China Industry News reporter Gao Jingping Correspondent Wang Zhenping
Recently, as a major equipment localization project, the first domestically produced 200-ton/year PP compounding extrusion granulation unit developed by Dalian Rubber & Plastics Machinery Co., Ltd. was appraised in Beijing by Sinopec Appraisal Committee. The unit was in 2010. After the Sinopec Beijing Yanshan Branch was put into operation, various technical indicators met the design requirements and filled the domestic gap. The overall technical indicators have reached the international advanced level. Some of the performance indicators are better than imported similar units, and the economic and social benefits are significant.
Polyethylene (PE) and poly (PP) are the main products of large-scale ethylene engineering. They are the most demanding and widely used basic synthetic resins. Large-size extrusion granulation units are key equipment in large-scale ethylene planting equipment. The core equipment, collection machine, electricity and instrument in ethylene and polypropylene devices are highly integrated, the process flow is complex, and the compatibility is strong. The design, manufacture and operation are difficult and costly.
In the international market, only three large companies in Germany and Japan have large-scale extrusion granulation units with design and manufacturing capabilities. Before 2010, China’s large-scale extrusion granulation units depended on imports for a long time, which severely restricted the development of China’s petrochemical enterprises. The development level of large-scale extrusion granulation units also reflects the latest achievements and comprehensive strengths of a national petrochemical equipment research field. For this reason, the large-scale compounding extrusion granulation units were listed as national major during the “Eleventh Five-Year Plan” period. Technical equipment localization project.
In 2006, Sinopec Group Company initiated the localization project of a 200,000-ton/year polypropylene large-scale extrusion granulation unit. The project was personally presided over by Academician Cao Xianghong, Chief Engineer of Sinopec Group Corporation. It is based on Yanshan Petrochemical's ethylene renovation project and is based on Dalian. Rubber & Plastics Machinery Co., Ltd., Sinopec Beijing Yanshan Branch, Sinopec Engineering Construction Co., Ltd., and Beijing University of Chemical Technology, etc., composed of 6 units, research, research, and joint research teams. Dalian Rubber & Plastics Machinery Co., Ltd. was responsible for large-scale extrusion. The development of the granulation unit is important.
In 2010, the first localized 200,000-ton/year PP compounding extrusion granulation unit was successfully tested in one-time at Sinopec Yanshan Branch. Dalian Rubber Plastics Machinery Co., Ltd. became the fourth largest extrusion granulator in the world. The manufacturer, China's large-scale ethylene equipment manufacturing has entered the international advanced ranks. In recent years, Daxiu has successively successfully developed large pelletizing units with an annual output of 100,000 tons, 140,000 tons, 200,000 tons, 250,000 tons, and 350,000 tons. .