Pulsed Power Material Fragmentation via Electrical Discharges
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional material processing methods, such as mechanical grinding, are inefficient and costly, requiring high energy consumption and often involving toxic chemicals, and fail to achieve effective fragmentation and separation of materials into larger particle sizes, while also being environmentally harmful.
Innovation Solution
A pulsed power process using electric discharges between electrodes in a liquid medium generates mechanical shock waves and electric arcs to embrittle and grind materials, allowing for fragmentation, separation, and chemical recombination without mechanical parts or polluting treatments, optimizing energy use and particle size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional mechanical grinding methods are used, then materials can be processed, but energy consumption is high and processing efficiency is low
Solution Approach 1:
The patent replaces conventional mechanical grinding systems with an electrical discharge system that uses pulsed high-voltage electricity to generate electric arcs and shock waves for material fragmentation. This substitution eliminates mechanical contact between grinding media and material, reducing mechanical wear and energy consumption while improving processing efficiency through controlled electrical energy delivery.
Solution Approach 2:
The patent employs periodic pulsed electrical discharges instead of continuous mechanical grinding. The pulsed nature allows energy to be delivered in concentrated bursts, creating repeated shock waves and electric arcs that progressively fragment material more efficiently than continuous mechanical force, while allowing cooling and energy recovery between pulses.
2Productivity
If mechanical grinders with moving parts are used, then materials can be ground, but wear of parts deteriorates system efficiency and increases maintenance costs
Solution Approach 1:
The patent replaces mechanical grinding components (balls, bars, crushers) with an electrical discharge system operating in a liquid medium. The electric arcs and shock waves generated electrically fragment material without mechanical contact, eliminating wear of grinding media and maintaining consistent system efficiency over time without maintenance-related performance degradation.
3Ease of manufacture
If conventional chemical treatments are used for material processing, then materials can be processed, but toxic chemicals and inorganic reagents are required which are harmful to the environment
Solution Approach 1:
The patent replaces chemical treatment methods with an electrical-physical process using pulsed electrical discharges in a liquid medium. The electric arcs and shock waves achieve material fragmentation and separation without requiring toxic chemicals or inorganic reagents, eliminating environmental harm while maintaining material processing capability.
4Manufacturing precision
If traditional grinding methods are used, then materials can be processed, but particle sizes are smaller than desired and require additional energy for recovery
Solution Approach 1:
The patent controls particle size by adjusting electrical discharge parameters (voltage, pulse duration, frequency, electrode configuration) rather than relying on mechanical grinding intensity. This allows optimization of energy input to achieve larger, more useful particle sizes that reduce subsequent processing energy requirements, while maintaining manufacturing precision through electrical parameter control.
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 process reduces energy costs and environmental impact by achieving efficient fragmentation and separation of materials into larger particle sizes, promoting chemical recombination, and eliminating the need for toxic chemicals and mechanical wear, while enhancing processing speed and reducing maintenance.
Implementation Method 1
the energy of these electrical discharges, the voltage between the electrodes, the switching time, the frequency of the discharges are chosen such that the said discharges produce a mechanical shock wave which propagates on the materials and/or products to be treated in the reactor
Implementation Method 2
The passage of the electric arc through said material leads to the dislocation of the grains at the level of the points of discontinuity (cleavages, inclusions, fractures), at the level of the intergranular contacts, and the rupture of certain chemical bonds
Data Source
AI summary
The invention relates to a method for reusing materials and/or products by pulsed power according to which a series of electrical discharges are generated between at least two electrodes in a reactor containing an ambient liquid as well as the materials and/or products to be reused, characterised in that the energy of said electric discharges, the voltage between the electrodes, the switching time and the frequency of the discharges are selected such that said discharges generate electric arcs that pass through the materials and/or products to be reused, and mechanical shock waves that propagate across the materials and/or products to be treated in the reactor. The result is fragmentation, pulverisation, dispersion and separation of the elements that make up the materials and/or products to be reused. The invention also relates to a device for implementing said method.