Acoustic Sensor for Hydrocyclone Air-Core Collapse Detection
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Solution Overview
Problem
Current hydrocyclone systems in mineral extraction processes face challenges in real-time monitoring and control due to maintenance and performance issues, leading to reduced classification performance and mill throughput, with traditional sampling methods being time-consuming and inaccurate, preventing real-time detection of central air-core collapse and other operational instabilities.
Innovation Solution
The implementation of a probe/sensor system with strain gauges or acoustic detection areas to monitor fluid flow and acoustic signals, allowing for the detection of central air-core collapse and fluid flow rate changes, enabling real-time monitoring and corrective actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional manual sampling methods are used to monitor hydrocyclone performance, then the system is simpler and easier to operate, but the measurement accuracy and real-time detection capability are insufficient
Solution Approach 1:
The patent replaces manual mechanical sampling methods with acoustic sensing technology. Acoustic sensors detect changes in sound patterns caused by air-core collapse, eliminating the need for physical sampling and providing real-time, accurate detection without complex mechanical intervention.
Solution Approach 2:
The patent introduces acoustic signals as an intermediary to detect air-core collapse. Instead of directly observing fluid dynamics or taking physical samples, the system uses sound wave propagation characteristics as a mediator to indirectly but accurately detect the presence or collapse of the air core.
2Productivity
If real-time monitoring with sensors is implemented, then the detection accuracy and response time improve, but the device complexity and maintenance requirements increase
Solution Approach 1:
The acoustic sensor system is designed to be self-diagnostic and self-calibrating. The sensors automatically detect their own operational status and can distinguish between genuine air-core collapse events and sensor malfunctions, reducing the need for external maintenance and complex monitoring systems.
Solution Approach 2:
The system incorporates feedback mechanisms where the detected acoustic signals are continuously analyzed and used to adjust monitoring parameters. The signal processor provides feedback about sensor performance and environmental conditions, enabling the system to adapt and maintain accuracy without increasing overall complexity.
3Reliability
If acoustic sensors are used to detect air-core collapse, then the measurement precision and reliability improve, but the cost and device complexity increase
Solution Approach 1:
The acoustic sensor system is designed to perform multiple functions: detecting air-core collapse, monitoring flow rate changes, and assessing hydrocyclone wear. This multi-functionality reduces the need for separate detection systems and justifies the initial complexity by providing comprehensive monitoring capabilities from a single integrated system.
4Loss of time
If manual sampling is used, then the system is easier to operate and maintain, but the turnaround time and response speed are too slow for real-time control
Solution Approach 1:
The patent replaces time-consuming manual sampling and laboratory analysis with instantaneous acoustic detection. The acoustic sensors provide real-time data directly at the hydrocyclone location, eliminating transport time and manual processing, thereby dramatically reducing the detection turnaround time while maintaining operational simplicity through automated monitoring.
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
Enables immediate detection of central air-core collapse and hydrocyclone wear, allowing for timely adjustments to maintain optimal performance and prevent mineral loss, thereby improving classification control and hydrocyclone battery uptime.
Implementation Method 1
an acoustic sensor, such as a sonar sensor or a clamp-around transducer... responding to sound propagating in the overflow pipe
Implementation Method 2
a sensor such as a strain gauge... responding to strain imparted by the fluid flow
Data Source
AI summary
Apparatus features a signal processor or signal processing module configured to: receive signaling containing information about a central air-core of an overflow pipe of a hydrocyclone where fluid flow is concentrated in an outer annular region of the overflow pipe that is against an inner wall of the overflow pipe during a normal operation of the hydrocyclone; and determine corresponding signaling containing information about a collapse of the central air-core of the overflow pipe of the hydrocyclone during an abnormal operation of the hydrocyclone, based upon the signaling received. The signaling contains information about a fluid flow rate of the fluid flow by detecting a change in the magnitude of a force and/or a moment on the probe.