Fibre Metering Vessel Pneumatic Transport
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Solution Overview
Problem
Existing fiber metering systems face challenges in precise dosing due to the carryaway of isolated fibers by water rinsing the perforated wall of rotating drums, making accurate measurement complex.
Innovation Solution
A fiber metering system with a rotating drum that remains stationary in one operating state and rotates in another, featuring a fluid transport device using compressed air to collect and transport isolated fibers, which includes a suction head and air regulating valve to control the suction force, and a receiving hopper to recover fibers, enhancing precision and reducing losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If water is used to rinse the perforated wall of the rotating drum, then the fibers are cleaned, but the isolated fibers are carried away by the water stream, making accurate dosing difficult
Solution Approach 1:
The harmful effect of water carrying away fibers is eliminated by removing the water rinsing function from the system. Instead of using water to clean the perforated wall, the patent uses a rotating drum that mechanically disassembles fiber bundles and ejects isolated fibers directly into the tank, avoiding the carryaway problem entirely.
Solution Approach 2:
The patent employs a fluidic transport device using compressed air to transport the isolated fibers from the receiving hopper to the dosing location. This pneumatic system replaces the problematic water stream, allowing fiber transport without the adverse effect of water carrying fibers away uncontrollably.
2Productivity
If a rotating drum with perforated wall is used to disassemble fiber bundles, then fibers are isolated and ejected into the tank, but water rinsing carries the isolated fibers away
Solution Approach 1:
The patent converts the potential harm of water flow into benefit by using compressed air instead. The pneumatic transport system utilizes controlled air flow to pick up and transport fibers precisely where needed, converting what would be a harmful carryaway effect into a controlled and beneficial transport mechanism.
Solution Approach 2:
The patent changes the physical parameter of the fluid medium from liquid (water) to gas (compressed air). This parameter change fundamentally alters the interaction with the fibers, eliminating the unwanted carryaway effect while maintaining the ability to transport fibers efficiently through the pneumatic system.
3Productivity
If the processing unit continuously rotates to eject fibers, then dosing can proceed, but fiber loss increases due to water carryaway
Solution Approach 1:
The patent replaces the water-based transport system with a pneumatic transport system using compressed air. The fluidic transport device with suction head creates a controlled air stream that picks up fibers from the receiving hopper and transports them to the dosing location, enabling continuous dosing without the precision loss caused by water carryaway.
Solution Approach 2:
The patent introduces an intermediary pneumatic transport system between the fiber ejection point and the dosing location. The compressed air acts as an intermediary medium that carefully transports fibers without the adverse effects of water, maintaining both continuous operation and dosing accuracy.
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 system achieves precise metering and reduced fiber loss by utilizing a pneumatic transport mechanism that synergizes with gravity and suction to efficiently collect and transport fibers, improving the accuracy and reliability of fiber dosing across various scales.
Implementation Method 1
the insulated fiber collector has at its end facing the receiving hopper at least one suction head adapted to draw, under the effect of a vacuum in the fluid transport device, the insulated fibers located in the receiving hopper
Implementation Method 2
the suction head may include an air regulating valve adapted to control a force induced, via the opening, by the suction depression of the fluid transport device
Implementation Method 3
the fluid transport device is pneumatic, based on a flow of compressed air
Implementation Method 4
The preferred axis is perpendicular to gravity
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The invention relates to a fiber dosing tank (1) comprising: • a loading port (10) adapted to receive fiber clumps, • a processing unit (11) including a rotating drum with a perforated wall adapted to disassemble the fiber clumps and eject the individual fibers. According to the invention, the tank (1) includes a receiving hopper adapted to collect the individual fibers ejected from the processing unit (11). The invention also relates to a fiber dosing system (2) including said tank (1) and a fluidic transport device (3) cooperating with the receiving hopper (12) and adapted to transport the individual fibers to a remote container (4).