en.Wedoany.com Reported - At 9:00 AM local time on April 20, the 615 to 617 thickener bridge deck lifting operations for the first phase (2 million tons of potassium chloride) of the Bougou-Massi Potassium Salt Mine project in Congo (Brazzaville), undertaken by the Southwest Branch of China Minmetals 23rd Metallurgical Group, were successfully completed. This milestone marks the official transition of the project from the building steel structure construction phase to the mechanical and electrical engineering installation phase.

Each of the lifted thickener bridges measures 41 meters in length, 3 meters in height, and weighs 41 tons. Targeting the characteristics of large-diameter tank components, the project team formulated a specialized lifting plan termed "dual-crane coordination, tandem hoisting and positioning." They rented two large truck cranes with capacities of 160 tons and 100 tons for local collaborative operation. Except for the general crane commander, all personnel involved were local employees from Congo (Brazzaville). The thickener is the core concentration equipment in the potassium fertilizer production process, and its installation precision directly affects the operational stability of the entire machine. This lifting operation successfully tackled a critical challenge in the construction of this steel structure.

Before the operation, the project team organized comprehensive technical briefings, safety training, and simulation drills, using unified bilingual work instructions (Chinese and French). At the command of the general director, the two cranes worked in tandem, smoothly adjusting the bridge's attitude in mid-air before precisely positioning it onto the designated supports. The entire lifting process was safe and controllable, validating the project team's construction organization capabilities and technical expertise in the installation of ultra-large equipment.

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