Flake-like Composition from Coal Power Waste
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Solution Overview
Problem
There is a lack of effective utilization of waste materials from coal-fueled thermal power plants, with existing methods mainly involving pulverization for use as cement aggregates.
Innovation Solution
A flake-like composition is produced using waste materials from coal-fueled thermal power plants, specifically by melting the waste materials in an electric furnace and then crushing the solidified spherical material into a flat or scale-like shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If waste material is pulverized for use as cement aggregate, then it can be utilized in construction, but the utilization effectiveness is limited and strength degradation occurs
Solution Approach 1:
The invention changes the physical and chemical parameters of waste material through controlled melting and solidification processes. By adjusting temperature, cooling rate, and compositional ratios (particularly SiO2+Al2O3 content between 45-75% and Al2O3/(SiO2+Al2O3) between 0.15-0.28), the waste material transforms from a weak pulverized state to a strong flake-like composition with enhanced mechanical properties and structural integrity
Solution Approach 2:
The invention creates a composite material system by combining waste material with specific ratios of silica and alumina components. This composite approach allows the waste material to gain improved strength and structural properties while maintaining the beneficial effects of waste utilization, effectively resolving the strength degradation issue
2Strength
If waste material is melted and solidified to form flake-like composition, then strength and structural integrity are improved, but processing complexity increases
Solution Approach 1:
The invention utilizes phase transitions (melting and solidification) as the core mechanism to transform waste material. By controlling the melting process at high temperature followed by controlled solidification, the waste material naturally forms flake-like structures with enhanced strength, avoiding the need for complex shaping or forming equipment
Solution Approach 2:
The waste material itself serves as the raw material for the final product without requiring extensive preprocessing or additional binding agents. The melting and solidification process allows the material to self-organize into the desired flake-like structure, reducing the need for complex processing equipment and steps
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 method achieves a more effective use of waste materials by converting them into a flake-like composition suitable for applications such as bright pigments, paints, linings, and reinforcement materials, while maintaining high amorphousness and avoiding strength degradation.
Implementation Method 1
melting the waste materials in an electric furnace
Implementation Method 2
crushing the solidified spherical material into a flat or scale-like shape
Data Source
AI summary
The purpose of the present invention is to provide: a flake-like composition that enables effective use of the waste discharged from a coal-fueled thermal power plant; and a method for producing said flake-like composition. This flake-like composition is characterized by containing, as a raw material, waste discharged from a coal-fueled thermal power plant.