Open AccessTwo-stage rotary crushing mixer
Author(s) -
С. В. Лапонов,
Н. С. Шулаев,
С. П. Иванов,
K. E. Bondar,
T. V. Shulaeva
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1047/1/012157
Subject(s) - dissipation , mixing (physics) , stage (stratigraphy) , power (physics) , energy consumption , materials science , mechanics , specific energy , turbulence , mechanical energy , mechanical engineering , flow (mathematics) , process engineering , engineering , physics , thermodynamics , electrical engineering , paleontology , quantum mechanics , biology
This article provides an overview of the design of a two-stage rotary crushing mixer and describes the principle of operation. It has been experimentally proven that the use of a two-stage rotary crushing mixer, in comparison with a single-stage apparatus, leads to a significant increase in the quality of the mixture and productivity. It was found that to create an emulsion with a certain size of dispersed particles, a two-stage apparatus consumes less power, this is explained by the fact that in a single-stage apparatus, to achieve the specified size of dispersed particles, the processing time of the mixture increases, and therefore energy consumption increases. In addition, the specific power consumption of the two-stage apparatus is less than the sum of the capacities of the two single-stage apparatus, which indicates a higher energy efficiency of the proposed design of RCM. Expressions(formulas) are given for determining the dissipated energy and power required for carrying out the mixing process, taking into account the design parameters of the apparatus, the properties of the media. It is shown that the power consumption for mixing is determined by the energy required for crushing emulsion droplets in a turbulent flow and energy dissipation due to viscous friction processes.