Since the beginning of this year, the high-pressure workshop of the branch of Maoming Petrochemical Company continued to implement meticulous management, promoted the automation of the installation to ensure the long-term operation of the installation, deepened the mini-index competition to help reduce costs and enhance efficiency, and deepened the product development through research and development. Month, Maoming Petrochemical cumulative production of about 374,300 tons of polyethylene, an increase of 13,800 tons, a record high; 1 # high pressure cumulative material consumption of 1000.82 tons / ton, down 0.44 tons / ton, for four consecutive years to stabilize Sinopec similar devices 2 # high-pressure cumulative energy consumption of 186.641 kilograms of standard oil / ton, down 1.867 kilograms of standard oil / ton, nine consecutive years of stable Sinopec similar energy consumption index competition first place, hit the best record in history.
Automated upgrades ensure long-term operation of the unit
Prior to this, since No.1 high-pressure plant was put into operation in 1997, the entire process automation monitoring rate was only 70%. Most operations need to be controlled on site, DCS can not be remotely adjusted, and workers' labor intensity is high, with more complaints. In order to solve this problem, the workshop, through joint research with the branch technology and deepening cooperation with the relevant institutes, upgraded the operation of the installation site into an automated operation, which greatly reduced the labor intensity of workers and at the same time improved the intelligent operation Reduce operational errors and ensure long-term operation of the plant. "Guo Qinsheng, Technical Director of High-Pressure Workshop, talked about upgrading and monitoring automation of the whole process of the plant.
The car will automatically upgrade the device between the investment is the most obvious is the monitoring of hot water systems.Previously, when the device heat exchanger slight leakage, the naked eye can not be observed, resulting in hot water mixed with corrosive hot water pipelines , The need to stop working in serious cases.At present, the workshop can monitor the opening of the pressure control valve of the hot water system through the relevant intelligent system and handle it in time to reduce the loss to predict whether there is a slight leakage in the heat exchanger of the device and cut out the plugging in time, To ensure smooth operation of the device.Since the beginning of this year, No. 1 high-voltage device runs smoothly for over 62 days and No. 2 high-voltage device runs for more than 75 days in long period, both devices break the bottleneck of similar devices in China every month.At present, Device automatic control rate of 96%, smooth operation rate of 98% or more.
Small index race lifting device high load operation
'The outlet temperature of hot water system V1802 is controlled at 185 ° C, the high temperature is controlled at 230 ° C, the first temperature peak is controlled at 295 ° C, and the output per hour can be increased by 0.1 tons.
'Right, by keeping a close eye on the changes of the four reaction temperatures and timely adjusting the amount of catalyst injected, the flow rate of propionaldehyde is controlled, saving energy, reducing consumption and boosting production and increasing efficiency.
October 28, in the No. 2 high-pressure device in the control room, the workshop supervisor Guo Yun and internal exercises Zhou Yaquan discuss in full swing how to optimize the adjustment process parameters, bigger device output.
Since the beginning of this year, the workshop has deepened the potential of small index competition mining equipment and ensured the high load operation of the plant to increase production and increase efficiency. The workshop optimized the selected key indicators of equipment: the reaction temperature peak and the amount of the regulator injected into small competition indexes to enhance the small device index Pull the device yield large indicators.At the same time the workshop followed the requirements of the branch, the device running steadily index in the small index competition to increase the weight, so long-term operation of the device to ensure high load operation.In the first 11 months of this year, two The cumulative production of polyethylene with a high pressure reached 374,300 tons, an increase of 13,800 tons, a record high. The cumulative consumption of 1 # high pressure was 1,000.82 tons / ton, a year-on-year decrease of 0.44 tons / ton, and was stable for four consecutive years. Head; 2 # high pressure cumulative energy 186.641 kilograms of standard oil / ton, down 1.867 kilograms of standard oil / ton, for nine consecutive years steady station Sinopec similar energy consumption index competition first place, the best record in history.
Production and marketing through-train service to enhance product quality
Maoming Petrochemical really deserves to be a model of state-owned enterprises, not only the production of excellent quality of products, and warm and thoughtful service, I hope we can deepen cooperation and seek common development. 'On this day, high pressure workshop craftsmen received feedback from a downstream Pearl River Delta manufacturers .
Previously, the manufacturer reflects the high-pressure workshop production of a certain number of tablets have a yellow phenomenon, resulting in the appearance of the finished product is not transparent enough, I hope the workshop can send technicians to the manufacturers for processing.High-pressure workshop received complaints from manufacturers, Immediately with the Division of Technology, Institute personnel to manufacturers to discuss solutions.
High-pressure workshop after the research found that yellow pellets only when the device is just driving or brand switching, will have a small part of the polyethylene hanging in the low silo wall, this part of the oxidation of polyethylene led to yellow, this part of the pellets Mixed in the superior material, resulting in the appearance of the finished product produced by the manufacturer is not transparent enough.Therefore, high-pressure workshop by close monitoring device driving and grade switching at a special time, the low silo material level control at 60% and multiple cleaning low Sub-bunker, real-time tracking of changes in pellets to ensure zero-oxidation of the yellow particles generated.
High-pressure workshop has always been to maintain a solid service, market visits, tracking feedback, the implementation of production and marketing research train service mechanism, timely feedback, technical problems, develop optimization programs to meet the manufacturers requirements, and comprehensively enhance product quality and market competitiveness.
