Furnace Carousel for Automated Sample Loading
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Solution Overview
Problem
Existing furnace systems for sample preparation in analytical techniques like XRF and ICP MS are cumbersome and time-consuming due to batch operation, requiring manual loading and unloading of crucibles, which limits efficiency and productivity.
Innovation Solution
A furnace with a carousel system that rotates crucibles about an axis and a mechanism for automated movement of crucibles perpendicular to the axis, allowing for sequential loading, heat treatment, and unloading, along with a control system for managing temperature, rotation rate, and duration of heat treatment, enabling automated operation and reduced thermal energy loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If batch operation with manual loading and unloading is used, then device complexity is reduced, but productivity and time efficiency deteriorate
Solution Approach 1:
The furnace system is segmented into multiple functional modules: a carousel module with multiple receiving stations for simultaneous sample processing, a heating module, and an automated loading/unloading module with robotic arms. This segmentation enables parallel processing of multiple samples while maintaining manageable complexity through modular design.
Solution Approach 2:
The system implements self-service through automated control where the control system automatically sequences the operations of loading crucibles, rotating the carousel, heating samples, and unloading processed samples without requiring manual intervention at each step, thereby improving productivity while keeping the operational interface simple.
2Productivity
If automated carousel system with multiple receiving stations is implemented, then productivity improves, but device complexity increases
Solution Approach 1:
The carousel mechanism serves multiple functions: it holds multiple crucibles simultaneously, rotates to position different crucibles for loading and unloading, and enables continuous operation by maintaining a queue of samples. This multi-functionality improves productivity without requiring separate mechanisms for each function.
Solution Approach 2:
The robotic arms act as intermediaries between the external environment and the carousel system, handling the complex tasks of loading and unloading crucibles while the carousel itself remains a relatively simple rotating platform with multiple stations. This intermediary approach manages complexity by separating functions.
3Loss of time
If manual loading and unloading operations are performed, then ease of operation is maintained, but loss of time increases
Solution Approach 1:
Multiple crucibles with samples are pre-loaded onto the carousel in advance before the heating process begins. The carousel is pre-positioned with crucibles at various stations, so that while one sample is being processed, other samples are already in place ready for loading or awaiting unloading. This preliminary action eliminates waiting time and accelerates the overall process.
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 automated system significantly reduces the time and effort required for sample preparation, enhancing efficiency and productivity by allowing for continuous operation and precise control over the sample treatment process, resulting in homogeneous glass beads suitable for analysis.
Implementation Method 1
a heater arranged for heating an interior portion of the housing to a temperature sufficient for causing melting of each sample
Implementation Method 2
heating the crucible with the respective samples, such as a suitable mixture of a mineral sample material and a flux, to a temperature to effect melting of each sample and flux
Implementation Method 3
the carousel being arranged for rotating the crucibles about an axis when the crucibles are positioned in respective receiving stations
Data Source
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AI summary
The present disclosure provides a furnace and a method for preparing fused (homogenised) samples for sample analysis. The furnace comprises a housing and a heater arranged for heating an interior portion of the housing to a temperature sufficient for causing melting of the samples. The furnace also comprises a carousel that is positioned in the housing. The carousel has a plurality of receiving stations for receiving crucibles containing respective samples and is arranged for rotating the crucibles about an axis when the crucibles are positioned in respective receiving stations. The furnace also comprises a mechanism for moving the crucibles relative to the respective receiving stations and relative to the housing to load and unload the carousel.