Hemp Insulation Needle Injection for Fire Retardant Penetration
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Solution Overview
Problem
Existing methods for applying fire retardants to hemp insulation are inefficient and ineffective, as they do not adequately introduce the retardant into the fibers of the hemp batting, leading to suboptimal fire-resistant properties.
Innovation Solution
A device with multiple injection needles is used to deliver a liquid fire retardant under pressure into and onto the hemp insulation batting, ensuring the retardant penetrates the fibers, improving the fire-resistant properties and reducing drying time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the melt blending method is used to apply fire retardant to hemp, then the fire-resistant properties are improved, but the process is inefficient and difficult to implement
Solution Approach 1:
The patent replaces the mechanical melt blending process with a liquid injection system that delivers fire retardant directly into hemp batting through injection needles, eliminating the need for high-temperature melting and mixing operations while achieving better penetrative coverage
Solution Approach 2:
The patent introduces liquid fire retardant as an intermediary substance that can be easily pumped and injected through tubing and needles into the hemp batting, serving as a medium that carries the fire-retardant properties directly to the target material without requiring complex mechanical blending
2Reliability
If the melt blending method is used to apply fire retardant to hemp, then the fire-resistant properties are improved, but the implementation becomes difficult
Solution Approach 1:
The patent replaces the complex mechanical melt blending system with a simple liquid injection system using pumps, tubing, and needles, making the manufacturing process much easier to implement and control
Solution Approach 2:
The patent changes the physical state of fire retardant application from requiring high-temperature melting to simple liquid injection at ambient or controlled temperatures, significantly simplifying the manufacturing process while maintaining effectiveness
3Reliability
If soaking method is used to apply fire retardant to hemp insulation batting, then the retardant is applied to the surface, but the drying time is extended
Solution Approach 1:
The patent extracts the fire retardant from bulk liquid form and delivers it through concentrated streams via injection needles directly into the hemp batting, applying the retardant more precisely and efficiently without excessive saturation that would require long drying times
Solution Approach 2:
The patent uses hydraulic injection systems to deliver liquid fire retardant under pressure through needles into the hemp batting, enabling controlled penetration and distribution that reduces excess moisture and shortens drying time compared to surface soaking
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
This method enhances the fire-resistant properties of hemp insulation by efficiently injecting fire retardant into the fibers, reducing drying time and improving the overall effectiveness compared to soaking methods.
Implementation Method 1
a pressure pump connected to a container containing a liquid fire retardant... delivering the liquid fire retardant under pressure to a plurality of injection needles having one or more holes
Data Source
AI summary
A device and a method for applying a liquid fire retardant onto hemp fibers and into hemp insulation batting using a multiple needle construction, which can act as an insulation substitute to be used in building structures that does not irritate the skin or contain harmful, toxic elements and is a quicker and a more efficient method with a reduction in drying time.