| 摘要 |
A radiant burner head assembly comprising a housing, a nozzle conduit 100 located within the housing, the nozzle conduit having an inlet aperture and an outlet aperture for conveying an effluent gas, a nozzle conduit scraper 290A housed in a fixed position within the housing and within the nozzle conduit. An actuator is operable to rotate the nozzle conduit within the housing, around the nozzle conduit scraper, to reduce effluent gas stream deposits within the nozzle conduit. The actuator comprises a concentric gear wheel 160 mechanically engaged with the nozzle conduit, the gear wheel engages with an actuating gear wheel (170, fig 2) which is rotated to provide the rotation of the nozzle conduit. The nozzle conduit scraper is preferably a hollow cylindrical element having at least one aperture (300A-C, fig 6) which includes a cutting edge (310A-C, fig 6) for dislodging deposits. |
