【In-depth Discussion on Modular Construction in HaiChuan】The ethylene column of the ethylene plant in the Changqing Ethane to Ethylene project was lifted in three sections
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The lifting of the ethylene column in the ethylene production unit of the Changqing Ethane to Ethylene project was completed successfully. 2020-07-11 09:49 On July 3, the third section of the ethylene distillation column for this project, with a diameter of 6 meters, a length of 19.895 meters, and a weight of 160 tons, was slowly lifted onto the second section of the column at a height of 76.25 meters; the sections were connected seamlessly in one go. This marked the successful completion of the lifting and installation process for the tallest column in the ethylene production unit of this project, namely the ethylene distillation column, which was under the general contracting of Beijing Global Company.
The ethylene column is the core column in an ethylene plant; its main function is to transfer the light components from the liquid phase of ethylene to the gas phase, while transferring the heavy components from the gas phase back to the liquid phase, thereby achieving separation and increasing the purity of ethylene. The tower is composed of 3 sections in total, with a mass of 525.815 tons and a height of 76.25 meters. The first section was lifted into place on May 30, while the second section was successfully lifted on June 24. The weight of the third section to be lifted this time is 180 tons, with a height of 19.59 meters. For this lifting operation, a 750-ton crawler crane will be used as the main lifting device, along with a 260-ton crawler crane to assist in the lifting process.
Why was lifting carried out directly in the first section below without any protective measures? ? ============================
Without a large crane, lifting has to be done in sections, which is time-consuming, labor-intensive, costly, and delays things.
We’re trying to speed things up and clear the areas around the lifting site as soon as possible.
Both of these projects were constructed by CNPC Sixth Construction Company, also known as Global Sixth Construction, with 4,800 tons being used in Tarim
I guess that’s also the reason; insulation is applied after the first section, and the height isn’t high, so it’s not very difficult