Insulating Panel Production Using Segmented Mesh Belts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing apparatus for manufacturing insulating or soundproofing panels from lignocellulosic particles with binder face limitations in productivity due to mesh belts exceeding tensile load limits, restricting production speed to approximately 8 t/h.
Innovation Solution
Employing at least four separate endless mesh belts, with at least two in each zone, allowing independent operation and distribution of tensile forces, enabling higher speeds and increased productivity up to 15 t/h by reducing tensile stress on individual belts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single mesh belt system is used to transport the pressed-material mat, then the apparatus structure is simple, but the mesh belt exceeds tensile load limits and productivity is restricted to approximately 8 t/h
Solution Approach 1:
The single mesh belt system is divided into multiple separate mesh belts (at least four: first upper, first lower, second upper, and second lower mesh belts). Each mesh belt operates independently with its own drive mechanism, distributing the tensile load across multiple belts rather than concentrating it on a single belt, thereby increasing productivity without exceeding individual belt strength limits.
Solution Approach 2:
Multiple mesh belt systems are combined to work together on the same pressed-material mat. The first and second mesh belt systems operate in parallel, with each system comprising upper and lower belts that collectively transport the mat through the apparatus, sharing the load and enabling higher production speeds.
2Productivity
If the mesh belt speed is increased to increase productivity, then production capacity increases, but the mesh belt tensile strength is exceeded leading to belt failure
Solution Approach 1:
The load-bearing function is segmented across multiple independent mesh belts. Each belt operates at reduced speed and carries a fraction of the total load, allowing the system to achieve high productivity through parallel operation rather than relying on high-speed operation of a single belt, thus maintaining reliability.
Solution Approach 2:
The system changes the operational parameters from high speed on a single belt to lower speed on multiple belts. By increasing the number of belts while reducing the speed requirement per belt, the system maintains or improves productivity while reducing the tensile stress on each individual belt, preventing belt failure.
3Manufacturing precision
If a longer curing zone is implemented to process thicker mats, then product quality improves, but the required curing time increases limiting achievable speed
Solution Approach 1:
The curing process is segmented across multiple mesh belts operating in parallel. Each belt handles a portion of the material flow, allowing the curing zone to be effectively extended without increasing the residence time on any single belt. This maintains curing quality while enabling higher throughput speeds.
Solution Approach 2:
Multiple mesh belts operate continuously and simultaneously to process multiple mats in parallel. This continuous parallel operation ensures that curing is applied continuously across all materials without interruption, maintaining quality standards while increasing overall production speed and reducing the time penalty associated with longer curing zones.
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
Significantly increases production capacity and productivity while maintaining energy efficiency and panel quality through distributed friction forces and controlled steam and air application.
Implementation Method 1
Steam can be drawn from outside through the mesh belts into the pressed-material mat
Implementation Method 2
Suitable binders are, for example, those working by polycondensation or polyaddition such as, for example, PMDI
Implementation Method 3
Suitable binders are, for example, those working by polycondensation or polyaddition such as, for example, PMDI
Implementation Method 4
liquid and air can be extracted
Data Source
AI summary
The invention relates to a device and a method having a first and a second zone (Z1, Z2) for producing insulating or acoustic panels from a pressed material mat (2) which consists at least partially of lignocellulose particles coated with binders, the first zone (Z1) being designed for heating and/or compressing the pressed material mat, and the second zone (Z2) being designed for curing the pressed material mat with the aid of calibration plates (3), and there being driven circulating screen bands (5a-5f) in contact with the upper and lower pressed material mat surfaces. According to the invention, to increase the production speed, at least four circulating screen bands (5a-5f) are used, at least two of which are in operative contact with the pressed material mat (2) in the region of the first zone (Z1), and at least two of which are in operative contact with the pressed material mat (2) in the region of the second zone (Z2).