Filtration Cell With Inclined Walls And Covering Flap
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Solution Overview
Problem
Filtration cells in carousels face issues with reduced filtering surface area, incomplete filter cake unloading, and inefficient washing due to tilting and splashing of liquids, leading to maintenance costs and reduced capacity.
Innovation Solution
The filtration cell design features longitudinal walls with a vertical lower part and an obliquely upward upper part, and front walls with vertical lower and obliquely upward upper parts, allowing for increased filtering surface area and easy tilting without collision, while the inwardly sloping walls facilitate cake detachment and washing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If longitudinal walls extend vertically upwards to maximize filtering surface area, then filtering surface area is improved, but tilting becomes difficult and filter cake unloading is incomplete
Solution Approach 1:
The longitudinal wall is divided into two distinct segments: a lower vertical part that provides filtering surface area and an upper inclined part that facilitates tilting and cake unloading. This segmentation allows each part to fulfill its specific function optimally without compromising the other.
Solution Approach 2:
Different parts of the wall have different geometries suited to their local functions: the lower part is vertical to maximize filtering surface, while the upper part is inclined to facilitate cake detachment during tilting. This local differentiation of wall geometry resolves the contradiction between filtering area and tilting ease.
2Productivity
If cells are tilted for cake evacuation, then cake unloading is improved, but liquid splashing occurs between neighboring cells causing damage and maintenance costs
Solution Approach 1:
The covering flap acts as an intermediary element between neighboring cells. It deflects splashing liquids away from adjacent cells during tilting, protecting them from damage while allowing the tilting operation to proceed for efficient cake evacuation.
Solution Approach 2:
The cell structure combines multiple functional elements (vertical walls for filtration, inclined walls for tilting, covering flaps for protection) into a composite system that simultaneously achieves efficient cake evacuation while preventing liquid damage to neighboring cells.
3Object-affected harmful factors
If covering flaps are added to protect neighboring cells from splashing, then liquid damage is reduced, but filtering surface area is reduced
Solution Approach 1:
The wall structure is segmented into lower vertical parts for filtration and upper inclined parts with covering flaps for protection. This segmentation ensures that the covering flaps do not significantly reduce the filtering surface area while still providing effective protection against liquid splashing.
4Ease of operation
If longitudinal walls are inclined inwards to facilitate tilting, then tilting ease is improved, but filtering surface area is reduced
Solution Approach 1:
The wall is segmented into a lower vertical part that maintains filtering surface area and an upper inclined part that facilitates tilting. This segmentation allows the cell to achieve easy tilting without sacrificing significant filtering surface area.
Solution Approach 2:
The wall geometry is locally optimized: the lower portion is vertical to maximize filtering surface, while the upper portion is inclined to facilitate tilting operations. This local differentiation resolves the contradiction between filtering area and tilting ease.
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 design enhances the filtering surface area by 5-10% compared to cells with straight walls, enables efficient cake unloading, and prevents liquid splashing between cells, reducing maintenance costs and improving washing efficiency.
Implementation Method 1
a filter bed (7) supported in the tank (1) and dividing the latter into an upper compartment (10) for receiving a material to be filtered and into a lower compartment (11) for receiving a filtrate
Data Source
Figure 1~2
Figure 3~5
Figure 6~7c
AI summary
The invention relates to a filtration cell that comprises a tank with a bottom wall (2) and four side walls extending upwards from the bottom wall as well as an upward opening, the four side walls including two opposite longitudinal walls (3, 5) as well as a front facing wall (4) and a rear facing wall connecting them, a filtration bed (7) supported in the tank, an outlet opening for discharging the filtrate, and a covering flap (24) protruding outwards from the top of one of said longitudinal walls, the longitudinal wall (5) opposed to that fitted with the flap including a lower portion (25) extending upwards from the bottom wall (2) and an upper portion (26) extending slantedly upwards and inside the tank from the top of said lower portion (25), and/or the front facing wall (4) comprises a bottom portion (27) extending upwards from the bottom wall (2) and a top portion (28) extending slantedly upwards and inside the tank from the top of said bottom portion (27).