Sliding Nozzle Assembly for Liquid Metal Atomizer
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Solution Overview
Problem
The nozzle used in the atomization process for producing metallic powders experiences wear and clogging, limiting the duration of the atomizing campaign and resulting in productivity and cost issues due to the need for frequent interruptions during production.
Innovation Solution
A sliding nozzle assembly system that allows for quick replacement of nozzles during continuous production, utilizing a support structure and mechanical device to move the nozzle assemblies parallel to the liquid metal reservoir opening, minimizing disruption to the atomization process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed nozzle assembly is used in the atomization process, then the equipment structure is simple and easy to operate, but the nozzle suffers from wear and clogging which limits the atomizing campaign duration and reduces productivity
Solution Approach 1:
The nozzle assembly is transformed from a fixed component to a movable one, allowing it to be repositioned along the support structure. This dynamic configuration enables the nozzle to be moved to different positions (e.g., from an initial position to a second position) without requiring complete disassembly, thereby extending the atomizing campaign duration while maintaining manageable system complexity through a straightforward mechanical translation mechanism.
Solution Approach 2:
The nozzle assembly system is divided into separable components including the nozzle assembly itself, the support structure, and the translation mechanism. This segmentation allows the nozzle assembly to be independently moved or replaced without affecting the entire atomization system, thus improving productivity by enabling quick nozzle changes while keeping the overall device complexity low through modular design.
2Reliability
If the nozzle assembly is changed frequently to maintain production quality, then product quality stability is maintained, but production downtime increases and productivity decreases
Solution Approach 1:
The support structure is pre-configured with multiple positioned nozzles (initial position and second position) along its length. This preliminary arrangement allows the system to quickly switch between nozzles without requiring time-consuming setup or alignment procedures, thereby maintaining product quality stability through consistent nozzle positioning while minimizing production downtime and maximizing productivity.
Solution Approach 2:
The movable nozzle assembly enables dynamic switching between different nozzle positions during operation. This dynamic capability allows the system to maintain reliable product quality by replacing worn nozzles with fresh ones from predetermined positions without interrupting the overall production flow, thus resolving the contradiction between quality reliability and production productivity.
3Productivity
If a movable nozzle assembly system is implemented to extend atomizing campaign duration, then productivity is improved, but the device complexity and mechanical system requirements increase
Solution Approach 1:
The system is segmented into distinct functional modules: the support structure with integrated positioning features, the movable nozzle assembly, and the translation mechanism. This segmentation allows each component to be optimized independently with straightforward designs, improving atomizing campaign duration through easy nozzle repositioning while avoiding excessive device complexity by keeping each module simple and well-defined.
Solution Approach 2:
The support structure serves multiple functions: it provides mechanical support for the nozzle assembly, defines the translation path, positions the nozzle at predetermined locations, and facilitates the movement mechanism. This multi-functionality reduces the need for additional separate components, thereby improving productivity through extended campaign duration while minimizing device complexity by consolidating functions into a single integrated structure.
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
Enables rapid nozzle changes without significantly impacting productivity, reducing downtime and maintaining stable product quality by allowing for swift and safe management of the liquid metal flow during nozzle changes.
Implementation Method 1
The fluid hits the metal stream as it exits the nozzle, creating a turbulence which results in the formation of droplets
Data Source
AI summary
A method to quickly change a nozzle assembly suitable for use in a liquid metal atomizing process in which a liquid metal held in a liquid metal reservoir and exiting said metal reservoir through a reservoir opening is atomized by an atomizing fluid to form a metallic spray in an atomizing tower. A sliding nozzle assembly system in which replacement nozzles can be changed on the fly during production.