Patent Number: 6,915,966

Title: Apparatus for the gunning of a refractory material and nozzles for same

Abstract: An apparatus for the gunning of a material is provided having a nozzle with an inner passage having an inlet end into which a wetted material is to be introduced and an outlet end from which the material is to be sprayed. An outer passage is disposed around the inner passage and in fluid communication therewith and has an inlet end for introducing a gas to be passed through the outer passage and impinged on the wetted material passing through the inner passage. Also provided is an apparatus for the gunning of a material having a material delivery hose for providing a material. A water inlet in fluid communication with the material delivery hose provides water to wet the material and a nozzle outputs the wetted material. A mixing chamber is disposed intermediate and in fluid communication with the material delivery hose and the nozzle and has at least one inlet for introducing a mixing gas.

Inventors: Gist; Bernard D. (Roseto, PA), Letzgus, Jr.; Erwin Anton (Somerset, NJ), Gordon; Harold Harrison (Bangor, PA), Peschler; William Joseph (Sayreville, NJ), Parkinson; John Anton (Hazlet, NJ)

Assignee: Specialty Minerals (Michigan) Inc.

International Classification: B01F 13/02 (20060101); B01F 5/06 (20060101); B01F 5/08 (20060101); B01F 13/00 (20060101); B05B 7/14 (20060101); B05B 001/28 ()

Expiration Date: 07/12/2022