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As of November 19, the 500,000-ton/year styrene plant of Qingdao Haiwan Chemical Co.
, Ltd.
, a subsidiary of Qingdao Haiwan Group, has been running continuously for more than 20 months at 107% overload, producing a total of 955,000 tons of styrene products, setting a record high in China.
The historical record of the largest single set of production capacity, the longest production cycle and the highest equipment utilization rate of the ethylene plant
.
It is understood that due to the demand of the styrene downstream product market, large-scale styrene projects have been introduced in China one after another.
Whoever has good technology, low energy and material consumption, and good operation can win the competition.
In the future, large-scale, economical and efficient The styrene device becomes the protagonist
.
Chase technology
Chase technologyFrom original technology to innovative technology
From original technology to innovative technology"The styrene plant was once called the 'big trouble'.
In order to solve these problems, we not only introduced the American BADGER styrene production technology, but also joined the experienced staff in operating the styrene production plant to continuously improve the process when designing the process package.
Package design
.
The most difficult part of the styrene plant is the anti-freezing and anti-condensation in winter
.
The company also carried out the transformation of the condensate waste heat recovery system in the production process
.
Now the styrene plant is at the end of the catalyst stage, and the easy polymerization of styrene makes the later operation more complicated and difficult
.
Chase two
Chase twoEnergy consumption and material consumption can not be increased
Energy consumption and material consumption can not be increased"When we design the process package, we fully consider energy saving and consumption reduction
.
The styrene plant is designed with two underground tight-draining tanks.
The emptied materials from the ethylbenzene unit and the styrene unit will be firstly discharged into the tight-draining tanks for recycling.
Relying on the workers themselves to use small barrels, like a relay race, the barrels are sent to the close-packed tanks in the tank farm for recycling, and the waste tar that cannot be recovered will be sent to the loading and unloading station and loaded into the tar truck for disposal.
Recycle available products
.
"The high or low oxygen content and the high or low furnace pressure can affect the amount of natural gas to achieve the required furnace temperature.
We have repeatedly tested and concluded that without reducing the load and the device is not interlocked, the dosage ratio It has dropped by 300 standard cubic meters per hour before, and the profit margin has been greatly improved
.
" Technician Liu Wenjie said happily
.
Jin Xilin, chairman of the trade union of the styrene factory, introduced that in response to the problems of high corrosion rate, high turbidity, large dosage of chemicals, and low concentration ratio of circulating water, we have carried out technical research and changed the previous seawater to industrial water, which greatly reduces the Pharmacy usage
.
In addition, when the agent changing manufacturer replaces the agent, the corrosion rate of circulating water is significantly reduced, and the corrosion rate is reduced from 0.
3 mm/year to 0.
015 mm/year, which reduces the corrosion of equipment and prolongs the service life of the equipment
.
chasing lean
chasing leanMake management everywhere lean
Make management everywhere lean "Equipment is the foundation.
The damage rate of equipment in factories in the same industry in China is high, resulting in a long-term failure to increase production
.
How to ensure the long-term operation of equipment requires meticulous management of equipment
.
" Guo Laidong said
.
"Daily inspection is essential.
The company's current intelligent inspection system is very advanced.
The data is entered into the explosion-proof inspection mobile phone and uploaded to the system.
It is very convenient to see if there is any problem with the equipment
.
" Zhang Jianhua, deputy director of the factory The intelligent inspection system is full of praise
.
Guo Laidong said: "The new concept of green development created by the Gulf Group realizes the integration of safety and environmental protection to build an environmentally friendly and ecological modern chemical enterprise
.
Therefore, the styrene plant has been improved from the construction of the main body of the lean team, 6S site management, safety management, and TPM lean equipment management.
Lean management is everywhere
.
