Multi-Cyclone Vacuum Excavation System for Filter Clogging
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Solution Overview
Problem
Traditional vacuum excavation systems face issues with clogged filters during microtrenching and the need for separate equipment for water and air excavation, leading to inefficiencies and potential damage to the blower mechanism due to the reliance on paper filters that become ineffective and require frequent replacement.
Innovation Solution
A multi-cyclone vacuum excavation system with a plurality of mini-cyclonic chambers that separates excavation material from the medium, reducing the reliance on paper filters by using a multi-cyclone body housing positioned between the spoils tank outlet and the vacuum system exhaust, allowing for efficient separation of immiscible streams without extensive filtering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If paper filters are used to separate excavation material from the medium, then filtration is achieved, but the filters become clogged and require frequent replacement
Solution Approach 1:
The patent divides the single large cyclone separator into multiple smaller cyclone chambers arranged in parallel. This segmentation increases the total separation surface area and distributes the particulate load across multiple chambers, preventing any single filter from becoming overwhelmed and clogged during microtrenching operations with dry material
Solution Approach 2:
The patent introduces a multi-cyclone separation system as an intermediary between the excavation medium and the blower mechanism. This intermediate separation stage removes a significant portion of particulate matter before the stream reaches the blower, reducing the burden on downstream filtration systems and extending filter life
2Productivity
If a large hollow cyclonic separator chamber is used, then unrestricted flow is achieved, but fine particulate matter is not effectively separated
Solution Approach 1:
The patent segments the cyclonic separation function into multiple smaller chambers, each optimized for fine particulate capture. The combined effect of multiple small-diameter cyclones provides superior separation efficiency for fine particles while maintaining high total flow capacity through parallel arrangement
Solution Approach 2:
The patent transitions from a single large-scale separation dimension to multiple smaller parallel separation dimensions. This dimensional approach allows the system to handle fine particulate matter more effectively while preserving overall flow rates through the parallel configuration
3Productivity
If traditional vacuum excavation systems are used for microtrenching, then excavation is achieved, but filters become dirty and packed with spoils material
Solution Approach 1:
The patent implements preliminary separation action through the multi-cyclone chamber system before the excavation stream enters the blower and filtration system. This pre-separation removes a significant portion of spoils material, preventing filters from becoming quickly contaminated during microtrenching operations
4Adaptability or versatility
If one type of equipment is used for both water and air excavation, then versatility is achieved, but filtration requirements increase
Solution Approach 1:
The patent designs the multi-cyclone vacuum excavation system to handle both water and air excavation methods using the same equipment. The multi-cyclone separation mechanism effectively separates particulate matter from both water-based slurry and air-based excavation streams, providing universal functionality without requiring separate filtration systems for each method
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The multi-cyclone system effectively separates excavation medium from spoils, reducing filter clogging and the need for frequent replacements, thereby enhancing operational efficiency and preventing damage to the blower unit, allowing for both water and air excavation without extensive filtering.
Implementation Method 1
A multi-cyclone body may be housed within the multi-cyclone body housing. The multi-cyclone body may carry a plurality of mini-cyclonic chambers
Implementation Method 2
A lower portion of each mini-cyclonic chamber may be in fluid communication with the spoils tank outlet. An upper portion of each mini-cyclonic chamber may be in fluid communication with the vacuum system exhaust
Data Source
AI summary
A vehicle may include an undercarriage with a vacuum spoils tank and a multi-cyclone body housing mounted thereon. A vacuum spoils tank may be in fluid connection to the multi-cyclone body housing. The vacuum spoils tank may include both an inlet and an outlet. A multi-cyclone body may be housed within the multi-cyclone body housing. The housing may be positioned at the vacuum spoils tank outlet, and the multi-cyclone body may carry a plurality of mini-cyclonic chambers. Each mini-cyclonic chamber may include an outlet tube and a mini-cyclonic separator. The mini-cyclonic separator may be in fluid communication with the vacuum spoils tank outlet. The outlet tube may be in fluid communication with a multi-cyclone body housing outlet and a filtration system