Mining Conveyance Control via Weight Detection
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Solution Overview
Problem
In mining operations, the productivity of loader and transporter vehicle systems is hindered by inefficiencies in coordination and weight management, leading to wait times, reduced work efficiency, and decreased conveyance efficiency, which can cause overloading and durability issues for transporter vehicles.
Innovation Solution
A conveyance system comprising a first and second conveyance mechanism, a weight detection device, and a control apparatus that controls the conveyance mechanisms based on weight detection values to optimize loading and unloading processes, ensuring appropriate weight distribution and reducing wait times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the next transporter vehicle does not immediately come to a loading position after a loading work is ended by a loader, then a wait time is generated in the loader, but if the transporter vehicle comes immediately, then a wait time is generated in the transporter vehicle at the standby position
Solution Approach 1:
The system performs preliminary actions by having the transporter vehicle approach and position itself at the loading position before the loader finishes its current cycle. The control apparatus coordinates the timing so that the transporter vehicle is ready to receive cargo immediately when the loader completes loading, eliminating idle wait time for both machines through pre-synchronization of their operations.
Solution Approach 2:
The control apparatus continuously monitors the operational status of both the loader and transporter vehicle, using feedback signals to adjust their coordination in real-time. When the loader completes a loading cycle, the system receives feedback and immediately directs the next transporter vehicle to the loading position, optimizing the timing to minimize wait times for both pieces of equipment.
2Manufacturing precision
If the transporter vehicle executes a calibration work of the stop position, then the stop position is adjusted, but a wait time is generated in the loader
Solution Approach 1:
The transporter vehicle performs stop position calibration in advance during periods when the loader is not requiring immediate service. The control apparatus schedules calibration operations during natural idle periods or between loading cycles, so that precision adjustments are made without causing the loader to wait, thereby maintaining both accuracy and productivity.
3Ease of operation
If a loading amount of freight is deficient with respect to the maximum loading amount, then the transporter vehicle can be loaded, but conveyance efficiency declines
Solution Approach 1:
The control apparatus dynamically adjusts the loading amount based on real-time conditions, including the type of cargo, destination requirements, and transporter vehicle capacity. Rather than using a fixed loading amount, the system optimizes each loading operation to maximize conveyance efficiency while maintaining operational flexibility, ensuring that each transporter vehicle carries an appropriate load that minimizes the number of trips required.
4Quantity of substance
If a loading amount of freight is excessive with respect to the maximum loading amount, then more freight can be conveyed, but the travel speed of the transporter vehicle decreases
Solution Approach 1:
The control apparatus changes the loading amount parameter based on the specific cargo characteristics and transportation requirements. For heavy or bulky materials that affect travel speed, the system adjusts the loading amount to an optimal level that balances quantity conveyed with travel speed maintenance, preventing excessive loading that would slow down the transporter vehicle while still maximizing conveyance efficiency.
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 enhances productivity by preventing overloading, maintaining conveyance efficiency, and reducing wait times for both loader and transporter vehicles, thereby improving overall mining productivity.
Implementation Method 1
a weight detection device configured to detect weight of the freight loaded on the second conveyance mechanism
Data Source
AI summary
A conveyance system includes a conveyance device including a first conveyance mechanism configured to convey freight supplied from a loader, and a second conveyance mechanism configured to convey the freight supplied from the first conveyance mechanism, a weight detection device configured to detect weight of the freight loaded on the second conveyance mechanism, and a control apparatus. The control apparatus includes a first conveyance control unit configured to control the first conveyance mechanism. The first conveyance control unit controls the first conveyance mechanism based on a detection value of the weight detection device.