Gravel Circulation Dry Electrostatic Precipitator for Asphalt Emissions
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Solution Overview
Problem
Current methods for removing air pollutants, such as formaldehyde, ammonia, hydrogen sulfide, mercaptan, amines, sulfur dioxide, and nitrogen oxides, from ascon production processes are inefficient, leading to environmental pollution and high operational costs, with complex apparatuses and suboptimal discharge conditions.
Innovation Solution
A gravel circulation dry electrostatic precipitator that uses a corona reaction with titanium dioxide as a deodorizing catalyst, generating ions, radicals, and ozone to decompose and remove pollutants, optimized through discharge tip design and spacing for enhanced dust collection efficiency and power efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional dust collection equipment is used, then dust removal is achieved, but operational costs are high and maintenance is complex
Solution Approach 1:
The patent combines multiple functions (dust collection, harmful gas removal, and deodorization) into a single integrated electrostatic precipitator system. The corona discharge mechanism simultaneously handles multiple pollutants that would otherwise require separate treatment devices, thereby reducing overall system complexity while maintaining effective pollution control.
Solution Approach 2:
The electrostatic precipitator is designed to perform multiple functions: collecting dust particles, removing harmful gases through corona discharge, and deodorizing emissions. This multi-functional approach eliminates the need for multiple separate equipment units, reducing both device complexity and maintenance requirements while achieving comprehensive pollution control.
2Object-affected harmful factors
If conventional dust collection equipment is used, then dust removal is achieved, but operational costs are high
Solution Approach 1:
The patent replaces complex mechanical dust collection systems with an electrostatic field-based corona discharge mechanism. This substitution eliminates the need for heavy mechanical components, moving parts, and complex filtration systems, thereby reducing both initial investment costs and ongoing operational expenses while maintaining effective dust and gas removal capabilities.
3Productivity
If discharge tips are not optimized, then apparatus is simpler, but dust collection efficiency and power efficiency are reduced
Solution Approach 1:
The patent implements optimized discharge tip designs with specific geometric configurations and spacing arrangements tailored for maximum electrostatic field effectiveness. Each discharge tip is locally optimized with precise dimensions and positioning to enhance dust collection efficiency and power utilization, demonstrating that targeted local optimizations can significantly improve overall system performance without requiring complete system redesign.
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
Effectively reduces microscopic dust and harmful gases, minimizing environmental pollution by rapidly removing sulfur dioxide, nitrogen oxide, and dioxin, while reducing spark occurrence and simplifying maintenance with easily cleanable components.
Implementation Method 1
a corona reaction part (22) provided at a center of an upper inner circumferential portion of the first dust collection and purification unit; wherein the corona reaction part (22) includes: a dust collector (220) in which a plurality of dust collecting pipes (221) are accommodated, and a discharge unit (260) including a discharge rod (230) accommodated inside each of the dust collecting pipes (221) of the dust collector (220), discharge tips (240) coupled to a front end of the discharge rod (230) so as to be spaced a constant distance from each other, and a high-voltage applying device (250) configured to apply a voltage to an end of the discharge rod (230)
Implementation Method 2
a gravel accommodation part (20) including an inlet (200) on one side thereof and a blower fan (201) on the other side, and having an inner circumferential wall surface on which gravel is accommodated
Data Source
AI summary
A gravel circulation dry electrostatic precipitator includes: a drying unit (S1) which conveys and uniformly mixes, heats, and dries recycled aggregates, containing a large amount of moisture, among the materials of asphalt-concrete; a first dust collection and purification unit (S2); a second dust collection and purification unit (S3) in which fine dust, remaining after the odor-inducing substances, harmful gases, and dust that have passed through the first dust collection and purification unit (S2) are filtered by a filter, is discharged to the outside by a screw(S) provided at the lower end of a hopper, and a discharge unit (S4) which uses a turbo fan (F) to forcibly suction fresh air that has passed through the second dust collection and purification unit (S3), thereby discharging same via an outlet (400).