Continuous Dry Granular Polymer Additive Process
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Solution Overview
Problem
Current processes for transforming solid and wet polymer materials into dry granular additive materials are batch-based, making them complex, costly, and labor-intensive, limiting their efficiency and scalability.
Innovation Solution
A continuous process involving grinding, solid/gas separation, mixing, and re-grinding with hot gas to produce a dry granular additive polymer material, allowing for automated operation and reduced human intervention, with the ability to incorporate multiple additives for enhanced homogeneity and properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If batch processes are used for transforming solid and wet polymer materials into dry granular additive materials, then the process can be implemented with simple equipment, but the process becomes complex in operation, costly, and labor-intensive
Solution Approach 1:
The patent implements a continuous process where solid and wet polymer blocks are continuously ground, mixed with additives, dried, and screened without batch interruptions. The system maintains continuous material flow through interconnected grinding chambers, mixing zones, and drying sections, eliminating the sequential batch operations that cause complexity and labor requirements.
Solution Approach 2:
The patent combines multiple unit operations (grinding, additive mixing, drying, screening) into a single integrated continuous system. Rather than separate batch processes for each operation, the invention merges these functions into one streamlined process flow, reducing overall process complexity and operational overhead.
2Ease of manufacture
If batch processes are used for transforming solid and wet polymer materials into dry granular additive materials, then the equipment requirements are minimal, but the production cost and labor requirements increase
Solution Approach 1:
The continuous processing system operates without interruption, continuously converting solid and wet polymer blocks into dry granular additive materials. This eliminates the idle time between batches and maintains constant production output, significantly improving productivity while the integrated design keeps equipment requirements manageable.
Solution Approach 2:
The system performs preliminary grinding and additive incorporation on the solid and wet blocks before final drying and screening. This preliminary processing prepares the material in advance for the final granulation stage, enabling continuous high-speed production without compromising product quality.
3Manufacturing precision
If multiple additives are incorporated during the continuous process, then the homogeneity and properties of the final product are enhanced, but the process complexity and operational requirements increase
Solution Approach 1:
The patent combines multiple additive incorporation steps into a single continuous mixing zone where various additives are simultaneously introduced and uniformly distributed throughout the ground polymer material. This merged approach achieves superior homogeneity while avoiding the complexity of multiple separate dosing and mixing stages.
Solution Approach 2:
The continuous airflow system acts as an intermediary medium to transport and distribute multiple additives uniformly through the grinding and mixing chambers. The air stream facilitates homogeneous dispersion of various additives without requiring complex mechanical dosing mechanisms for each substance.
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 process enables the efficient, cost-effective, and automated production of a homogeneous dry granular additive polymer material, reducing operational costs and improving scalability while ensuring high product quality and consistency.
Implementation Method 1
grinding blocks of a starting polymer material in a first grinder supplied with hot gas
Implementation Method 2
grinding blocks of a starting polymer material in a first grinder supplied with hot gas
Implementation Method 3
a solid / gas separation step during which the solids and the moisture-laden gas from the first addition step are separated
Data Source
Figure 1
Figure 2
AI summary
The process for obtaining a dry granular additive-enhanced polymer material comprises: - a first step (50) of grinding blocks of a starting polymer material in a first grinder supplied with hot gas, in order to obtain a ground polymer material in the form of particles, - a first step (51) of metering out at least a first additive, - a first step (53) of adding each first metered out additive to the particles of ground polymer material; - a step (55) of solid/gas separation during which the solid materials and the moisture-laden gas resulting from the first addition step are separated; - a first step (56) of mixing the solid materials using a mixer; - a particle separation step (57) in order to separate the largest particles resulting from the mixer from the smallest particles resulting from the mixer; - a second step (58) of grinding the largest particles with a second grinder supplied with hot gas and - a step (59) of reinjecting the particles resulting from the second grinding step in order to return them to the separation step and - a step (61) of packaging the smallest mixed particles consisting of dry granular additive-enhanced polymer material.