IP Library › Granted Patent US 7,198,206
Granted Patent B2
US 7,198,206 · App. 10/909,495 · Granted Apr 3, 2007

Compact gassing lance

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Quick Facts
Patent No.
US 7,198,206
App. No.
10/909,495
Granted
Apr 3, 2007
Kind
B2
Abstract

A compact gassing lance including tubing having a tubing plenum and a distribution opening; a supply line operably connected to supply gas to the tubing plenum; and a screen attached to the tubing over the distribution opening and forming a screen plenum; wherein the screen plenum receives directional gas flow from the distribution opening and laminarizes the directional gas flow.

Claims (14)

1. A compact gassing lance, the lance comprising:

tubing, the tubing having a tubing plenum and a distribution opening wherein the distribution opening direction is 45 degrees from a product flow direction;

a supply line, the supply line being operably connected to supply gas to the tubing plenum; and

a lance head surrounding at least a portion of the tubing including the distribution opening and the lance head including a flow deflector and a screen, the screen being attached to the lance head over the distribution opening and forming a screen plenum;

wherein the screen plenum receives directional gas flow from the distribution opening and laminarizes the directional gas flow.

2. The lance of claim 1 wherein the tubing cross section shape is selected from the group consisting of semi-circular, square, rectangular, triangular, ovoid, ellipsoid, and polygonal.

3. The lance of claim 1 wherein the tubing is made of a material selected from the group consisting of non-ferrous metal and stainless steel.

4. The lance of claim 1 wherein the tubing has an outer diameter between 1/4 and 1 inch.

5. The lance of claim 1 wherein the distribution opening comprises a plurality of holes.

6. The lance of claim 1 wherein the screen comprises a multi-ply wire screen.

7. The lance of claim 1 wherein the screen has between 2 and 10 plies.

8. The lance of claim 1 wherein the screen has a mesh size between 10 and 100 microns.

9. The lance of claim 1 wherein the screen is made of a material selected from the group consisting of non-ferrous metal and stainless steel.

10. The lance of claim 1 wherein the screen plenum cross section shape is selected from the group consisting of semi-circular, square, rectangular, triangular, ovoid, ellipsoid, and polygonal.