Apparatus and method for monitoring mass flow of solids

Details Apparatus and method for monitoring mass flow of solids Apparatus and method for monitoring mass flow of solids

1991-12-03

1993-10-19

Razavi, Michael T.

Measuring and testing

Volume or rate of flow

Mass flow by imparting angular or transverse momentum to the...

73217, 73218, 2503561, 250434, 250435, G01F 186

Patent

active

052535355

ABSTRACT:
A method and apparatus for transporting solid particulate material and calculating mass flow rate of the material through a rotary feeder having helical pockets is provided. At least one radiation source and two or more detectors are positioned in a manner whereby radiation flux is directed through, and attenuated by particulate material contained in a helical pocket. The amount of attenuation is measured at least when the pocket is filled with material and when the pocket has discharged most of the material. The difference in the amount of flux detected at the filled and discharged positions is used to determine the mass flow rate of the particulate material.

REFERENCES:
patent: 1579280 (1926-04-01), Coleman
patent: 2654246 (1953-10-01), Pfan
patent: 2896084 (1959-07-01), MacDonald
patent: 4238956 (1980-12-01), Sniezek et al.
patent: 4520677 (1985-06-01), Macko et al.

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