Insulant injection nozzle with air line and end inlets

摘要

The tubular aggregates injection nozzle has a first peripheral connection (3) so arranged at an acute angle to the blow-in direction (R) that the inlet lies upstream of its outlet end. The nozzle has a second inlet (4) for pressurised gas, also at an acute angle ( beta ) to the blowing direction and once again so that its inlet end faces upstream thus mixing the infed aggregate material with the insulating material under the effect of the gas. The extensions of the nozzle inlet axis or axis of inlet connection intersect the longitudinal axis of the injection nozzle (AE). Additional second inlet connections can be provided along the length or periphery of the nozzle to feed gas in either individually or in combination to reinforce the mixing action depending on consistency.