Successful hoisting of steel lining module 4 of Unit 4 by Zoomlion crawler crane in Changjiang Nuclear Power Plant, Hainan

March 17, 8:08，Hoisting in place of steel lining module 4 of inner shell of nuclear island reactor building of Hainan Changjiang Nuclear Power Unit 4，It lasted 3:10，Safety of integral hoisting process、Controllable，ZoomlionZCC32000 Crawler Crane successfully carried out the task，The assisted construction node was completed 25 days ahead of the special plan.，It has laid a solid foundation for the realization of double-stack dome hoisting in the year.。

△Zoomlion Crawler Crane is being hoisted（Pictures from“China Nuclear Machinery Engineering Co., Ltd.”）

The steel lining is the main component of the containment vessel of the reactor building of a nuclear power plant，Its hoisting and installation is an important milestone in the construction of nuclear power plants.。The steel lining module 4 of Unit 4 is integrally molded as an eccentric drum.，Module diameter 46.8 meters，The overall height is nearly 10 meters.，The total hoisting weight is about 240 tons.，The positioning elevation accuracy is required to be 24.935 meters。

Because that module four has the advantage of large size,、The weight is heavy、Thin wall and small rigidity.，And that lif height is high.，High positioning accuracy and difficulty，The requirements for hoisting technology and equipment performance are extremely stringent.。At the same time，The construction site has 3#And 4#Two nuclear islands，There is a compact site、There are many Tower Cranes、Multiple unfavorable factors such as intensive working surface。Before hoisting，The project department adopts simulated hoisting.、Repeated verification of trial hoisting method，According to ZoomlionZCCPerformance parameters of 32000 Crawler Crane，Scientific formulation of hoisting technical scheme。

The ring sling is used in this hoisting.，Hoisting at multiple points and adding counterweight，Make sure that the center of gravity coincides with the centroid when the module is lifted。At the scene，ZoomlionZCCThe 32000 crawler crane completed the hooking at one go.、Luffing、Turn around、Walk、Hook dropping and other actions，The whole process is safe and controllable、Precisely in place，Complete the task successfully。

△Zoomlion 2000 ton crawler crane is being hoisted.（Pictures from“Hainan Nuclear Power”）

Changjiang Nuclear Power Plant in Hainan“Serve”Period，ZoomlionZCCThe 32000 crawler crane constantly refreshes itself.“ Resume ”，Hualong No.1steel lining module 1 and module 2 have been completed successively.、Hoisting of steel lining module 4 of Unit 3, etc.，The world's first three-layer ring section combined steel lining module of Hualong One——The third steel lining module of the nuclear island of Hainan Changjiang Nuclear Power Unit 4 was also successfully hoisted by it.。In the twilight and dusk of the day，Aurora Green Accompanies Nuclear Power Plant to Grow Step by Step，Continue to help the vigorous development of China's nuclear power industry。

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