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The bucket ladder dredger is one of the mechanical dredgers. A bucket dredger is a stationary dredger that is equipped with a continuous chain of buckets, which are carried through a structure, the ladder. As a kind of mining equipment, as long as it is used for the mining of gold and diamonds.
During dredging, the dredger swings round the bow anchor by taking in or paying out the winches on board. The buckets, which are filled on the underside, are emptied on the upper side by tipping their contents into a chute along which the dredged material can slide into the barges moored alongside.
The chain is driven by the so called upper tumbler at top of ladder frame, which is connected either via a belt to the diesel or directly to an electro motor or hydro-motor.
Bucket dredgers are only used in new or maintenance dredging projects when the initial depth of the area to be dredged is too shallow for trailing suction hopper dredgers and the distances involved are too long for hydraulic transport. For environmental projects, which require the dredging of ‘in situ densities’, the bucket dredger is suitable peace of equipment. When dredging for construction materials such as sand and gravel, or for minerals such as gold and tin ores, bucket dredgers are still frequently used.
SPECIFICATIONS | |||||
NO. | Item | Description | |||
1 | General Specifications | ||||
Max.Working Capacity | 200m3/h | ||||
Max.Dredging Depth | 12m | ||||
Total working power | 162kw | ||||
Water consumption | 500m3/h | ||||
Max. Dredging size | 500mm | ||||
2 | Dredge body | ||||
2.1 | Dimension | ||||
Length | 25m | ||||
Width | 2.5m | ||||
High | 1.12m | ||||
2.2 | Material | ||||
Bottom plate material | 6mmQ235 | ||||
Side plate material | 5mmQ235 | ||||
Deck | 4mmQ235 anti-skid plate | ||||
Framework | 63*4 angle iron and 12#U steel | ||||
Surface treatment | Multi-layer anti-corrosion paint on the surface of hull | ||||
3 | Dredging device | ||||
3.1 | Crane Span Structure | ||||
Main Structure | 1500x1200x5500mm, 16# channel steel | ||||
Conveying arm on water | 7700x1600x600mm, 12# channel steel | ||||
Conveying arm under water | 17000x1500x850mm, 20,12# channel steel | ||||
3.2 | Bucket | ||||
Quantity | 60sets | ||||
Volume | 0.15m3/set | ||||
Dimension | 850x600x400mm | ||||
3.3 | Chain | ||||
Quantity | 120sets | ||||
Dimension | 900mm(H)*120mm(W)*35mm(Thickness) | ||||
Material | High manganese steel casting | ||||
Pin for Chain | 120mm*40mm*Dia. High Mn Steel | ||||
3.4 | Driving wheel(under water) | ||||
Dimension | 1100x1300mm | ||||
Shaft diameter | 190mm | ||||
Thickness | 25mm | ||||
Lifter wheel(upon water) | |||||
Dimension | 1100x1300mm | ||||
Shaft diameter | 150mm | ||||
Reduction box | JZQ1000 | ||||
Power | YC4A100Z 70KW |
Head Dredging Heavy Industry Co., Ltd. is professional in
manufacturing the dredgers, weed harvesters, mining machinery and
greenhouses.
All the products can be customized according to client’s
requirements and formed a complete ship machinery industry chain.
Head dredging products are exported to more than 40 countries, such
as Bangladesh, Brazil, Nigeria, Indonesia, Philippine, etc. Under
advance technology, stable and reliable quality, good
after-service, Head dredging has obtained the honors from the
domestic and abroad customers.
We will continuous invest in manpower material resources and
technical service to help our customers solving dredging work,
water cleaning project, mining separation job, greenhouse project,
etc.