Features of coal dust dynamics at action of differently oriented forces in granular filtering medium

TL;DR

This study investigates how coal dust particles move and form structures in a horizontal air filter model, revealing differences in dust behavior depending on the orientation of forces acting on the particles.

Contribution

It provides experimental data on dust dynamics in a horizontal filter with perpendicular forces, contrasting with vertical filter behavior, and highlights conditions preventing resistance spikes.

Findings

No uncontrolled resistance increase in horizontal orientation

Dust scattering occurs normally in perpendicular forces

Quantitative parameters of dust transport are measured

Abstract

The process of the coal dust particles transportation and structurization in the experimental horizontal model of air filter with the cylindrical coal adsorbent granules as in the iodine air filter at the nuclear power plant is researched. In the investigated case the vector of carrying away force of air flow and the vector of gravitation force are mutually perpendicular, and the scattering of the dust particles on the granules occurs in the normal directions. It is found that the phenomenon of non controlled spontaneous sharp increase of aerodynamic resistance in the iodine air filter under the big integral volumes of filtered air and the big masses of introduced coal dust particles is not observed at the described experimental conditions in distinction from the case of the parallel orientation of this forces as in the vertical iodine air filters at the nuclear power plant. The quantitative measurements of the main parameters of the process of the dust masses transportation and structurization are made on a developed experimental model of the iodine air filter with the cylindrical coal adsorbent granules.