| Definition |
The technology of submerged arc welding is also used in the steel pipe. The main function is mainly used to clean the transport of sediment, mud and other mixed steel pipe.The purpose is: excavated harbor basin, the entrance channel, land reclamation to build a wharf, the coastal city of port and harbor industrial area,land and recreational land, Coastal Conservation, flood control and water reservoir dredging, rivers and lakes, water environment improvement and ecological restoration and water pipeline construction and ditch landfill. |
| Purpose |
Dredging pipe is widely used in the beach, river, waterway, urban environmental protection, construction and other fields. |
| Manufacturing process |
Mainly used steel pipe Mainly for the spiral steel pipe, seamless pipe and welded steel pipe. Seamless steel tube Tube - Test - - Test - heating - stripping - Pickling - Mushroom - perforation repair - Welding - Cold - air lubrication solution - - pickling pickling passivation - Test Welded steel pipe Strip steel - Inspection - shear - length - qualitative - Welding - grinding (seamless) - fixed size - Inspection |
| Mechanical equipment |
The dredger, according to the working principle and the soil material conveying mode, divided into mechanical and hydraulic. Mechanical type dredger with bucket or shovel directly from Underwater Digging and lifting earth material, a chain bucket, bucket, bucket, bucket wheel etc.. Hydraulic dredger mud flushing or cut mud with reamer, rake head with high pressure water, then use the mud pump for pumping slurry, the dredging pipe transport emissions, also called suction dredger, a cutter suction, suction, reamer pneumatic etc.. The dredger is divided into self-propelled and non self propelled, non self propelled tug to haul. Water operation ship, such as survey ship, crane ship, drilling blasting ship, anchor boat, etc.. The auxiliary ship, including tugs, barges and freshwater supply ship, barge, barge, barge and ship life etc.. The buoy, pipeline and other ancillary equipment. Selection of dredging equipment, selected the main dredger first, then according to the matching with other auxiliary ships, dredge fleet. |
