], on the basis of the method of discrete elements, a rotor of an impact crusher with a vertical shaft was modeled. The effect of various guide plate angles on the rotor acceleration characteristics was studied by extracting particle velocity data.…”

Section: Resultsmentioning

confidence: 99%

“…Geometric model of rotors based on the design of an impact crusher with a vertical shaft [64] Impact crusher front guide plate wear is the most serious At the angle of the crusher guide plate, the maximum peak particle velocity in the whole process was relatively high 8 Physical and mathematical model for designing and testing the annular armor of a vertical shaft impact crusher [65] The angle of impact between the particles of the original material and the segment of the annular armor in most cases is not determined…”

Section: Disadvantages Of the Mathematical Modelmentioning

confidence: 99%

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Impact elements of feed grinder: a review

2023

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The article deals with the issue concerning the working bodies of technological equipment designed for grinding pieces and particles of feed raw materials. The most profiTable feed raw materials are by-products and waste materials of animal origin, which have a valuable high-protein content. An alternative way of mandatory waste disposal is their processing, including mechanical grinding to obtain feed products. In the process of grinding, particular importance is given to the working bodies, with the help of which the raw material is directly divided into parts. In this case, the destruction of the feed material often occurs by means of impact. Impact phenomena have proven to be highly effective in the process of intense cracking and chipping, which leads to the desired separation of the crushed particles into smaller ones. However, it is found that crushers have insufficient efficiency of impact elements. The work analyzes the processes of impact grinding from the standpoint of a number of scientific hypotheses, theories, modeling, simulation, experience and approbation, presented in various scientific publications. When studying and improving the theory of impact, attention is paid to nonlinear problems, cracking, modernization of the theory of brittle fracture, diagrams of force changes during impact force, impact equations, wave theory of impact, peridynamic theory. It should be noted that the main scientific results are directly reflected in the improvement of the design features of hammers. It has been revealed that the main improvement in the design of impact elements is in the direction of increasing the efficiency of working surfaces and developing the combination of impact with cutting, abrasion and crushing

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Section: Resultsmentioning

confidence: 99%

Section: Disadvantages Of the Mathematical Modelmentioning

confidence: 99%

Impact elements of feed grinder: a review

2023

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“…The results indicated that the rotor with six channels exhibited the most reasonable structure, offering optimal acceleration effects and crushing efficiency. Feng [20] utilized discrete element simulation software to dynamically simulate the rotor, analyzing particle velocity. The study focused on understanding the influence of the guide plate angle on particle acceleration effects.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the effect of flow channel structure on centrifugal accelerated motion of particles in vacuum state

Sun,

Wei,

et al. 2023

Preprint

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This study explores the impact of flow channel structure on the acceleration of metal particles in a vacuum environment, aiming to enhance acceleration quality in centrifugal impact molding of metal powders. To assess this, three evaluation indices are introduced: the average speed of particles thrown 𝑉𝑝, the average speed of the particles 𝑉𝑎𝑙𝑙, and the particle velocity distribution 𝑉𝑓(t). The research analyzes how six distinct runner structures influence the centrifugal acceleration of particles. Findings indicate that the arc-shaped flow channel structure not only ensures a more consistent acceleration process but also results in a higher ejection speed, leading to an improved acceleration effect. This study's unique contribution is its examination of the relationship between flow channel design and particle acceleration in a vacuum.

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Optimizing of particle accelerated rotor parameters using the discrete element method

Sun,

Wei,

Yang

et al. 2023

Sci Rep

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The acceleration capability of a centrifugal jet rotor plays a crucial role in achieving a high injection velocity of powder particles in the centrifugal impact moulding process. In this regard, the focus of this article is on optimization of the runner shape. To this end, the lengths of the first and second acceleration sections (L1 and L2), and the angles between the first and second acceleration sections and between the second and third sections (α1 and α2) are considered as the rotor parameters. Simulations were conducted using multiple discrete elements to explore the influence of multiple input parameters on the response value, and a regression model was established between the parameters and the particle injection rate. The experimental results show that the selected parameters significantly affect the rate of particle injection, and the interactions between the parameters L1 and L2, and between L2 and α2 have the largest effects. The results reveal that applying the optimized parameters improves the particle injection speed by 7.85% when compared to the pre-optimization model. This improvement in the rotor acceleration provides the basis for improving the efficiency of centrifugal impact moulding of metal powders.

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Correlation between the Angle of the Guide Plate and Crushing Performance in Vertical Shaft Crushers

Cited by 4 publications

References 16 publications

Impact elements of feed grinder: a review

Impact elements of feed grinder: a review

Analysis of the effect of flow channel structure on centrifugal accelerated motion of particles in vacuum state

Optimizing of particle accelerated rotor parameters using the discrete element method

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