【In-depth Discussion on Modular Installation of Haichuan Systems】The flue of the cracking furnace in the 21 Taizhou Ethylene Project adopts modular installation

Thread Content

The flue systems for the cracking furnaces in the Taizhou Ethylene Project were installed using a modular approach. On the afternoon of June 5th, with the framework modules for the flue of Cracking Furnace No. 1 being successfully lowered, the first installation of such framework modules for this project was completed – another achievement resulting from the modular construction method used in this project. For the modular construction of the flue frame of this pyrolysis furnace, the conical section of the rear flue and the steel structural frame are first preliminarily assembled at the prefabrication site. After the initial assembly of the frame, it is transported to the construction site, where the remaining steel structures and the leftover parts of the flue are assembled there as well. Ultimately, this results in a large module with dimensions of 30.8 m in length, 3.3 m in width, and 10.4 m in height, and a weight of 116 tons. This module is then lifted to a height of 33.92 m, which is the installation height for the pyrolysis furnace, using a 500-ton crawler crane. The modular construction of this flue frame is a new measure taken by the Taizhou Ethylene Project Team to continue implementing the company’s development strategy of \"improving work efficiency and fostering innovation,\" with the aim of reducing costs and increasing productivity. It took 10 days to assemble the flue frame for this lifting operation until it was ready for lifting; compared to previous construction methods, this approach **saved time and human resources** in assembling the flue frame on the ground. At the same time, the tasks involving working at heights in on-ground assembly are **reduced**, and the use of the new buckle-type scaffolding promoted by the company helps to minimize safety risks during the installation of the flue frame. It makes modular construction more diverse and profound. The hoisting of the flue frame for the pyrolysis furnace in this project has been completed, paving the way for the subsequent installation of the steam drum.