Sootblower lance tube for dual cleaning media

A long retracting sootblower device for conducting a plurality of cleaning media types to an interior of a heat exchanger, the sootblower device having a lance tube assembly, a feed tube, a carriage assembly, a first cleaning media supply, and a second cleaning media supply, wherein said lance tube assembly comprises:

• a manifold for adapting to said first cleaning media supply, a hub mounted to said manifold, a first tube section extending outward from said hub, a first nozzle assembly mounted to a distal end of said tube section, a second tube section mounted to said first nozzle assembly opposite said first tube section, and a second nozzle assembly mounted to a distal end of said second tube section;
• each of said nozzle assemblies including one or more nozzles adapted for directing a stream of cleaning media into the internal passages of said heat exchanger;
• said first nozzle assembly having at least one cylindrical tube with a first end and a second end, said first end of said cylindrical tube being permanently mounted to said first nozzle assembly, and said second end of said cylindrical tube engaging said second nozzle assembly, said cylindrical tube defining a first high pressure passage for conducting cleaning media from said first nozzle assembly to said second nozzle assembly;
• said first nozzle assembly further including a shield assembly extending therefrom for supporting said cylindrical tube within said second tube section.
• said lance tube assembly further including a second high pressure passage for conducting cleaning media from said first cleaning media supply to said first nozzle assembly.