Daqing Petrochemical Plastic Factory low-pressure device has three production lines, including A line to specialize in the production of low-pressure high-density polyethylene resin HDPE-5000S-based. This production run for 31 years of production line 'Bao knife' is not old, this year's production run another success.
As of October 23, the cumulative production of HDPE-5000S products 63,000 tons, continuous safe operation of 225 days.
Low-voltage device rotating equipment, are used for more than 30 years of equipment, a few years ago due to the device running a long time, equipment aging, some technical bottlenecks seriously constrain the device to run a long period of stability, to bring the risk of production control. Personnel to the same kind of device site visits, scientific demonstration, the use of large maintenance opportunities for technological transformation, so that the old device glow youth.
In order to solve the problem of mother 's liquid' embolism ', the technician will change the mother - Phenomenon, staff control is also more convenient. Granulation section of the bag filter for the overall update, the use of the cycle from the original six months to three years.
From the extensive to the fine, from the random to the science, by the plant is the 'self-examination to change the main content' of the localization management, to achieve no man control things, no man control things. The technician's inspection, respectively, from the breadth and depth of the two levels of control device to run.With the weekly development of the professional joint inspection, the site of the pulse, interrogation, so that the three-dimensional, full coverage this year, the technician in the inspection process , In the control room DCS operation screen, it has been found D-223 tank level and mother liquid table failure, the operation signal false instructions, to avoid the occurrence of two accidents.
Since the beginning of this year, with the cracking of two sets of devices (E2) drive, crack three sets of devices keep pace, the supply of ethylene is sufficient. Plastic factory in the product optimization at the same time, as much as possible to eat with ethylene, not due to unplanned parking reasons The upstream ethylene plant down or stop the first eight months of production of 747,000 tons of polyethylene products, a record new record, which is mainly due to the plant ahead of the layout, punched, flexible and efficient implementation of maintenance, processing device exists Problems, hidden dangers, bottlenecks, devices installed lightly, high-load production.
It is reported that, for the pressure of ethylene cans, low-voltage device A line to implement a 'lightning' maintenance. Maintenance time is only 6 hours, the centrifuge replacement belt, polymerization reactor agitator filling grease, granulation section replacement pellet head , From the pre-polymerization system to the post-granulation section, the key units are checked again, the project is not due to short time and discount.
'To ensure that the maintenance of the' hot work 'is highly efficient, root is the previous maintenance program preparation, material preparation and other' cold work 'done in place, no omission, lies in the coordination of the professional tacit understanding.' Low pressure workshop director Zhang Xilai said.
