In the past year, the economic and technical indicators of the first polypropylene plant of the Yanhua Polypropylene Business Unit after the transformation have been substantially improved. By the end of July, the total polypropylene output had exceeded 130,000 tons, and the number of product brands had exceeded 40. The material consumption and energy consumption indicators have been continuously declining. The production of special materials has increased substantially from nothing, and the technological transformation of installations has achieved remarkable results.
Due to defects in design and manufacturing, the P301 frequently malfunctions after the device is started, often causing the device to stop on the entire line. Polypropylene Division organized technical personnel research and research on many occasions and carried out a bold transformation on its sealed purge gas system, eliminating this bottleneck. P304, P305 outlet pipeline is relatively narrow, often due to poor discharge and affect the device load. By carrying out structural improvements, the unit load was increased from the original design of 16.5 tons per hour to the current 20 tons per hour. When the polymerized unit is difficult to produce and has a high value-added random copolymer, it is likely to agglomerate, leading to frequent stagnation of the granulation system designed for the slurry processing unit in the 1970s, and even to polymerization shutdown. The technicians solved the problem of agglomerating by constantly adjusting the process and ensured the smooth operation of the device.
Most of the granulation system used in the renovation project of a polymer plant is an old one, and the new process does not match the old one, resulting in a large proportion of the output of the by-products. Polypropylene Business Unit's Powder Feeding System has shown the best history in the past 0 years. Load level.
The Polypropylene Business Unit took full advantage of the gas phase process production process adopted after the transformation of the plant, and actively carried out the development and production of random copolymer special materials that are difficult to produce and have high added value. Through constant adjustment and optimization of the polymerization process conditions, especially the adjustment of the granulation process conditions, the granulation system can produce high ethylene content products and have successively produced a number of random copolymer special product products and homopolymer special product products. At present, the number of product brands produced by this device has exceeded 40, and cumulative production of special materials has reached nearly 30,000 tons. The proportion of special materials has reached more than 35% in the first half of this year, which has created good economic benefits for enterprises.
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