Injection lance assembly
An injection lance assembly for creating a higher degree of turbulence and dispersion of a treating agent into a fluid stream.
1. An injection lance assembly which can be inserted into a port in ductwork, the lance assembly comprising;
a) a tube for providing particulate flow into a fluid stream within the ductwork;
b) at least two pairs of wings which are deployable within the ductwork and may be inserted through the port with the tube; and
c) means for actuating the wings into a deployed position;
whereby the lance assembly when deployed in the ductwork has a larger diameter than the port.
2. The assembly of claim 1 wherein the means for actuating the wings into a deployed position comprises a cable actuator.
3. The assembly of claim 1 wherein the tube further comprises a tip region, the tip region providing the means for actuating the wings into a deployed position.
4. The assembly of claim 1 , wherein the means for actuating the wings into a deployed position comprises a punch rod.
5. The assembly of claim 1 , wherein the wings pivot radially relative to the tube.
6. The assembly of claim 1 , wherein the wings are attached to the tube.
7. The assembly of claim 1 , further comprising a shroud defining a channel with the tube displaceable therethrough, the least two pairs of wings being attached to the shroud.
8. The assembly of claim 1 , wherein the tube comprises a plurality of tubes.
9. The assembly of claim 1 , wherein the tube includes a plurality of apertures along the length of the tube.
10. The assembly of claim 9 , wherein each of the plurality of apertures is at an axial location corresponding to the at least two pairs of wings.
11. The assembly of claim 1 , further comprising a means for retracting the wing through the port.
12. The assembly of claim 11 , wherein the means for retracting uses the same structure as the means for actuating the wings into a deployed position.