Automated Ballast Bed Renovation Volume Control
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Solution Overview
Problem
Existing methods for rehabilitating a ballast bed of a track lack efficient management of bulk material replacement, particularly in large construction sites, where precise and automatic control of material volumes is needed to ensure seamless replacement without operational disruptions.
Innovation Solution
The method involves automatic control of new bulk material introduction based on the volume of old bulk material removed, using contactless two-dimensional scanning and sensing devices to determine the volumes and adjust the transport speed of conveyor belts, ensuring precise volume compensation and continuous operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If manual management methods are used for bulk material replacement, then operational flexibility is maintained, but precise volume control and automation are lost
Solution Approach 1:
The patent replaces manual volume measurement and material supply control with an automated optical scanning system. Two-dimensional scanning devices capture bulk material volumes without contact, and a control unit automatically calculates replacement volumes and adjusts conveyor speeds, eliminating manual intervention and achieving precise automated control.
Solution Approach 2:
The system creates a digital copy of the bulk material volume through two-dimensional scanning. The scanning devices generate accurate representations of the material piles, which the control unit uses to calculate precise replacement volumes without physically measuring or disturbing the materials.
2Quantity of substance
If large quantities of bulk material are handled simultaneously, then complete ballast bed replacement is achieved, but volume management becomes difficult
Solution Approach 1:
The patent divides the large-scale ballast bed replacement into manageable segments by individually scanning and calculating volumes for each storage wagon. The system processes each wagon's bulk material separately, determining precise replacement volumes for each unit while managing the overall large quantity of materials involved.
Solution Approach 2:
The system transitions from traditional one-dimensional or point-based measurement to two-dimensional scanning for volume determination. By capturing two-dimensional images of the bulk material piles and processing them with the control unit, the system achieves accurate volume calculations for large quantities of material that would be difficult to measure with conventional methods.
3Productivity
If conveyor belt speed is increased for faster material transport, then productivity improves, but material spillage and control precision deteriorate
Solution Approach 1:
The patent implements dynamic speed control of the conveyor belts, adjusting transport speeds based on real-time volume calculations and material flow requirements. The control unit continuously monitors and modifies conveyor speeds to optimize both transport efficiency and material supply precision, allowing the system to adapt to different operational conditions.
Solution Approach 2:
The system establishes a feedback loop where the control unit continuously monitors bulk material volumes in storage wagons and adjusts conveyor belt speeds accordingly. Based on the calculated replacement volumes and current material levels, the system automatically modulates transport speeds to maintain precise material supply while maximizing productivity.
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 approach enables efficient and automated bulk material replacement, facilitating complete ballast bed replacement with large quantities of material without issues, improving construction site management and ensuring consistent supply according to the removed material's volume.
Implementation Method 1
The scanning device 19 is designed as a non-contact laser distance measuring device, which continuously scans the heap 18 formed by the discarded old bulk material 6 and thereby records the loading height in the storage container 13.
Implementation Method 2
a transport speed of a floor conveyor belt provided for the bulk material transport in each storage car
Data Source
Figure 1~2
AI summary
During renovation of a ballast bed of a track, old bulk material (6) to be removed is stored on a number of storage wagons (2), forming a track construction site (10), said storage wagons being connected to form a loading train (7). In parallel to this, new bulk material (9) is introduced into the track construction site (10), said new bulk material being pre-stored on a number of storage wagons (2), which are connected to form a loading train (8). The introduction of the new bulk material (9) into the track construction site (10) is controlled automatically depending on a volume of the old bulk material (6) removed from the track construction site (10).