「\"Major Equipment in the Chemical Equipment Industry\" 572-2022 Zhanghua Machinery Hengli (Huizhou) PTA-1 Oxidation Reactor
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Celebrating the 73rd anniversary of our motherland: Looking at the ten-year progress in chemical engineering equipment. Replies will be rewarded; discussions are welcome. ------------------------------------------- At the beginning of 2022, Zhanghuaji (Suzhou) Heavy Equipment Co., Ltd. received good news one after another. Following the successful delivery of four PTA crystallizers in December 2021, the four oxidation reactors, which are key equipment for Hengli Petrochemical (Huizhou) Co., Ltd.’s project with an annual production capacity of 2.5 million tons of PTA-1, were also successfully manufactured. Two of these reactors have already been shipped out as per the client’s requirements. This is the second time that Zhanghua Machinery has been tasked with manufacturing the core equipment for titanium composite plates in a 2.5-million-ton PTA project. The one-time delivery of 4 oxidation reactors with a capacity of 532 tons once again demonstrates Zhanghua Machinery’s comprehensive strength in the pressure vessel industry.
The oxidation reactor manufactured this time has a diameter of 11 meters and a length of 21 meters; each unit weighs 532 tons. The titanium composite panel technology requires a high level of protection for the surface of the titanium plates, as well as strict standards regarding the cleanliness of the working environment； The control of misalignment in weld joint alignment is also quite strict. This type of oxidation reactor is equipped with a stirring shaft suspended at the top. Within the range of nearly 15 meters between the upper head and the cylinder components, the requirements regarding the concentricity accuracy of these components once assembled, as well as the tolerance for the perpendicularity of the plane of the central connection pipe on the upper head to the device’s central axis, are extremely strict. In the face of high standards and strict requirements for product manufacturing, the company begins by conducting evaluations and optimizations from a technical process perspective, in order to develop effective and feasible process solutions. Multiple technical briefings are held during the production phase to ensure that workers understand and master the technical requirements and manufacturing standards. Inspectors focus on identifying the key quality aspects, and each process must pass inspection before moving on to the next one. Thus, thanks to careful planning in the production process, meticulous organization and round-the-clock efforts by the dedicated team, as well as effective monitoring through triple inspections, all technical specifications of the equipment met the requirements after passing the joint inspection by representatives from Hengli’s site owners, the patent holder NVIDIA, and the on-site supervisors.