Particulate material flow measuring device

Measuring and testing – Volume or rate of flow – By measuring thrust or drag forces

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G01F 130

Patent

active

058958657

ABSTRACT:
A load scale mountable onto a vertical conduit for measuring the mass flow rate of particulate solids. The load scale includes an outer vertical housing (H), and an inner sleeve (30) that has a central axis of symmetry (C). A feed manifold (T) is located above an inlet (32) of the sleeve (30) so that particulate feed is channeled through a slide gate (20) into the inner sleeve (30). A particulate deflector (40) with a surface (42) that has rotational symmetry about a vertical axis (C), and that is shaped to guide particulate solids outward from a central apex (44) at its upper extremity, is mounted centrally in the sleeve (30). An impingement ring (36) extends around an inner circumference of the sleeve (30), near and below the peripheral edge (43) of the surface of the particulate deflector (40), such that particulates that flowed over the deflector (40) in a sheet impinge upon a reverse angled surface (38) of the ring (36). A load cell (76) is mechanically connected to the sleeve (30), and fixedly mounted to the outer housing (H), so that the load cell (76) measures any deflection caused by the flow of particulates over the deflector surface (42) and impingement on ring (36).

REFERENCES:
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patent: 3640136 (1972-02-01), Nolte
patent: 3945532 (1976-03-01), Marks
patent: 4354622 (1982-10-01), Wood
patent: 4637262 (1987-01-01), Vesa
patent: 5065632 (1991-11-01), Reuter
patent: 5335554 (1994-08-01), Kempf et al.
patent: 5560246 (1996-10-01), Bottinger et al.
patent: 5681999 (1997-10-01), Pollano et al.
patent: 5698794 (1997-12-01), Bussian

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