Amplified Ballistic Separator Agitator Kinematics
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Solution Overview
Problem
Ballistic separators face limitations in throughput and separation efficiency due to the mechanical properties of flat and flexible materials, which restrict the rotational speed of paddles and the surface velocity of materials, leading to lower processing capacity compared to similar machines like disc screens.
Innovation Solution
A novel ballistic separator design featuring an agitator and an amplified agitator with increased lateral displacement, kinematically linked to a crankshaft, allowing for a larger total lateral displacement and improved material separation by enhancing the movement of flat materials up the paddle, combined with a conveyor system for increased throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the rotational speed of paddles is increased to improve throughput, then processing capacity increases, but flat and flexible materials disengage from cleats and no longer climb the paddles, reducing separation efficiency
Solution Approach 1:
The patent introduces an amplified agitator that dynamically amplifies the lateral displacement of the paddle surface beyond what the crankshaft rotation alone can achieve. This creates a dynamic motion pattern where the paddle surface moves laterally with greater amplitude than the driving mechanism itself, allowing materials to remain engaged at higher rotational speeds while still climbing effectively up the inclined bed.
Solution Approach 2:
The invention changes the motion parameters of the paddle surface by incorporating an amplified agitator mechanism. The amplification ratio transforms the crankshaft's lateral displacement into a larger paddle surface displacement, effectively altering the velocity and acceleration profiles of the paddle surface to maintain material engagement at higher speeds.
2Reliability
If the bed angle of inclination is increased to improve separation efficiency by bouncing rolling fraction backward, then separation efficiency increases, but flat material becomes more difficult to climb and may not reach the next cleat, reducing throughput
Solution Approach 1:
The amplified agitator creates a dynamic lateral motion component that compensates for the steeper bed angle. By amplifying the lateral displacement of the paddle surface, the system maintains effective material-cleat interaction even at higher inclination angles, allowing both separation efficiency and throughput to be optimized simultaneously.
Solution Approach 2:
The invention adds a dimensional component to the paddle motion by incorporating lateral amplification perpendicular to the primary rotation axis. This additional dimensional movement helps propel flat materials up steeper inclined beds by providing enhanced lateral propulsion force that counteracts the increased gravitational component along the incline.
3Productivity
If the lateral displacement of paddles is increased to improve material climbing velocity, then throughput increases, but the mechanical complexity of the paddle mechanism increases
Solution Approach 1:
The amplified agitator is nested within or integrated with the existing paddle structure, with the amplification mechanism forming a compact assembly that attaches to the paddle. This nested configuration achieves large lateral displacement through a space-efficient design that minimizes overall mechanical complexity while maximizing the amplification effect.
Data Source
AI summary
A novel ballistic separator for separating material is disclosed that includes a separator bed adapted to contact the material. The bed has a first agitator with a top surface, with the top surface comprising a conveyor connected to the first agitator. A crankshaft imparts an oscillating motion to the first agitator and conveyor, which move fixed together relative to the oscillating motion. The conveyor is constructed to move laterally across to the top surface.