Fiber Web Suction Pipe Cleaning With Solvent Humidification
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Solution Overview
Problem
Existing sheet manufacturing apparatuses face issues with dust adhering to the suction path due to the generation of dust from the web during the manufacturing process, which affects the efficiency and cleanliness of the system.
Innovation Solution
A fiber body manufacturing apparatus and method that includes a forming section, a belt with holes for transporting a fiber mixture, a humidifying section to apply a solvent, and a suction pipe to adsorb the mixture, with a cleaning operation to soften and remove dust from the suction pipe using the solvent, followed by drying the solvent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the suction section is used to transport the web, then the web can be moved through the manufacturing process, but dust generated from the web adheres to the suction path
Solution Approach 1:
The humidifying section applies moisture to the web before it reaches the suction path, softening the web material and reducing dust generation during suction transport. This preliminary humidification prevents dust formation at the source while maintaining effective web transport through the suction section.
Solution Approach 2:
Moisture acts as an intermediary substance between the web and the suction path. By introducing moisture into the system, the web surface becomes less prone to generating dust particles during suction, effectively mediating the interaction between the suction force and the web material to prevent harmful dust accumulation.
2Productivity
If the suction pipe continuously operates to transport the mixture, then production continues efficiently, but dust accumulates on the suction pipe requiring cleaning
Solution Approach 1:
The system alternates between production mode and cleaning mode in periodic cycles. During production, the suction pipe transports the fiber mixture continuously. When dust accumulation reaches a threshold, the system switches to cleaning mode where the humidifying section applies moisture to soften and remove dust from the suction pipe, then dries it with heated air. This periodic cleaning maintains suction pipe reliability without significantly interrupting overall production efficiency.
Solution Approach 2:
The humidifying section serves dual functions: it humidifies the web during production and cleans the suction pipe during maintenance cycles. By making the humidifying section self-sufficient for both production and cleaning tasks, the system eliminates the need for separate cleaning equipment, allowing the suction pipe to be maintained using existing system components.
3Productivity
If dust adheres to the suction path, then the suction efficiency decreases, but removing dust requires additional cleaning operations
Solution Approach 1:
The humidifying section is designed to perform multiple functions: humidifying the web during production and cleaning the suction pipe when needed. This multi-functionality eliminates the need for separate cleaning devices, maintaining suction efficiency while avoiding increased device complexity. The same component that adds moisture to the web also serves to soften and remove dust from the suction path.
Solution Approach 2:
The system changes the physical parameters of the dust by applying moisture, transforming it from a dry, adhered state to a softened, removable state. By changing the moisture content parameter of the dust on the suction pipe, the system enables easy removal without complex mechanical cleaning mechanisms, maintaining both suction efficiency and device simplicity.
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
Effectively removes dust adhering to the suction pipe by softening and suction, maintaining the cleanliness and efficiency of the manufacturing process, and preventing dust accumulation.
Implementation Method 1
a suction pipe that sucks air through the holes to adsorb the mixture onto the belt
Implementation Method 2
the humidifying section performs a cleaning operation of softening dust generated from the mixture and adhering to the suction pipe by applying the solvent
Implementation Method 3
removing the softened dust, and then drying the solvent adhering to the suction pipe by performing suction by the suction pipe
Implementation Method 4
drying the solvent adhering to the suction pipe by performing suction by the suction pipe
Data Source
AI summary
In a fiber body manufacturing apparatus, after a mixture is transported from a second mesh belt, a first humidifying section performs a cleaning operation of softening dust generated from the mixture and adhering to a “suction pipe” by applying a solvent, removing the softened dust, and then drying the solvent adhering to the “suction pipe” by performing suction by the “suction pipe”.