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Effect of construction environment on dredger

Effect of construction environment on dredger

 Impact of wind and river obstacles on reamers and bearing boxes and their methods:


  Cutter suction dredgers in the construction environment of swelling winds and waves form simple and continuous bumps on the ship. When the reamer is in hard soil conditions, the hydraulic pressure of the reamer is not stable, and even a reamer may be blocked. The reamer head is subjected to unbalanced percussive force, which not only damages the cutter teeth but also damages the back of the cutter, and may cause the fixing bolts of the reamer bearing housing floating seal ring assembly to break, forming a floating seal O-ring extrusion.


Construction team response measures: 1, if necessary, stop the construction. 2. A hydraulic compensator is installed on the bridge to prevent waves. 3, control the depth of dredging. 4. Add anti-blocking hydraulic system procedures.


  Because the construction environments faced by dredgers are different, some soils are soft and some soils are hard. Bad soil quality also has a great impact on mud pumps. Different soil qualities have different amounts of wear on the mud pump. The wear of the mud pump is proportional to the proportion of sediment particles, which is related to the hardness of the soil. The inner wall of the mud pump casing is impacted and flushed by the sand flow thrown by the impeller. There are two kinds of wear methods, one is abrasive wear and the other is shock wear. These bad soil conditions seriously affect the life of the mud pump.


The construction team responds to the following measures: 1. The mud pump burns wear-resistant welding, and the grid welding is used to add application time; 2. The high-chromium cast iron mud pump is selected.


  The construction environment faced by each dredger construction team is very different. Some harsh environments will affect the dredger's hull and reamer, affecting the service life. Therefore, we understand the construction before construction. Environment. To ensure the normal operation of dredgers without damaging dredger equipment


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