Laser Drying With Beam Shaping for Deep Moisture Removal
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Solution Overview
Problem
Conventional industrial drying methods are inefficient, consuming excessive energy and taking prolonged times due to incomplete drying and reliance on fossil fuels, with existing technologies failing to effectively penetrate and remove moisture from porous materials.
Innovation Solution
A laser drying apparatus that directs focused, beam-shaped laser energy at a target media, penetrating deeper than conventional methods, combined with complementary drying sources, to achieve efficient and uniform moisture removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional heating methods are used for industrial drying, then the drying process can be implemented, but energy consumption is excessive and drying time is prolonged
Solution Approach 1:
The patent replaces conventional thermal heating systems with a laser-based drying system. The laser provides direct, focused energy delivery to the material surface, eliminating the need for large-scale thermal fields and convection systems. This substitution results in dramatically reduced energy consumption and shorter drying times while achieving the same moisture removal objectives.
Solution Approach 2:
The laser drying system applies energy locally and selectively to specific areas of the material surface that require drying. Instead of heating the entire environment or material bulk, the laser concentrates energy precisely where moisture needs to be removed, improving energy efficiency and reducing overall drying time.
2Reliability
If conventional heating methods are used, then drying can be performed, but the heating depth is insufficient for effective moisture removal from porous materials
Solution Approach 1:
The laser system transitions the drying process from surface-level thermal conduction to deep optical penetration. The laser wavelength is selected to penetrate through the material surface and deliver energy to deeper layers where moisture resides in porous structures, achieving reliable drying throughout the material thickness rather than just at the surface.
3Productivity
If laser energy is used for drying, then energy consumption is reduced and throughput is increased, but the energy distribution must be uniformly controlled
Solution Approach 1:
The laser drying system incorporates feedback control mechanisms that monitor the drying process in real-time. Sensors detect moisture content and energy absorption characteristics, and the system automatically adjusts laser power, scanning speed, and beam positioning to maintain uniform energy distribution across the material surface, ensuring consistent drying quality at high throughput.
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
Reduces energy consumption by 25-35% and increases throughput by utilizing laser energy penetration, while maintaining product quality, and can be powered by environmentally friendly electricity sources.
Implementation Method 1
A laser passes through a lens or beam shaping element for directing the energy in the form of light incident upon the target media for drying
Implementation Method 2
The laser energy penetrates the target media to a depth greater than conventional heating methods
Data Source
AI summary
A laser drying apparatus efficiently directs laser energy at a target media in an industrial environment. Typical industries include food production, continuous paper and sheet goods, and other suitable porous articles where moisture content is abated. A laser passes through a lens or beam shaping element for directing the laser energy incident upon the target media for drying. A beam-shaped form is preferable for even energy distribution over an area of the target media. Focused, beam shaped laser energy provides more efficient energy transfer to the target media over conventional radiant and/or convection heating. Electrical sources may be selected from environmentally favorable generation sources. The laser energy penetrates the target media to a depth greater than conventional heating methods, and may be combined with complementary heating and drying sources, such as convective air streams or radiated heating for receiving an aggregate drying energy by the target media.