Bridge, Screw, Mobile Hydraul and Small Mobile Ship Unloader

• Customization: Available
• After-sales Service: 12 Months
• Warranty: 12 Months
• Model NO.: ship unloader
• Condition: New
• Origin: China

Product Description

Product Description

 

Bridge , Screw,Mobile hydraul and Small mobile ship unloader

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.

Screw ship unloader is a bulk material continuous unloading machine that uses the mechanical rotation of the screw mechanism to lift the material vertically and convey it horizontally to the conveying system on the dock. It is mainly composed of vertical arm, horizontal arm, turntable, gantry and feeder. The vertical arm and horizontal arm are equipped with spiral blade conveyors, and the head of the vertical arm is equipped with a reverse screw feeder. The unloading capacity is 100t/h~3000t/h, and it is suitable for ships of 500DWT~100000DWT.
Application industry:
Screw ship unloaders are widely used in ports, power, chemical, food and other industries. They are suitable for horizontal, vertical or any angle unloading. They are mainly used to transport powdered, granular or small-sized materials with light weight, good fluidity and low abrasiveness, such as cement, coal ash, mineral powder, fertilizer, cereals, etc. During the ship unloading operation, the reverse screw feeder at the head of the vertical arm is first lowered into the material to be unloaded to loosen and take the material. Under the action of the feeder, the material enters the vertical spiral tube. Under the action of the friction between the spiral tube wall and the spiral surface, the material slides relative to the spiral blades, and has a vertical upward movement component, so that it is vertically lifted into the horizontal arm, and then transported to the predetermined material receiving point through the horizontal screw conveyor in the horizontal arm.
Product advantages:
The main advantages of the screw ship unloader are relatively high ship unloading efficiency, simple structure, small mass, good environmental performance, simple operation, small amount of cargo clearance, low noise, etc.; its disadvantages are poor adaptability to large pieces of material, serious wear of working components, high energy consumption, and it is not suitable for conveying perishable, sticky, and easy-to-cake materials.
Product classification:
Screw ship unloaders are divided into mobile and fixed types according to whether the whole machine is movable. Among them, the mobile screw ship unloader has a walking mechanism and can move along the track laid on the dock; the fixed screw ship unloader is more suitable for inland docks, and its effective operating arm width should meet the needs of the ship width, and the operation needs in the direction of the ship length can be met by moving the ship. In addition, there are floating screw ship unloaders installed on pontoons, tire-type screw ship unloaders installed on rubber tires or cars, etc.

The mobile hydraulic ship unloader is a vehicle-mounted ship unloader developed and manufactured by our company. The vehicle-mounted ship unloader can be flexibly moved on the port and is suitable for users who do not have a fixed dock location. The mobile ship unloader can be flexibly moved on the track and is suitable for large docks where the ship unloader operation track is laid.
The mobile bulk material ship unloader belongs to a ship unloader for unloading bulk materials. The ship unloader includes a lower fixed leg, a slewing bearing, an upper bracket, a conveyor slewing bearing, a screw conveyor, a screw reclaimer and a self-propelled device. The lower fixed leg is connected to the self-propelled device, the upper bracket is connected to the lower fixed leg through the slewing bearing, one end of the screw conveyor is connected to the upper bracket through the conveyor slewing bearing, and the other end of the screw conveyor is connected to the screw reclaimer. The ship unloader is easy to fold and move, does not require an additional power source, and saves investment. At the same time, it does not change the characteristics of the self-propelled machinery, overcomes many factors such as environmental pollution, volume, energy consumption, and investment of the grab type, negative pressure type, and scoop conveyor type, and can realize mobile unloading, providing convenience for emergency use at any location.

Product introduction:
The small mobile ship unloader is a special machine that uses continuous conveying machinery to make a head that can lift bulk materials, or has the ability to take materials by itself, or is equipped with a reclaiming and feeding device to continuously lift bulk materials out of the cabin, and then unload them to the arm or frame and transport them to the main conveying system on the shore. The use of a ship unloader can greatly improve the unloading efficiency, and the small dust pollution can keep the environment clean, which is efficient and environmentally friendly.
Product features:
1. High efficiency
Due to the use of a special structure of forced reclaimer and high-speed screw, the material is lifted quickly, so the unloading capacity is large, and the actual unloading capacity is greater than the rated unloading capacity.
2. Energy saving
Because the transmission parts are light and can work continuously, it saves electricity. Its power consumption varies with the type of unloaded goods and the rated unloading capacity, but the average power consumption is 20~28% of pneumatic unloading.
3. Environmental protection
Dust-free design, all connection points are closed design, which prevents the overflow of dust and materials; the reclaimer is buried in the material, thereby reducing the amount of dust generated by reclaiming. Low noise, the main components have been tested and calibrated for static and dynamic balance, the equipment runs smoothly and reliably, and will not cause noise pollution to the surrounding environment. No sewage discharge.
4. Reduce costs
Energy saving and work reliability greatly reduce the long-term operation cost of the ship unloader. Reduce labor, only one person is needed to operate, while observing the material situation in the cabin, and operating the portable remote control. Save voyage fees, the continuous and efficient unloading performance of the ship unloader greatly shortens the unloading time, and can save thousands or even tens of thousands of yuan in voyage fees a day.
5. Complete functions
The overall mechatronic design, all controls are controlled by imported PLC programmable controllers, the program can be easily modified, the degree of automation is high, and it also has mechanical protection, hydraulic automatic protection, speed overlimit protection, overload protection, electromagnetic and frequency conversion combined braking system and other safety protection functions.
6. Reliable operation
The wear-prone parts adopt new materials, new processes and special structural designs, which are suitable for long-term continuous operation in harsh environments and have a long service life.