Silicate Gel Mixing for Consistent Soil Sealing Injection
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Solution Overview
Problem
Existing methods for producing injection silicate gel solutions for soil sealing lack efficiency and consistency, particularly in forming a water-blocking sealing blanket for excavation pits below groundwater level, and do not effectively address component mixing and gel formation.
Innovation Solution
A system and method involving a filtering device with ion exchange resins, metered admixing of curing agents, and controlled mixing of silica sol and sodium silicate with pretreated mixing water to produce a silicate gel solution, which is then injected to form a sealing blanket.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If complexing agents are added to mixing water to improve viscosity and flow properties, then the soft gel injection properties are improved, but the chemical substance addition increases cost and process complexity
Solution Approach 1:
The patent extracts and removes the complexing agent step from the process. Instead of adding complexing agents to improve injection properties, the invention uses ion exchange resins to remove metal ions from the mixing water, thereby eliminating the need for complexing agents and simplifying the process while maintaining or improving injection properties.
Solution Approach 2:
The patent introduces ion exchange resins as an intermediary substance. These resins mediate between the mixing water and the subsequent gel formation process by selectively removing metal ions, which improves the consistency and properties of the soft gel without requiring additional complexing agents.
2Manufacturing precision
If active mixing devices are used to mix components uniformly, then mixing homogeneity is improved, but energy consumption and device complexity increase
Solution Approach 1:
The patent implements self-service mixing where the components (ion exchange-treated water, silica sol, and other additives) are formulated to mix automatically without requiring active mixing devices. The system relies on the inherent properties of the materials and their sequential addition to achieve uniform mixing, thereby eliminating the need for energy-consuming mixers.
Solution Approach 2:
The patent performs preliminary treatment of the mixing water through ion exchange before adding other components. This preliminary action ensures that the water is properly prepared and conditioned, which facilitates subsequent automatic mixing without requiring additional energy input for mixing devices.
3Reliability
If multiple components are mixed with active mixing devices, then gel formation consistency is improved, but production efficiency decreases due to excessive mixing energy input
Solution Approach 1:
The system enables self-service gel formation where the pre-treated water and components automatically form a consistent gel structure without requiring continuous active mixing. The ion exchange pretreatment and controlled component addition create conditions where gel formation occurs consistently through natural processes, improving both reliability and productivity.
4Manufacturing precision
If ion exchange resins are used for water pretreatment, then metal ion removal is improved, but the need for chemical complexing agents is eliminated, reducing cost
Solution Approach 1:
The patent extracts and eliminates the need for chemical complexing agents by using ion exchange resins. The resins directly remove metal ions from the water through ion exchange mechanisms, taking out the harmful metal ions without requiring additional chemical substances for complexation.
Solution Approach 2:
The ion exchange resins serve as intermediary substances that facilitate metal ion removal. These resins act as a bridge between the water and the disposal system, selectively binding metal ions and allowing the water to be used for gel production without harmful contaminants, thereby eliminating the need for complexing agents.
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 efficient, uniform, and cost-effective production of silicate gel solutions with controlled gel formation, ensuring a consistent sealing effect and reduced energy input, suitable for forming a sealing blanket in excavation pits.
Implementation Method 1
a filtering device through which a mixing water can flow for pretreatment, wherein filtering device comprises at least one filter element for ion exchange, in particular a resin filter
Implementation Method 2
a mixing device for mixing and homogenizing the fed components with the pretreated mixing water for forming an injection silicate gel solution
Data Source
AI summary
The invention relates to a system for producing an injection silicate gel solution for injection into a soil, comprising a filtering device through which a mixing water can flow for pretreatment, wherein the filtering device comprises at least one filter element for ion exchange, an admixing device for metered admixing of a curing agent, a feeding device for feeding liquid silica sol into the pretreated mixing water, a feeding device for feeding liquid sodium silicate into the pretreated mixing water, and a mixing device for mixing and homogenizing the fed components with the pretreated mixing water for forming an injection silicate gel solution.