QINGDAO HEAD DREDGING HEAVY INDUSTRY CO.,LTD.
Cutter Suction Dredger
Cutter suction dredger is a kind of ship that is widely used in beach dredging projects. It uses the front end of suction pipe. The cutter suction pipe is equipped with a rotating cutter device to cut and agitate the river bottom sediment, and then through the suction pipe, the sl Mud, mud transport, mud unloading and other work processes can be completed continuously at one time. It is a high-efficiency, low-cost dredger and a good underwater excavating machine.
Bucket Chain Dredger
Bucket Chain Gold Dredger is advanced mining joint equipment. It has many advantages, such as, advanced technology, reasonable structure, reliable performance and easy to operation and maintain and so on. As the result of many years test, that's proving: Using this series gold dredger has advantages of high degree of mechanization, large output, less investment and more profit.
Jet Suction Dredger
The jet suction dredger of steel construction, the non self-propelled, dismountable type is able to berth and dredge at any waters both in the coastal area and inland rivers, with similar conditions to that in navigation area "A" or below the "A"-line specified in code for "inland river steel engineering ship manufacture of P.R.China". The dredger can be used to excavate and transport cohesive sediment below the class III specified in code for "dredging engineering construction technical specification" issued by Ministry of Water Resources (MWR) of P.R.China. The dredger consists of a main pontoon and two side pontoons. The construction makes disassemble quickly and easier to transport by road, rail or sea, also more convenient to replace at site. Engine and dredging pump are on the main pontoon. Side pontoons could be used as oil storage tank, ballast tank and dry cabin. The spacious control cabin is ergonomically designed with 360 degree view. All the operation buttons, switches, indicators, gauges are equipped on the control desk. Only two operators can control the dredger in the operation room. Four layers anticorrosive marine paint provide the zinc anode protection to improve effect of corrosion.
Sand Pump Dredger
Sand mining dredger is designed and manufactured with optimized hydrodynamics technology for sand suction and silt clearing. This kind of sand mining dredger is driven by electric motor. The sand mining dredger is suitable for conveying liquid with solid particles including sand, gravel, cinders and tailing etc. The sand mining dredger is mainly used in river, lake sand dredging, metallurgical industry, mining and thermal power plant, etc. It’s wear resistant wet parts are made of hard metal (Chrome alloy). The bearing assembly is composed of large diameter shaft and short overhang, so the sand mining dredger will have long-term bearing life. Sand mining dredger has the characteristics of high efficiency, energy saving, simple operation and easy management.
Multi Function Dredger
Amphibious multi-function dredger adopts the design of buoyancy tank and crawler, which can walk on land and work in water. It is equipped with replaceable working units such as excavating bucket, dredge pump, water weed cutter, collecting rake and T-type cutter, which can complete the operation like excavating, harvesting, mud suction & discharge, and weeds & garbage cleaning etc.
Trailing Suction Dredger
Trailing suction hoper dreger is self -propelled and non -self propelled . the dredging pump drives of front of the screw rake head to chrn . cut and collect to the underwater suction position, and through the suction pipe to absorb the bottom silt, sand and the other loose material with water .and then through to discharge pipe driven by the dredging pump to discharge the slurry to the destination, during dredger working process . in order to increase the mud suction effert . we add the jet in the front of the suction pipu top to increase to the mud concentration . this type of dredger is only suitable for underwater sandy and non-viscous soil , as well as soft and esaily flowing mud.