Ceramic Filter Element with Rough Joining Interface
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Solution Overview
Problem
Rotary vacuum filter apparatuses have filter elements with short service lives, limiting their efficient use in industrial processes like mineral and mining industries, where filtration of high solids concentration materials is required.
Innovation Solution
A method for manufacturing filter elements using permeable ceramic filter members with a rough joining interface attached to a plastic frame member, enhancing durability and attachment, resulting in longer service life and efficient filtration capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional filter media (filter cloths and coated media) are used in rotary vacuum filter apparatuses, then the filtration process can be performed, but the service life of the filter elements is short
Solution Approach 1:
The invention uses composite ceramic filter members comprising multiple layers with different properties (coarse porous layer for structural support, fine porous layer for filtration, and optionally a transition layer) to create a more durable and reliable filter element that extends service life in rotary vacuum filter apparatuses
2Ease of manufacture
If filter elements are manufactured with conventional methods, then production is simpler, but the attachment between filter member and frame is weak leading to shorter service life
Solution Approach 1:
The invention incorporates a rough joining interface directly into the ceramic filter member during the firing process itself, creating a permanently bonded rough surface that ensures strong attachment to the frame member before the filter element is put into service, eliminating the need for separate attachment preparation steps
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 method produces filter elements with extended service life and improved filtration efficiency, capable of handling high solids concentration materials effectively, reducing maintenance and operational costs in industrial processes.
Implementation Method 1
attaching the filter member to the frame member in such a manner that at least a part of the surface of the filter member formed as a rough joining interface is in contact with the plastic material of the frame member
Implementation Method 2
Filtration is a widely used process whereby a slurry or solid liquid mixture is forced through a media, with the solids retained on the media, as a cake, and the liquid phase passing through
Implementation Method 3
The cake formation in vacuum filtration is based on generating suction within the filtrate channels
Data Source
Figure 1a~1d
Figure 1e
Figure 2~3
AI summary
A method for manufacturing a filter element for a filter apparatus, and a filter element. The filter element comprises at least one permeable ceramic filter member. The method comprises the following steps: - manufacturing a green body of at least one filter member, - the green body comprising a rough joining interface on at least one of its surface, - firing the green body with the rough joining interface into the filter member, - providing a frame member comprising plastic material, and - attaching the filter member to the frame member in such a manner that at least a part of the surface of the filter memberformed as a rough joining interface is in contact with the plastic material of the frame member.