Vertical Depackaging Apparatus with Bouncing Plates for Waste Cleaning
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Solution Overview
Problem
The disposal of food waste combined with packaging materials or inorganics is challenging due to equipment damage and contamination, leading to plastics and packaging ending up in landfills instead of being recycled.
Innovation Solution
A vertical depackaging apparatus with bouncing plates and vertical plates creates a suction and centrifugal movement to separate and clean light waste from contaminated food waste, allowing for efficient removal of plastics and packaging before further treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional depackaging systems are used to separate packaging from food waste, then packaging is separated from the food waste stream, but the separated packaging contains too many residual organics to be recyclable and ends up in landfills
Solution Approach 1:
The apparatus uses a vibrating mechanism that agitates the food waste mass, causing packaging materials to bounce and separate from organic contaminants. This mechanical vibration enables thorough cleaning of packaging surfaces, removing residual organics to recycling specifications while preventing loss of recyclable materials.
Solution Approach 2:
The system incorporates an air suction system with nozzles that blow compressed air onto the food waste mass and separated packaging. This pneumatic action lifts light packaging materials upward and blows residual organics off the packaging surfaces, achieving high cleaning quality that enables recycling while preserving valuable packaging materials.
2Reliability
If food waste is processed without effective pre-treatment, then processing is simpler, but equipment is damaged by plastics and wrapping materials and contamination occurs
Solution Approach 1:
The apparatus performs preliminary separation and cleaning of packaging materials from food waste before the mixture enters downstream processing equipment. By removing plastics and wrapping materials in advance, the system protects subsequent equipment from damage while the integrated design keeps the pre-treatment process relatively simple.
Solution Approach 2:
The system segments the waste stream into different components through sequential separation stages: initial mechanical separation, vibrational bouncing separation, and pneumatic lifting separation. This segmentation removes contaminants progressively, protecting equipment while maintaining a manageable process complexity through modular design.
3Manufacturing precision
If heavy contaminants are removed from food waste, then the food waste stream is cleaner for digestion, but removal mechanisms increase device complexity
Solution Approach 1:
The apparatus merges multiple separation functions into a single integrated unit: mechanical vibration, pneumatic air blowing, and gravitational separation all occur in one device. This combination achieves high food waste cleanliness for digestion while avoiding the need for multiple separate separation machines, thereby limiting the increase in overall device complexity.
Solution Approach 2:
The vibrating mechanism serves multiple functions simultaneously: it separates packaging from food waste, cleans packaging surfaces by dislodging organics, and facilitates pneumatic lifting of light materials. This multi-functionality achieves thorough contaminant removal while minimizing device complexity by using a single mechanism for multiple purposes.
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 apparatus effectively cleans packaging materials, enabling their recycling by removing contaminants and preventing landfill disposal, while maintaining equipment integrity and reducing contamination in waste streams.
Implementation Method 1
The vertical plates are configured to create a suction-like movement of the air from the surface of the mass to a top of the apparatus thereby providing a lift force to remove the light waste
Implementation Method 2
the tall plates simultaneously create a centrifugal movement at a top level of the apparatus to expel the light waste through an exit passage for the light waste
Implementation Method 3
The bouncing plates create a chaotic movement and expel air and light waste from the mass in the air environment
Data Source
Figure 1~2
Figure 3A~3B
Figure 4A~4B
AI summary
The subject matter proposes an automated compact depackaging system. The depackaging system includes a receiving hopper, a vertical depackager, dumpsters and a sedimentation unit. The vertical depackager simultaneously removes and cleans packaging materials and the materials that exit the system are clean and organics free. The system also includes a dosing device for dosed discharge of waste or bulk material into the hopper. The hopper may also receive the organic wastes directly from trucks. The dosing device is fitted with metal to identify metals in the bulk material. The assembly includes a grabber on an overhead crane to pick up the metal piece once located. The hopper comprises air doors and air roofs to keep off from smell spreading into the room. The organics that are extracted from the waste are free of plastics and other packaging material.