Microwave Curing Mineral Wool Pipe Insulation
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Solution Overview
Problem
Current methods for manufacturing mineral wool pipe sections are inefficient due to material loss, bulky machinery, frequent cleaning requirements, and atmospheric emissions, with complex setups and high energy consumption.
Innovation Solution
The method involves feeding loose mineral wool into a tubular mold, using microwave curing to simplify the apparatus and reduce emissions, eliminating material loss and machinery complexity, and conserving energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If gas-burner generated heat is used for curing, then curing efficiency is maintained, but atmospheric emissions increase and energy consumption rises
Solution Approach 1:
The patent replaces the gas-burner thermal curing system with a microwave electromagnetic field curing system. The microwave curing apparatus uses electromagnetic radiation to directly heat and cure the mineral wool preform, eliminating the need for gas combustion and associated atmospheric emissions while reducing energy consumption through more efficient direct energy transfer to the material.
2Productivity
If extensive curing air pipework and multiple cores and moulds are used, then curing capacity is maintained, but machine size becomes bulky and cleaning requirements increase
Solution Approach 1:
The patent extracts and eliminates the extensive curing air pipework from the machine structure by replacing it with a microwave curing system. This removes the complex network of pipes, multiple cores, and moulds, significantly simplifying the machine structure while maintaining curing capacity through the microwave apparatus.
3Loss of substance
If continuous production method is used, then material loss is avoided, but production efficiency may be reduced without advanced curing technology
Solution Approach 1:
The patent implements continuous production by continuously feeding loose mineral wool into the microwave curing apparatus, which processes the material in continuous batches or continuous flow. This maintains continuous production operation, avoiding material loss from batch interruptions while the efficient microwave curing ensures high production efficiency is maintained throughout the continuous 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
This approach results in reduced material loss, simplified machinery, lower emissions, and increased efficiency with reduced operational costs and operator requirements, enabling continuous production with adjustable core and mold sizes.
Implementation Method 1
the curing is effected by microwave irradiation
Implementation Method 2
a core heatable at least over a part thereof and of a tubular external mould surrounding it and being heatable at least over a part thereof
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to a method and an apparatus for manufacturing a mineral wool pipe section for insulation purposes. The method comprises feeding wool (4) in the form of loose material into a space between a core (5) and a substantially tubular external mould (6) surrounding it, the result being a substantially tubular insulation preform. The invention relates also to a method for curing a tubular insulation preform of mineral wool.