| 摘要 |
PURPOSE:To efficiently and uniformly mix a plurality of kinds of powders, by supplying a plurality of kinds of powders to a gas flown at least at a speed enough to enable the powders to float in a mixing bath. CONSTITUTION:A plurality of pipes 4 for powder supply, a gas entrance duct 2, and an exit duct 3 are installed around, in a down part, and in an upper part of a mixing bath 1, respectively. A plurality of kinds of powders are supplied through the pipes 4 to the bath while a gas is flown from the duct 2 at least at speed enough to enable the powders to float. Then, the powders with the gas conveyed to outside of the bath 1 through the duct 3 are captured by a dust collecting apparatus 7 such as a bagfilter set in a down part. As a result, a plurality of kinds of powders are mixed efficiently and uniformly and at the same time, electric power consumption of the fan is suppressed low. |
