Brush Defibrizing of Fibrous Composition Without Rotor Clogging
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Solution Overview
Problem
Existing defibration devices using rotating elements are hazardous for operators due to their moving parts, and there is a need for a safer and more efficient method to decompact and aerate fibrous materials like insulating fibers.
Innovation Solution
A defibration device with brush elements featuring a helical helix rear part and perpendicular front bristles, paired with rotating metal cards, which safely decompacts and aerates fibrous materials, ensuring operator safety and improved efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a rotor is used to spin the fibrous composition, then defibrization can be achieved, but the rotor may become clogged with fibers and require frequent cleaning
Solution Approach 1:
The device divides the defibrization function into two separate components: a rotor that spins the fibrous composition and a separate impeller that removes fibers. This segmentation prevents the rotor from becoming clogged while maintaining efficient defibrization, as each component has a specialized function and can be cleaned independently or replaced without affecting the other.
Solution Approach 2:
The invention extracts the fiber removal function from the rotor and assigns it to a separate impeller. By taking out the fiber removal function, the rotor is freed from clogging problems and can focus solely on spinning the fibrous composition, thereby maintaining continuous defibrization efficiency without frequent cleaning interruptions.
2Productivity
If the fibrous composition is spun at high speed, then defibrization is effective, but energy consumption increases
Solution Approach 1:
The device uses periodic action through the rotation of the rotor and impeller to achieve defibrization. Instead of continuous high-speed spinning, the periodic rotation creates sufficient mechanical action to separate and remove fibers while consuming less energy. The periodic motion allows the fibrous composition to be processed in cycles, maintaining effectiveness while reducing overall energy consumption.
Solution Approach 2:
The impeller acts as an intermediary between the rotor and the fibrous composition. It receives the mechanical energy from the rotor and transfers it to the fibers in a more efficient manner, enabling effective defibrization at lower rotational speeds. This intermediary mechanism reduces the energy required for the rotor to directly process the fibers.
3Ease of manufacture
If the device structure is simplified, then manufacturing cost decreases, but defibrization performance may be compromised
Solution Approach 1:
The device segments the defibrization function into a rotor and an impeller, each with simple, well-defined structures. This segmentation allows for straightforward manufacturing of individual components that can be assembled together, maintaining manufacturing simplicity while ensuring reliable defibrization performance through the coordinated action of the two components.
Solution Approach 2:
The rotor and impeller are designed as universal components that can be manufactured using standard processes and assembled to create a fully functional defibrization system. Their simple, standardized structures facilitate easy manufacturing while their combined action ensures reliable defibrization performance, balancing manufacturing cost with operational effectiveness.
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 device effectively decompacts and aerates fibrous materials into individual non-agglomerated fibers, reducing density and enhancing safety by using elastic bristles that regulate fiber flow and facilitate distribution.
Implementation Method 1
a rotor for spinning the fibrous composition
Implementation Method 2
an impeller for removing fibers from the fibrous composition
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The invention relates to a defibrizing device (1) for defibrizing a fibrous composition (2), comprising a device (3) for collecting the fibrous composition (2) and at least one brush-type rotary element (34, 35) that has at least one row of bristles (4) and is able to de-compact and aerate said fibrous composition (2) so as to obtain non-agglomerated individual fibers (21), said rotary element (34, 35) having a rotational shaft (340, 350) mounted perpendicular to the lateral walls (30) of the collecting device (3), and a distribution device (5) for ejecting the individual fibers (21) which communicates with the collecting device (3). The invention further relates to the use of said defibrizing device for de-compacting and aerating a fibrous composition (2) so as to obtain non-agglomerated individual fibers (21).