Optimization measures "new darling" of production market

Daqing Petrochemical Company keenly grasps the golden period of summer production and the favorable opportunity of market recovery, and according to the benefit calculation, optimizes the production plan lean to meet the market demand for high value-added products. As of July 25th, Daqing Petrochemical has increased the output of DNDA8320 linear low-density polyethylene by 4,750 tons this year, increasing the efficiency by more than 3.5 million yuan.

DNDA8320 linear low density polyethylene produced by Daqing Petrochemical Company is non-toxic, tasteless and odorless milky white particles, which not only has high softening temperature and melting temperature, but also has the advantages of high strength, good toughness, high rigidity, good heat resistance and cold resistance, as well as good environmental stress cracking resistance, impact strength and tear strength.

DNDA8320 is a product brand developed by linear device of Polyolefin Department of Daqing Petrochemical Company, which is mainly used for making toys, bouquets and other handicrafts. Nowadays, DNDA8320 has become the "new favorite" of downstream users. It is used to manufacture and produce cable sheaths, and the market demand continues to rise, which is in short supply.

In order to seize the market opportunity, Daqing Petrochemical actively optimizes production and strives to increase production and increase efficiency. The process route of the full-density second plant is the same as that of the linear plant, mainly producing polyethylene resin as film material, and both are fluidized bed production processes with stronger production capacity, with an annual design capacity of 300,000 tons.

In order to maximize the benefit, Daqing Petrochemical Company took over the baton of DNDA8320 products which were sold well in the production market by optimizing the process measures and giving full play to the scale advantage of the full-density second plant.

Compared with other brands of the plant, DNDA8320 has higher product index and more transition materials produced by switching between brands. Managers refine the brand switching scheme, optimize the switching process measures, reduce the brand switching time and reduce the transition materials.

The powder resin entering the granulating unit is soft and fine, which makes it difficult for the equipment to digest. In order to solve the problem that the powder is easy to accumulate, hang on the wall and bridge, which affects the stable operation of the granulation unit, the technicians added a nitrogen line at the bottom of the blanking buffer tank through technical transformation to cool the powder in the buffer tank.

In addition, in order to ensure the smooth operation of the plant, Daqing Petrochemical also adopted special protection measures for the plant. The shift staff shall timely check and observe the changes of torque and current of the main motor of granulation, and adjust the control indicators in time to ensure that the product quality qualified rate reaches 100%. At present, the production load of DNDA8320 linear low-density polyethylene in the second full-density plant has been increased from 35 tons per hour to 38 tons, achieving the goal of increasing production and income.