Waste Container Compaction Using Vacuum and External Air Pressure
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Solution Overview
Problem
Existing waste collection and compaction devices require excessive space and equipment due to reliance on atmospheric pressure for waste compaction, leading to inefficient use of resources.
Innovation Solution
A device that combines mechanical compression with simultaneous air pressure loading and vacuum aspiration to compact waste, using a container with moveable base plates, seals, and integrated air and vacuum systems to achieve efficient compaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only atmospheric pressure is used for waste compaction, then the device structure is simple, but the compaction efficiency is low and spatial requirements are high
Solution Approach 1:
The patent applies pneumatic principles by introducing a vacuum pump to create negative pressure inside the container and a compressed air supply system to apply positive pressure from the outside. This pneumatic approach enables effective waste compaction without requiring complex mechanical pressing mechanisms, thus improving compaction efficiency while maintaining relatively simple device structure.
Solution Approach 2:
The patent changes the pressure parameter from atmospheric pressure (1 bar) to a pressure differential between negative pressure inside the container and positive pressure from compressed air. This parameter change enables significantly higher compaction forces to be applied to the waste, improving compaction efficiency without proportionally increasing device complexity.
2Device complexity
If only atmospheric pressure is used for waste compaction, then the equipment requirements are minimal, but the spatial requirements for waste storage are high
Solution Approach 1:
By using a vacuum pump to create negative pressure inside the container and compressed air to apply external pressure, the system achieves high compaction forces that significantly reduce waste volume. This pneumatic compaction method achieves better space utilization without requiring excessively complex equipment.
Solution Approach 2:
The pressure parameter change from atmospheric to controlled pressure differential enables much more effective compaction of waste, reducing the volume occupied by waste in the container without requiring proportional increases in equipment complexity or spatial infrastructure.
3Productivity
If a piston is used for waste compaction, then active compression can be achieved, but the device complexity increases and no hermetic sealing is provided
Solution Approach 1:
Instead of using a mechanical piston for active compression, the patent employs a vacuum pump to create negative pressure inside the container and a compressed air supply system to apply positive pressure from the outside. This pneumatic approach achieves effective waste compaction without requiring complex mechanical sealing systems like pistons, thus improving compression capability while keeping device complexity manageable.
4Quantity of substance
If waste is collected in large volumes, then more waste can be stored, but the spatial requirements and resource consumption increase
Solution Approach 1:
By changing the pressure parameter from atmospheric to controlled pressure differential (negative pressure inside, positive pressure outside), the system achieves much more effective compaction of waste. This allows significantly more waste to be stored in the same spatial volume, improving storage capacity without proportionally increasing spatial requirements or resource consumption.
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 device achieves significant volume reduction of waste with minimal spatial requirements, optimizing resource utilization and enabling easy disposal.
Implementation Method 1
means (10) for producing negative pressure, wherein in the device, f) the cover (7) has an aspiration opening (12), which is arranged on the cover (7) such that in the closed position, the gaseous atmosphere can be aspirated from the interior of a waste bag placed inside the container (2) by means of the means (10) for producing negative pressure
Implementation Method 2
the container (2) has an inlet port (15) for compressed air, which, controlled by means of an inlet valve (16), can be loaded with compressed air supplied by the means (9) for producing compressed air
Data Source
AI summary
The present disclosure relates to a device for collecting and compacting waste, in particular a waste container. The present disclosure furthermore relates to a process for collecting and compacting waste. The process includes aspirating part of the gaseous atmosphere from the waste bag that contains waste, with simultaneous mechanical compression of the waste bag and external air pressure loading of the waste bag.