The core component of the coal transfer silo at China Coal Daishan Yushan Power Plant, a conical shell weighing 300 tons, was hoisted into place

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At 10:18 on January 10, 2026, as a 1,600-ton crawler crane carefully placed a 300-ton conical shell on top of the silo’s ring beam, the lifting operation of the core components of the coal transfer silo at the CMDC Daishan Yushan Power Plant, carried out by Company No. 68 of China Coal Construction Group, was successfully completed. This largest coal storage silo of its kind in Asia achieved millimeter-level precise alignment. It is reported that this cone-shaped structure, which serves as the formwork for the concrete structure of the silo dome and as a key support for the upper facilities, has a frustum-shaped design. It is constructed from materials such as rectangular tubes, box girders, and galvanized steel plates. Its diameter at the lower end is 52 meters, 15 meters at the upper end, with a height of 19.5 meters; the total height required for its installation is 57.3 meters. Its area is equivalent to that of 12 standard basketball courts, and the amount of steel used amounts to 300 tons. The diameter of conventional coal storage silo cones usually ranges from 20 to 30 meters, with a weight of less than 60 tons; the cone shell being lifted this time weighs nearly 5 times more than conventional ones. At 8:18 on the day of lifting, the lifting of the cone shell officially began. Through a series of high-precision operations such as lifting, rotating, adjusting the amplitude, and lowering the hook, the conical shell was precisely aligned with the embedded components in the upper part of the ring beam; the final lifting accuracy was kept within 3 millimeters, achieving a placement accuracy on the millimeter level.