Bridge-type grab ship unloader (bridge-type 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 to the funnel on the machine, which belongs to bulk material batch (or periodic) ship unloading machinery. It is mainly composed of metal structure, mechanism and electrical control system, of which the metal structure mainly includes main beam, gantry, tie rod, etc.; The mechanism mainly includes lifting mechanism/opening and closing mechanism, trolley running mechanism, large car traveling mechanism and boom pitching mechanism; Electrical control systems mainly include power supply and distribution systems, drive and control systems, protection systems, etc. Bridge grab unloader can be divided into self-propelled and towing according to the drive mode of the trolley.
The working characteristics of the bridge grab ship unloader are through the separate or joint action of the lifting mechanism/opening and closing mechanism and the trolley running mechanism, grabbing bulk materials from the cabin and feeding the terminal conveyor system through the funnel that comes with the ship unloader, so as to realize the front unloading operation of the terminal, and realize the covering operation of the cabin through the large cart traveling mechanism.
The main technical parameters of the bridge grab unloader include productivity, extinction, gauge and base distance, lifting height, maximum wheel pressure, etc. The rated productivity is 400t/h~5000t/h, and it should be designed according to the value preferred by the bridge grab ship unloader (GB/T 26475-2011). The exterior extension should be determined according to the width of the maximum design ship type, the distance of the waterside track from the front of the pier, and the thickness of the rubber fenders.
Bridge grab ship unloader is the most important bulk bulk cargo unloading equipment at home and abroad, especially coal, ore unloading terminal, its unloading efficiency is high, suitable for a wide range of ship types, domestic Qingdao port, Dalian port and other ports in recent years to unload 400,000 tons of ore ships are using bridge grab ship unloader. Compared with continuous ship unloading machinery such as chain bucket ship unloader and bucket wheel ship unloader, the manufacturing technology of bridge grab ship unloader is more mature, the reliability is higher, the cargo type adaptability is strong, and it is convenient to use and maintain. The main disadvantage is that the grab and unloading are easy to produce dust during operation, the grab and traction wire rope are easier to wear, the bulk cargo clearing capacity is greater than that of continuous equipment, the same unloading efficiency is heavier than that of continuous ship unloader, the wheel pressure is larger, and there are higher requirements for the pressure bearing of the terminal structure.
Features
Applicable materials: coal, ore, grain, fertilizer, sand, cement clinker and other bulk materials.
Applicable ship type: 1,000~400,000DWT.
Working efficiency: 400~4,000t/h.
Product advantages: modular design, mature and stable technology, flexible dust removal technology.
Applicable materials
Wheat, soybeans, corn, rice and other cement, fertilizer, aluminum powder, soda powder and other coal, yellow sand, ore, aggregate and other containers, liquefied natural gas tanks, etc. (MHC)
){kind=link}