Defibration Device Oblique Supply Pipe Axis Diffusion
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Solution Overview
Problem
Existing defibration devices face inefficiencies in diffusing coarsely crushed paper pieces, leading to incomplete defibration and prolonged processing times due to the material being supplied orthogonally to the rotation axis, resulting in lump formation and uneven distribution.
Innovation Solution
A defibration device design featuring a rotator with diffusion vanes and defibration blades, where the pipe axis intersects the rotation track of the diffusion vanes, ensuring uniform diffusion and distribution of coarsely crushed pieces before defibration, preventing lump formation and enhancing processing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If material is supplied from the supply port in a direction orthogonal to the rotation axis of the rotator, then the structure is simple, but the material is transferred in the form of lumps toward the defibration blade without being sufficiently diffused
Solution Approach 1:
The patent changes the supply direction from orthogonal (90 degrees) to oblique (45 degrees) relative to the rotation axis, introducing a dimensional angle change that allows the material to be ejected toward the rotation track of the diffusion vane. This angular adjustment creates a new spatial dimension for material flow, enabling better interaction with the rotating diffusion vane and achieving more uniform distribution without increasing structural complexity.
2Device complexity
If material is supplied in a direction orthogonal to the rotation axis, then the device structure is simple, but defibration takes a long time due to insufficient diffusion
Solution Approach 1:
The patent applies preliminary action by directing the material flow toward the rotation track of the diffusion vane before the material reaches the defibration blade. The oblique supply direction ensures that the diffusion vane has already begun to diffuse the material by the time it reaches the defibration stage, pre-processing the material distribution and reducing the overall defibration time without adding complex structures.
3Device complexity
If material is supplied orthogonal to the rotation axis, then the pipe arrangement is simple, but lumps are formed and defibration is incomplete
Solution Approach 1:
The patent introduces asymmetry by using an oblique supply direction (45 degrees) instead of a symmetric orthogonal direction. This asymmetric angle creates an optimized flow path that directs material toward the rotation track of the diffusion vane, preventing lump formation and ensuring complete defibration. The asymmetric angle allows the material to interact more effectively with the rotating diffusion vane, improving reliability without complicating the pipe arrangement.
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 ensures uniform diffusion and rapid defibration of coarsely crushed pieces, preventing lumps and reducing processing time, thereby improving the efficiency and effectiveness of the defibration process.
Implementation Method 1
a diffusion vane that is provided on a side surface of the rotating portion and that diffuses a supplied material
Implementation Method 2
a defibration blade that is provided on the side surface of the rotating portion and that defibrates the diffused material
Data Source
AI summary
A defibration device includes: a casing having a supply port through which small pieces containing fibers are supplied and a discharge port through which defibrated materials of the small pieces are discharged; a rotator rotatably installed in the casing; and a pipe body which is coupled to the supply port and from which the small pieces are ejected into the casing. The rotator includes at least one diffusion vane provided at a side portion of the rotator that faces the supply port and diffusing the small pieces ejected from the pipe body, and at least one defibration blade provided on an outer periphery portion of the rotator and defibrating the small pieces, and a pipe axis direction of the pipe body intersects a rotation track of the diffusion vane when the rotator rotates.