Composite particle manufacturing device and composite particle manufacturing method

A device for manufacturing composite particles by mixing a first fluid containing particles having positive surface charge potential and a second fluid containing particles having negative surface charge potential and causing the two kinds of particles to electrostatically adsorb each other, comprising:

• at least one first inlet flow path for supplying the first fluid;
• at least one second inlet flow path for supplying the second fluid;
• and a mixing flow path for merging the first fluid and the second fluid supplied respectively from the first inlet flow path and the second inlet flow path and allowing the two kinds of fluids to flow down for a predetermined length while mixing the two kinds of fluids;
• the mixing flow path being a continuous flow path and having, in at least part of the entire mixing flow path, a velocity changing region for generating an eddy flow by making a stepwise, gradual or repeated change in velocity.

A device for manufacturing composite particles by mixing a first fluid containing particles having positive surface charge potential and a second fluid containing particles having negative surface charge potential and causing the two kinds of particles to electrostatically adsorb each other, comprising:

• at least one first inlet flow path for supplying the first fluid;
• at least one second inlet flow path for supplying the second fluid;
• and a mixing flow path for merging the first fluid and the second fluid supplied respectively from the first inlet flow path and the second inlet flow path and allowing the two kinds of fluids to flow down for a predetermined length while mixing the two kinds of fluids;
• the mixing flow path being a continuous flow path and having a heterogeneous cross-sectional flow path area in a continuity direction thereof for making a stepwise, gradual, or repeated change in velocity.