Shenzhen Nuobashi Trading Co.,Ltd

Product introduction:
The bridge grab ship unloader is a bridge crane that uses a mobile trolley to drive the grab to grab materials from the cabin and unload the materials into the onboard hopper. It is a bulk intermittent (or periodic) ship unloading machine. It is mainly composed of metal structure, mechanism, and electrical control system. The metal structure mainly includes the main beam, gantry, and pull rod; the mechanism mainly includes the lifting mechanism/opening and closing mechanism, the trolley running mechanism, the trolley walking mechanism, and the arm pitching mechanism; the electrical control system mainly includes the power supply and distribution system, the drive and control system, and the protection system. The bridge grab ship unloader can be divided into self-propelled and traction types according to the driving mode of the trolley.
Working characteristics:
Through the separate or combined actions of the lifting mechanism/opening and closing mechanism and the trolley running mechanism, bulk materials are grabbed from the cabin and fed to the terminal conveyor system through the hopper of the ship unloader, realizing the unloading operation at the front of the terminal, and the covering operation of the cabin is realized through the trolley walking mechanism.
Technical parameters:
Including productivity, outreach, track gauge and base distance, lifting height, wheel pressure, etc. The rated productivity is 400t/h~5000t/h, and it is advisable to design it according to the preferred values ​​of "Bridge Grab Ship Unloader" (GB/T 26475-2011). The outreach should be determined comprehensively based on factors such as the width of the designed ship type, the distance between the waterside track and the front of the dock, and the thickness of the rubber fender.
Product advantages:
Bridge grab ship unloader is the main bulk dry bulk cargo unloading equipment at home and abroad, especially for coal and ore unloading terminals. It has high unloading efficiency and is suitable for a wide range of ship types. In recent years, 400,000-ton ore ships unloaded by ports such as Qingdao Port and Dalian Port in China all use bridge grab ship unloaders. Compared with continuous unloading machinery such as chain bucket unloaders and bucket wheel unloaders, bridge grab ship unloaders have more mature manufacturing technology, higher reliability, strong adaptability to cargo types, and are easy to use and maintain. The main disadvantages are that grabbing and unloading easily generates dust during operation, the grabbing bucket and traction wire rope are easy to wear, the bulk cargo clearing capacity is greater than that of continuous equipment, the deadweight is greater than that of continuous ship unloaders with the same unloading efficiency, the wheel pressure is larger, and higher requirements are placed on the pressure-bearing capacity of the wharf structure.