Dry Defibrating Unit Using Air Flow and Rotating Mechanism
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Solution Overview
Problem
Current sheet manufacturing processes rely heavily on wet systems, which are energy-intensive and environmentally costly, and lack efficient dry-type methods for defibrating raw materials into fibers, leading to challenges in energy saving and environmental protection.
Innovation Solution
A defibrating unit with a rotating unit and a fixing unit, where the rotating unit includes protruding sections and a feeding blade to generate air flow, and the fixing unit has layered plates with convexities, facilitating a dry-type defibrating process by untangling fibers using air flow and mechanical action.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a wet system is used for disintegrating raw materials, then the disintegration process can be performed effectively, but a large amount of water is consumed and energy-intensive water removal and drying processes are required
Solution Approach 1:
The patent replaces the wet mechanical disintegration system with a dry air-flow based system. The defibrating unit uses rotating units that generate air flow to transport and disintegrate raw materials into fibers without water, eliminating the need for water removal and drying processes while maintaining effective disintegration.
Solution Approach 2:
The invention employs pneumatic principles by using air flow generated by rotating units to transport defibration objects through the defibrating unit. The air flow carries the materials through the processing zone and transports them to the output port, replacing water-based transport and processing systems.
2Productivity
If a wet system is used for sheet manufacturing, then the manufacturing process can be performed, but large amounts of equipment for water supply, electrical power, and water discharge are required
Solution Approach 1:
The patent extracts and eliminates the water supply, water treatment, and water discharge equipment from the sheet manufacturing system by implementing a dry-type defibrating process. This removal of water-related infrastructure simplifies the overall device complexity while maintaining manufacturing capability.
Solution Approach 2:
The invention substitutes water-based mechanical processing systems with air-flow based systems. The defibrating unit uses rotating components that generate air currents to perform material transport and processing, replacing complex water handling equipment with simpler pneumatic mechanisms.
3Device complexity
If only air flow generated by a rotating unit is used to transport defibration objects, then the system is simplified, but transfer problems occur at the input and output ports
Solution Approach 1:
The patent introduces a feeding blade as an intermediary component between the input port and the air flow system. The feeding blade guides and pushes defibration objects into the air flow, ensuring reliable material transfer into the defibrating unit. At the output port, another feeding blade or similar intermediary component captures fibers from the air flow and directs them to the output, preventing material loss and ensuring reliable transfer.
Solution Approach 2:
The feeding blade performs preliminary action by pre-positioning and guiding defibration objects before they enter the air flow transport system. This preliminary guidance ensures that materials are properly oriented and positioned for efficient air flow transport, preventing transfer problems at the input port.
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
This configuration enables a stable and efficient dry-type defibrating process, reducing energy consumption and environmental impact by effectively processing defibration objects into fibers with minimal material deviation and transfer issues, thereby enhancing the manufacturing of strong sheets.
Implementation Method 1
a flow of air is generated by rotating a rotating unit and defibration object is transported using the flow of air
Implementation Method 2
a defibrating apparatus with a system where a flow of air is generated by rotating a rotating unit and defibration object is transported using the flow of air
Data Source
AI summary
A defibrating unit includes a rotating unit and a fixing unit. The rotating unit and the fixing unit are arranged so as to be apart from each other with a gap therebetween in an intersecting direction that intersects with a rotating shaft of the rotating unit. The rotating unit includes a surface that stands up along an axial direction of the rotating shaft and that is arranged on a side section in the axial direction and arranged at a side where a defibration object is introduced. The fixing unit includes a plurality of plates that are layered in the axial direction, and the plates has a plurality of convexities that protrude at a side facing the rotating unit.