Movable Shredder for Mobile Aggregate Plant Height
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Solution Overview
Problem
Mobile aggregate processing plants face challenges in transporting larger units due to height restrictions on public roads and railways, and materials with high moisture content tend to clump, making them difficult to screen efficiently.
Innovation Solution
A linkage mechanism is introduced to support and move a shredding apparatus within the mobile aggregate processing plant, allowing it to be lowered for transportation and positioned effectively above the vibrating screen to break apart clumped materials, improving screening efficiency and accommodating transport height restrictions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the mobile aggregate processing plant is designed with larger size to increase processing capacity, then productivity is improved, but the plant cannot be transported due to height restrictions on public roads and railways
Solution Approach 1:
The shredding apparatus is designed with a movable mounting structure that allows it to be positioned at different heights and locations. During operation, the shredder is elevated to its working position above the feed hopper. During transport, the shredder is lowered to a reduced height configuration, enabling the plant to meet road height restrictions while maintaining large processing capacity when in use.
2Adaptability or versatility
If materials with high moisture content are fed into the screening apparatus, then the plant can process a wider variety of materials including compost and soil, but the materials clump together making them difficult to screen efficiently
Solution Approach 1:
The shredding apparatus performs preliminary action by breaking apart clumped, high-moisture materials before they enter the screening process. The shredder with rotating flails or hammers pre-processes the feed material, disrupting clumps and creating a more uniform feed stream that can be efficiently screened, thereby maintaining both material versatility and screening productivity.
3Productivity
If a shredding apparatus is added to break apart clumped materials, then screening efficiency for high moisture materials is improved, but the overall device complexity increases
Solution Approach 1:
The shredding apparatus is designed as a multi-functional unit that serves both processing and positioning functions. The same hydraulic or mechanical system that moves the shredder to its working position above the feed hopper also enables it to be lowered for transport. This integrated design adds shredding capability without requiring completely separate positioning mechanisms, thereby limiting the increase in overall device complexity.
Data Source
AI summary
A mobile aggregate processing plant for screening material including a chassis and a vibrating screen support frame, and a vibrating screen mounted on the support frame, wherein the vibrating screen has an infeed end and a discharge end, and able to provide at least one material discharge stream therethrough. A feed hopper has a discharge end able to feed a stream of feed material into or onto the vibrating screen. A shredding apparatus is moveable between at least a first in use position above the infeed end of the vibrating screen and/or next to the hopper discharge end, and a second transport position not above the infeed end of the vibrating screen and/or not next to the hopper discharge end.