Cable-Suspended Conveyor Tripper for Mine Filling
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Solution Overview
Problem
Existing dumping systems in strip mines face instability issues with slopes, requiring costly stabilization or drainage measures, which are expensive and inefficient.
Innovation Solution
A dumping system with a conveyor belt suspended by cables and a traveling tripper that can span over the area to be filled, eliminating the need for material stabilization or drainage, using hinged outer supports and intermediate supports to distribute forces and maintain stability without bending or compressive loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a stacker with a long stacker boom is used to improve slope stability, then the stability is improved, but the device complexity and cost increase
Solution Approach 1:
The system is divided into separate functional components: carrier cables for support, suspension cables for positioning, and a traveling tripper for material distribution. This segmentation eliminates the need for a complex long-boom stacker while maintaining slope stability through distributed support points.
Solution Approach 2:
Carrier cables act as intermediaries between the support structure and the material flow, allowing the system to span across the slope without direct contact. This intermediary approach enables stable operation over unstable material without requiring complex stabilization mechanisms.
2Stability of the object's composition
If material drainage measures are implemented to ensure stability, then the stability is improved, but the expense increases greatly
Solution Approach 1:
The cable-supported conveyor system acts as an intermediary that spans over the slope without requiring intervention in the material structure. This avoids costly drainage measures by creating a stable support structure above the potentially unstable material.
Solution Approach 2:
The system transitions from ground-based operation to aerial suspension, moving the conveyor belt into a different spatial dimension. This allows material to be transported and distributed without direct contact with the slope, eliminating the need for expensive stabilization and drainage infrastructure.
3Manufacturing precision
If the conveyor belt is supported on cables with minimal slack, then the positioning precision is improved, but the tensile forces in carrier cables increase
Solution Approach 1:
The support system is segmented into carrier cables for structural support and suspension cables for precise positioning. This segmentation allows the carrier cables to handle tensile forces while suspension cables manage positioning precision, distributing the mechanical demands across different components.
Solution Approach 2:
The system changes the parameter of cable tension distribution by using multiple suspension cables at different points along the belt modules. This allows precise control of belt position while distributing tensile forces across multiple cable attachment points rather than concentrating them in single carrier cables.
4Adaptability or versatility
If the belt modules are designed to be flexible to adapt to cable slack, then the adaptability is improved, but the structural strength decreases
Solution Approach 1:
The conveyor system is divided into discrete belt modules that can independently flex and adapt to cable slack variations. Each module maintains its structural integrity for carrying load while the segmented design allows overall flexibility to accommodate carrier cable sag without requiring the entire structure to be either rigid or highly flexible.
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 cost-effective and safe filling of larger areas by reducing the need for stabilization measures and avoiding material drainage, ensuring stability and efficient material distribution across the slope.
Implementation Method 1
To these (carrier cables) are fastened suspension cables, which are connected with the belt modules and hold the belt modules in a mostly horizontal alignment
Implementation Method 2
the outer supports are designed as hinged supports. I.e., the outer supports have a joint at their foot, such that they only have to absorb forces of pressure
Data Source
AI summary
A dumping system, for the dumping of material, in particular for the filling of a former strip mine, includes a conveyor belt with belt modules (7) suspended on cables and a traveling tripper (15), which is arranged traveling in the direction of conveying. The belt modules (7) are fastened by braced carrier cables (3) and suspension cables (5) fastened thereto in a mostly horizontal alignment. The traveling tripper (5) can travel on the belt modules (7). Furthermore, the slack of the carrier cables (3) may be compensated by a different length of the suspension cables (5), such that the belt modules (7) are aligned mostly horizontally. It is thus possible to span over the area to be dumped (for example, a pit) with cables and to dump material by the traveling tripper at all points of the bracing. Thus, it is not necessary to drive the dumped material.