Superimposed Press Filter With Secondary Filtration and Sealed Discharge
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Solution Overview
Problem
Existing press filters have limited filtering area, leading to poor filtering efficiency and waste of material resources, necessitating an improvement in filtering effect without resource wastage.
Innovation Solution
A superimposed combined press filter design that incorporates multiple layers of laminates with sintered meshes and S-shaped scraper stirrers, connected via sealing devices, to increase filtering area and efficiency, with secondary filtration by a six-in-one press filter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a traditional single-layer press filter is used, then the device structure is simple, but the filtering area is limited and filtering efficiency is poor
Solution Approach 1:
The filter plate is divided into multiple layers (first filter plate, second filter plate, etc.) stacked vertically, with each layer providing additional filtering area. The segmentation of the filtering surface into multiple levels resolves the contradiction by increasing total filtering area while maintaining a compact vertical structure.
Solution Approach 2:
The invention transitions from a single-plane filtering structure to a multi-layer vertical stacking structure, utilizing the vertical dimension to expand filtering area. This dimensional change allows the system to achieve large filtering area without proportionally increasing the horizontal footprint or overall device complexity.
2Productivity
If the filtering area is increased by using multiple layers, then the filtering efficiency is improved, but the device complexity increases
Solution Approach 1:
Multiple filter plates are merged into a single integrated filtering system with shared support structures, sealing mechanisms, and discharge systems. The first filter plate, second filter plate, and subsequent layers are combined through common structural elements that reduce overall complexity compared to separate filtering units.
Solution Approach 2:
The multi-layer structure serves multiple functions simultaneously: each layer provides filtering area, the stacked configuration enables gravity-assisted solid discharge, and the integrated design allows unified sealing and pressure distribution. This multi-functionality justifies the increased structural complexity by delivering compounded benefits.
3Area of stationary object
If a superimposed multi-layer structure is used, then the filtering area is greatly increased, but the sealing requirements at joints become more complex
Solution Approach 1:
Sealing pieces are introduced as intermediary elements at the joints between filter plates and at the solid discharge port connections. These dedicated sealing components mediate the connection between layers, ensuring reliable sealing without requiring complex integrated seal designs throughout the entire multi-layer structure.
Solution Approach 2:
Sealing is applied locally at critical junction points (between filter plates, at discharge ports) rather than requiring universal sealing throughout the entire structure. This localized sealing approach maintains reliability at critical interfaces while avoiding unnecessary complexity in non-critical areas.
4Quantity of substance
If multiple filter layers are stacked, then the filtering capacity is improved, but the solid discharge mechanism becomes more complex
Solution Approach 1:
The solid discharge mechanism utilizes gravity and the natural flow of solids through the stacked layers, eliminating the need for complex mechanical discharge systems. The first solid discharge port and second solid discharge port are positioned to allow solids to discharge automatically from each layer without requiring additional actuators or mechanisms for each layer.
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 design significantly enhances filtering efficiency, reduces environmental pollution, and minimizes resource waste by increasing filtering area, allowing for quick filtration and short production cycles.
Implementation Method 1
two layers of filter meshes are configured in each layer cavity
Implementation Method 2
three S-shaped scraper type stirrers are mounted on the first stirring shaft
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
The present invention discloses a superimposed combined press filter, comprising a superimposed filter and a six-in-one press filter. A solid discharge port of the superimposed filter is connected with a feed port of the six-in-one press filter; a sealing device is arranged at a joint between the solid discharge port and the feed port; the superimposed filter is used for performing primary filtration on materials to be filter-pressed and then conveying the obtained solids to the six-in-one press filter; and the six-in-one press filter is used for performing secondary filtration on the solids. The present invention greatly increases the filtering area by superimposing multiple layers in a superimposed combination manner, thereby greatly improving the filtering effect, easily filtering massive materials, improving the cleaning effect to the greatest extent, and realizing no residue between batches.