Device and method for feeding a cloth web with a liquor
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Solution Overview
Problem
Existing methods for applying liquor to a web of material result in dilution of the liquor over time due to water being squeezed out during the application process, leading to inconsistent liquor quality.
Innovation Solution
A device with separate collecting troughs for the application and squeezing sections, where the undiluted liquor from the application section is kept distinct from the diluted liquor from the squeezing section, allowing for concentration of the diluted liquor to maintain consistent quality, using a concentration device with a heat source to evaporate water and a liquor treatment device to manage liquor supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the web is squeezed after liquor application, then excess water is removed, but the liquor becomes diluted over time
Solution Approach 1:
The collection system is segmented into separate collection trays: a first collection tray for collecting squeezed-off liquor containing diluted fleet, and a second collection tray for collecting excess undiluted fleet. This segmentation allows differential handling of liquor at different dilution stages, preventing continuous dilution while maintaining consistent fleet concentration in the application section.
Solution Approach 2:
The diluted fleet from the first collection tray is discarded or separately treated, while the undiluted fleet from the second collection tray is recovered and returned to the application section. This selective recovery maintains liquor concentration consistency by preventing diluted liquor from re-entering the application cycle.
2Manufacturing precision
If more liquor is applied to compensate for dilution, then fleet coverage is maintained, but liquor consumption increases
Solution Approach 1:
The system implements feedback by continuously monitoring and collecting liquor at different stages through separate trays, then returning the undiluted portion to the application section. This closed-loop feedback prevents the need for increasing liquor application rates to compensate for dilution, as the concentration is actively maintained through selective recovery and return of undiluted fleet.
3Device complexity
If a single collection tray is used, then the system is simpler, but liquor quality becomes inconsistent
Solution Approach 1:
The collection system is divided into functionally distinct segments: a first collection tray positioned to receive squeezed-off liquor and a second collection tray positioned to receive excess undiluted fleet. This segmentation, while increasing structural complexity, enables differential collection and handling that maintains liquor quality consistency throughout operation.
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 approach ensures a consistent liquor quality by separating and concentrating the diluted liquor, preventing further dilution and allowing for efficient reuse, thus maintaining uniform liquor application over time.
Implementation Method 1
The water can then be removed in the concentration unit, so that solution with the desired concentration is available at the outlet of the concentration unit. Preferably, the concentration device includes a heat source. Concentration is achieved by evaporating the water.
Implementation Method 2
Preferably, the concentration device includes a heat source. Concentration is achieved by evaporating the water.
Data Source
Figure 1
AI summary
A device (1) for beating up a web (2) with a liquor (20, 24) is specified, the device (1) having a moistening section (3), an application section (15), a squeezing section (30) and a liquor collecting arrangement (27, 35). One would like to achieve a constant quality of the fleet order over a longer period of time. For this purpose it is provided that the liquor collecting arrangement (27, 35) has a first collecting trough (27) which is assigned to the application section (15) and a second collecting trough (35) which is assigned to the squeezing section (30).