REAL

Effect of the milling parameters on the product dispersity and energy consumption in a continuous dry air-transported stirred media mill

Rácz, Ádám and Tamás, László and Gombkötő, Imre (2017) Effect of the milling parameters on the product dispersity and energy consumption in a continuous dry air-transported stirred media mill. In: 15th European Symposium on Comminution and classification, 2017.09.11-2017.09.14., Izmir, Törökország.

[img]
Preview
Text
Rácz et al ESCC2017.pdf

Download (497kB) | Preview

Abstract

Stirred media mills are widely used for the production of ultrafine and nano materials in wet mode, however its application in dry mode is still limited today. The present paper deals with the operation of a continuous dry air-transported stirred media mill. The stirred media mill works in dry continuous mode, and the material is transported inside the mill by air. The mill and the additional systems were designed and built by the research group. The mill was equipped with a measurement and data acquisition system, so the air flow rate and pressure drop in the mill and in the air-solid separation system can be measured continuously. The aim of the research was to investigate the air-transported working principle in case of a horizontal stirred media mill and to install the laboratory scale mill and the additional systems. During the measurements the mill was operated in open circuit mode, the feed model material was limestone. The effect of the feed rate, air flow rate, and tip speed of the rotor on the product particle size was investigated, while the energy consumption of the mill and ventilator was measured as well. As a result of the research work the operation of the mill and the effects of the feed rate, air flow rate and tip speed on the product fineness and specific grinding energy was revealed. The developed laboratory scale dry stirred media milling system can be effectively used for the production of fine ground materials.

Item Type: Conference or Workshop Item (Paper)
Subjects: Q Science / természettudomány > QE Geology / földtudományok
T Technology / alkalmazott, műszaki tudományok > TN Mining engineering. Metallurgy / bányászat, kohászat, fémipar
T Technology / alkalmazott, műszaki tudományok > TP Chemical technology / vegyipar, vegyészeti technológia
Depositing User: Dr. Ádám Rácz
Date Deposited: 27 Sep 2018 13:59
Last Modified: 27 Sep 2018 13:59
URI: http://real.mtak.hu/id/eprint/85640

Actions (login required)

Edit Item Edit Item