The Effect of Rotor Balance During Crushing of Intermetallic Compounds in Hammer Crushers

Kobrin, Yurii; Vlasov, Andrii; Shevchenko, I. M.

doi:10.37904/metal.2020.3617

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…The paper [28] considers and presents such factors and parameters that affect crushing in hammer crushers, such as imbalance and equilibrium of the rotor. The design and technological factors of impact crushing equipment are analyzed.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Determination of the average size of preliminary grinded wet feed particles in hammer grinders

Abilzhanuly

Искаков

Abilzhanov

et al. 2023

EEJET

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In the conditions of farms, it becomes necessary to grind feed that has a different degree of moisture. Therefore, the choice of universal working bodies is the object of research, and the theoretical determination of the average size of pre-crushed feed particles is of great scientific and practical importance and is a problem that needs to be solved. Proceeding from this, a constructive-technological scheme of a grinder with a universal grinding working body is proposed. The grinding apparatus is equipped with a hammer working body which has cutting edges. In this case, hammers with cutting edges crush the wet mass, and also create an air flow and work as flow accelerators at high speed. As a result of theoretical studies, the steps for arranging these working bodies were determined. Analytical expressions are obtained for determining the average length of pre-crushed feed particles depending on the distance between the faces of replaceable knife working bodies, i.e. from the step of arranging them in rows. At the same time, the calculation results showed that with a distance between the faces of replaceable hammers of 20 mm, the value of the average length of the grinded particles was 38.38 mm. The average size of pre-crushed particles from feed raw materials intended for farm animals was 37.64 mm, i. e. the difference between theoretical and actual value is only 2.0 %. This proves the reliability of the obtained analytical expression, which provides the determination of the main parameter of the grinding working body, i. e. spacing of radial knives in rows. The proposed method of determining the average length of crushed particles allows theoretically finding and planning the required particle size

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Determination of the average size of preliminary grinded wet feed particles in hammer grinders

Abilzhanuly

Искаков

Abilzhanov

et al. 2023

EEJET

View full text Add to dashboard Cite

show abstract

“…Considered and presented are factors and parameters that affect crushing in hammer crushers, such as unbalance and balance of the rotor. Improvement methods are proposed by means of prompt and timely balancing of the rotor in a hammer mill and on a balancing stand [91].…”

Section: Engineeringmentioning

confidence: 99%

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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The Effect of Rotor Balance During Crushing of Intermetallic Compounds in Hammer Crushers

Cited by 2 publications

References 2 publications

Determination of the average size of preliminary grinded wet feed particles in hammer grinders

Determination of the average size of preliminary grinded wet feed particles in hammer grinders

Impact elements of feed grinder: a review

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