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ship unloader for bulk material
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Screw Ship Unloader

Screw ship unloaders are essential for the efficient and continuous unloading of dry bulk materials with screw conveyors. The unloading capacity can reach 1500t/h and it is suitable for ships ranging from 500DWT to 70000DWT.

  • Product Introduce
  • Video
  • Advantages
  • Application & Gallery
  • Technical Parameters
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Introduction

This type of unloader is especially effective for handling dry bulk materials such as grains, cement, alumina, and other similar commodities. The screw conveyor mechanism provides a continuous and controlled flow of material, making it suitable for various industrial applications.

Components of Screw Ship Unloader

  • Screw Conveyor: A helical screw element housed in a tubular or trough casing that moves material along its length. The screw conveyor can be either horizontal or inclined.
  • Inlet Feeder: A mechanism that directs the material from the ship’s hold into the screw conveyor.
  • Discharge System: Transfers the material from the screw conveyor to the next stage, such as a conveyor belt, hopper, or directly into storage.
  • Support Structure: The framework that supports the screw conveyor and associated components. This structure must be robust to handle the weight and movement of the equipment and materials.
  • Drive System: Powers the screw conveyor, typically consisting of motors, gearboxes, and drive shafts.
  • Control System: An operator control cabin or panel where the unloader’s operations are monitored and controlled.


Screw Ship Unloader Drawing

Operation of Screw Ship Unloader

  • Positioning: The unloader is positioned over the ship’s hold.
  • Feeding: The inlet feeder directs material from the hold into the screw conveyor.
  • Conveying: The screw conveyor moves the material along its length to the discharge point.
  • Discharging: Material is discharged from the screw conveyor to a conveyor belt, hopper, or directly to storage.

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Advantages & Highlights

  • Efficient Handling

    Provides a continuous and controlled flow of material, enhancing unloading efficiency.

  • Dust Control

    Enclosed design minimizes dust emissions, which is important for environmental and workplace safety.

  • Flexible Applications

    Can handle a wide range of dry bulk materials, making it versatile for various industries.

  • Reduced Labor Costs

    Automation reduces the need for manual labor, lowering operational costs.

  • Efficiency

    Capable of unloading large volumes of material quickly, improving ship turnaround times.

  • Controlled Discharge

    Allows precise control over the unloading rate, which is important for handling sensitive or friable materials.

Application & Gallerys

  • Ports and Terminals: Unloading bulk cargo such as grains, cement, alumina, and other dry bulk materials.
  • Cement Plants: Handling bulk cement and raw materials used in the manufacturing process.
  • Grain Handling: Unloading grains and other agricultural products in silos and storage facilities.
  • Chemical Industry: Handling dry bulk chemicals and raw materials.
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Technical Parameters

Model SSU500 SSU800 SSU1000 SSU1200 SSU1500
Rated capacity t/h 500 800 1000 1200 1500
Power source 380v 50hz
Total power kw 700 800 900 1000 1200
Horizontal swing angle ±30°≥@≥40°
Vertical swing angle ±30°≥@≥40°
Swing angle 110°
Overall dimension L*W*H see drawing see drawing see drawing see drawing see drawing
Base size based on client based on client based on client based on client based on client
 
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