September 14，With the precise placement of the last beam，It lasted 26 days，92 cranes in total，Ningxia Xinzerun Hoisting Co., Ltd. has successfully completed the hoisting task of 750 KV frame for the new project of Lanlin 750 KV Substation in Dingxi City, Gansu Province.。Zoomlion participated in the hoisting operation.ZAT5000HAndZAT1300VTwo all-terrain cranes。

Lanlin 750 KV Substation New Project，As a key project of the National Energy Administration to improve the main grid in 2020,，It is also Gansu Power Grid.“Fourteen five”The number one project in the opening year。According to statistics，There are 92 hoists in the frame hoisting of the project.，The heaviest hoisting weight of the project monomer is 80.86 tons，The maximum hoisting height is more than 60 meters.，The maximum hanging point of the portal frame is 43 meters.，The maximum span of steel beam is 44m.，Total weight 2991 tons。It is the project with the largest total tonnage of 750 KV substation frame hoisting in Gansu Province at present.。

  

High requirement for accuracy of frame assembly，Docking is difficult。There are many high-altitude operations，The security risk is high，It is the difficulty of this hoisting.。In order to be able to complete the lifting task on time，Ensure the construction rhythm。The project construction department has specially formulated special safety measures.，Ensure the safety and stability of the hoisting process，The final choice is to adopt Zoomlion.ZAT5000HAndZAT1300VTwo all-terrain cranes for lifting operation。

  

September 14, 6 a.m.，All operators and commanders involved in the lifting work have been in place.，Orderly start the final inspection before lifting。07:26，The project commander gave the order，The crane slowly lifts the last beam.，Trial lifting—Promote—Luffing—In position—Drop hook，The whole process is smooth and precise。The crane first lifts the beam to a height of 43 meters.，Steady the beam again.“Located”To the frame columns on both sides，Then the staff connected the fixed beam and the frame column at high altitude.。

  

In this hoisting task,ZAT5000HIt perfectly demonstrates the stability and accuracy in high-altitude operation.。The hoisting task was completed in the praise of the field staff.。ZAT5000HIt is a 500-ton all-terrain crane developed by Zoomlion.，It has unique advantages in bridge hoisting and structural frame hoisting.。“5+2”Dual-arm working mode，Can adapt to that requirement of various working condition；Section 5 62.5mMain arm ，Section 7 85mMain arm，And also has a short-arm lifting load.，The advantage of long arm hanging high and far，Operating radius up to 78 m。The actual lifting torque is up to 1600 tons.，It can meet the requirements of 130-ton bridge、Demand for independent lifting of 140-ton shield，It not only reduces the transportation cost, but also improves the transfer efficiency.。

 

The new project of Lanlin 750 KV substation has been completed in an all-round way.，It can solve the problem of 330 KV multi-section heavy load in the central power grid.、Short-circuit current exceeding the standard，At the same time“Hexi Corridor Ecological Economic Zone”It provides an important power supply point for construction and power transmission.。In the future, Zoomlion will also uphold the spirit of overcoming difficulties passed on since the 18th National Congress.，Keep pushing“Hexi Corridor”——“The Silk Road Economic Belt”Construction and development。Gong Chong Wei Zhi，Ye Guang Wei Qin，Zoomlion Crane will also continue to support the steady progress of national infrastructure.，Go to the world。