[Ocean Chemical News] Zhongke Refining and Chemical has begun production and installation of the regenerator and settler (two units) with the largest design capacity in China.

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On December 26, banners were hung high, colorful flags were flying, and firecrackers were blasting at the 4.2 million tons/year catalytic cracking unit of the Zhongke Refining and Chemical Project undertaken by Shijian Company. This catalytic cracking unit with the largest designed capacity in China currently has two core equipment, the riser reaction regenerator and the settler (two units), started to be manufactured and installed. The catalytic cracking unit is the core of the refining project, and the "two vessels" are the heart of the catalytic cracking unit. It weighs 2,492 tons in total, of which the regenerator is 47 meters high, has a maximum diameter of 15.8 meters, and weighs 1,817 tons. It is a first-class pressure vessel. ； The settler is 65 meters high, has a maximum diameter of 9 meters and weighs 675 tons. It is a Class II pressure vessel. “The technical quality requirements of "Two Instruments" are high, the on-site production space is small, and the construction organization and safety and quality management are very difficult. According to the design requirements and site conditions, and based on the previous experience of installing "two vessels" in the construction of catalytic cracking units, Shijian Company carefully organized and planned it, and optimized the construction plan many times. It decided to divide the regenerator into 4 sections for assembly on the ground, and divide the settler into 5 sections for assembly on the ground. The top head section, cone section, and lower section of the regenerator with many internal parts, as well as the top head section and stripping section of the settler were modularized on the ground. The cyclone separator, large hole distribution plate, main air distribution pipe, internal riser and other facilities that are difficult to install are assembled on the ground and then modularized and hoisted in sections. This reduces the workload and difficulty of high-altitude installation, reduces safety risks and costs, and improves construction quality and efficiency. In addition, automatic submerged arc welding machines are used to weld the plate seams of the "two device" shell sets that require a large amount of welding to improve welding quality and efficiency. At the opening ceremony, the owners of Zhongke Refining and Chemicals, petrochemical quality supervision substation, Luoyang engineering contractor, Yangzi Petrochemical Supervision and other leaders all put forward high standards and strict requirements for the safety, quality, progress and schedule of the "two tools" construction, and emphasized that: “The start of the installation of "two devices" marks that the equipment installation of the Zhongke Refining and Chemical Project has entered the full start-up stage. The construction period is tight and the tasks are heavy. We must adopt target management measures, carefully organize and coordinate, and strive to create a model of safety, quality, and progress. The "Iron Army" of the Ten Constructions must be carefully organized to build the catalytic cracking unit into a safe, environmentally friendly, and excellent project, and submit a satisfactory answer to the party group of the group company. Wang Youzhao, project manager of Shijian Zhongke, solemnly promised: We must live up to the care and expectations of our superiors, complete the installation tasks on time, and achieve the construction period target of starting the hoisting of the "two devices" in early April next year and capping it at the end of August, and make the installation of the "two devices" a high-quality, high-quality, and first model project. (Gao Mingliang)