Centrifugal Separator for Development Fatigue Liquid
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for processing development fatigue liquid from photosensitive resin plates are inefficient in separating solid substances of varying specific gravities, leading to increased moisture content and reduced reusable washout liquid, particularly when dealing with flexographic plates and computer-to-plate applications.
Innovation Solution
A centrifugal separation method and apparatus that separates solid substances of different specific gravities by accumulating them on specific parts of a rotating container, allowing for efficient removal and reuse of the development fatigue liquid, which includes a holding member to retain the first solid substance and a removal mechanism for both solid substances, with the option to pass through a separation film for further purification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If centrifugal sedimentation-type centrifugal separation processing having an inside disc is used to separate solid substances, then separation capability is improved, but the concentration of solid substance in the treated washout liquid increases when a large amount of solid substance is mixed in
Solution Approach 1:
The centrifugal separator is divided into multiple functional zones: an inside disc for accumulating solid substances with smaller specific gravity, an outside disc for accumulating solid substances with larger specific gravity, and a liquid discharge path. This segmentation allows simultaneous separation of different solid substances while maintaining liquid flow and preventing clogging.
Solution Approach 2:
The inside disc acts as an intermediary structure that temporarily holds solid substances with smaller specific gravity during centrifugal separation. This intermediary accumulation zone prevents these solids from mixing back into the treated liquid, solving the problem of increased solid substance concentration.
2Measurement precision
If batch-type centrifugal separation is used to separate solid substances, then separation is achieved, but the moisture content increases due to washout liquid mixing in and the amount of reusable washout liquid decreases
Solution Approach 1:
The system performs preliminary centrifugal separation to accumulate solid substances on the inside disc before liquid discharge. By预先 accumulating solids in a designated zone, the system enables subsequent complete liquid removal without carrying away solid substances, thereby reducing moisture content in discharged solids and maximizing reusable washout liquid.
Solution Approach 2:
The centrifugal separator transitions from a static batch process to a dynamic continuous process. The rotating container creates dynamic centrifugal forces that continuously separate solids from liquid, allowing liquid to be discharged through the liquid discharge path while solids remain accumulated on the discs. This dynamic operation reduces moisture content and enables liquid reuse.
3Quantity of substance
If solid substances are removed manually or by scraping during rotation, then solid substance removal is achieved, but washout liquid is also removed and the amount of reusable washout liquid decreases
Solution Approach 1:
The invention extracts the liquid removal function from the solid substance removal process. The liquid discharge path is specifically designed to allow washout liquid to be discharged while leaving solid substances accumulated on the inside and outside discs. This extraction of functions ensures complete liquid removal without carrying away solids, maximizing reusable washout liquid while maintaining effective solid substance removal.
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 reduces the concentration of solid content in the development fatigue liquid, minimizes moisture content in discharged substances, and enhances the reuse of the liquid, thereby decreasing waste and increasing the efficiency of the process.
Implementation Method 1
a first step of centrifugally separating the first solid substance and the second solid substance included in the development fatigue liquid in a rotating container
Implementation Method 2
centrifugal separation processing having an inside disc
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Provided are a processing method and a processing apparatus in which a concentration of a solid content of a development fatigue liquid is low and a moisture content of a discharged solid substance is small. The processing method is a method for removing a first solid substance having a smaller specific gravity than the washout liquid and a second solid substance having a larger specific gravity than the washout liquid from a development fatigue liquid including a solid substance generated by removal of a non-exposed portion of a photosensitive resin plate that has been exposed in an image shape by development using the washout liquid. The method includes a first step of centrifugally separating the first solid substance and the second solid substance included in the development fatigue liquid in a rotating container, accumulating the second solid substance on an inner wall of the container, and accumulating the first solid substance on a holding member provided in the container, a second step of discharging the development fatigue liquid from the container in a state in which the first solid substance accumulated on the holding member is held on the holding member, and a third step of rotating the container, thereby removing the first solid substance held on the holding member from the holding member.