Static Emulsification Truck for Intrinsic Safety Emulsion Explosives
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Solution Overview
Problem
The existing mixer trucks for emulsion explosives have safety risks due to mechanical friction and the potential for explosion accidents during the emulsification and sensitization processes, particularly when foreign substances enter the mixing area or when the screw pump is used to transport the emulsion explosive.
Innovation Solution
A truck with a static emulsification and sensitization process, where the emulsion matrix and sensitizer are mixed at the terminal end of a transporting hose within a static sensitizing device, eliminating mechanical friction and forming the emulsion explosive only at the blast hole, using a static emulsification device with jet holes for mixing and a screw pump with non-rigid spiral rotors for safe transportation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a forced stirring mixer is used to mix emulsion matrix and sensitizer, then mixing efficiency is improved, but mechanical friction causes heat aggregation and safety risks increase
Solution Approach 1:
The patent replaces the forced mechanical stirring system with a static mixing device that uses fluid flow dynamics to achieve mixing. The emulsion matrix and sensitizer are mixed through controlled flow paths and pressure differentials without mechanical contact, eliminating friction-generated heat and associated safety risks while maintaining mixing efficiency.
Solution Approach 2:
The invention uses hydraulic pressure to drive the mixing process. Pumps deliver the emulsion matrix and sensitizer through a static mixing device where fluid dynamics create the mixing action, replacing mechanical stirring with a hydraulic-based system that avoids mechanical friction and heat generation.
2Productivity
If a screw pump is used to transport emulsion explosive, then loading efficiency is improved, but mechanical friction and potential for explosion accidents increase
Solution Approach 1:
The patent replaces the screw pump's mechanical conveying mechanism with a hydraulic pressure-based transport system. The emulsion explosive is transported through hoses and pipes using pressure differentials created by pumps, eliminating mechanical friction and the risk of static discharge or heat generation associated with screw pump operation.
Solution Approach 2:
The invention extracts and removes the screw pump component from the system entirely, replacing it with a hose-based hydraulic transport system. This eliminates the mechanical elements that cause friction and safety risks while preserving the loading function through pressure-driven fluid transport.
3Device complexity
If emulsion explosive is formed before loading into blast hole, then loading process is simplified, but safety risks during transportation increase
Solution Approach 1:
The patent performs preliminary mixing of the emulsion matrix and sensitizer components separately and transports them to the blast hole location, where the final mixing occurs just before loading. This ensures the explosive is formed at the point of use rather than being transported in finished form, reducing transportation risks while maintaining process efficiency.
Solution Approach 2:
The invention segments the explosive components (emulsion matrix and sensitizer) and keeps them separate during transport, combining them only at the final loading stage. This segmentation prevents the formation of sensitive explosive material during transportation while allowing efficient loading through on-site mixing.
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 design significantly reduces safety risks by preventing the formation of sensitive emulsion explosive during transport and eliminating mechanical shear, thereby enhancing the overall safety level of the emulsion explosive loading process.
Implementation Method 1
the water phase and the oil phase are emulsified into emulsion matrix by high speed stirring in the emulsification device
Implementation Method 2
performs static mixing of sensitizer and emulsion matrix in a sensitizing device at a terminal end of a transporting hose
Implementation Method 3
the mixed explosive slurry falls into a charging spout of a screw pump under self-gravity, and is pressed into a blast hole by pressure of the screw pump
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
A truck for loading emulsion explosive in field with intrinsic safety, with its key improvement being utilizing a static emulsification device (12) and a static sensitizing device (15) to perform emulsification and sensitization, wherein, an outlet of the static emulsification device (12) is connected with a transporting hose, a terminal end of a sensitizer storage transporting system is connected to a starting end of the transporting hose, and the static sensitizing device (15) is arranged at a terminal end of the transporting hose. Its advantages include that, as the sensitizing device is arranged at the terminal end of the transporting hose and placed together with the transporting hose into a blast hole to perform sensitization in order to produce emulsion explosive product there, the transporting of emulsion explosive product is avoided, thereby reducing safety risk; on the other hand, the emulsification device and sensitizing device utilized by this truck both have static structure, so that there exists no shear or mechanical friction during the emulsification and sensitizing process, thereby reducing sensitivity, preventing explosion form happening in the production process, and ensuring production safety.