Integral vulcanization construction method for large-diameter rubber-lined pipelines

The invention relates to an integral vulcanization construction method for large-diameter rubber-lined pipelines. The method comprises the following steps that the to-be-vulcanized large-diameter rubber-lined pipelines with qualified rubber linings are connected in series through flanges by using bolts, circular steel rings are arranged at the joints of the pipelines, and the rubber-lined pipelines which are connected in series are placed on a plurality of supporting frames to be fixed; blind plates are arranged at the two ends of the rubber-lined pipelines which are connected in series, circular steel rings are welded to the outer portions of the blind plates, and thermometers, pressure gauges, saturated steam inlet valves and water discharge opening valves are arranged on the blind plates; finally, saturated steam inlet pipelines are connected in a combined mode according to the serial connection shape of the to-be-vulcanized large-diameter rubber-lined pipelines and are fixed insidethe to-be-vulcanized rub