Oil-Based Dust Suppression with Hydrophobizing Agents
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Solution Overview
Problem
Existing dust control methods, such as using oil as a dust suppressant, are transient and environmentally harmful due to wash-off by water, leading to reduced efficacy and potential contamination of water streams.
Innovation Solution
Combining oil with hydrophobizing agents like amine functionalized polysiloxanes, which bind to dust and substrates, creating a long-lasting dust suppression effect by enhancing the oil's affinity for dust particles and reducing oil runoff.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If oil is applied as a dust suppressant, then dust suppression efficacy is improved, but the oil is readily washed off by water or rain, providing only transient control
Solution Approach 1:
The patent combines oil with hydrophobizing agents to create a composite dust suppression composition. The hydrophobizing agent modifies the surface properties of the oil-dust mixture, creating a composite system that resists water washing while maintaining dust suppression efficacy. This composite approach allows the oil to remain bound to dust particles longer, extending the duration of control.
Solution Approach 2:
The patent changes the surface energy and hydrophobicity parameters of the oil by adding hydrophobizing agents. This parameter modification increases the oil's resistance to water washing and improves its binding to dust particles, thereby extending the duration of dust control while maintaining suppression efficacy.
2Reliability
If oil is applied to suppress dust, then dust control is achieved, but oil run-off contaminates nearby water streams
Solution Approach 1:
The hydrophobizing agent acts as an intermediary between the oil and the environment. It modifies the oil's interaction with water and substrate, creating a more stable bonded state that prevents oil run-off and contamination of water streams while maintaining dust control effectiveness.
Solution Approach 2:
By changing the hydrophobicity and surface tension parameters of the oil through hydrophobizing agent addition, the patent reduces the oil's tendency to run off and contaminate water streams, while preserving its dust suppression capability.
3Ease of manufacture
If simple water spraying is used for dust control, then implementation is simple, but dust suppression is transient and less effective
Solution Approach 1:
The patent creates a composite composition combining oil and hydrophobizing agents that maintains the simplicity of spray application while significantly improving dust suppression effectiveness. The composite formulation provides more reliable and longer-lasting dust control compared to water alone.
Solution Approach 2:
The patent modifies the physical and chemical parameters of the dust suppression medium by adding hydrophobizing agents to oil, creating a formulation that is equally easy to apply as water but provides superior and more durable dust suppression effectiveness.
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 use of hydrophobizing agents with oil significantly improves dust suppression durability and reduces environmental impact by minimizing oil loss, providing a more effective and sustainable solution for controlling fugitive dust.
Implementation Method 1
hydrophobizing agents like amine functionalized polysiloxanes, which bind to dust and substrates
Implementation Method 2
Combining oil with hydrophobizing agents like amine functionalized polysiloxanes, which bind to dust and substrates, creating a long-lasting dust suppression effect
Data Source
AI summary
Methods and compositions for suppressing fugitive dust are provided herein. To suppress fugitive dust, particulate materials, dust and or substrates can be treated with a mixture having a hydrophobizing agent and an oil. The hydrophobizing agent can be an organo- or halosilane, a tallow alkylamine, an amine-functionalized polysiloxane, or an amine-functionalized hydrophobic polymer.