Furnace cover of closed type calcium carbide furnace and process for producing same

The invention provides a furnace cover of a closed type calcium carbide furnace and a process for producing the same. The structure of the furnace cover comprises that: three electrode sealing ring devices are connected to electrode water cooling sealing sleeves; each electrode water cooling sealing sleeve is in welding connection with mounting base plates and water cooling rings of four chargingnozzles, and the water cooling rings are in welding connection with water cooling reinforcing rings outside the four charging nozzles; the water cooling reinforcing rings are in welding connection with a cover top outer ring of the furnace cover by reinforcing ribs; arc pipes are welded between the outer sides of the water cooling reinforcing rings and the reinforcing ribs; a plurality of furnacecover legs are welded on the cover top outer ring of the furnace cover; two layers of stainless steel screens and a screw-threaded round steel reinforcing skeleton arranged between the two layers of the stainless steel screens