Patent ID: 7112308
Filing Date: 2006-09-26
Classification: B01D,C01B

Abstract:
1. 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.