Multi-layer Filter Plate Device for Diatomite Mixture Filtration
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Solution Overview
Problem
Traditional filtration devices for biological diatomite mixtures suffer from low filtration efficiency due to clogging and inability to selectively remove particles of different sizes, requiring large spaces and leading to uneven water distribution and blockages.
Innovation Solution
A filtering device with multiple layers of inclined curved filter plates and a deflector-depressed plate system, combined with a water distribution and return system, to improve filtration efficiency and prevent clogging by ensuring uniform water distribution and selective particle removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-layer screen or bar is used for filtration, then the structure is simple, but the filtration efficiency is low and requires large floor area
Solution Approach 1:
The patent transitions from a single-layer horizontal filtration structure to a multi-layer vertical stacked structure. Multiple filter plate units are arranged in the vertical direction, forming a three-dimensional filtration system that increases filtration capacity without expanding the horizontal footprint, thus resolving the contradiction between structural simplicity and filtration efficiency.
Solution Approach 2:
The filtration system is divided into multiple independent filter plate units, each containing its own filter plate. This segmentation allows each unit to operate independently and be easily maintained, while collectively providing enhanced filtration capacity. The modular design maintains simplicity in individual components while achieving high overall efficiency through数量 accumulation.
2Productivity
If the area of parallel screen is increased to treat large sewage, then the treatment capacity increases, but the floor area required becomes large
Solution Approach 1:
The patent resolves the conflict between treatment capacity and floor area by utilizing the vertical dimension for stacking multiple filter plate units. This three-dimensional arrangement allows the system to achieve high sewage treatment capacity through increased filtration surface area without requiring proportional increases in horizontal floor space, thus decoupling the relationship between capacity and footprint.
3Device complexity
If traditional filtration device is used, then the structure is simple, but the filter plate becomes blocked by fine particles reducing flow area and filtration efficiency
Solution Approach 1:
By dividing the filtration system into multiple separate filter plate units with independent filter plates, the patent reduces the risk of complete blockage. Even if fine particles accumulate on one filter plate, other units can continue operating, maintaining overall filtration efficiency and reliability without requiring complex anti-blocking mechanisms.
Solution Approach 2:
The patent employs curved surfaces on the filter plates and water guide grooves to facilitate smooth water flow and prevent stagnation. The curved geometry helps water and filtered particles move along the surface rather than accumulating in flat areas, reducing clogging and maintaining filtration efficiency over time.
4Device complexity
If filter plate with same gap is used for particles of different sizes, then the structure is uniform, but the filter plate is prone to blockage
Solution Approach 1:
The patent applies different mesh sizes to different filter plates within the system, creating local variations in filtration characteristics. This allows selective interception of particles with different sizes at different stages, with coarser filtration at earlier stages and finer filtration at later stages, thereby preventing blockage while maintaining overall uniform system structure.
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 device enhances filtration efficiency by preventing clogging, allowing for effective removal of impurities of varying sizes and reducing space requirements, while maintaining efficient water flow and easy residue cleaning.
Implementation Method 1
the particles and impurities in the mixture with the particle size larger than the mesh size of the screen or the bar are retained
Implementation Method 2
By installing a deflector and a depressed plate, the water distribution can be made more uniform, thereby alleviating the accumulation of the diatomite mixture unevenly distributed on the filter plate
Data Source
AI summary
The present invention discloses a filtering device used for removing impurities in a mixture of biological diatomite, which relates to the technical field of sewage treatment. This device includes a plurality of deflectors evenly distributed in multiple layers in the vertical direction. Each deflector includes a shell and a top plate. There is a filter unit symmetrically arranged on the left and right sides of each deflector. The top of the shell is covered with a top plate hinged with the depressed plate. The bottom of the shell is provided with water inlets which communicate with the shunt pipe, and the upper parts of the left and right side walls of the shell are provided with overflow ports. The shell also has a plurality of diversion folding plates located below the overflow ports and vertically staggered and distributed on the left and right side walls. The filter unit includes an inclined water guiding groove and a filtering plate.