Rotating Drum Glass Particle Sticker Removal
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Solution Overview
Problem
Existing methods for processing waste glass are inadequate in removing sticker residues from glass particles, as they result in incomplete separation and high wear of stirrers, and fail to dry the glass particles effectively.
Innovation Solution
A device featuring a rotating drum with a bulge at the delivery end for generating friction and a hot air source at the discharge end to detach and dry glass particles, allowing for simultaneous sticker removal and drying without wear-prone stirrers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If stirrers are used to remove sticker residues from glass particles, then sticker removal is achieved, but the stirrers are subject to high wear and separation is incomplete
Solution Approach 1:
The harmful function of stirrers (mechanical contact causing wear) is eliminated by extracting the stirring mechanism and replacing it with a drum-based friction system. Glass particles are tumbled in a rotating drum where mutual friction between particles removes stickers without mechanical stirrers contacting the material.
Solution Approach 2:
The glass particles themselves perform the cleaning function through mutual friction during tumbling in the drum. The particles clean each other by rubbing against one another, eliminating the need for external stirring elements that would wear out.
2Reliability
If glass particles are wetted with water to improve sticker removal, then sticker detachment is enhanced, but the glass particles require additional drying step
Solution Approach 1:
The washing and drying functions are merged into a single integrated drum system. Water is sprayed onto particles in the drum for sticker removal, and the same drum structure incorporates heating elements that evaporate the water and dry the particles simultaneously, eliminating separate drying equipment.
Solution Approach 2:
The drum serves multiple functions: it tumbles particles for friction-based sticker removal, it sprays water for wet cleaning, and it provides heating for drying. This multi-functional design eliminates the need for separate washing and drying devices.
3Reliability
If a rotating drum with fixtures is used to generate friction, then sticker removal is improved, but the device complexity increases
Solution Approach 1:
The drum rotates at controlled speeds to create tumbling motion and mutual friction between particles. The rotational movement generates the necessary mechanical action for sticker removal without requiring complex internal fixtures or mechanisms within the drum structure.
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 solution effectively separates sticker residues from glass particles and dries them in the same device, improving the efficiency of the process and reducing wear, while ensuring complete removal and drying of contaminants.
Implementation Method 1
Mutual friction of the glass particles is generated by the revolving movement of the drum
Implementation Method 2
the hot air dries the glass particles
Implementation Method 3
it entrains the sticker residues and removes them
Data Source
AI summary
There is provided a method for processing broken glass particles subject to moisture, to which residues of stickers adhere. The method comprises receiving the broken glass particles continuously at a delivery point of a drum, transporting the broken glass particles as a stream of broken glass particles in the drum to a discharge point, wherein the stream of broken glass particles is removed from the drum, rotating the drum such that circulation and mutual friction of the stream of broken glass particles occurs, and applying a gas stream to the stream of broken glass particles and guiding the gas stream over the stream of broken glass particles to remove the residues of stickers, wherein the transporting of the stream of broken glass particles is decelerated in a bulge of the drum.