Patent ID: 8308899

Claim:
An apparatus to disrupt smelt flowing from a recovery boiler to a dissolving tank, the apparatus comprising: a shatter jet nozzle assembly arranged to direct a stream of disrupting fluid against the smelt flowing from the recovery boiler to the dissolving tank; a first source of disrupting fluid coupled to the shatter jet nozzle assembly; a second source of disrupting fluid coupled to the shatter jet nozzle assembly, and a valve arranged at or between the second source and the shatter jet nozzle assembly and configured to control a flow of the disrupting fluid from the second source to a nozzle in the shatter jet nozzle assembly, wherein the apparatus has a first operating mode in which disrupting fluid from the first source flows through the shatter jet nozzle assembly and forms the stream of disrupting fluid discharged from the nozzle and the valve is closed disrupting fluid from the second source is prevented by the closed valve from being discharged from the jet nozzle assembly during the first operating mode, and a second operating mode in which disrupting fluid from the first and second sources flow through the shatter jet nozzle assembly to form at least one stream of disrupting fluid and the valve is opened such that disrupting fluid flows from the second source to the shatter jet nozzle assembly during the second operating mode.