Foamed Polymer Drum Covering for Conveyor Belt Protection
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Solution Overview
Problem
Conveyor installations experience damage due to material penetration between the drum surface and conveyor belt, leading to reduced lifespan of drums and belts, and high energy consumption.
Innovation Solution
The drum covering is composed of a foamed polymer mixture with an outer sheet, which enhances frictional contact and reduces weight, thereby minimizing damage and energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a rubber mixture with crosslinking agents is used for drum coverings, then frictional contact and force transmission are improved, but weight increases and energy consumption rises
Solution Approach 1:
The patent changes the physical state of the polymer material from solid (traditional rubber mixture) to foamed (containing gas bubbles), which fundamentally alters the density and weight properties while maintaining the frictional contact characteristics needed for force transmission.
Solution Approach 2:
The drum covering is constructed as a composite material system combining polymer base material with gas bubbles (foaming agents), creating a foamed polymer mixture that achieves both lightweight properties and sufficient frictional contact for drive transmission.
2Force
If traditional rubber drum coverings are used, then frictional drive is achieved, but material penetration causes damage to drums and belts reducing lifespan
Solution Approach 1:
The patent modifies the material structure from dense rubber to foamed polymer, changing the physical parameters to reduce material penetration while preserving the frictional properties necessary for drive transmission, thereby protecting both drum and belt from damage.
Solution Approach 2:
The foamed polymer layer acts as a sacrificial protective layer that can be replaced if damaged, protecting the more expensive drum and belt components from penetration damage by material, effectively extending the lifespan of the critical components.
3Strength
If dense polymer materials are used for drum coverings, then structural integrity is maintained, but weight increases leading to higher energy consumption
Solution Approach 1:
The patent introduces gas bubbles into the polymer matrix, fundamentally changing the density parameter while maintaining structural integrity through the foamed structure, which reduces weight and consequently lowers energy consumption during drum rotation.
Solution Approach 2:
The foamed polymer mixture creates a porous structure with gas bubbles dispersed throughout the material, which reduces the overall density and weight of the drum covering while maintaining sufficient structural strength for operational requirements.
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 foamed polymer layer reduces damage to drums and conveyor belts, increases their lifespan, and lowers energy consumption and costs by improving frictional contact and reducing material penetration.
Implementation Method 1
The foamed layer improves the frictional contact between drum surface and conveyor belt
Implementation Method 2
the presence of at least one foamed additional layer provides a weight reduction that has a favorable effect on costs and on energy consumption
Data Source
AI summary
A conveying installation has a conveying belt and also has drums, loadbearing rollers and loadbearing frameworks. The conveying installation forms a material-conveying upper strand with a supply location for the conveying material and a mostly material-free lower strand. At least one drum and/or at least one loadbearing roller have/has a drum cover, which contains at least one layer composed of a foamed polymer mix.