Ore grinding method for ores with different hardness

• Main Authors: MA YINGPING, ZHAO TIANYAN, WANG XIAOQIANG, WANG TINGXIA, WANG JUNRU, MIAO LIANG, HU YANMING, LUO GANG, BAO XILIN
• Format: Patent
• Language: Chinese; English
• Published: 07.01.2020
• Subjects: CRUSHING, PULVERISING, OR DISINTEGRATING; CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS; MILLING GRAIN; PERFORMING OPERATIONS; PREPARATORY TREATMENT OF GRAIN FOR MILLING; SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS; SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS; TRANSPORTING

The invention provides an ore grinding method for ores with different hardness, and belongs to the field of mineral processing engineering. In a set of ore grinding system, ore grinding operation of the ores with different hardness is carried out, the various ores reach the same ore grinding fineness by adjusting the ore grinding medium condition of a ball mill, a sand-returning ratio of a hydrocyclone, the ore grinding concentration of the ball mill and the ore grinding time of the ball mill, and the ore grinding medium condition of the ball mill comprises a diameter proportion of an ore grinding medium and the ore grinding medium filling rate. It is ensured that the ore discharge fineness of the ball mill is the same basically, and ore dressing technical indexes of the ores with different hardness are guaranteed. 一种兼顾不同硬度矿石的磨矿方法，属于矿物加工工程领域，在一套磨矿系统中，进行不同硬度矿石的磨矿作业，通过调节球磨机磨矿介质条件、水力旋流器返砂比、球磨机磨矿浓度以及球磨机磨矿时间，使各种矿石达到相同的磨矿细度，所述球磨机磨矿介质条件为磨矿介质的直径比例以及磨矿介质充填率。可以保证球磨机排矿细度基本相同，保证了不同硬度矿石的选矿技术指标。