en.Wedoany.com Reported - The ZHP480 twin-screw devolatilization extrusion granulation unit, jointly developed by PetroChina Lanhai New Materials, Daqing Petrochemical Engineering Co., Ltd., and Sichuan Zhongwang Technology Co., Ltd., recently commenced final assembly at the production base in Dujiangyan, Chengdu, Sichuan. Currently, the unit has completed 90% of its total assembly. As an ultra-large, high-end new materials equipment, the successful development of ZHP480 represents a significant technological leap for China in this field, filling relevant technical gaps and providing core equipment support for the large-scale development of China's high-end petrochemical polyolefin industry.
As a key link in the production of high-end polyolefins via the solution process, the twin-screw devolatilization extrusion granulation unit is the core for achieving large-scale mass production. The newly assembled ZHP480 unit boasts complete independent intellectual property rights, with key components such as the core transmission system, control system, and pelletizing system all achieving domestic production in China. The unit features a screw diameter of 486 millimeters, a maximum processing capacity of 40 tons per hour, and can be matched with industrial installations with an annual production capacity of 200,000 tons or more. Equipped with advanced devolatilization technology, it solves industry challenges such as deep devolatilization of volatiles and collaborative flow field control, with its core performance indicators reaching internationally advanced levels.
The successful R&D of the ZHP480 unit completes the full industrial chain closed loop for China's solution-process polyolefins, from process innovation to equipment matching. This unit can stably produce a full range of products, including medical-grade, optical-grade, and special polyolefins for aerospace applications, addressing the bottleneck in transitioning related materials from the laboratory to industrial production. Due to the significant advantages of domestically produced twin-screw devolatilization extrusion granulation units in terms of procurement cost, delivery cycle, and after-sales operation and maintenance, their application will substantially reduce the production costs of high-end polyolefins, enhance the competitiveness of Chinese manufacturing in the global new materials market, and provide solid material support for key sectors such as photovoltaics, healthcare, and the defense industry.
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