What is screw ship unloader?

Screw ship unloader is a ship unloader whose main working mechanism is horizontal screw conveyor, vertical screw conveyor and special reclaiming device without flexible traction components. It is a high-efficiency continuous bulk cargo ship unloader.

Spiral ship unloader is mainly composed of vertical wall,Horizontal arm, rotating tower, end screw conveyor and door frame components.

The materials in the cabin are sent to the vertical screw conveyor through the rotary feeding device, then lifted to the end of the boom through the conveyor pipe, and transferred to the boom screw conveyor through the discharge port. Finally, the materials are transferred to the leading edge belt conveyor parallel to the wharf through the horizontal screw conveyor on the gantry.

What are the characteristics of screw ship unloader?

• High efficiency: the screw ship unloader adopts the special structure of forced reclaiming high-speed screw, with high speed and large unloading volume.
• Energy saving: because the transmission parts of the ship unloader are light and can work continuously, the power consumption is saved. The power consumption varies according to the unloading type and rated unloading capacity.
• Environmental protection: dust-free design, each connection point is closed design to prevent dust and material overflow; The reclaimer is embedded in the material to reduce the amount of dust generated by reclaiming. Low noise. The main components have been tested and calibrated by dynamic and static balance. The equipment operates stably and reliably and will not cause noise pollution to the surrounding environment. No sewage discharge.
• Cost reduction: energy saving and working reliability greatly reduce the long-term operation cost of ship unloader. Reduce labor, only one person is needed to operate, while observing the materials in the ship and operating the portable remote control. Save the voyage cost, 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 of voyage cost every day.
• Complete functions: integrated electromechanical design, all controls are controlled by imported PLC programmable controller, with convenient program modification and high degree of automation. It has a variety of safety protection functions such as mechanical protection, hydraulic automatic protection, speed overrun protection, overload protection, electromagnetic braking system combined with frequency conversion and so on.
• Reliable operation: the easily worn parts adopt new materials, new technologies and special structural design, which are suitable for long-term continuous operation in harsh environment and long service life.

Application of screw ship unloader

It is mainly used for unloading coal, cement, bulk grain, chemical fertilizer, potassium salt and other bulk materials.

About PT. NAR

PT . NAR is a company that provides all kinds of conveying equipment and conveying accessories. And we have different kinds of conveying equipment, such as telescopic belt conveyor, roller conveyor, ship loader and so on. Our technicians can provide satisfactory solutions according to customer needs.

Precautions for conveyor operation

• Before using the conveyor, check whether the operating parts, belt buckles and bearing devices are normal and whether the protective equipment is complete. The tension of the tape must be adjusted to an appropriate degree before starting.
• The belt conveyor shall be started without load. The material can be fed only after the operation is normal. It is forbidden to feed before driving. When several conveyors are running in series, they should start from the discharge end in sequence. Only after all of them are in normal operation can they be fed.
• No pedestrians or passengers are allowed on the conveyor belt.
• Stop feeding before stopping the machine, and stop the machine only after all the materials stored on the belt are unloaded.
• It is forbidden to pull the belt by hand when the belt slips, so as to avoid accidents.

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