Patent ID: 6176647
Filing Date: 2001-01-23
Classification: B05B,C25D,G01F

Abstract:
A powder mass flow meter comprising:a measuring tube having an inlet and outlet,a powder introduction means for introducing powder into said measuring tube,a dispersion means for successively shearing off the terminal end of a column of bulk powder into thin layers at the output port of said powder introduction means and for conveying the powder into said measuring tube by means of a measuring gas which is spout out from slits toward the axis of said powder column as high-speed thin layer gas streams, said slits being provided around the almost entire circumference of an inner wall of the output port of said powder introduction means, thereby said powder is dispersed into powder particles suspended in the measuring gas and conveyed into the measuring tube, anda sensor for measuring a pressure difference between the inlet and outlet of said measuring tube.