Four Methods for Effectively Controlling the Grinding Concentration of Electric Roller

1. Electric roller feeding speed
 The feed rate is the amount of electricity that can be passed through the electric mill per unit time. When the ore feeding speed is very low, the amount of ore in the electric roller is small, not only the productivity is low, but also the result of the air play is made, so that the wear and over-grinding are serious; when the feeding speed exceeds a certain quota of the electric roller under the specific operating system, the electricity is charged. The roller will be overloaded, and the steel ball will be discharged, and the large pieces and the slurry will be spit out and even blocked. Therefore, the ore supply must be continuous and uniform, not for a long time, so that the subsequent selection will be adversely affected.
  2. Observe the agitated cage at the end of the ore discharge. If the residue is spit out, the concentration is high; if the water is spit out, the concentration is low.
  3. Grading efficiency and returning sand ratio
  When closed-circuit grinding, they have a significant impact on the grinding classification. The higher the classification efficiency, the less the qualified particles in the sand returning, and the lighter the overgrinding phenomenon, the higher the grinding efficiency. The sand return ratio can be calculated by sampling the feeder (electrical discharge) and the product (overflow and return), or by using the liquid-solid ratio data.
 4. The concentration meter is reflected on the computer.
 Adding and subtracting sand water to control the grinding concentration. When the hardness of the ore becomes larger or the required product size is fine, the sand water is reduced; when the hardness of the ore becomes small or the required product size is coarse, the electric roller is added with sand water.