Dust Removal Filler Structure for Fine Dust Aggregation
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Solution Overview
Problem
Existing dust removal technologies are inefficient in removing fine dust particles, particularly those smaller than 2 µm, leading to device blockage, increased maintenance costs, and reduced operational efficiency in chemical processes.
Innovation Solution
A gas purification device with a dust removal filler and fouling collection pan that utilizes the adhesion and aggregation properties of dust to create a flow field conducive to dust adhesion and aggregation, using obliquely prismatic and conical baffles to generate vortices and accumulate dust, followed by gravitational separation and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If mechanical dust removal technology is used, then device structure is simple, but purification efficiency for fine particles less than 2 µm is very low
Solution Approach 1:
The invention combines multiple dust removal mechanisms into a composite filler structure that integrates inertial separation, adhesion, and aggregation effects. The filler consists of core particles with specific surface properties that promote dust adhesion and aggregation, creating a multi-functional dust removal system that maintains structural simplicity while achieving high purification efficiency for fine particles
Solution Approach 2:
The filler employs porous core particles with controlled pore structures that increase surface area and provide adhesion sites for dust particles. The porous structure allows gas to pass through while trapping fine dust particles through adhesion forces acting on the extensive internal surface area of the pores
2Productivity
If wet dust removal technology is used, then purification efficiency is improved, but device volume increases and investment cost increases
Solution Approach 1:
The invention replaces the mechanical spray and water film systems of wet dust removal with a chemical/physical adhesion-based filler system. Dust particles are removed through adhesion forces acting on the filler surface rather than through mechanical impaction with water droplets or films, eliminating the need for large water delivery and collection infrastructure
3Productivity
If bag dust removal technology is used, then purification efficiency for fine dust is high, but pressure drop increases and dynamic load requirements increase
Solution Approach 1:
The invention extracts the dust removal function from the complex bag filter system and implements it through a simple packed bed filler. By removing the fabric bags and their associated housing, pulleys, and cleaning mechanisms, the system achieves high purification efficiency through adhesion-based dust capture while minimizing pressure drop and mechanical complexity
4Productivity
If electric dust removal technology is used, then dust removal rate is high, but operating cost increases and investment cost increases
Solution Approach 1:
The invention uses inexpensive, replaceable filler particles instead of expensive electrical components and power supply systems. The filler consists of simple porous particles with adhesion properties that can be easily manufactured and replaced, eliminating the high operating costs associated with electrical power consumption while maintaining effective dust removal rates
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 achieves efficient separation and storage of fine dust with minimal pressure drop, suitable for high-temperature environments, reducing maintenance and increasing operational stability.
Implementation Method 1
utilizes the adhesion and aggregation properties of dust to create a flow field conducive to dust adhesion and aggregation, using obliquely prismatic and conical baffles to generate vortices
Implementation Method 2
The adhesion property of dust refers to the attractive force generated between different molecules, such as the adhesion between powder particles and the wall
Implementation Method 3
the aggregation property of dust refers to the attractive force generated between the same molecules, for example, adhesion occurs between powder particles, to form aggregates
Implementation Method 4
The adhesion and aggregation property of dust are mainly caused by molecular force (Van Der Waals force) and electrostatic force (Coulomb force) in the dry state
Implementation Method 5
The adhesion and aggregation property of dust are mainly caused by molecular force (Van Der Waals force) and electrostatic force (Coulomb force) in the dry state
Implementation Method 6
followed by gravitational separation and storage
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The invention relates to a dust removal filler (6), a fouling collection pan (3) and a gas purification device. The dust removal filler (6) comprises: a plurality of rows of channels (61), each channel (61) extending obliquely with respect to a vertical direction to form a windward surface (611) and a leeward surface (612); and a waveform plate (62), the peak portion of the waveform plate (62) is attached to the leeward surface (612) of the obliquely prismatic channel (61), during operation, dust adheres to a concave portion of a lower surface of the waveform plate (62) and accumulates to form dust aggregates, when the gravity of the dust aggregates is greater than the adhesion force, the dust aggregates fall onto the windward surface (611) of the channels (61) and slide off from the windward surface (611) of the channels (61).