Electrostatic Precipitator for Ground Milling Machine Dust Control
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Solution Overview
Problem
Existing ground milling machines, particularly road milling machines, generate significant dust during operation, posing health and safety risks to operators and bystanders, and existing dust control methods are inadequate in effectively reducing dust emissions.
Innovation Solution
Integration of an electrostatic precipitator in the ground milling machine to capture dust particles from the air, specifically arranged near dust generation points like the milling drum box and transport conveyor belts, using a pump device to guide dust-laden air for efficient precipitation, and incorporating a cleaning device for maintenance and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an electrostatic precipitator is integrated into the ground milling machine, then dust particle capture efficiency is improved, but device complexity increases
Solution Approach 1:
The electrostatic precipitator is integrated into the existing housing structure of the ground milling machine, with charging electrodes and collecting electrodes positioned within the confined space between the conveyor belt and housing walls. This nesting approach allows the precipitator to occupy unused internal volume without significantly increasing the machine's external dimensions or overall structural complexity.
Solution Approach 2:
The housing structure of the ground milling machine serves multiple functions: it encloses the conveyor belt for material transport, provides structural support, and simultaneously acts as one of the collecting electrodes for the electrostatic precipitator. This multi-functionality reduces the need for additional separate components and simplifies the overall device architecture.
2Object-affected harmful factors
If the electrostatic precipitator is positioned close to dust generation points, then dust capture efficiency is improved, but space requirements and design difficulty increase
Solution Approach 1:
The electrostatic precipitator is specifically positioned in the region where dust-laden air rises from the milling drum and conveyor belt, creating a localized treatment zone exactly where dust concentration is highest. The charging electrodes are arranged to face the upward airflow path, ensuring that dust particles are charged and collected at the most effective location within the housing structure.
3Ease of operation
If the machine design is made more compact, then mobility and ease of operation are improved, but space for dust control devices is reduced
Solution Approach 1:
The electrostatic precipitator components are nested within the existing housing volume, utilizing the space between the conveyor belt and housing walls. This allows the precipitator to be accommodated without increasing the machine's external dimensions, thereby maintaining compactness and mobility while providing effective dust control functionality.
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
Significantly reduces particulate matter exposure for operators and bystanders by effectively capturing fine dust particles, improving the compactness and reliability of the machine design while maintaining efficient dust reduction.
Implementation Method 1
an electrostatic precipitator (12), by means of which dust (6) which is generated during the milling operation and/or during the transport of milled material can be removed from the dust-laden air
Implementation Method 2
using a pump device to guide dust-laden air for efficient precipitation
Data Source
AI summary
The present invention relates to a ground milling machine, in particular a road milling machine, for removing ground material, comprising a machine frame having a chassis, a milling drum supported on a machine frame, and a transport device having at least one conveyor belt, which is configured for conveying removed ground material in a conveying direction away from the milling drum to a discharge point, as well as to a method for operating a ground milling machine. One aspect of the present invention is to provide an electrostatic precipitator, which reduces the dust pollution.