Vibration Amplifier for High G-Force Separation
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Solution Overview
Problem
Existing vibratory separators in drilling and mineral processing applications face limitations in generating sufficient G-forces, leading to inefficiencies in particle separation, particularly when dealing with varying operating parameters, which can result in solids and liquid bypassing and machine overload, and are prone to human error in adjustments.
Innovation Solution
A vibratory separator system incorporating a vibration amplifier that enhances G-forces on the screen assembly by using a flexible mass and beater bar configuration, capable of generating forces between ten and thirty G's, to improve separation efficiency and reduce clogging, while being adjustable and less prone to human error.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional vibratory separators use standard motors with unbalanced weights, then the device complexity is low and ease of manufacture is good, but the G-forces generated are insufficient (limited to 5-7 G's) leading to poor separation efficiency
Solution Approach 1:
The patent applies mechanical vibration by using a vibration amplifier that converts rotational motion from standard motors into high-G-force vibratory motion. The amplifier uses an unbalanced weight on a rotating shaft connected to an eccentric cam mechanism, which transforms the rotation into vertical reciprocating motion at 1.5-2 times the motor speed, generating 10-30 G-forces on the screen assembly while keeping the motor specifications standard
Solution Approach 2:
The vibration amplifier employs periodic action through its cam mechanism that rotates continuously and periodically converts rotational motion into vertical reciprocating motion. The cam profile is designed to create acceleration pulses during specific portions of the rotation cycle, delivering periodic high-G-force impulses to the screen assembly that enhance separation efficiency without requiring continuous high-power motors
2Productivity
If the vibratory separator operates at higher G-forces to handle heavier loads and increase fluid capacity, then separation efficiency improves, but the device complexity increases due to the vibration amplifier system
Solution Approach 1:
The vibration amplifier uses mechanical vibration principles with an eccentric cam mechanism that amplifies the G-forces applied to the screen assembly. The unbalanced weight on the rotating shaft creates variable centrifugal forces that are converted into vertical acceleration pulses, enabling the system to handle heavier loads and increase fluid capacity by generating 10-30 G-forces while using standard motor specifications
Solution Approach 2:
The vibration amplifier serves as an intermediary device between the standard motors and the screen assembly. It mediates the force transmission by converting the rotational torque from the motors into amplified vibratory forces, allowing the use of conventional motors while achieving high-G-force operation for handling heavier loads and increasing fluid capacity
3Adaptability or versatility
If manual adjustments are made to screen assembly angle and vibration parameters, then adaptability to different operating conditions is improved, but human error increases and reliability decreases
Solution Approach 1:
The system incorporates dynamic adjustability where the vibration amplifier's operational parameters such as rotation speed and cam profile can be modified to adapt to different screening requirements. This dynamic capability allows the system to handle varying particle sizes, flow rates, and material characteristics while maintaining consistent performance through controlled parameter changes rather than manual mechanical adjustments
Solution Approach 2:
The patent implements feedback control mechanisms that monitor the vibratory separator's performance parameters and automatically adjust operational settings to optimize separation efficiency. This feedback system reduces human error by replacing manual adjustments with automated control that responds to actual operating conditions, thereby improving reliability while maintaining adaptability to different materials and conditions
4Productivity
If the screen assembly is subjected to higher G-forces to reduce clogging and binding, then separation efficiency improves, but the stress on the screen and support structure increases
Solution Approach 1:
The vibration amplifier delivers periodic acceleration pulses rather than continuous constant force. The cam mechanism is designed to apply high-G-force impulses during specific phases of the rotation cycle, allowing the screen assembly to experience reduced average stress while still achieving effective separation during the high-acceleration phases, thereby reducing clogging without proportionally increasing structural stress
Solution Approach 2:
The system employs cushioning elements and resilient mounting for the screen assembly that absorb and distribute the high-G-force impulses. These cushioning features are designed beforehand to protect the screen and support structure from excessive stress during high-acceleration operation, allowing the use of higher G-forces for improved separation efficiency while preventing structural damage through pre-engineered stress distribution
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 system effectively increases separation efficiency, handles heavier loads, and enhances fluid capacity by applying higher G-forces, reducing clogging and binding issues, and ensures optimal performance across a range of particle sizes without subjective adjustments.
Implementation Method 1
A vibratory separator system incorporating a vibration amplifier that enhances G-forces on the screen assembly by using a flexible mass and beater bar configuration, capable of generating forces between ten and thirty G's
Implementation Method 2
The screen is vibrated by vibratory equipment to create a flow of trapped solids on top surfaces of the screen for removal and disposal of solids. The vibratory separator has at least one motor affixed thereto. The motor is cooperative with a screen assembly so as to impart a vibration frequency to the screen assembly
Data Source
AI summary
A vibrator separator system has a vibrator separator position and a vibratory basket, a screen assembly positioned in the vibratory separator, and a vibration amplifier coupled to the vibratory separator. The vibratory basket has sides arranged in spaced relation to each other. The vibratory separator has at least one motor affixed thereto. The screen assembly extends between an inlet end and a discharge end of the vibratory basket. The motor is cooperative with the screen assembly so as to impart a vibration frequency to the screen assembly. The vibration amplifier is positioned beneath the screen assembly. The vibration amplifier is cooperative with the screen assembly so as to exert a force against a portion of an underside of the screen assembly.