Integrated Shredding-Baling Apparatus for Mixed Waste
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Solution Overview
Problem
Existing shredding and baling technologies are limited in their ability to handle high volumes of diverse materials, require complex designs, and struggle with compressing non-fibrous materials like dirt and mulch into stable bales, leading to inefficiencies in transportation and storage.
Innovation Solution
A mobile, industrial-sized shredding-baling apparatus with a conveyor system, featuring a rotatable drum with spirally arranged cutting teeth and a baler with flexible bands and rollers, capable of shredding and compressing various materials into compact bales without the need for uniform sizing, and equipped with a wrap feeder to secure the bales with netting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If material is shredded into smaller pieces, then the material occupies less space, but the smaller loose material is harder to collect and contain during transport
Solution Approach 1:
The patent combines the shredding function and baling function into a single integrated apparatus. The shredder reduces material volume while the attached baler immediately compacts the shredded material into contained bales, eliminating the transport difficulty of loose shredded material while maintaining the space reduction benefit
Solution Approach 2:
The baler acts as an intermediary device between the shredder and the final transport stage. It receives shredded material and transforms it into compact, contained bales that are easy to handle and transport, mediating between the volume reduction need and the containment need
2Manufacturing precision
If a screening apparatus is added to ensure uniform debris size, then the shredding quality is improved, but the device complexity increases
Solution Approach 1:
The patent uses a single shredding mechanism that performs sufficient shredding without requiring multiple stages or screening apparatus. The baler can accommodate varied shred sizes, making complete size uniformity unnecessary - partial shredding action is sufficient for the application
Solution Approach 2:
The baler is designed to accept and compact various sizes of shredded material uniformly, making the shredding mechanism's output size less critical. This multi-functional capability allows the system to forgo complex screening while maintaining effective operation
3Productivity
If multiple rotating cutting mechanisms are used to shred material, then the shredding effectiveness is improved, but the device complexity and cost increase
Solution Approach 1:
The patent merges the shredding and baling operations into a single integrated flow. Material is shredded once by a single mechanism and immediately fed into the baler, eliminating the need for multiple cutting mechanisms while maintaining effective shredding throughput
Solution Approach 2:
The continuous operation of the single shredding mechanism feeding directly into the baler maintains high productivity. The uninterrupted material flow compensates for using fewer cutting mechanisms, keeping the system simple and efficient
4Productivity
If a single vehicle is used to transport materials, then transportation efficiency is improved, but the vehicle cannot handle high volumes of material without frequent trips
Solution Approach 1:
The patent applies compression locally at the source (the shredding site) by baling material immediately after shredding. This creates compact, space-efficient loads that maximize the carrying capacity of a single vehicle, allowing high volumes of material to be transported in fewer trips
5Ease of manufacture
If separation or sorting of materials is performed before shredding, then the shredding process is optimized for specific materials, but the time and complexity of the overall process increases
Solution Approach 1:
The shredding and baling apparatus is designed with universal capability to handle diverse materials (tree branches, trash, demolition materials, wood, metal, plastic) without requiring pre-separation or sorting. The system performs effectively on mixed materials, eliminating the time-consuming sorting step
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
Enables efficient shredding and baling of high volumes of mixed materials, including non-fibrous materials, into compact, stable bales that occupy significantly less space, facilitating efficient transportation and storage, and allowing a single vehicle to handle quantities equivalent to multiple roll-off containers.
Implementation Method 1
A shredder or crusher typically has rotating blades which shred and shear material as it is fed into the shredding apparatus
Implementation Method 2
the baling process itself serves to compact the material and reduce the size of space occupied by the garbage or recyclable material
Data Source
AI summary
A shredding and baling apparatus provided includes a shredding assembly operatively connected to a baling assembly via a conveyor. A rotatable drum with cutting teeth spirally arranged along the drum is preferably centered within a lower portion of an intake hopper for cutting through material as it is fed into the hopper. Fixed cutting teeth are preferably arranged in a row or rows along each of the longitudinal sidewalls of the hopper, adjacent the cutting drum. A touch screen display and computer may be used in combination with sensors to monitor and control the shredding and baling operation, and a hydraulic system is used to drive the components. The shredding and baling assembly is preferably designed in an industrial size to handle high volumes of material and may be driven or transported from one location to another.