| 摘要 |
Sulphur is produced as a by-product during the extraction of natural gas fro m the earth and is usually stored in solidified form in large blocks near the extraction location. In order to conveniently transport quantities of sulphur, it may be melted. The present invention provides an adjustable heating element for use with a solid sulphu r remelter for melting a transverse band of contaminated sulphur ahead of a main heatin g element, the adjustable heating element comprising a series of mutually spac ed melting pipes forming a melting plane smaller than a melting plane of the main heati ng element and for disposition in front of the main heating element; the melting pipes having an inlet for receiving steam therein, and an outlet for discharge of condensate; the adjustable heating element being adjustable to be positioned adjacent a transverse band of contaminated sulphur for enhanced remelting thereof.
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