The linear device of Daqing Petrochemical Plastics Factory is currently the only device that can produce DQDN-3711 for a long period of time in China Petroleum. In 2017, the longest operation period is 62 days, and the production of this product is 16,300 tons. On March 10th, the linear device switching number was used to drive DQDN again. -3711 products.
The linear device adopts the unipol fluidized bed process, coupled with the characteristics of large catalyst activity needed for production, low temperature of the reactor during the production process, easy generation of static electricity and other problems, and difficulty in operation control. Since last year, the linear device has also assumed production. The task of high-end brands, these products due to high activity of the catalyst, production more difficult and higher risk.
In order to open the 'last kilometer' of the market with high-end brands, the plastics factory exerts professional skills and experience advantages to resolve various risk factors and stabilize the production of the device.
DQDN-3711 grade products are mainly used for processing and producing geothermal pipes. It is planned to produce for two months and produce 6,000 tons. The product has high requirements for the internal precision of the system. Once the impurity content exceeds the standard, the product quality will be seriously affected, or even no reaction, or High static electricity, powder agglomeration, wall hanging, production difficult to continue.
The Plastics Factory Technology Division organized workshop technicians to earnestly sum up the last successful production experience, formulate a scientific and rigorous drive plan, and use the one-day stop and maintenance before driving to complete the replacement of the blocked E-4002 heat exchanger within a limited time. , Clean up the reactor distribution board, replace the seed bed and other tasks, and adjust the equipment that can easily generate impurities in the device to the optimal state. Then, perform a 72-hour flow replacement to ensure that oxygen, water and other impurities are de-purified. The management personnel are divided into three groups. In the early stage of production, they enter the shift group and shift to the same place. The control is done 24 hours a day, and the operator is observed to adjust the parameters of the reactor to handle dangerous situations at any time.