Open AccessTHE SINTERING PROCESS LIMITS GRINDING QUARTZ POWDER IN A PLANETARY MILL AGO-2 WITH OPTIMAL ENERGO TENSION
Author(s) -
Irina V. Milyukova,
Милюкова Ирина Васильевна,
Sergey V. Sobyanin,
Собянин Сергей Васильевич
Publication year - 2018
Publication title -
vestnik ûgorskogo gosudarstvennogo universiteta
Language(s) - English
Resource type - Journals
eISSN - 2078-9114
pISSN - 1816-9228
DOI - 10.17816/byusu20180441-48
Subject(s) - grinding , quartz , materials science , thermocouple , sintering , economies of agglomeration , composite material , particle size , specific surface area , chemical engineering , chemistry , biochemistry , engineering , catalysis
The study of the agglomeration limit of quartz powder grinding at the AGO-2 planetary mill was carried out. For operation, several modes were selected, 3 basic modes with a coefficient of filling grinding media φ=0,5; 0,6; 07, as well as one additional mode with a filling factor φ=0,4 and a smaller proportion of quartz powder. The agglomeration limit for quartz during mechanical activation on AGO-2 is the average powder diameter of 1.5 µm, and the maximum value of the specific surface is 15,000 cm2/g. The paper proposes a method for calculating the energy intensity of the AGO-2 activator, by which it was possible to estimate the optimal mode of treatment of quartz to obtain ultrafine particles with a load factor φ=0,4 and a time of mechanical activation up to 60 seconds. Determination of the average size and specific surface area of the particles after mechanical activation was carried out by the method of gas permeability Of the pocket - Goat using the device PSH-11. Measuring the temperature of the mixture of grinding media and powder in the drum was made contact thermometer TK-5.09, equipped with a thermocouple 3V9-500.