Paper Scrap Storage Airflow Control to Prevent Dust Ejection
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Solution Overview
Problem
Existing paper-material supply apparatuses face issues with paper material and dust being blown out due to convection and impact forces during input, leading to inefficiencies and waste of materials.
Innovation Solution
A material storage apparatus with a lid, humidification, and air circulation system that maintains negative pressure when open to prevent material ejection and stabilize humidity, using blowers to manage airflow and humidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If paper material is input into the material container, then the material container needs to be open for loading, but paper material and dust are blown out due to convection and impact forces
Solution Approach 1:
The patent applies preliminary anti-action by generating negative pressure inside the material container before material input occurs. The air circulation portion creates a suction force that counteracts the convective upward flow and impact forces generated during material loading, preventing paper material and dust from being blown out of the container while maintaining ease of operation.
2Loss of substance
If the lid is closed to prevent material ejection, then material loss is reduced, but humidity control becomes difficult
Solution Approach 1:
The lid serves multiple functions: it prevents material ejection by closing the container opening, and it integrates humidity control functionality through the humidification portion that supplies humidified air to the interior space. This multi-functionality approach reduces device complexity while achieving both material retention and humidity control objectives.
Solution Approach 2:
The humidification portion continuously supplies humidified air to the material container interior, maintaining appropriate humidity levels for paper material storage. This continuous action ensures that even when the lid is closed to prevent material loss, the humidity control function remains active and effective.
3Productivity
If positive pressure is maintained in the material container, then material input is facilitated, but convection causes material and dust to blow upward and out
Solution Approach 1:
The patent inverts the conventional pressure approach by maintaining negative pressure instead of positive pressure in the material container. This inversion prevents convective upward flow that causes material ejection, while the air circulation portion still facilitates material input through controlled suction forces that draw material into the container without generating harmful convective currents.
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
Prevents material and dust ejection during input, maintains humidity, and ensures efficient material handling and measurement.
Implementation Method 1
a humidification portion (220) including a first blower (223) and configured to supply humidified air into the material container (201)
Implementation Method 2
an air circulation portion (230) including a second blower (232) and configured to suck air in the material container (201), when the lid (210) is open, the material container (201) has a negative pressure
Implementation Method 3
a blower configured to blow air into the transportation path member to generate an air flow that sends the paper material input from the paper-material input portion into the transportation path member to the discharge portion
Data Source
AI summary
A material storage apparatus includes: a material storage portion configured to store scraps of paper and including a material container and a lid, the material container having a material inlet enabling the scraps of paper to be input into the material container, the lid being configured to open and close the material inlet; a humidification portion including a first blower and configured to supply humidified air into the material container; and an air circulation portion including a second blower and configured to suck air in the material container, and when the lid is open, the material container has a negative pressure.