Horizontal Abatement Filter for Leather Spray Chambers
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Solution Overview
Problem
Existing abatement filters for removing particulate matter from leather treatment chambers are inefficient for particles smaller than 10 µm, require frequent replacement, and disrupt production lines during filter changes, while also consuming excessive water and occupying valuable space.
Innovation Solution
The proposed abatement filter integrates a liquid filter with a dry filter and a water recovery system, allowing continuous monitoring and easy replacement of the filtering element without interrupting production. It features a compact design with reduced horizontal dimensions, automated operation, and efficient water usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If water filters are used to precipitate liquid and solid suspension, then filtering effectiveness is improved, but water consumption increases and requires further treatment before disposal
Solution Approach 1:
The patent implements a water recovery system that collects, treats, and recycles water from the filtering process. The system separates clean water from contaminated water, treating and returning it to the spray chambers for reuse, thereby reducing water consumption and disposal requirements while maintaining filtering effectiveness
Solution Approach 2:
The patent employs hydraulic principles through the water recovery system that utilizes pumps and pressure differential to circulate water through the filtering layers and collection channels, enabling continuous water recovery and reuse without requiring additional treatment facilities
2Reliability
If dry filters are used to deposit suspension on channel surfaces, then filtering is achieved, but the filters easily saturate and need periodic replacement interrupting production
Solution Approach 1:
The patent implements a continuous filtering system where the filtering element remains in operation throughout the production process. The design allows the filter to continuously deposit particulate matter on the filtering surface without requiring shutdowns or replacements, maintaining uninterrupted production flow
Solution Approach 2:
The patent positions the filtering element horizontally rather than vertically, allowing it to be integrated into the existing production line layout. This dimensional change enables the filter to operate continuously without requiring production line interruption for maintenance or replacement
3Reliability
If vertical abatement filters are positioned above ground, then filtering is effective, but replacement operations become complex and require production interruption
Solution Approach 1:
The patent inverts the conventional vertical positioning of abatement filters by implementing a horizontal filtering element positioned at ground level. This inversion makes the filter easily accessible for maintenance and replacement operations while maintaining effective filtering performance through the horizontal flow path
4Reliability
If filter elements are positioned in elevated positions, then filtering is effective, but access for replacement becomes difficult and complex
Solution Approach 1:
The patent positions the filtering element at ground level, creating an equipotential position that is easily accessible for maintenance operations. This eliminates the need for elevated positioning and complex access mechanisms while maintaining filtering efficiency through the horizontal flow path design
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
The filter effectively reduces particulate matter in the air to below 3 mg/m³·h, efficiently filters particles smaller than 10 µm, and minimizes the frequency of filter replacements, ensuring continuous production with reduced water consumption and space requirements.
Implementation Method 1
The water filters provide for the positioning of a plurality of nozzles configured to spray water or other liquids on the aerosol emerging from the spray chamber, in order to precipitate the liquid and/or solid suspension present in the aerosol
Implementation Method 2
dry filters, also known as labyrinth filters, are known, which provide for the aerosol to pass through a plurality of small-sized channels obtained in a filtering layer, so that the suspension is deposited on the surface of the channels themselves
Data Source
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AI summary
Abatement filter (1) to filter the aerosol (102) produced in a leather treatment and/or finishing chamber, and in particular in a leather spray chamber, said abatement filter (1) comprising a container (2), inside which the filtration of said aerosol (102) takes place, said container (2) containing: - at least one suction device (3,10) configured to suck the aerosol (102) generated in said leather treatment and/or finishing chamber, - at least one liquid filter (5) configured to spray at least one water-based liquid on said aerosol (102) in order to at least partially precipitate the particulate present in suspension in the aerosol itself, - a dry filtering apparatus (34) arranged downstream of said liquid filter (5) according to the direction of flow of said aerosol (102), comprising at least one substantially laminar filter element (36), characterized in that said at least one element filter (36) is movable, in a mechanized way, between a first position suitable for filtering said aerosol (102) and a second position not suitable for filtering said aerosol (102).