Vibratory Crusher Gap Design for Material Separation
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Solution Overview
Problem
Existing vibratory apparatuses for crushing materials are inefficient in effectively crushing materials due to lack of effective movement and interaction between crushing elements and the trough walls, leading to incomplete processing and separation of materials.
Innovation Solution
A vibratory crushing apparatus with a trough having a crusher with a smaller cross-sectional area than the trough wall, coupled with a vibration generator to cause material movement and relative movement between the crusher and the wall, enhancing the crushing process and allowing for sorting and separation of materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the crusher cross-sectional area is made equal to the trough wall inner surface area, then the contact area between crusher and wall is maximized, but the relative movement and crushing effectiveness deteriorates due to lack of gap space
Solution Approach 1:
The crusher is nested within the trough wall with a deliberate gap between them, allowing the crusher to move freely while maintaining proximity to the wall. This nested configuration enables both adequate contact area and effective relative movement for crushing materials.
Solution Approach 2:
The crusher is designed with a cross-sectional area smaller than the trough wall inner surface area, creating a gap that enables dynamic relative movement between the crusher and wall during vibration. This dynamic configuration improves crushing effectiveness by allowing the crusher to shift position and apply varying pressure on materials.
2Productivity
If vibration amplitude is increased to improve material movement, then crushing efficiency improves, but material separation and sorting deteriorates due to excessive movement
Solution Approach 1:
The apparatus creates different local conditions within the trough: the gap between crusher and wall provides localized crushing zone with higher vibration amplitude, while areas away from the crusher-wall interface provide localized sorting zone with lower vibration amplitude. This allows simultaneous crushing and separation functions.
Solution Approach 2:
The vibration generator applies vibration that is excessive for separation purposes but appropriate for crushing. The crusher utilizes this excessive vibration for effective crushing while the material sorting occurs in regions where the vibration effect is partially reduced, allowing both functions to coexist.
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 apparatus effectively crushes and separates materials by utilizing the vibration-induced movement between the crusher and the trough wall, improving the efficiency of the crushing process and enabling the sorting of materials based on size.
Implementation Method 1
a vibration generator coupled to the at least one trough to cause material to move between the inlet end and the outlet end
Implementation Method 2
to cause the at least one crusher to move relative to the wall of the trough
Implementation Method 3
a second cross-sectional area that is smaller than the first cross-sectional area so as to define a gap between the outer surface of the at least one crusher and the inner surface of the wall
Data Source
AI summary
A vibratory crushing apparatus includes at least one trough having an inlet end, an outlet end, and a wall defining a material-receiving space having a first cross-sectional area. The apparatus also includes at least one crusher disposed in the trough, the at least one crusher having an outer surface that conforms to an inner surface of the wall about a circumference of the crusher, and a second cross-sectional area that is smaller than the first cross-sectional area so as to define a gap between the outer surface of the at least one crusher and the inner surface of the wall. Further, the apparatus includes a vibration generator coupled to the at least one trough to cause material to move between the inlet end and the outlet end and to cause the at least one crusher to move relative to the wall of the trough.