The slurry concentration can affect the following technical and economic indicators: 1) affecting the recovery rate. When the slurry concentration is small, the recovery rate is low. As the concentration of the slurry increases, the recovery rate also increases, but the recovery rate exceeds the limit. The main reason is that the concentration is too high, which destroys the aeration condition of the flotation machine.

2) Affect the quality of concentrate. The general rule is that the quality of the concentrate is higher in the thinner slurry flotation, and the quality of the concentrate is reduced in the flotation of the richer slurry.

3) affect the consumption of the drug. When the slurry is thicker, the amount of treatment per ton of ore is less, and when the concentration of the slurry is thinner, the amount of treatment per ton of ore is increased.

4) Affect the production capacity of the flotation machine. As the concentration of the slurry increases, the production capacity of the flotation machine calculated according to the treatment amount also increases.

5) Affecting water and electricity consumption. The thicker the slurry, the smaller the water and electricity consumption per ton of ore processed.

6) Influence the flotation time. When flotation complex process of pulp darker, flotation time increased slightly.

In short, when the concentration of the slurry is rich, the flotation process is favorable. However, if the particles and bubbles do not flow freely, the aeration will be deteriorated, thereby reducing the quality and recovery. Therefore, the flotation of various ores must be based on the nature of the ore and related technical requirements to determine the appropriate concentration of pulp.

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