Wear-prevention structure for pneumatic conveying pipe elbow

Details Wear-prevention structure for pneumatic conveying pipe elbow Wear-prevention structure for pneumatic conveying pipe elbow

1990-04-23

1991-06-18

Arola, Dave W.

Pipe joints or couplings

Repair

Removable wear element

285179, 406193, F16L 5500

Patent

active

050244663

ABSTRACT:
A structure to replace the outer wall of a pipe elbow to provide wear resistance in pneumatic conveying pipes carrying particulate material, said structure having a chamber with a source of vacuum suction therein disposed on the outer portion of the elbow with a screen disposed in the chamber where particles passing through the pipe are drawn and held by the suction against the screen member to form a particle accumulation area which is struck and worn by the oncoming stream of particles. Worn areas of the particle accumulation are replaced by new particles passing through the pipe.

REFERENCES:
patent: 3977730 (1976-08-01), Seick
patent: 4387914 (1983-06-01), Paulson et al.
patent: 4595319 (1986-06-01), Cook
patent: 4606556 (1986-08-01), Metzger
patent: 4641864 (1987-02-01), Heine
patent: 4865353 (1989-09-01), Osborne

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