[Ten years of development of chemical equipment] 1045-2020 my country successfully developed an extensional rheology screw

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Chemical science and technology has developed greatly in the past ten years. Praise for China's prosperity and strength in the prosperous age. It will be more lively and exciting with everyone's participation. Everyone is welcome to participate in the forum to exchange and discuss. Fire in July, pay attention to fire prevention------------------------------------------------- December 2020. A new screw transformed from extensional rheology technology, a key R&D project established by the Ministry of Science and Technology, has been applied at the Daqing Petrochemical production site. After testing, the new screw was used well, the overall efficiency of the unit was greatly improved compared to the past, and the energy consumption was lower. The quality of the particles produced was ideal and the expected results were achieved. 　 　Extensional rheology application technology is an innovation in the field of energy-saving and efficient extrusion (mixing) systems. It was researched and patented by the team of Academician Qu Jinping of South China University of Technology. Dalian Rubber Plastic Machinery Co., Ltd. signed a strategic cooperation agreement with South China University of Technology, using the company's test center to participate in some project topics and tests, and obtained the exclusive right to use this technology in "large extrusion granulation units, internal mixers" and other products. 　　After the project achieved stage results, Daqing Rubber Plastics actively used Daqing Petrochemical's 70,000 tons/year PE continuous mixing extrusion granulation unit to conduct engineering tests and verifications. In order to complete the replacement of the new screw as soon as possible and reduce the impact of shutdown on user production, Big Rubber and Plastics dispatched an elite team to complete the replacement of the screw in only 3 days. The unit started up smoothly and ran stably. 　　This application of extensional rheology technology verifies the successful development of extensional rheology screws with independent intellectual property rights in my country. The new results have obvious advantages in improving the particle output, quality, energy saving and consumption reduction of domestic petrochemical enterprises' in-service domestic granulation units, and are of great significance to further improving the core technology and market competitiveness of localized granulation units, and promoting my country's high-end petrochemical equipment's voice in the national competition.