Grouting Resin Feeding Arrangement with Accelerator Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for feeding grouting material into drilled holes for rock reinforcement are inefficient, lacking the ability to adjust setting times of the grouting resin quickly and flexibly, which can lead to time-consuming preparatory measures and material wastage.
Innovation Solution
A system with separate reservoirs for resin base component A, resin component B, and accelerator component K, along with independently controllable pumping units and mixers, allows for the adjustment of setting times by varying the ratio of the accelerator component K, enabling quick changes in hardening speed without emptying the system, and includes a flushing system to prevent clogging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional grouting material feeding methods are used, then the system structure is simple, but the ability to adjust setting times quickly and flexibly is poor, leading to time-consuming preparatory measures and material wastage
Solution Approach 1:
The grouting material is divided into separate components (base component and accelerator component) stored in separate reservoirs. This segmentation allows independent control of each component's flow rate, enabling flexible adjustment of setting times by varying the mixing ratio without requiring system disassembly or material disposal, thus resolving the contradiction between adaptability and device complexity
Solution Approach 2:
The system employs dynamically adjustable pumping units with independent speed control for each resin component. The pumping units can vary their operation speed in real-time to change the mixing ratio of components, allowing quick adjustment of grouting resin setting times during operation without preparatory measures or material wastage, while maintaining a relatively simple overall system structure
2Productivity
If the setting time of grouting resin is changed, then the hardening speed can be adjusted, but conventional systems require emptying the system and preparatory measures which consume time and materials
Solution Approach 1:
The system pre-mixes resin components in controlled ratios using independently controllable pumping units before injection. By preparing the mixed resin with desired setting properties in advance through controlled dosing, the system eliminates the need for time-consuming system emptying and preparatory measures when changing hardening speeds, as the mixing ratio can be adjusted continuously during operation
Solution Approach 2:
The system changes the physical-chemical parameters of the grouting resin by varying the mixing ratio of base component to accelerator component. By adjusting the pumping speed ratios of the two components, the setting time and hardening speed can be continuously modified without emptying the system or taking preparatory measures, thus resolving the contradiction between productivity and time loss
3Adaptability or versatility
If a single grouting resin type is used, then the system is simple to operate, but it cannot provide tailored resin properties for different rock conditions
Solution Approach 1:
The system uses a universal base component that can be combined with accelerator components in varying ratios to produce grouting resins with different setting times and properties. This multi-functional approach allows a single base component system to provide tailored resin properties for different rock conditions while maintaining operational simplicity through automated ratio control via independently controllable pumping units
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 allows for versatile adjustment of grouting resin setting times, reducing time and material waste by enabling continuous adjustment of hardening speeds during injection, ensuring effective rock reinforcement with tailored resin properties for different rock conditions.
Implementation Method 1
the inserted grouting resin is a mixture comprising a resin base component A and a resin component B for activating the hardening process of the produced two-component resin material
Data Source
Figure 1~3
Figure 4~5
Figure 6
AI summary
An arrangement for resin injection, a mining machine, and a method. The arrangement comprises separate reservoirs (13, 14) and pumping units (17, 18) for a base component A and resin component B. There is also a reservoir (15) and a feed unit (23) for an accelerator component K which is implemented for adjusting setting time for the produced grouting resin (Gr). The components of the grouting resin are mixed together in one or more mixers (M, M1, M2).