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Аэродинамика ротора измельчителя встречного удара

Аэродинамика ротора измельчителя встречного удара

Abstract

Influence of an air stream on material movement in a rotor of a grinder of counter blow is considered. The principle of work of a grinder of counter blow and as there is a material destruction by cutting and blow at rotation of two rotors towards each other is shown. The hypothetical picture of destruction of a particle of a material in a rotor a grinder of counter blow is presented. The graphic solution of a triangle of speeds of a particle of a material of the spherical form which is between ranks of teeths of a rotor is provided. Three scenarios of contact of a particle of a material with rotor elements are developed and described. The research objective is considered identification of opportunities of optimization of design data of a rotor. It is shown that providing tannins of a grinding probably due to formation of aerodynamic characteristics of concentric ranks of teeths by analogy to centrifugal fans. Planned to the direction of further work.

Рассмотрено влияние воздушного потока на движение материала в роторе измельчителя встречного удара. Показан принцип работы измельчителя встречного удара и как происходит разрушение материала резанием и ударом при вращении двух роторов навстречу друг другу. Представлена гипотетическая картина разрушения частицы материала в роторе измельчителя встречного удара. Приводится графическое решение треугольника скоростей частицы материала шаровидной формы, находящейся между рядами зубьев ротора. Разработано и описано три сценария контакта частицы материала с элементами ротора. Целью исследования считается выявление возможностей оптимизации конструктивных параметров ротора. Показано, что обеспечение тонины помола возможно за счёт формирования аэродинамических характеристик концентрических рядов зубьев по аналогии с центробежными вентиляторами. Намечено направление дальнейшей работы.

Keywords

РОТОР, ВСТРЕЧНЫЙ УДАР, ИЗМЕЛЬЧЕНИЕ, ЦЕНТРОБЕЖНЫЙ ВЕНТИЛЯТОР, ВОЗДУШНЫЙ ПОТОК

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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold