Cold Planer Multi-Inlet Exhaust for Dust and Fume Capture
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Solution Overview
Problem
Existing cold planer exhaust systems, such as those described in U.S. Pre-Grant Publication No. US 2010/0327651, face inefficiencies due to gaps in sealing components over time and are not easily adaptable to different milling machine models, leading to incomplete dust and vapor control during roadway milling.
Innovation Solution
A multi-inlet exhaust system for cold planers, featuring an inlet manifold and inlet passages positioned downstream of the milling drum and above or between conveyors, with a ventilator creating a depression to draw dust and fumes into the system, which includes flexible components to accommodate various machine configurations and reduce the risk of drawing larger fragments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a continuous chamber with multiple sealing components is used to control dust and vapors, then dust and vapor control is improved, but the device complexity increases and reliability decreases due to multiple components that can develop gaps over time
Solution Approach 1:
The exhaust system is segmented into multiple inlet passages positioned at different locations (above the conveyor and at the discharge end) to capture dust and vapors at their sources, eliminating the need for a continuous sealed chamber while maintaining effective dust control through distributed collection points
Solution Approach 2:
The invention extracts the dust and vapor collection function from the conveyor structure itself by adding separate inlet passages that draw contaminants directly at the source, rather than relying on the conveyor structure to provide a sealed enclosure
2Object-affected harmful factors
If a custom-designed exhaust system is created for a specific milling machine model, then dust and vapor control is optimized for that model, but the ease of manufacture and adaptability to other models decreases
Solution Approach 1:
The inlet passages are designed as universal components that can be attached to various conveyor types and milling machine models. The passages are positioned to work with the general geometry of material conveyors, allowing the same exhaust system design to be applied across different machine models without custom fabrication
Solution Approach 2:
The exhaust system incorporates adjustable and reconfigurable inlet passages that can be positioned and oriented to match different conveyor configurations and machine geometries, allowing adaptation to various models through simple repositioning rather than custom manufacturing
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 effectively captures and routes dust and fumes away from the operator and environment, improving working conditions and visibility, while being easily attachable to various cold planer models, including older machines, thus enhancing operational efficiency and adaptability.
Implementation Method 1
The ventilator is able to create a depression that draws dust and polluted air from the continuous chamber, and routes the same to a filtering and discharge system.
Implementation Method 2
bituminous vapors may be produced due to high temperature friction of the cutting tools
Data Source
AI summary
An exhaust system is disclosed for use with a cold planer. The exhaust system may have an inlet manifold located downstream of a milling drum and above a material conveyor. The inlet manifold may be configured to receive dust and fumes generated by the milling drum. The exhaust system may also include at least one inlet passage located at a side of the material conveyor and gravitationally lower than the inlet manifold. The at least one inlet passage may be configured to receive dust and fumes generated by the milling drum. The exhaust system may further include a ventilator in fluid communication with the inlet manifold and the at least one inlet passage. The ventilator may be configured to draw the dust and fumes from the inlet manifold and the at least one inlet passage.