Rotating Ship Unloader Scraping Mechanism for Dust Control
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Solution Overview
Problem
Existing continuous ship unloader systems face limitations in automation, operational safety, and efficiency due to rigid connections between scraping and elevating devices, leading to dust emissions, irregular material flow, and high maintenance costs, particularly in handling diverse ship hold dimensions and material types.
Innovation Solution
A flexible collecting group with an extendible scraping device that rotates 360° around a constrained elevator, allowing independent operation of the scraper and elevator, and featuring interchangeable blades for optimized geometry and quick replacement, reduces dust and noise emissions, and simplifies automation and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid connection between scraping and elevating devices is used, then structural stability is improved, but automation capability deteriorates
Solution Approach 1:
The collecting group is divided into independent scraping device and elevating device components that can operate autonomously. The scraping device can be controlled independently from the elevating device, allowing automated operation without requiring rigid mechanical connections between components.
2Device complexity
If a single rigid scraping device is used, then device complexity is reduced, but adaptability to different hold dimensions deteriorates
Solution Approach 1:
The scraping device is made extendible and movable rather than fixed and rigid. It can be extended to reach different areas of the ship hold and repositioned as needed, providing adaptability to various hold dimensions while maintaining relatively simple device architecture.
3Area of stationary object
If the scraper rotates to reach the whole surface of the hold, then coverage area is improved, but dust emissions increase
Solution Approach 1:
A bridging element is introduced between the scraping device and the material flow path. This intermediary component allows the scraper to rotate and cover the entire hold surface while containing and directing material flow in a controlled manner, preventing dust emissions during the rotation process.
4Adaptability or versatility
If multiple maneuvering groups are distributed on board the machine and on the group itself, then operational flexibility is improved, but automation difficulty increases
Solution Approach 1:
The scraping device is equipped with self-contained maneuvering capabilities including its own drive mechanisms and control systems. This allows the device to perform positioning and maneuvering operations autonomously without requiring external control from the main machine, simplifying automation while maintaining operational flexibility.
Data Source
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AI summary
A group (10) for collecting loose or substantially fluid- like material (12) comprises a scraping device (15, 15') suitable for conveying said material (12) towards an elevating device (17) in turn suitable for collecting said material (12) and transporting it upwards. According to the invention, said scraping device (15, 15') is rotatingly constrained around a vertical axis (A) of said elevating device (17) by means of a rotating connecting element (18) between said elevating device (17) and said scraping device (15, 15').