Movable Exhaust Filtering Net With Alkaline Washing for Fine Smoke
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Solution Overview
Problem
Existing exhaust gas filtering systems are prone to damage from high chimney temperatures and fail to effectively capture fine particulates and odors due to insufficient filtration and cleaning mechanisms.
Innovation Solution
A filtering apparatus with a two-stage conveyor system and a movable filtering net that performs both filtration and cleaning processes, utilizing a composite fabric or HEPA filter, and an alkaline washing system to capture pollutants and form a water film for enhanced filtration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a water spray system is installed on the chimney to absorb dirt, then the damage caused by black smoke to the environment is reduced, but the water spray system is easily damaged due to the high temperature of the chimney
Solution Approach 1:
The invention extracts the filtration function from the high-temperature chimney environment and relocates it to a separate, protected filtration system. The filtering net is positioned in a dedicated filtration chamber away from the chimney, allowing filtration to occur in a lower-temperature environment while the chimney maintains its high-temperature combustion function without damaging water spray equipment
Solution Approach 2:
The invention introduces an intermediary filtration system consisting of a filtering net and filtration chamber that mediates between the high-temperature exhaust gas and the cleaning mechanisms. The exhaust gas passes through the filtering net which captures particles, and the filtered gas is then discharged, separating the filtration function from direct exposure to high temperatures
2Device complexity
If a simple filtration system is used, then the device complexity is reduced, but the ability to capture fine particulates and odors is insufficient
Solution Approach 1:
The invention segments the filtration process into multiple distinct stages: a first filtering net for initial particle capture, a washing section with alkaline solution for chemical neutralization and odor removal, and a second filtering net for final filtration. This multi-stage segmented approach comprehensively addresses fine particulates and odors while maintaining systematic organization
Solution Approach 2:
The invention employs composite filtration mechanisms combining physical filtration (filtering nets), chemical treatment (alkaline washing solution for odor neutralization), and mechanical cleaning (brushes and water spray). This composite approach integrates multiple material and method types to simultaneously capture particles and neutralize odors effectively
3Device complexity
If the filtering net is stationary, then the device complexity is reduced, but the filtration efficiency and cleaning capability are insufficient
Solution Approach 1:
The invention transforms the stationary filtering net into a dynamic, movable component that travels through the filtration chamber on a conveyor belt. The filtering net moves continuously through different zones (filtration zone, washing zone, cleaning zone) enabling it to perform both filtration and self-cleaning functions, significantly improving filtration efficiency and preventing clogging
Solution Approach 2:
The moving filtering net implements self-service through an integrated cleaning mechanism where the filtering net is automatically washed and cleaned by brushes and water spray during its movement through the second section of the chamber, eliminating the need for separate manual cleaning operations and maintaining continuous filtration efficiency
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 apparatus achieves effective capture of fine particles and odors, reducing environmental pollution by forming an isolating layer to trap pollutants and enhance filtration efficiency through two-stage purification.
Implementation Method 1
the filtering net performs a filtering process... to capture fine particles and odors... forming an isolating layer to trap pollutants
Implementation Method 2
an alkaline washing system to capture pollutants and form a water film for enhanced filtration
Data Source
AI summary
A filtering apparatus includes an exhaust pipe, multiple air exhaust devices, a conveyor, a filtering net, a tank washing device, and a cleaning device. The exhaust pipe includes multiple air outlets. The air exhaust devices align with the air outlets respectively. The conveyor includes a first delivery circuit extending through the air outlets and a second delivery circuit connecting the first delivery circuit. The filtering net extends through the first delivery circuit and the second delivery circuit. The tank washing device is arranged in the second delivery circuit and includes a liquid tank. The cleaning device is mounted in the tank washing device and includes multiple rolling shafts each provided with multiple brushes. The filtering net is moved between the first delivery circuit and the second delivery circuit to perform two-stage purifying circulation to drain a purified gas from the air exhaust devices.