Rotary feeder
AssigneeEcolaire Incorporated
InventorThomas Walters, Jr.
Life of this patent
Estimating the term…
Abstract
A rotary feeder is disclosed for feeding abrasive materials at high temperatures up to about 2300.degree. F. Each of the rotor and stator have preformed refractory inserts removably retained in position without separate fasteners being used. The inserts are preferably preformed with a camber to facilitate spring-like retention thereof.
Claims12
A feeder for feeding high temperature material comprising:
- (a) a housing having an inlet end and an outlet end,
- (b) a stator adjacent said inlet end, said stator having a pair of spaced refractory inserts on an internal face thereof disposed within said housing, each insert having an exposed surface which is smaller than an opposite surface,
- (c) a movable feed member in said housing for moving material from said inlet end toward said outlet end, said feed member having a plurality of blades, each of said blades having a terminal end portion supporting a refractory insert, each blade insert having an exposed surface which is smaller than an opposite surface,
- (d) the spacing between said stator inserts corresponding generally to the spacing between said blade inserts so that the exposed surface on each stator insert is juxtaposed to the exposed surface of a blade insert in one position of said feed member, and
- (e) means for moving said feed member relative to said stator.
A rotary feeder for feeding abrasive material at temperatures up to about 2300.degree. F. comprising a housing having an inlet and an outlet, a stator having an arcuate surface within said housing, a rotor in said housing for moving material from said inlet to said outlet, said rotor having a plurality of blades, the periphery of each blade being positionable by rotation of the rotor so as to be juxtaposed to said arcuate surface on said stator, a drive shaft for said rotor, said drive shaft extending through an end wall of said housing for connection to a drive motor, the improvement comprising the terminal end portion of each blade having a recess receiving a high temperature refractory insert with a surface of the insert being exposed, said arcuate surface on said stator having a pair of spaced parallel recesses, each of the stator recesses receiving a high temperature refractory insert with an exposed surface on the stator insert juxtaposed to the exposed surface on one of the blade inserts, each of the inserts having a transverse dimension greater than the transverse dimension of its exposed surface.
Dependencies are inferred from the claim text.