Multi-Stage Split-Flow Emulsifier for Explosive Mixing
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Solution Overview
Problem
The production of emulsion explosive is hindered by heat accumulation and safety concerns due to mechanical shearing and high pressure requirements in traditional stator-rotor shear-type emulsifying methods, leading to potential explosions and equipment complexity.
Innovation Solution
A method and device that utilize a multi-stage split-flow process for emulsifying emulsion explosive without mechanical stirring or colloid pumping, using an oil phase and water phase mixer system with adjustable flow rates to achieve thorough mixing at low temperature and pressure, eliminating mechanical shearing and heat accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If stator-rotor shear-type emulsifying method is used, then emulsification effect is improved, but heat accumulation occurs leading to explosion risk
Solution Approach 1:
The patent replaces the traditional mechanical stator-rotor shear-type emulsifying system with a high-pressure injection system. The emulsion is prepared by injecting oil phase and water phase through nozzles under high pressure (10-20 MPa), utilizing fluid dynamic forces rather than mechanical shearing to achieve emulsification. This substitution eliminates the heat accumulation problem caused by high-speed mechanical rotation while maintaining effective emulsification.
Solution Approach 2:
The patent changes the key process parameters from low-pressure mechanical mixing to high-pressure injection (10-20 MPa). By controlling injection pressure, flow rate, and nozzle geometry, the system achieves intense mixing and emulsification without the heat generation associated with mechanical shearing. The high pressure enables the fluid phases to intermix violently upon injection, creating fine emulsion droplets.
2Productivity
If high pressure transportation is used for emulsion matrix, then mixing efficiency is improved, but equipment complexity and safety risks increase
Solution Approach 1:
The patent merges the mixing function directly into the injection system. The high-pressure injection nozzles serve dual purposes: transporting the emulsion phases and simultaneously mixing them through fluid dynamic interaction. This integration eliminates the need for separate mixing equipment, safety protection devices, and complex transmission systems, simplifying the overall equipment while maintaining high mixing efficiency.
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 approach enhances safety by reducing the risk of explosions and equipment complexity, achieving homogeneous mixing without mechanical shearing, and maintaining low pressure throughout the emulsification process.
Implementation Method 1
mixing emulsion matrix in a multi-stage fine emulsion mixer before completing the emulsification
Implementation Method 2
method for emulsifying emulsion explosive
Data Source
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AI summary
The present invention relates to a method and device for emulsifying emulsion explosive: an oil phase and a part of a water phase having undergone split-flow enter a first stage coarse emulsion mixer; after mixing, the mixture together with a part of the water phase having undergone second stage split-flow enters a second stage coarse emulsion mixer; the obtained mixture together with a part of the water phase having undergone third stage split-flow enters a third stage coarse emulsion mixer for mixing; forming a coarse emulsion matrix after multiple stages of mixing, and finally completing emulsification after mixing in a multi-stage fine emulsion mixer. The method and device mix the water phase with the oil phase multiple times according to a desired ratio, thus greatly reducing the stored explosive, with no mechanical stirring or shearing, with no heat accumulation, and with low pressure, without requiring matrix pumping, thus enhancing safety.