Pelletizing Thermoplastic Road Marking Material
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Solution Overview
Problem
Conventional thermoplastic road marking materials are supplied in powdered form, making them difficult to load and posing safety hazards due to dust production, and existing methods do not effectively minimize these issues.
Innovation Solution
A system for pelletizing thermoplastic road marking material that includes a mixing section to combine dry ingredients, a melting section to heat the mixture, and a pelletizing section where the molten mixture is cooled to form solid pellets containing glass beads, which can be easily transported and melted for application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If thermoplastic road marking material is supplied in powdered form, then it can be easily stored and transported in bulk, but it creates dust hazards and is difficult to load safely
Solution Approach 1:
The patent changes the physical form of the thermoplastic material from powdered state to pelletized state. This parameter change eliminates dust generation while maintaining bulk storage capability, as pellets contain the same materials in a consolidated form that does not create airborne particles during handling and loading.
2Quantity of substance
If thermoplastic material is supplied in powdered form, then it can be stored in bulk, but the loading process requires special safety equipment and strict safety regulations
Solution Approach 1:
By transforming the material from powder to pellets, the patent maintains bulk storage capacity while dramatically simplifying the loading operation. Pellets can be loaded using standard equipment without special safety precautions, eliminating the operational complexity associated with powdered material handling.
3Quantity of substance
If conventional powdered mix is used, then material can be stored in bulk, but safety hazards increase and special equipment is required
Solution Approach 1:
The patent applies parameter change by converting the material form from powder to pellets. This eliminates dust production entirely while preserving bulk storage capability, as the pelletized form maintains volume efficiency without creating harmful airborne particles during storage or handling.
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 pelletized form reduces safety hazards, simplifies the loading process, and retains the homogenous characteristics of the thermoplastic material, saving time and energy during application while maintaining durability and retroreflectivity.
Implementation Method 1
a mixing section configured to mix a plurality of materials suitable to form a dry mixture
Implementation Method 2
a melting section, where the dry mixture is heated to a pre-determined degree sufficient to melt the dry mixture
Implementation Method 3
heated to a pre-determined degree sufficient to melt the dry mixture and form a homogenous melted thermoplastic road marking substance
Implementation Method 4
The molted mixture is deposited into form pockets in a pelletizing section, where the molted mixture is cooled as it is progressively moved along a conveyor
Implementation Method 5
As the thermoplastic substance is cooled it solidifies to form individual pellets containing glass beads
Data Source
AI summary
The invention relates to pelletizing thermoplastic road marking substance containing light-reflective agents, such as glass beads. A dry formulation of the ingredients is transported to a heating station, where the dry mix is heated to a molten state. The melted mix is extruded into form pockets of a moving conveyor. As the conveyor moves through a cooling station, the molten substance in the form pockets solidifies forming individual pellets. The pellets are then removed from the form pockets, packaged and shipped to customers.