Resonance Disintegration for Coal Pollutant Reduction
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Solution Overview
Problem
Existing coal cleaning processes are costly and inefficient in removing inorganic impurities and trace pollutants like mercury, arsenic, and radionuclides, which reduce the heating value of coal and increase environmental pollution.
Innovation Solution
The process involves resonance disintegration to reduce coal to specific particle sizes without smearing organic and inorganic constituents, followed by separation using air classification, magnetic, or electrostatic processes, effectively liberating mineral matter and reducing pollutant-forming substances, thereby increasing the heating value and reducing pollutant emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional crushing or grinding processes are used to separate mineral matter from coal, then physical separation based on density differences can be achieved, but energy consumption increases and equipment requires frequent repair due to high impact processing
Solution Approach 1:
The patent replaces conventional mechanical impact-based crushing and grinding systems with a resonance-based processing system. Coal particles are subjected to resonant frequencies that cause internal stresses and fragmentation without mechanical contact, eliminating the need for high-impact crushers and grinders while reducing energy consumption and equipment wear.
Solution Approach 2:
The patent applies mechanical vibration through resonance frequencies to the coal particles. By exposing coal to specific resonant frequencies, internal stresses are generated that cause particle fragmentation and separation of mineral matter from organic matter, achieving effective separation without conventional mechanical impact.
2Measurement precision
If conventional crushing or grinding processes are used to separate mineral matter from coal, then physical separation based on density differences can be achieved, but equipment requires frequent repair and parts replacement due to high impact processing
Solution Approach 1:
The patent replaces mechanical impact-based crushing and grinding systems with a resonance-based processing system. Coal particles are subjected to resonant frequencies that cause internal stresses and fragmentation without mechanical contact, eliminating the need for high-impact crushers and grinders while reducing energy consumption and equipment wear.
3Object-affected harmful factors
If extensive post-combustion efforts are used to remove pollutants, then environmental pollution can be reduced, but the cost increases significantly
Solution Approach 1:
The patent performs pollutant removal actions before combustion occurs. By using resonance processing to fragment and separate mineral matter and trace elements from coal particles prior to burning, the pollutants are removed in advance, eliminating or reducing the need for expensive post-combustion pollution control systems.
Solution Approach 2:
The patent extracts and separates pollutant-forming substances (mineral matter, sulfides, pyrites, and trace elements) from coal through resonance-based fragmentation and subsequent classification processes, removing these harmful components before combustion to prevent their conversion into pollutants.
4Measurement precision
If prior coal cleaning processes are used to remove mineral matter, then ash and pollutant levels are reduced and heating value increases, but the processes are costly due to energy requirements and equipment maintenance
Solution Approach 1:
The patent replaces mechanical impact-based crushing and grinding systems with a resonance-based processing system. Coal particles are subjected to resonant frequencies that cause internal stresses and fragmentation without mechanical contact, eliminating the need for high-impact crushers and grinders while reducing energy consumption and equipment wear.
Solution Approach 2:
The patent performs pollutant removal actions before combustion occurs. By using resonance processing to fragment and separate mineral matter and trace elements from coal particles prior to burning, the pollutants are removed in advance, eliminating or reducing the need for expensive post-combustion pollution control systems.
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 cost-effective reduction of ash, sulfur, and trace element levels in coal, enhancing its heating value and compliance with emission standards while minimizing energy consumption and wear on equipment.
Implementation Method 1
The process involves resonance disintegration to reduce coal to specific particle sizes without smearing organic and inorganic constituents
Implementation Method 2
physical separation processes which utilize density differences between resulting carbonaceous and mineral particles
Implementation Method 3
separation using air classification, magnetic, or electrostatic processes
Implementation Method 4
separation using air classification, magnetic, or electrostatic processes
Data Source
AI summary
Methods for reducing potential pollutants in carbonaceous materials such as coal, lignites and the like prior to utilization such as by combustion, the invention in preferred embodiments processes such materials by resonance disintegration including inter alia subjection to rapid pressure increases and decreases to reduce the materials to particle sizes of a preferable mean value of approximately fifty microns or less. Pollutants such as sulfur, mercury and other heavy metals bound in a mineral fraction and micronized by such processing can then removed by classification techniques based on physical differences between a micronized carbonaceous fraction and the mineral fraction. Combustion of the micronized carbonaceous fraction substantially free of the mineral fraction results in emissions having reduced levels of sulfur, mercury and other toxic substances. The methods of the invention further include removal of water from carbonaceous materials such as coal, lignites and the like by subjection of such materials to resonance disintegration.