Rotatable Spray Bar for High-Speed Rail Dust Suppression

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Solution Overview

Problem

Existing methods for applying binding agents to prevent dust loss during coal transportation in railroad cars are inefficient due to coal settlement and movement, leading to uneven application and potential wastage, and there is a need for precise and high-volume dispensing systems that avoid unintended fluid application on conveyances or the environment.

Innovation Solution

A high-speed dust suppressing spray system comprising a rotatable spray bar with nozzles and a trough that allows for precise control over fluid direction, enabling high-volume dispensing directly onto cargo while recapturing excess fluid for reuse, using a frame and actuator to switch between dispensing and diversion orientations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If binding topper agent is applied at mine site only, then initial dust suppression is achieved, but effectiveness is reduced due to coal settlement and movement during transit

Engineering Contradiction:

Improvedust suppression effectivenessVSAvoidtransit time for reapplication

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system applies binding topper agent preliminarily at the mine site, then plans to reapply at a second location between mine site and final destination to maintain effectiveness throughout transit

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The invention ensures continuous dust suppression by applying binding agent at multiple locations along the transit route, maintaining protective coverage despite coal settlement and movement

Inventive Principle:

Principle #20Continuity of useful action

2Productivity

If large volumes of binding agent are dispensed quickly, then high productivity is achieved, but precision and accuracy of dispensing operations deteriorate

Engineering Contradiction:

Improvedispensing speedVSAvoiddispensing precision

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The spray bar is divided into multiple nozzle sections that can be independently controlled, allowing the system to dispense large volumes while maintaining precision through segmented control of fluid application points

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The spray bar is made rotatable between dispensing and diversion orientations, enabling dynamic control of fluid direction to achieve both high-volume dispensing and precise application control during train transit

Inventive Principle:

Principle #15Dynamics

3Reliability

If spray system is positioned to dispense fluid onto cargo, then dust suppression is achieved, but unintended fluid application on conveyance or environment may occur

Engineering Contradiction:

Improvedust suppression effectivenessVSAvoidunintended fluid application

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The spray bar rotates between dispensing orientation (pointing at cargo) and diversion orientation (pointing away from cargo), allowing precise control of fluid direction to apply binding agent only where needed and divert excess fluid safely

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

A trough serves as an intermediary component to capture and redirect excess or diverted fluid, preventing unintended application on the train or environment while maintaining effective dust suppression

Inventive Principle:

Principle #24Intermediary (Mediator)

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

Enables efficient and precise application of binding agents to large volumes of cargo, minimizing waste and ensuring effective dust suppression during transportation, even at high speeds, by directing fluid flow accurately onto the cargo and recapturing excess fluid for reuse.

Implementation Method 1

The nozzle may be adapted to direct an output of the associated fluid from the pipe in a diversion direction or in a dispensing direction

Methodology Applied

Scientific EffectFluid flow direction control:

Implementation Method 2

The trough may comprise a trough inlet positioned along the diversion direction and adapted to accept associated fluid when the spray bar is in the dispensing orientation, and a trough outlet in fluid communication with the trough inlet and a fluid supply input

Methodology Applied

Scientific EffectFluid recapture and reuse:

Data Source

PatentUS9457371B2High speed rail car topper application system

Publication Date: 2016.10.04 MCRL

AI summary

Provided is a spray system comprising: a frame, spray bar, and trough. The spray bar may be rotatable between a dispensing orientation and a diversion orientation and may comprise a pipe and a nozzle. The pipe may define a pipe interior, a pipe elongation axis, be operationally rotatable about the pipe elongation axis, be in fluid communication with an output of a fluid supply, adapted to accept an associated fluid from the fluid supply, and adapted to convey the associated fluid. The nozzle may be adapted to direct an output of the associated fluid from the pipe in a diversion direction or in a dispensing direction. The trough may comprise a trough inlet positioned along the diversion direction and adapted to accept associated fluid when the spray bar is in the dispensing orientation, and a trough outlet in fluid communication with the trough inlet and a fluid supply input.