Pulp concentration can affect the following technical and economic indicators:
(1) Recovery rate: When the pulp concentration is low, the recovery rate is low. As the pulp concentration increases, the recovery rate also increases, but exceeding a certain limit will decrease the recovery rate (because excessively high pulp concentration disrupts the aeration conditions of the flotation machine).
(2) Concentrate quality: Generally, the concentrate quality is higher when flotation is performed in a thinner pulp, while the concentrate quality decreases when flotation is performed in a thicker pulp.
(3) Reagent consumption: When the pulp is thicker, less reagent is needed per ton of ore; when the pulp concentration is thinner, more reagent is needed per ton of ore.
(4) Flotation machine capacity: As the pulp concentration increases, the flotation machine capacity calculated per throughput also increases.
(5) Water and electricity consumption: The thicker the pulp, the less water and electricity is needed per ton of ore processed.
(6) Flotation time: When the flotation pulp is relatively thick, the flotation time increases slightly.
In summary, a thicker pulp concentration is beneficial to the flotation process. However, if the concentration is too high, the pulp and air bubbles cannot flow freely, which will worsen the aeration effect, thereby reducing quality and recovery rate. Therefore, for the flotation of various ores, the appropriate pulp concentration must be determined based on the ore properties and relevant technical requirements.