Silicon Vibratory Conveyor with Plastic Damping Layer
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Solution Overview
Problem
Existing vibrating conveyor systems for conveying silicon chunks face issues with loosening and fracture of the silicon cladding, leading to potential product contamination and inefficient contaminant removal due to high acid consumption and edge undercut etching.
Innovation Solution
A vibrating conveyor chute with a conveyor surface made of ultrapure silicon, where plastic elements are used between the base body and the conveyor surface to prevent direct contact and secure the silicon cladding, combined with rapid vibrations to break edges and remove contaminants, and a suction device to separate dust, with magnetic separation for further purity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If silicon chunks are conveyed over a vibrating conveyor surface made of ultrapure silicon, then sharp edges are rounded and superficial contaminants are ground off, but loosening and fracture of the silicon cladding occurs during operation
Solution Approach 1:
A plastic intermediate layer is introduced between the base body and the silicon conveyor surface. This plastic layer acts as a mediator that absorbs mechanical stresses and vibrations, preventing direct stress transmission to the silicon cladding while still allowing the silicon surface to perform its rounding function. The plastic layer compensates for dimensional changes and prevents fracture of the silicon elements.
2Object-affected harmful factors
If acid etching treatment is applied to remove contaminants from silicon chunks, then contaminants are removed, but high acid consumption and undercut etching of chunk edges occur
Solution Approach 1:
The vibrating conveyor performs preliminary mechanical cleaning by rounding edges and grinding off superficial contaminants before the silicon chunks enter the acid etching process. This preliminary mechanical treatment removes the most accessible contaminants and reduces the surface area requiring chemical etching, thereby reducing acid consumption and preventing undercut etching of edges.
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
This solution effectively prevents loosening and fracture of the conveyor surface, reduces product contamination, and achieves uniform rounding of silicon chunks while maintaining high purity, enhancing the conveying efficiency and reducing acid consumption.
Implementation Method 1
conveyor surface made of ultrapure silicon, where plastic elements are used between the base body and the conveyor surface
Implementation Method 2
loosening and fracture of the silicon cladding of the conveyor surface may occur during the operation of such vibrating conveyor units
Implementation Method 3
sharp-edged silicon chunks are rounded when they are conveyed on the vibrating conveyor surface
Implementation Method 4
superficially adhering contaminants are ground off
Implementation Method 5
a suction device to separate dust
Implementation Method 6
magnetic separation for further purity
Data Source
AI summary
A vibrating conveyor having a conveyor chute which has a conveyor surface consisting of silicon, wherein plastic elements are provided between the base body of the conveyor chute and the conveyor surface. The vibrating conveyor is suitable for use in a method for conveying silicon chunks.