Mine Shaft Conveyance Guide System for Continuous Guidance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional mine shaft sinking methods using blasting and mucking are slow and discontinuous, and existing systems for guiding conveyances, such as skips and buckets, lack full guidance, leading to reduced hoist speeds and health and safety risks during the transportation of people and materials.
Innovation Solution
A mine shaft conveyance system with a guide system comprising variable and fixed length guide sections, including an upper guide section, a workstage guide section, and an excavation region guide section, which restricts rotational and swing movements of conveyances, allowing for safe and efficient transportation of personnel and materials by ensuring full guidance at all times across multiple guide systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional blasting and mucking methods are used for shaft sinking, then equipment simplicity is maintained, but productivity is reduced due to slow and discontinuous operation
Solution Approach 1:
The guide system is divided into multiple distinct sections: upper guide section with variable length guides, workstage guide section with fixed length guides, and excavation region guide section. This segmentation allows each section to be optimized for its specific function while working together to enable continuous high-speed conveyance operation
Solution Approach 2:
The system employs variable length guide sections in the upper region that can dynamically adjust their length as the shaft deepens, while fixed length guides are used in the workstage region. This dynamic configuration enables the guide system to adapt to changing shaft conditions while maintaining continuous operation capability
2Speed
If buckets with crossheads are used for conveyance, then adaptability to traditional systems is maintained, but speed is reduced due to lack of full guidance
Solution Approach 1:
The guide system is designed to accommodate multiple types of conveyances including skips, buckets, and cages within the same shaft infrastructure. The upper and workstage guide sections can work with different conveyance types, allowing high-speed operation regardless of the specific conveyance used
Solution Approach 2:
The guide system acts as an intermediary between the hoisting mechanism and the conveyance, providing continuous guidance through multiple sections. This intermediary guidance system ensures stable, high-speed operation by preventing unwanted movements throughout the entire conveyance path
3Reliability
If conveyances are allowed to move freely in the shaft, then ease of operation is improved, but safety is reduced due to rotational and swing movements
Solution Approach 1:
Different guide sections provide different types of guidance appropriate to their location: the upper guide section provides guidance during acceleration and transition, the workstage guide section provides stable guidance during steady-state operation, and the excavation region guide section provides guidance near the working area. This localized guidance approach ensures safety throughout the entire shaft while maintaining operational simplicity
Data Source
AI summary
A conveyance system for moving a conveyance along a mine shaft during shaft construction, comprising: a first guide section; a second guide section located along the mineshaft in series with the first guide section, the conveyance being movable along the first guide section; and a head section for receiving the conveyance, the head section cooperating with the first guide section to enable the conveyance to travel from the second guide section along the first guide section when received by the head section.