Method and apparatus for measuring powder flow rate

Details Method and apparatus for measuring powder flow rate Method and apparatus for measuring powder flow rate

1994-07-19

1995-10-03

Chilcot, Jr., Richard E.

Measuring and testing

Volume or rate of flow

Of selected fluid mixture component

73 32R, 7386107, 73861, B65G 5102

Patent

active

054542715

ABSTRACT:
A powder flow rate is measured based on a simple construction so as to provide method and apparatus for measuring the powder flow rate for example of a powder coating material, requiring less maintenance cost and facilitating change of color of the coating material. In the method for measuring powder flow rate: a density .rho.1 of the powder within a tank is measured; the powder is drawn out from the tank into a conveying tube; a detecting fluid is blown at a flow rate Qf into the conveying tube a density .rho.2 of the powder in the conveying tube is measured; and a powder flow rate Fm is measured based on an equation of Fm=Qf.multidot..rho.1.multidot..rho.2/(.rho.1-.rho.2). The density .rho.1 of the powder in the tank may be measured by providing a pair of pressure measuring devices at different heights within the tank. The density .rho.2 of the powder in the conveying tube may be measured through a measurement of electrostatic capacity, light transmittance or ultrasonic wave transmittance in the conveying tube.

REFERENCES:
patent: 3988926 (1976-11-01), Haas
patent: 4480947 (1984-11-01), Nagasaka
patent: 4941778 (1990-07-01), Lehmann
patent: 5351520 (1994-10-01), Buquet

Affiliated with

Also associated with

Rating

Method and apparatus for measuring powder flow rate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for measuring powder flow rate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for measuring powder flow rate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1071742