Sulfur trap sealing device
OwnerStrom W. Smithinventor
Life of this patent
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Abstract
A sealing device for a sulfur trap includes a float, a counterweight, and a cleaning rod. The density of the sealing device allows flotation of the device in molten sulfur. The counterweight includes a surface to mate with an upwardly extending hollow cylinder in the sulfur trap through which molten sulfur may flow. The sealing device engages the upwardly extending cylinder in a first position and floats in the molten sulfur contained in an upper chamber of the sulfur trap in a second position. The cleaning rod and counterweight contact the sides of the upwardly extending cylinder to prevent buildup of solid sulfur.
Claims5
A sealing device for a sulfur trap of the type comprising an upper chamber for receiving liquid sulfur and process gas and a lower chamber for receiving liquid sulfur said device comprising:
- an opening between said upper chamber and said lower chamber;
- a hollow cylinder extending upwardly from said opening into said upper chamber;
- said cylinder having an upper edge;
- a float;
- said float consisting of a generally spherical structure with a counterweight attached;
- said float and said counterweight having a combined average density less than the density of molten sulfur;
- said counterweight having a beveled peripheral surface and an acute lower extension below said beveled peripheral surface;
- said cylinder upper edge having a beveled upper edge surface;
- said counterweight beveled peripheral surface and said beveled upper edge surface sealingly engaged in a float first position;
- and
- a cleaning rod attached to said counterweight;
- and
- said cleaning rod extending downwardly into said cylinder.
A sealing device for a sulfur trap of the type comprising an upper chamber receiving liquid sulfur and process gas and a lower chamber for receiving liquid sulfur, said device comprising:
- an opening between said upper chamber and said lower chamber;
- a hollow cylinder extending upwardly from said opening into said upper chamber;
- said cylinder having an upper edge having a beveled upper edge surface;
- a float;
- a counterweight attached to said float, said counterweight having a beveled peripheral surface and an arcuate lower extension below said beveled peripheral surface;
- said counterweight constructed to sealingly engage said upper edge in a float first position, said arcuate lower extension extending inside said hollow cylinder in said float first position;
- said float and said counterweight having a combined average density less than the density of molten sulfur:
- said float moveable between said float first position and a float floating position;
- said float laterally moveable between said float floating position;
- a cleaning rod attached to said counterweight;
- and
- said cleaning rod extending downwardly into said cylinder.
Dependencies are inferred from the claim text.