Recently, the Yan'an Coal and Oil and Gas Resources Comprehensive Utilization Project, which was built by the Refining and Chemical Engineering Ten Construction Company, has a 450,000-ton/year HDPE unit extrusion granulator, which has successfully driven and produced qualified products. This indicates that the various units of the project have entered the drive. Feeding stage.
Ten Jianyan HDPE project extrusion granulators started successfully
It is understood that the extrusion granulation unit is the core equipment of the 450,000 tons/year HDPE (high-density polyethylene) unit, and is also the world's largest single-capacity high-density polyethylene production line. Through management innovation and improvement of work efficiency, the project construction efficiency will be improved. The installation process pipeline will be completed with 200,000 diameters, 3,900 tons of steel structures, 267 sets of process equipment, 180,000 meters of electrical cables, and 338,000 meters of instrument cables. At the end of May, the unit was successfully launched for the first time.
At present, the unit is operating normally, and all the indicators have met the design requirements. After 24 hours shift work, the equipment has been ensured to be safe, high quality, efficient and stable. This indicates that China's large-scale mixing and squeezing granulator field The special scientific research results have made new progress again.
In recent years, China has never stopped on the road of localization of large-scale polyethylene continuous mixing and squeezing granulators. From design to development, through technological innovation, it has overcome various difficulties and finally won various patents. Industry blank.
Large rubber and plastics company 30 ~ 350,000 tons / year large extrusion granulation unit passed the acceptance
The Liaoning Province Plastics Machinery Co., Ltd. is responsible for the localization of '30~350,000 tons/year LLDPE double-support continuous mixing and squeezing granulators in Liaoning Province'. The major project of scientific and technological innovation has been completed as early as two years ago. Acceptance work.
It is reported that the large-scale polyethylene continuous mixing and squeezing granulating unit is the key equipment for the million-ton ethylene project. In the past, it was imported 100% domestically. It is a national major equipment localization project. The project started in 2011 and was established in the Sinopec Science and Technology Department. Big Rubber & Plastics Co., Ltd., Beijing University of Chemical Technology and other six companies conduct research on production, education and research, and are undertaken by Dalian Rubber Plastic Machinery Co., Ltd.
In the major granulation project, Big Rubber & Plastics Co., Ltd. completed the whole set of research and development of the whole machine design, manufacturing, installation and commissioning, operation management, etc., realized the intelligent control of the unit's one-button driving, and conquered the large complex surface. Key technologies for design and manufacture of key components such as integral rotors, large barrels, dual output shaft super high torque reducers, large displacement melt gear pumps and underwater pelletizing systems.
After nearly three years of research, Da Rubber & Plastics Co., Ltd. developed and developed the first large-scale polyethylene continuous mixing and squeezing granulating unit with independent intellectual property rights. It was delivered to Sinopec Qilu Branch in January 2013. After nearly three years of operation assessment, it fully meets the user's process requirements, and the operation is stable and reliable.
At the same time, the unit is an important component of the 1.37 million tons of coal-to-olefins project in Zhongtian Hechuang Erdos Coal Chemical Project. It has carried out full load performance test. After application verification, the main performance indicators have reached the international advanced level, and the project unit can be replaced. Imports have a certain positive effect on breaking the long-term foreign technology and price monopoly and promoting the rapid development of China's coal-to-olefins and petrochemical refining and ethylene industries.
In short, in the granulator industry, breakthroughs in technical problems are crucial, and the successful acceptance of special research projects in the field of large-scale mixing and squeezing granulators in China is undoubtedly a major achievement in the industry's scientific and technological exploration. This is of great significance for solving the dependence of China's high-end granulator equipment on importing and breaking foreign technology monopoly. At the same time, it also promotes the rapid development of China's ethylene industry and plastics industry to a certain extent, and makes China's plastic machine industry equipment realize the localization as soon as possible. The vision is just around the corner.