Slide gate for a sliding gate valve
AssigneeFlo-Con Systems, Inc.
InventorPatrick D. King
Life of this patent
Estimating the term…
Abstract
A sliding gate valve and more specifically one in which bilateral symmetry is preserved in both the stationary plate and the slide gate. More specifically, the slide gate is provided with a metallic frame which retains a monolithic refractory into which errosion resistant refractory inserts or preformed members are cast. Means are desirably provided to remove the spent refractory for remanufacture thereby reclaiming the casting. Both the stationary plate and the slide gate casting have spring pad back up reinforcements. The stationary plate desirably has means for securing a well nozzle to it.
Claims9
For use in a sliding gate valve, a sliding gate having a pouring orifice, comprising in combination,
- a frame for containing refractory,
- said frame being symmetrical about its transverse axis and symmetrical about its longitudinal axis,
- said pouring orifice being at a mid-position of the frame both transversely and longitudinally,
- a circular reinforcing support in the frame to support the pouring orifice of said slide gate,
- a preformed refractory insert for insertion in said frame, spacer means integral with the frame in surrounding relationship to the pouring orifice for supporting any preformed refractory insert forming the working face of the same,
- a monolithic castable refractory imbedding the preformed refractory insert in the frame,
- and knock-out openings in the bottom of the frame in open communication with the monolithic refractory, whereby a spent such valve can be remanufactured by pressing a mandrel against the nozzle portion and knock-out plugs.
For use in a sliding gate valve, a sliding gate having a pouring orifice, comprising in combination,
- a frame for containing refractory,
- said frame being symmetrical about its transverse axis and symmetrical about its longitudinal axis,
- said pouring orifice being at a mid-portion of the frame both transverse and longitudinally,
- a circular reinforcing support in the frame to support the pouring orifice of said slide gate,
- a preformed refractory insert for insertion in said frame, and
- an insert pad ring in said frame positioned to underlie inserts spaced from the pouring orifice.
Dependencies are inferred from the claim text.