Mineral Processing Plant Control System for Standby Mode Transition
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Solution Overview
Problem
Mineral material processing plants face inefficiencies due to interruptions and lengthy startup times, leading to suboptimal capacity utilization, increased energy consumption, and safety concerns, particularly in urban environments where noise restrictions and continuous operation are challenging.
Innovation Solution
Implementing a control system that automatically transitions the plant from stand-by mode to process mode upon detection of mineral material using sensors such as ultrasound, optical, radiation, strain gauges, and image-based measurements, ensuring efficient energy use and reduced noise levels by limiting feeder operation until material is available.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the processing plant operates continuously in process mode, then productivity is improved, but energy consumption increases and noise levels rise
Solution Approach 1:
The control system implements periodic operation by alternating between stand-by mode (low energy, no processing) and process mode (high energy, active processing) based on material availability detection. This resolves the contradiction by making the system active only when needed for productivity while remaining inactive to conserve energy during idle periods.
2Productivity
If the processing plant starts up quickly, then productivity is improved, but safety risks increase during startup transitions
Solution Approach 1:
The control system performs preliminary detection of material availability using sensors before initiating startup. This allows the system to prepare for quick startup when material is present while ensuring safety conditions are verified in advance, resolving the contradiction between fast startup and safety.
Solution Approach 2:
The control system continuously monitors material presence and feeds this information back to determine when to transition from stand-by to process mode. This feedback mechanism enables quick response to material availability while maintaining safety through controlled transition based on verified conditions.
3Productivity
If the feeder device operates continuously, then material processing is improved, but energy consumption increases when no material is available
Solution Approach 1:
The control system uses sensor feedback to detect material presence on the feeder device and automatically switches between stand-by mode (feeder inactive, no energy waste) and process mode (feeder active, material being processed). This resolves the contradiction by ensuring the feeder operates only when material is actually present to be processed.
4Reliability
If multiple sensors are used to detect material, then measurement reliability is improved, but device complexity increases
Solution Approach 1:
The control system combines multiple sensor types (ultrasound, optical, radiation, strain gauges, image-based sensors) into a unified material detection system. This merging approach improves measurement reliability through multiple detection methods while managing complexity through integrated control logic that processes inputs from all sensors to determine material presence.
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 significantly reduces energy consumption and noise, extends equipment lifespan, enhances safety, and increases operational hours by ensuring timely and efficient startup, maintaining optimal processing conditions.
Implementation Method 1
the surface height of the mineral material on the feeder device of the mineral material processing plant is measured with an ultrasound sensor
Implementation Method 2
the surface height of the mineral material on the feeder device of the mineral material processing plant is measured with an ultrasound sensor, an optical sensor and/or a radiation sensor
Implementation Method 3
the surface height of the mineral material on the feeder device of the mineral material processing plant is measured with an ultrasound sensor, an optical sensor and/or a radiation sensor
Implementation Method 4
the tension, force and/or pressure caused to the feeder device by the mineral material is measured with strain gauges, conveyor scale and/or pressure sensor
Implementation Method 5
the tension, force and/or pressure caused to the feeder device by the mineral material is measured with strain gauges, conveyor scale and/or pressure sensor
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A mineral material processing plant (100) and a method for controlling thereof. The mineral material processing plant comprises at least one motor (104), at least one actuator, a feeder device, a control system (110,214), and an arrangement for recognizing a need to switch off a standby-mode. The control system is configured to control the processing plant in such a way that the need to switch off a standby mode is automatically recognized. In response to the recognized need to switch off the standby mode the running speed of a motor (104) or motors of the mineral material processing plant (100) is raised from a stand-by speed (Rsb) to a process speed (Rf); and the feeding of mineral material into the processing plant is enabled (100).