6 sets of production plants in Qilu Rubber Factory are shut down for maintenance without leaving hidden dangers

According to the company's unified deployment, the Qilu Petrochemical Rubber Plant 6 sets of production equipment have been shut down for maintenance
.
At 8 o'clock on July 31, the acetonitrile extraction unit of the plant was first shut down.

"In the factory, the three sets of acetonitrile, etherification, and butadiene equipment were technically modified in advance to meet the requirements of environmentally-friendly shutdown
.
The three sets of acetonitrile, etherification, and butadiene devices were not able to fully realize the technical transformation of the equipment to meet the requirements of environmentally friendly shutdown .

In order to achieve safety and environmental shutdown, the plant extended the processing time and steadily promoted maintenance in accordance with the shutdown procedures
.

They emptied the material storage tank in advance, lowered the liquid level of the device's liquid material before stopping, and shortened the system return time
.
At the same time, when the system is replaced with nitrogen, the workshop actively does a good job of material recovery, and introduces the waste gas generated during the shutdown process into the benzene-butadiene waste gas device for treatment, so as to achieve discharge standards

On August 4, the rubber plant began to stop collecting steam from the thermal power plant, and only kept the steam from the refinery power station to reduce the loss of steam pipelines
.
After the device was shut down, the factory production technology department communicated with the rubber water workshop of the water supply and drainage plant in time, and switched the large and small pumps to run in turn according to the load situation, effectively reducing the energy consumption of the device

During the shutdown period, the Shunding workshop of the plant implements a three-level on-site inspection system for workshop leaders, technicians, and monitors to ensure that various safety and environmental shutdown measures are implemented
.

After the Shunding plant was shut down, after 2 days and 2 nights of process treatment, on August 2nd, the emptying and replacement of materials was completed
.

"At present, all the materials in the device have been emptied.
The airtight cooking operation will be officially implemented today.
During this period, the workshop will recycle all the materials in all equipment pipelines to achieve the goal of safe shutdown
.
" August 2, Shunding Feng Shuili, deputy director of the workshop, instructed employees to stop the car step by step at the inspection site

"After the polymerizer process is processed, the solid content of the kettle washing water should be less than 0.
2%, and the combustibles after the equipment pipeline should be less than 0.
2%.
The workshop will take samples and analysis at any time according to the passage of water washing and cooking time, and it is necessary to achieve environmentally friendly shutdown.
, And reduce energy consumption
.
” On August 5, Shi Yanqun, deputy director of the styrene butadiene workshop at the rubber factory, introduced

At the installation site, Wang Bin, the team leader of the workshop, led the staff on duty to empty the polymerization inhibitor system, and connected a temporary hose to introduce the gas phase into the venting system to prepare the system for airtight cooking

The workshop has discussed the environmental protection shutdown program many times, docked the process on the spot, and implemented various environmental protection shutdown measures

　　In the material emptying stage, after the material is washed, it must be processed and recycled in the system.

　　At the same time, they strictly follow the cooking plan, and connect the pipelines and equipment that are not connected to the venting system to the venting system through the leaching connection pipeline to achieve environmentally friendly disposal

　　In accordance with the principle of “completely emptying, closed cooking, orderly discharge, and standardized disposal”, the rubber factory strengthens environmental supervision during the shutdown process, and strives to achieve stable shutdown, emptying, and clean discharge, leaving no hidden dangers or dead ends.
, High-quality delivery and overhaul
.

　　As of August 9th, 4 sets of butadiene, acetonitrile extraction, etherification and butadiene waste gas units in the rubber plant have been safely delivered for overhaul
.
(Zhao Bing and Zhu Zuoqing)