Blasthole Explosive Delivery with Variable Density Gassing Control
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Solution Overview
Problem
Existing systems for delivering explosives in blastholes struggle to efficiently vary the explosive energy and ensure uniform density distribution, leading to inconsistent detonation and energy release.
Innovation Solution
A system comprising a first and second gassing agent reservoir, a homogenizer, and a mixer, which homogenizes the emulsion matrix with the first gassing agent and introduces the second gassing agent at varying flow rates to form sensitized products of different densities, ensuring uniform density and energy distribution in the blasthole.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single gassing agent is used to sensitize emulsion explosives, then the system is simple, but the explosive energy cannot be varied and density distribution is inconsistent
Solution Approach 1:
The system divides the gassing agent into two separate reservoirs (first gassing agent reservoir and second gassing agent reservoir) that can be independently controlled. This segmentation allows different gassing agents to be introduced at different stages and in different quantities, enabling variation of explosive energy while maintaining manageable system complexity through modular design
Solution Approach 2:
The system introduces dynamic control by allowing the flow rate of the second gassing agent to be varied during the sensitization process. The controller can adjust the amount of second gassing agent introduced based on desired explosive energy levels, transforming a static single-agent system into a dynamic multi-agent system with adaptable explosive output
2Manufacturing precision
If gassing agent is introduced without flow rate control, then the process is simple, but gas bubble coalescence and migration occur leading to non-uniform density
Solution Approach 1:
The system incorporates flow rate controllers that monitor and regulate the introduction of gassing agents into the emulsion explosives. By controlling the flow rate of the second gassing agent, the system prevents excessive gas bubble formation that would lead to coalescence and migration, ensuring uniform density distribution through active feedback control
Solution Approach 2:
The flow rate controller acts as an intermediary device between the gassing agent reservoir and the emulsion explosives. It mediates the introduction process by precisely regulating the amount of gas introduced, preventing direct uncontrolled gas injection that would cause bubble coalescence and density non-uniformity
3Measurement precision
If multiple gassing agents are introduced at different flow rates, then explosive energy can be precisely controlled, but the system complexity increases
Solution Approach 1:
The system applies different qualities to different parts of the process by using two distinct gassing agents with potentially different properties. The first gassing agent provides baseline sensitization while the second gassing agent, introduced at controlled flow rates, provides precise explosive energy adjustment. This local differentiation of agent functions enables precise energy control
Solution Approach 2:
The system changes the parameter of gassing agent flow rate to control explosive energy. By varying the flow rate of the second gassing agent introduced into the emulsion explosives, the system can precisely adjust the amount of gas bubbles formed, thereby controlling the explosive energy output while maintaining a structured multi-reservoir architecture
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 achieves precise control over explosive energy and density, enhancing detonation consistency and efficiency by reducing gas bubble coalescence and migration, thereby optimizing the explosive performance.
Implementation Method 1
a homogenizer configured to mix the emulsion matrix and the first gassing agent into a homogenized product
Implementation Method 2
a mixer configured to mix the homogenized product with the second gassing agent to form a sensitized product
Implementation Method 3
Sensitizing is often accomplished by introducing small voids into the emulsion. These voids act as hot spots for propagating detonation.
Implementation Method 4
The system achieves precise control over explosive energy and density, enhancing detonation consistency and efficiency by reducing gas bubble coalescence and migration
Data Source
AI summary
Systems for delivering explosives with variable densities are disclosed herein. Methods of delivering explosives with variable densities and methods of varying the energy of explosives in a blasthole are disclosed herein.