Waste Container Rear Air Extraction Passage
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Solution Overview
Problem
Existing waste collection containers face issues with air removal, leading to gas buildup that can ignite or explode, posing a danger, and existing solutions like suction devices at the front often clog and are difficult to maintain.
Innovation Solution
A waste collection container design with a rear passage for air flow from the collection space to the dumping area, accessible for easy maintenance and cleaning, utilizing a blower to direct air outside and potentially reverse airflow for self-cleaning, along with features like a conical compressor element and sieve protection to prevent clogging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If air extraction openings are arranged at the front of the collection chamber, then air can be extracted from the collection space, but the extraction openings become clogged and require frequent cleaning
Solution Approach 1:
The patent inverts the conventional arrangement by moving the air extraction opening from the front of the collection chamber to the rear side, specifically through the intermediate wall between the collection space and dumping area. This inversion allows the extraction opening to be accessible from the dumping area side for easy cleaning, while still effectively extracting air from the collection space to prevent gas buildup and explosions.
2Productivity
If extraction openings are positioned at the front of the collection chamber, then air flow can be achieved, but the openings are difficult to access for cleaning
Solution Approach 1:
The patent extracts the air extraction opening from its conventional position at the front of the collection chamber and relocates it to the intermediate wall. This extraction of the opening from the problematic front position allows it to be accessed from the dumping area, which is easily accessible during normal operation, thereby maintaining extraction efficiency while greatly improving accessibility for maintenance.
3Reliability
If a fan is used to generate air flow for ventilation, then adequate ventilation of the collection space is achieved, but blockages in the feedthrough can occur
Solution Approach 1:
The patent implements periodic reversal of the fan's blowing direction. During normal operation, the fan extracts air from the collection chamber. Periodically, the blowing direction is reversed to blow air from the surrounding area into the collection chamber through the feedthrough, which clears any blockages that may have formed. This periodic action maintains reliable ventilation while preventing harmful blockages.
Solution Approach 2:
The fan system performs self-cleaning by periodically reversing its blowing direction to clear blockages from the feedthrough. This self-service mechanism eliminates the need for manual intervention to clear blockages, maintaining ventilation effectiveness while automatically preventing harmful accumulations.
4Productivity
If the fan discharges exhaust air at low position, then discharge into environment is achieved, but operating personnel are exposed to odorous and germ-laden exhaust air
Solution Approach 1:
The patent positions the fan outlet or its connected pipe arrangement at the highest possible position on or within the waste collection container. This vertical dimensionality change ensures that exhaust air is discharged above the operating personnel's work area, eliminating exposure to hazardous air while maintaining effective discharge into the environment.
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 solution provides effective ventilation, reduces maintenance needs, and protects personnel from hazardous exhaust air by ensuring air is diluted and safely directed away from the working area, with features that prevent blockages and facilitate easy cleaning.
Implementation Method 1
the feedthrough is fluidically connected to a blower. This generates an air flow that transports the air from the collection chamber into the environment
Implementation Method 2
The air inside the collection chamber is led through the duct to an area outside the collection chamber, where it mixes with the ambient air and is diluted so that there is no longer any potential danger
Data Source
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AI summary
The invention relates to a waste collection container (1), in particular for a refuse collection vehicle, with a collection chamber (2) and a rear tipping area (3), wherein the collection chamber (2) and tipping area (3) are separated from each other by a partition wall, wherein a passage (5) is arranged in the partition wall through which an airflow from the collection chamber (2) can be directed into the tipping area (3) or outside the collection container. This enables efficient and maintenance-friendly ventilation of the waste collection container (1).