Programmable Electronic Rock Blasting Initiator With Low-Voltage Delay Control
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Solution Overview
Problem
Current rock blasting methods using explosives cause environmental disruption, safety risks, and inefficiencies due to incorrect blasting or drilling, leading to fragmentation and structural destabilization, and the use of high-voltage initiators limits the scalability and reliability of rapidly expanding metallic mixtures for fragmentation.
Innovation Solution
A non-explosive programmable electronic initiator system that activates rapidly expanding metallic mixtures with low voltage (24-35V), provides a programmable delay system (1-64,000 ms), and includes a multi-test system to ensure safe and efficient fragmentation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional explosives are used for rock blasting, then rock fragmentation is achieved, but environmental disruption and safety risks increase
Solution Approach 1:
The patent replaces conventional chemical explosive systems with an electronic initiation system that uses electrical signals to trigger rapid expansion of metallic mixtures. The electronic detonator uses a microprocessor-controlled circuit to generate precise electrical impulses, substituting chemical combustion with electro-thermal-mechanical energy conversion to achieve rock fragmentation without traditional explosives.
Solution Approach 2:
The patent changes the fundamental parameters of the initiation system by using programmable delay times (0-65535 milliseconds) and controlled voltage output (5V or 12V) to regulate the expansion process. The electronic system allows precise control over timing and energy delivery, transforming the uncontrolled chemical reaction of conventional explosives into a precisely managed physical expansion process.
2Reliability
If high-voltage initiators are used for rapidly expanding metallic mixtures, then activation is achieved, but scalability and reliability are limited
Solution Approach 1:
The patent implements a dynamic voltage output system that can adapt between 5V and 12V based on the specific requirements of the metallic mixture being activated. The electronic detonator contains a microprocessor-controlled voltage regulator that dynamically adjusts the output voltage to ensure reliable activation across different applications and scales, from small-scale experimental setups to large-scale industrial operations.
Solution Approach 2:
The electronic initiation system is designed as a universal platform that can activate various types of rapidly expanding metallic mixtures under different conditions. The system incorporates multiple output configurations, programmable delay ranges, and adjustable voltage levels, making it adaptable to diverse applications including mining, construction, and research, thereby achieving both reliability and scalability.
3Manufacturing precision
If programmable delay system is implemented, then precise control over fragmentation is achieved, but device complexity increases
Solution Approach 1:
The electronic detonator incorporates an integrated microprocessor unit that automatically manages the programmable delay function. The device contains an internal clock and memory that self-regulate the delay timing without requiring external control during operation. The system programs itself with the specified delay value and autonomously executes the timed sequence, reducing operational complexity while maintaining precise control capability.
4Object-affected harmful factors
If electronic detonators are used instead of conventional detonators, then safety is improved, but cost and device complexity increase
Solution Approach 1:
The patent replaces the mechanical percussion and chemical combustion mechanisms of conventional detonators with an electronic initialization system. The electronic detonator uses electrical circuits, microprocessors, and controlled energy release to initiate the metallic mixture expansion, eliminating the need for sensitive chemical compositions and mechanical impact mechanisms, thereby improving safety despite increased electronic complexity.
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
The system enhances safety and productivity by minimizing environmental impact, reducing handling risks, and ensuring precise control over fragmentation with a large number of initiators, while eliminating non-activated capsules.
Implementation Method 1
Capacitor C7 [08], connected to transistor T2 [27], discharges, heating filament [12] to a temperature higher than 1,000° C., which activates a rapidly expanding metallic mixture
Implementation Method 2
The exothermic reaction of the activation of the first rapidly expanding metallic mixture [13] allows reaching a temperature greater than 1,200° C., which activates the second rapidly expanding metallic mixture
Data Source
AI summary
A programmable non-explosive initiator may include a capsule, a filament, a shrink sleeve, a capacitor, and a printed circuit board (PCB). The capsule includes a container tube or sleeve containing a first rapidly expanding metallic mixture. The filament is coated by a second rapidly expanding metallic mixture and is contained by the shrink sleeve. The filament is caused to glow by a controlled discharge of the capacitor. The controlled discharge of the capacitor is controlled by the PCB. In some examples, the programmable non-explosive initiator may include electronic initiator units connected in parallel.