Multi-Flame Melting of Inclined Material Piles for Uniform Heating
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Solution Overview
Problem
Existing melting processes face challenges in uniformly heating unmelted material with low thermal conductivity due to uneven energy distribution from flames, leading to imbalanced melting and reduced production efficiency.
Innovation Solution
A melting process where unmelted material forms a pile with a larger base area than top area, and flames are directed at the inclined free surface in at least two different acute angles, regulating thermal energy and impulse to optimize melting without mechanical degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single flame is used to heat the inclined free surface of the pile, then the flame can be simple to implement, but the energy distribution becomes uneven and melting is imbalanced
Solution Approach 1:
The single flame is divided into multiple flames (at least two) that are directed at the inclined free surface from different directions. Each flame creates a separate impact zone at different vertical levels, ensuring more uniform energy distribution across the pile surface and preventing localized overheating or underheating.
Solution Approach 2:
Different flames are directed at different vertical levels of the inclined free surface, with each flame impacting a specific zone. This allows for localized heating control where each impact zone receives appropriate thermal energy based on its position, achieving uniform overall melting while maintaining simplicity in the overall system design.
2Productivity
If flame power is increased to accelerate melting, then melting speed improves, but mechanical degradation of the pile structure occurs
Solution Approach 1:
The power of each flame is dynamically regulated based on its impact zone location and the pile's structural state. By controlling the impulse of multiple flames rather than using one high-power flame, the system achieves high melting speed while distributing the mechanical stress across different zones, preventing catastrophic structural failure.
Solution Approach 2:
Multiple flames are used to deliver thermal energy partially to different sections of the pile simultaneously. This distributed approach allows each flame to operate at moderate power levels while collectively achieving high melting productivity, avoiding the excessive localized impulse that would degrade pile structure.
3Reliability
If loading speed is reduced to ensure complete melting, then melting completeness improves, but production efficiency decreases
Solution Approach 1:
Multiple flames are positioned to preheat different vertical levels of the pile simultaneously before complete melting occurs. This preliminary distributed heating ensures that all sections of the pile receive adequate thermal energy in advance, allowing faster loading rates while maintaining complete melting and high production efficiency.
4Reliability
If flames are directed at higher impulse to ensure impact, then flame contact with free surface is guaranteed, but mechanical entrainment of unmelted material increases
Solution Approach 1:
The impulse of each flame is dynamically regulated to achieve reliable impact on the free surface while maintaining pile structural integrity. By distributing the impulse across multiple flames at different vertical levels, each flame can operate at optimal impulse levels that ensure contact without causing excessive mechanical entrainment of unmelted material.
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 ensures even heat distribution across the pile, preventing overheating and mechanical degradation, enhancing production efficiency and enabling energy savings through thermal recovery systems.
Implementation Method 1
the thermal energy transferred to the unmelted material in the pile by the flames is distributed over the height of the pile
Implementation Method 2
Heating the inclined free surface of a pile with a single flame
Implementation Method 3
the impulse of the flames is regulated so that they impact the free surface without mechanical degradation by the flames of the structural integrity of the pile
Data Source
Figure 1
AI summary
Melting process in which the unmelted material forms a pile 30 having a free surface 40 inclined with respect to the vertical in the furnace 10; said unmelted material is heated by means of flames 51, 52, 53 with regulated power and impulse directed towards the free surface 40 along at least two directions α1, α2, α3 forming different acute angles θ1, θ2, θ3 with the horizontal plane so that the flames 51, 52, 53 define impact zones 41, 42, 43 on the free surface 40 which are located at at least two different vertical levels h1, h2, h3.