Adjustable Moving Bed Filter for High Dust Gas
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Solution Overview
Problem
Existing systems for recycling waste heat and purifying high temperature coal gas and flue gas in high energy consumption and emission industries face challenges such as filtering material blockage, regeneration difficulties, and low efficiency due to complex composition, high dust content, and corrosiveness, which necessitate an improved purification method.
Innovation Solution
A continuous filtering system with a moving bed particle filtering layer of adjustable thickness, featuring a feeding channel, inclined filtering channels, and an aggregate channel, where the thickness of the filtering layer can be adjusted using a movable baffle to optimize filtering efficiency and bed resistance, allowing for cross-flow and adverse-flow filtration, and incorporating a charging bell and discharge valve for efficient particle management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filtering layer thickness is increased to improve purification effect, then the filtering efficiency is improved, but the filtering pressure increases and operation stability deteriorates
Solution Approach 1:
The patent applies the dynamics principle by making the filtering layer thickness adjustable rather than fixed. The thickness can be dynamically changed by adding or removing particle layers, allowing the system to adapt to different operating conditions and optimize between purification efficiency and pressure drop.
Solution Approach 2:
The filtering layer is segmented into multiple adjustable particle layers. Each layer can be independently controlled in thickness, allowing the total filtering capacity to be optimized while maintaining reasonable pressure characteristics through distributed filtration stages.
2Reliability
If the filtering layer thickness is increased to improve purification effect, then the filtering efficiency is improved, but the system complexity increases
Solution Approach 1:
The system employs self-service principles through gravity-based particle distribution and automatic layer formation. The particles naturally settle and distribute themselves into filtering layers without requiring complex mechanical assembly mechanisms, reducing system complexity while maintaining adjustable thickness capability.
3Adaptability or versatility
If the particle layer thickness is adjusted to optimize filtering performance, then the adaptability is improved, but the operation complexity increases
Solution Approach 1:
The system changes the parameter of filtering layer thickness to adapt to different purification requirements. By providing multiple discrete thickness options, the system achieves adaptability while keeping operation simple through straightforward layer addition or removal rather than continuous adjustment mechanisms.
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 system achieves high filtering efficiency, low filtering pressure, and stable continuous operation across a wide temperature range, with adjustable particle layer thickness ensuring optimal performance and resource utilization, while preventing filtering cake formation and maintaining system stability.
Implementation Method 1
a continuous filtering system with a moving bed particle filtering layer
Implementation Method 2
adjustable thickness of filtering layer... low filtering pressure
Data Source
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AI summary
A continuous filtering system for a moving bed particle layer with adjustable thickness of filter layer is provided, which includes: a feeding channel (1), a first inclined filtering channel (2), a longitudinal filtering channel (3), a second inclined filtering channel (4) and an aggregate channel (5); wherein the bottom of the feeding channel is connected to the top of the first inclined filtering channel; the bottom of the first inclined filtering channel is connected to the top of the longitudinal filtering channel; the bottom of the longitudinal filtering channel is connected to the top of the second inclined filtering channel, and the bottom of the second inclined filtering channel is connected to the top of the aggregate channel; an inlet (6) for filtering particles is arranged at the top of the feeding channel, an adjustment baffle (7) for particle thickness is arranged at the bottom of one side of the feeding channel near the longitudinal filtering channel, a first filtering mouth (8) for flue gas and a second filtering mouth (9) for flue gas are correspondingly arranged at the sidewall of the first inclined filtering channel and the sidewall of the second inclined filtering channel, a discharge channel (10) is arranged at the bottom of the aggregate channel, and a discharge valve (11) is arranged in the discharge channel.