Электронный архив
Донецкого национального технического университета (г.Донецк)
Electronic archive of Donetsk national technical university (Donetsk)
 

eaDonNTU, Donetsk >
Научные труды ДонНТУ >
Вестник Донецкого национального технического университета >
№4(4)'2016 >

Please use this identifier to cite or link to this item: http://ea.donntu.org/handle/123456789/31114

Title: Анализ возможности использования существующих технических средств для получения стальной колотой дроби
Other Titles: The analysis of possibility of using the existing technical means to obtain the steel chipped fraction
Authors: Павлиненко, О.И.
Левченко, Э.П.
Чебан, В.Г.
Pavlinenko, O.I.
Levchenko, E.P.
Cheban, V.G.
Keywords: стальная дробь
дробилка
мельница
разрушение
твердость
крупность
steel fraction
grinder
mill
fracture
hardness
particle size
Issue Date: 2016
Publisher: ДонНТУ
Citation: Павлиненко, О.И. Анализ возможности использования существующих технических средств для получения стальной колотой дроби / О.И. Павлиненко, Э.П. Левченко, В.Г. Чебан // Вестник ДонНТУ. - 2016. - №4(4). - С. 38–44. - Библиогр. в конце ст.
Abstract: Выполнен анализ возможности применения существующих конструкций дробилок и мельниц для получения стальной колотой дроби. Обосновано применение разгонно-ударной мельницы, использующей принцип «свободного удара», который позволяет свести к минимуму все энергоемкие процессы, связанные со смятием и уплотнением исходного материала, а также модернизация способа ударного раскалывания в шаровой мельнице.
Description: Background. The analysis of machines for materials crushing and grinding and the ways of destruction implemented in them showed that high-speedcentrifugal impact grinders of accelerating action type and the ball mills are the most preferable to obtain the steel chipped fraction if the central impact is the priority in them. Materials and/or methods. Comparative analysis of various types of crushing machines is carried out regarding the possibility of crushing steel chipped faction. Evaluation of the effectiveness of considered options of use of crushing and grinding machines was performed via analytical comparison of the ways of applying loads on the material combined with the advantages and disadvantages of the types of machines which showed a preferred use ofcentrifugal impact grinders and ball mills for the formation of the chipped fraction. Results. Along with the use of free direct strike, which is implemented in centrifugal impact mills of the accelerating action type, the new concept of increasing efficiency of drum mills used for the preparation of chipped fractions, with grinding bodies in the form of polyhedra with flat sides having correct or incorrect form. This will increase the probability of a direct collision of the grinding bodies with round fractions in the working space of these machines and eliminate harmful, from the point of view of the irrational use of energy, ricochets leading to the dispersion of energy in the form of useless heat release. Conclusion. Based on the analysis of various types of machinery for crushing and grinding of materials identified the most efficient designs for efficient crushing of steel fraction in the form of centrifugal impact mills and drum mills with grinding bodies in the form of polyhedra with flat sides, which allows to achieve the implementation of directimpact in the working space of these machines.
URI: http://ea.donntu.org/handle/123456789/31114
Appears in Collections:№4(4)'2016

Files in This Item:

File Description SizeFormat
38-44.pdf640.83 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.