Textile Pretreatment Liquor Overflow for Dirt-Free Reuse
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Solution Overview
Problem
Existing pretreatment devices for textile goods face challenges in efficiently reusing excess liquor due to contamination from floating dirt particles, which requires complex purification processes.
Innovation Solution
A pretreatment device with an overflow pipe connected to the collecting pan, allowing liquor to be drawn from below the surface, preventing floating dirt particles from re-entering the liquor circulation, and utilizing a dirt removal device with a filter to clean the liquor for reuse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If liquor is collected in a collecting pan to be reused, then liquor circulation is improved, but floating dirt particles contaminate the liquor making it difficult to reuse
Solution Approach 1:
The invention extracts the harmful floating dirt particles from the liquor by introducing an air stream through a sparger device. The air bubbles rise through the liquor, capturing dirt particles at the liquid-gas interface, and transport them to a separation chamber where they are removed from the circulation system. This allows the bulk of the liquor to remain clean and reusable.
Solution Approach 2:
The invention introduces air as an intermediary substance to mediate between the dirty liquor and the clean liquor. The air stream acts as a carrier that picks up dirt particles from the liquor and transports them to the separation chamber, enabling indirect removal of contaminants without directly processing the entire liquor volume.
2Object-affected harmful factors
If complex purification or filtration is used to remove dirt particles, then liquor cleanliness is improved, but device complexity increases
Solution Approach 1:
The invention replaces complex mechanical filtration systems with a pneumatic separation system. Instead of using filters, screens, or centrifugal separators, the system uses air bubbles to carry dirt particles to the surface for removal. This substitution dramatically simplifies the device structure while maintaining effective dirt particle removal.
Solution Approach 2:
The invention changes the physical state and movement parameters of the liquor by introducing gas-phase air streams. By creating liquid-gas two-phase flow, the system alters the behavior of dirt particles, causing them to attach to air bubbles and rise to the surface, enabling simple gravitational separation without complex mechanical processing.
3Manufacturing precision
If liquor surplus is used to ensure complete wetting of textile, then wetting quality is improved, but more polluted liquor ends up in the collecting pan
Solution Approach 1:
The invention selectively discards only the contaminated portion of the liquor (dirt particles attached to air bubbles) while recovering and reusing the bulk clean liquor. The separation chamber allows the air-dirt mixture to be vented or disposed of, while the cleaned liquor returns to the circulation system, maintaining wetting effectiveness with minimal waste.
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
Enables simple and effective reuse of excess liquor by separating clean liquor from dirt particles, reducing the need for complex purification and allowing continuous liquor circulation.
Implementation Method 1
Air streams are introduced into the liquor 11 in a sparger device 41 located at the bottom of the collecting pan 20 so that air bubbles are generated which carry floating dirt particles 38 to the liquid-gas interface
Implementation Method 2
The separator chamber 45 removes air-dirt mixtures 44 from the circulating air streams
Implementation Method 3
a pump arrangement that conveys liquor from a storage container to the liquor supply device
Implementation Method 4
the collecting pan is connected to an overflow pipe, which has an overflow connected to the reservoir
Data Source
Figure 1~2
AI summary
A pretreatment device (1) for textile goods (2) is specified with a liquor circulating arrangement which has a liquor feed device (8,.9) that conveys the liquor (11) into a work area (5, 7), a collecting trough (20) for recorded liquor and a pump arrangement (10) which promotes liquor from a storage tank (12) to the liquor supply device (8, 9). One would like to be able to continue to use excess liquor in a simple manner. For this purpose, it is provided that the collecting pan (20) is connected to an overflow pipe (24) via a drain (21), which branches off from the collecting pan (20) at a predetermined distance below an upper edge (25) of the collecting pan (20), having an overflow (33) connected to the reservoir (12).