Patent ID: 6959653

Claim:
An apparatus for pivotally mounting one side of a coal nozzle tip of a coal nozzle operable in a pulverized solid fuel-fired furnace to a coal nozzle body of the coal nozzle, the one side of the coal nozzle tip having a through hole therethrough and the coal nozzle tip and the coal nozzle body being mounted relative to one another such that the one side of the coal nozzle tip is outward of the coal nozzle body, the apparatus comprising: a latch interconnecting assembly including: a pin for insertion in a traversing movement along an insertion axis through both the through hole of the coal nozzle tip and a correspondingly aligned pivot support hole of the coal nozzle body, the pin having a traverse end and an inside end with the traverse end of the pin being inserted during the traversing movement initially through the pivot support hole of the coal nozzle body and thereafter through the through hole of the one side of the coal nozzle tip, whereupon, in the fully inserted position of the pin, the traverse end of the pin is outward of the one side of the coal nozzle body and the inside end of the pin is inward of the coal nozzle body; and an engagement element for resisting a withdrawal movement of the pin in a direction opposite to its traversing movement, the engagement element being reversibly movable between a deployed position in which the engagement element engages the pin to resist withdrawal movement of the pin in a direction opposite to its traversing movement and a non-deployed position in which resistance of withdrawal movement of the pin by the engagement element is insufficient to prevent withdrawal of the pin from the throughhole of the coal nozzle tip, the path of movement of the engagement element between its deployed position and its non-deployed position being such that, throughout such movement of the engagement element, the path of movement of the engagement element can be intersected by a radial plane passing through the pin perpendicular to the insertion axis.