湿式サイクロンの機能と脱鉄効果との関係 : 泉山陶石の脱鉄に関する試験研究(第1報)
スポンサーリンク
概要
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From the standpoint of the utilization of the pottery stone of poor quality, the removal of iron content of lzumiyama pottery stone by the hydraulic cyclone was investigated. According to the mineralogical study of lzumiyama pottery stone by N. Yoshida, our department, it is determined that the main mineral containing iron is pyrites. The specific gravity of pyrites is higher than those of quartz, sericite, kaolin which are the main mine-ral compositions of this pottery stone. Therefore, it is preferable to use the hydraulic cyclone in order to remove the pyrites content. The three samples of lzumiyama pottery stone of poor quality are provided by crushing with the ball mill during 6,9 and 12 hours respectively. The numerous experiments were carried out in order to clear up the relation between the operating conditions of hydraulic cyclone and the removing ratio of iron content. The experimental results obtained are summarized as follows. (1) The best operating conditions are as follows ; the pulp density, 10%, feed pressure, 1.0 kg/cm^2,diameter of underflow nozzle (Du), 9.0 mm. The best results were obtained in the case of the sample crushed with the ball mill during 6 hours. (2) The removing ratio of iron content in the best operating condition is 48%. In this case, the iron content of the feed sample is 0.729% ; therefore, the iron content of the overflow sample is 0.729 x 0.48 =0.35% Fe_2O_3. The actual quantity of overflow sample is 48% of the total quantity of feed.
- 社団法人日本セラミックス協会の論文
- 1962-01-01