Nested Tube Dust Collection System for Mining Machines
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Solution Overview
Problem
Existing dust collection systems in mining machines, such as roof bolters, face issues with bulky hose designs that are prone to cuts and abrasions, leading to premature failures and operational downtime due to exposure in confined mine spaces.
Innovation Solution
A dust collection system comprising an adjustable tube arrangement with an outer and inner tube configuration, where the inner tube moves fore and aft within the outer tube, providing a variable length passage for dust and airflow, and includes a sealing mechanism to facilitate sliding movement, enhancing durability and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If looped hose arrangement is provided for dust collection, then dust can be conveyed from generation area to delivery area, but the hoses become bulky and are exposed to cuts and abrasions causing premature failures
Solution Approach 1:
The dust collection system employs nested tubes where an inner tube is positioned within an outer tube. The inner tube can slide fore and aft within the outer tube, allowing the system to adapt to different positions while protecting the dust collection passage from external damage. This nested configuration eliminates the need for bulky looped hose arrangements and reduces exposure to cuts and abrasions.
Solution Approach 2:
The inner tube is designed to move dynamically fore and aft within the outer tube based on operational requirements. This dynamic adjustment capability allows the dust collection system to maintain functionality while reducing the overall bulk and complexity of the hose arrangement, thereby improving reliability by minimizing exposure to damaging conditions.
2Adaptability or versatility
If fixed length tube is used for dust collection, then structure is simple, but the tube cannot adapt to different positions of mining machine components
Solution Approach 1:
The nested tube configuration allows the inner tube to slide within the outer tube, providing variable effective length while maintaining a compact overall structure. This resolves the contradiction by enabling adaptability without proportionally increasing structural complexity, as the nested design inherently manages the complexity of variable length configuration.
Solution Approach 2:
The movable inner tube provides dynamic length adjustment capability, allowing the dust collection system to adapt to different operational positions. The sliding mechanism enables the tube to extend or retract as needed while maintaining structural integrity, achieving adaptability with minimal additional complexity compared to fixed length designs.
Data Source
AI summary
A dust collection tube arrangement is provided. The tube arrangement includes an outer tube and an inner tube. The outer tube and the inner tube have a hollow configuration. The inner tube has a diameter lesser than that of the outer tube. The inner tube moves fore and aft with respect to the outer tube. The outer and inner tubes provide a passage for dust and airflow along with adjustable length of tube arrangement based on a position of the inner tube with respect to the outer tube.