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The "Special Oversized Part" of the large bucket wheel stacker-reclaimer from Changzhong Machinery has been successfully shipped
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Release Date:
2022-09-07 08:49
On August 18, the first piece of equipment independently developed and manufactured by Hunan Changzhong Machinery Co., Ltd. Net weight reaches 700 tons 、 with a turning radius of up to 50m large bucket wheel stacker-reclaimer — Sanning Chemical Project successfully completed the shipping work, marking a new milestone in Changzhong Machinery's independent R&D capability, production manufacturing, and shipping process level.
Sanning Chemical is a high-tech enterprise with revenue exceeding 10 billion yuan and ranks among China's top 200 chemical companies. It is a large enterprise integrating coal chemical, phosphate chemical, petrochemical, fine chemical, and industrial services. In recent years, the company has continuously expanded its scale. Changzhong Machinery cooperated with Sanning Chemical for the second time to undertake the manufacturing task of "Four Supers" large equipment. The main components of this equipment are heavier, longer, wider, and taller than conventional ones, and the manufacturing difficulty is high. Among them, the largest component weighs 87 tons, the longest component is 50 meters, the widest component is 8 meters, and the tallest component is 7 meters. The equipment's stacking and reclaiming capacity is 1500 tons/hour.
Since the project started, all departments have collaborated and adhered to the principle of "full production, ensuring quality, and on-time delivery." Especially the production system faced various difficulties during the production process, such as challenges brought by welding deformation, installation difficulties, and transportation problems. They carefully planned, strictly implemented, and reasonably arranged and deployed each production process. The technical and production departments closely cooperated to optimize the coaxiality, positional accuracy, and structural deformation of key main components. The upper structural parts were pre-assembled in the workshop to avoid rework and repair losses during installation, improving the on-site installation quality and efficiency. Since most main components are super-limit, highway transportation was very difficult. Transportation approval and time took more than one month, and transportation costs were uncontrollable. Based on the dimensions and weight of these oversized parts and the customer's location, a comprehensive cost and time comparison of water and road transport was calculated, and water transport was finally chosen.
Finally, with the joint efforts of company leadership, the production department, and related departments, the loading and shipping work was successfully completed at 10 p.m. on August 18. All oversized parts arrived at the designated destination smoothly on August 23, shortening the planned road transport time by more than 20 days. The project’s production, manufacturing, and "Four Supers Transportation" plan were successfully completed, delivering satisfactory results to the customer and presenting a grand gift to the 20th National Congress of the Communist Party. 