Smelt spout cleaning assembly
AssigneeThe Babcock & Wilcox Company
InventorsMikael Eriksson, Simon F Youssef, Joseph Clay
Life of this patent
Estimating the term…
Abstract
An assembly for cleaning a smelt spout includes a cleaning head, a drive rod connected with the cleaning head, and a pneumatic or other drive connected to selectively extend or retract the drive rod. The drive rod may be connected with the cleaning head by a pivotal connection. The cleaning head may be bifurcated. The cleaning head may include a leading edge configured to engage and clean a spout opening from which smelt from a chemical reduction furnace flows to the spout. The assembly may further include a pivot point and, as the drive selectively extends the drive rod, torque about the pivot point produced by the cleaning head and an extending portion of the drive rod rotates the cleaning head downward to engage a smelt spout.
Claims21
An assembly for cleaning a smelt spout, the assembly comprising:
- a cleaning head;
- a drive rod connected with the cleaning head;
- a drive connected to selectively extend or retract the drive rod;
- a first pivot point at the connection of the cleaning head to the drive rod;
- and
- a second pivot point;
- wherein the cleaning head, the drive rod, and the drive form a swing arm that is pivotable about the second pivot point.
An assembly for cleaning a smelt spout, the assembly comprising:
- a drive rod;
- a cleaning head pivotally attached to the drive rod;
- a drive connected to selectively extend or retract the drive rod;
- and
- a second pivot about which the cleaning head rotates to selectively lower the cleaning head in response to the drive extending the drive rod and to selectively raise the cleaning head in response to the drive retracting the drive rod.
An assembly for cleaning a smelt spout, the assembly comprising:
- a drive rod;
- a cleaning head pivotally attached to the drive rod;
- a drive connected to selectively extend or retract the drive rod;
- a second pivot about which the cleaning head rotates to selectively lower the cleaning head in response to the drive extending the drive rod and to selectively raise the cleaning head in response to the drive retracting the drive rod;
- and
- an extended locking mechanism including:
- a stabilizing rod arranged parallel with the drive rod and attached to the drive rod by a link whereby the stabilizing rod extends or retracts together with the drive rod;
- and
- a collar through which the stabilizing rod passes, the collar secured to the drive.
Dependencies are inferred from the claim text.