Shanhe Smart EBZ260 Cantilever TBM
Features:
The structure of the whole machine is compact, the configuration is high, the driving torque is large, the climbing ability is strong, and the machine has good cutting and stability; it is suitable for cutting coal, semi-coal rock and whole rock. The cutting motor adopts double-speed motor. Coal rock hardness selects the right power cut.
The hydraulic system uses Dr. Rexroth's pumps and pilot valves, with constant power, pressure cut-off, load-sensitive, easy operation and high reliability.
The electrical system adopts a modular design. The operation box has LCD dynamic display self-diagnosis and memory functions, which is more convenient to use and maintain. The oil temperature and oil level automatic alarm system can effectively protect the pump and hydraulic system.
Innovation:
The cutting head and the cutting arm adopt the structure of flanged connection, single spline or double spline transmission, which solves the safety hidden troubles that the cutting head falls and the spline breakage often occurs, and is more complicated to use. Coal mine operation.
Hydraulic tensioning structure. This part of the tensioning device is a patented technology of Shanhe Intelligence. It uses hydraulic cylinders, cards, and springs combined with a tensioning structure. It is more convenient to tension the conveyor scraper chain, effectively reducing the manpower burden, and has a good buffer effect.
The main body of the boring machine adopts a separate structure, which makes it easier to move the boring machine downhole, and alleviates the difficulty in transportation downhole.
The oil tank of the hydraulic system adopts the oiling device, which makes the oiling of the roadheader before and during use simple, fast and convenient. (This article comes from Shanhe intelligent click into Shanhe intelligent online purchase page )
From the side of the ship one or two suction pipes descend to the bottom of the seabed. On the end of the pipe a so-called trailing Drag Head is connected. This head is comparable to a large vacuum cleaner and is trailed along the seabed. In the head there are nozzles connected to a high pressure water installation that are capable of loosening the material on the seabed. Due to lower pressure in the pipe, the material will be sucked inward and discharged in the hopper.
The vessel should always have a positive speed over the ground. It is possible to regulate the density of the sucked substance. If the head is lowered, more material will be sucked but there is a greater possibility of damaging the installation because the material can get stuck inside the pipes. Once the mixture is loaded inside the hopper, the substance will sink and the water is discharged overboard, creating more room for extra substance. A trailing Suction Hopper Dredger is only capable to suck relatively loose substance because the steel teeth are not so big. Harder substances such as rock, or ironbased rock must be destroyed by a cutter.
Photo of our Suction Pipe:
The specifications of our suction pipe
A. General
High accuracy, fully welded, painted construction can be used for trailing suction hopper Dredger , suction pipe plays an important role. It is approved BV
Suction pipe system ensure full control of the drag head on the bottom, transport the dredge mixture to the hopper, then transmit the trailing force from the drag head to the ship and support pipes and cabling.
B. Construction and procedure
The construction is to be built according to the drawing with rules of good workmanship and to be built the longitudinal frame system.
The construction consist big suction pipes, Turning Gland, joint, jet line, Seamless Pipes, supports for cable and hoses, which are carefully manufactured and checked to ensure total length, straightness, symmetry within the specific tolerances.
C. Procedure
Welding seam preparation-Pre roll bending of plate tip-Rolling-Longitudinal welding (SAW),inside then outside-Crossing welding (SAW) between part tubes to form the whole pipe-US testing and repairing-Adjusting-Assemble other part
D. Materials
All fabricated steelwork used in the construction of the suction pipe will be to manufacturing standard of classification society BV, GL, LR, DNV, especially for neck flange.
All steel used to be blasted and shop primed both sides. Using DH36
All materials proposed will be selected to comply with the latest Health and Safety Rules.
Paint systems for hull protection will be of the highest quality (Hempel, Inter, Sigma, Jotun)
E. Welding
All welding will be performed in accordance with drawing and order and UniSite experience and all welding will be continuous and full penetration.
Welding seam preparation, welding method, welding material and consequent preheating temperature acc. to UniSite standards and approved by clients.
F. Workmanship
The workmanship have good marine practice. Care are taken to ensure fair lines, smooth surfaces and neat welding.
G. Main particulars
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MAIN PARTICULARS |
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Tolerance |
High accuracy(ISO2768, ISO5817, ISO13920) |
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Material |
Q345D, DH36 other materials |
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Dimension(L*B*H) |
As per drawing, as large as we can |
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OD |
1000mm-2000mm |
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Weight |
15Ton~70Ton |
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Coating |
Sa2.5 blasted and two or three layers painted with highest quality |
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Marking |
as per clients' requirements |
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Inspection |
material, construction, dimension, welding seam, non defective test, paint inspection |
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Experience |
We made a whole suction system with length 49.3m for world top dredging company. |
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Others |
Recyclable, in line with environmental requirements and standards, and reliable |
Suction Pipe
Dredging Suction Pipes,Suction Tube,Suction Connecting Tube,Pipe Joint
Unisite Group Ltd. , https://www.unisitemarine.com