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Under the careful organization and vigorous coordination of the Zhongke project of Shijian Company, and the close cooperation of the large-scale hoisting personnel and hoisting machinery of the shipping company, after 20 days of "5+2, white+black" construction by three installation and construction teams , Zhongke Refining and Chemical Project 800,000 tons/year ethylene steam cracking unit No.
1 to No.
6 cracking furnaces, 6 fans, 6 sets of steel structure frames, and 6 cracking furnace chimneys were all hoisted and installed on December 20, thus realizing The perfect capping of the cracking furnace
.
Due to unfavorable factors such as tight construction schedule, heavy installation workload, and highly intensive construction work surface, the 6 furnaces installed above the 42 meters above the outlet flue of the convection section of each cracking furnace are equipped with fans of dynamic equipment, and the ceiling connected to the fans is 60 meters high.
The installation and construction of the chimney and the steel structure frame for strengthening the fan and the chimney have become an important key to the installation and sprint of the six cracking furnaces, ensuring the goal of CCCC and establishing the construction image
.
Shijian Company attaches great importance to this.
Facing the tense and difficult installation and construction at high altitude, it carefully organizes and plans, and continues to successfully implement the modularization strategy.
The fitter technicians lead the fitter workers to transport the 6 parts to the Zhongke site separately on the ground.
The fan, base, motor, upper and lower casings of the inlet and outlet of the fan flue are assembled on the ground as a whole, and then the whole is lifted to a height of 42 meters for installation, and then the outlet of the flue is short-circuited and hoisted in place to connect with the outlet of the fan.
The links are integrated, so that the height of the furnace body rises to 46.
8 meters
.
At the same time, the riveting and welding construction team responsible for the installation of the steel structure assembled the steel structure columns, beams, diagonal supports, etc.
around the fan to install and fix the top chimney, forming a volume of 7 meters long and 6 meters wide on the ground.
, the rectangular steel structure frame with a height of 7 meters, and then hoisted to an altitude of 48 meters with a crane, and welded with the top frame group of the cracking furnace, so that the installation height of the six cracking furnaces was raised to the second highest point of 55 meters.
.
After the installation and welding of the steel frame of the fan flue was completed, the construction teams of Shijian immediately installed the Bagua beams in the steel frame, and quickly lifted and installed a section with a length of 13.
2 meters and a diameter of 2.
6 meters.
The 15-ton chimney was lined with refractory materials.
Under the close cooperation of the large-scale hoisting and hoisting personnel of the shipping company and the 400-ton crane, the chimneys on the top of the six cracking furnaces were installed safely and smoothly, making the overall height rise to 60 meters above the top level.
The construction image of the delivery conditions
.