【Major Chemical Equipment】1.45–1 million tons/year polycarbonate extrusion granulation system
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Happy May Day! Reply reward! ---------------------------------------------- The past decade has been a period of rapid development for China’s chemical industry, marked by the emergence of many new processes, products, and equipment. There has also been significant progress in China’s chemical processing equipment, which has contributed to the swift advancement of the petrochemical sector. Here, we have compiled some of the achievements and breakthroughs made by Chinese equipment manufacturers in terms of larger-scale production and increased use of domestic equipment. We invite everyone to share their insights and engage in discussions, to cheer for Made in China and to support the development of chemical processing equipment! ****************** The project was designed and assembled by Tianhua Institute, which was also responsible for the electrical and control systems of the equipment involved in various processes throughout the system. The key mechanical components were supplied by KraussMaffei. This approach not only improved the overall technical performance of the system but also, by leveraging Tianhua Institute’s expertise in local design, electrical and control systems, as well as on-site services, it helped to enhance the quality and reliability of the equipment for customers. It also reduced equipment investment costs, accelerated project construction timelines, simplified communication and coordination tasks for the client, and increased the flexibility in project execution. The successful implementation of this project has enabled Tianhua Institute and KraussMaffei to achieve new breakthroughs in the field of extrusion granulation systems for large-scale polycarbonate plants. In addition, another key unit of this project – the polymerization post-treatment drying system – was also independently designed and manufactured by Tianhua Research Institute, and has been successfully put into operation.
The breakthrough in solving this equipment challenge began with business collaboration among enterprises within China’s chemical industry sector. In 2018, Nantong Xingchen invested in Nantong, Jiangsu, to launch a new generation of polyphenylene oxide production facility with an annual capacity of 30,000 tons, in order to further expand its production capacity. In the construction of this project, Tianhua Institute and Nantong Xingchen embraced the philosophy of \"science first,\" making full use of synergistic effects. They combined Tianhua Institute’s experience and technical expertise in drying, reaction, and process separation – particularly in the drying of polyphenylene oxide resins – with Nantong Xingchen’s strengths in research, development, and manufacturing of new materials. Together, they pursued the development of large-scale drying equipment for a polyphenylene oxide production facility with an annual capacity of 30,000 tons, using cutting-edge domestically developed processes, as part of a national effort to achieve self-sufficiency in such technologies. The two parties promptly established a working group for the localization of drying equipment, engaging in close communication, sharing resources, and implementing targeted measures. The technicians start with small-scale experiments to gradually understand the drying rates and master the mathematical models related to drying, determine the type and specifications of the drying equipment. They then engage in numerous discussions on aspects such as the production process, operational procedures, and product quality optimization, ultimately identifying the key equipment parameters required for large-scale production. During the initial commissioning phase of production, the dryer experienced leakage at the seal. To this end, the technical staff identified the root causes and conducted in-depth analyses; starting with improvements to the equipment’s sealing structure as well as the optimization of process pipelines and operating parameters, the two companies leveraged their respective strengths to complement one another, and ultimately resolved the issue of seal leakage in a relatively short period of time.
Cheer for Made in China, give support to chemical processing equipment