Modular Wood Pellet Plant with Integrated Shaft Cooler
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Solution Overview
Problem
Conventional systems for producing wood pellets or other solid granules face high investment costs, complex installation processes, and inefficient energy use due to individualized planning and integration of different components, along with challenges in transportation and assembly.
Innovation Solution
A modular system with transportable, collapsible containers housing devices for feeding, processing, drying, pressing, cooling, and dispensing, featuring a heat buffer for energy optimization and standardized components for reduced assembly time and cost, with a shaft cooler integrated within a single container for space and transport efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional pelleting plants are designed as site-specific individual projects with integrated machinery from various manufacturers, then the system can be customized to specific requirements, but investment costs increase and assembly time extends
Solution Approach 1:
The plant is divided into separate functional modules (shredding module, drying module, pressing module, cooling module) that can be independently designed, manufactured, and assembled. Each module contains the necessary machinery for its specific function, eliminating the need for complex integration of separate machines from various manufacturers into a single customized system.
Solution Approach 2:
The modular design creates universal building blocks that can be configured in different arrangements to meet various production requirements. The same standard modules can serve different functions depending on their arrangement and configuration, reducing the need for custom-designed machinery for each specific application.
2Reliability
If conventional pelleting plants are designed as custom-made individual projects, then the system can be optimized for specific sites, but investment costs and project implementation time increase significantly
Solution Approach 1:
The modular components are pre-designed, pre-engineered, and pre-tested in standardized configurations before deployment. This preliminary preparation of standardized modules eliminates the need for lengthy on-site planning and customization, while still allowing process optimization through proper module selection and arrangement.
Solution Approach 2:
The system allows optimization of production parameters by selecting and configuring different combinations of standardized modules rather than redesigning the entire system. Process parameters can be adjusted by changing module configurations, speeds, and operational settings without extending the implementation timeline.
3Adaptability or versatility
If the cooling device is distributed across multiple containers, then transport flexibility is improved, but assembly complexity and potential for damage increase
Solution Approach 1:
The cooling device is integrated as a complete functional unit within a single container rather than being distributed across multiple containers. This merging of the cooling system into one self-contained module simplifies assembly by eliminating the need to connect multiple distributed components, while the container itself provides the necessary transport flexibility.
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 modular system reduces investment costs, simplifies installation, and enhances energy efficiency by allowing for easy relocation and assembly, while minimizing spare parts inventory and operational risks, with improved safety and reduced assembly times.
Implementation Method 1
a cooling device in the form of a shaft cooler (712), which is completely arranged in one container (700)
Implementation Method 2
The pellets are then cooled, which solidifies them
Implementation Method 3
a heat buffer storage tank (14), into which the heated cooling medium is fed from the cooling medium outlet of the device for cooling
Implementation Method 4
a roller press is used, in which the material is forced through a die with holes corresponding to the desired pellet diameter
Implementation Method 5
The pellets are then pressed from the processed material
Data Source
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AI summary
Disclosed is a pellet cooling device featuring energy-efficient heat recovery in a plant for producing wood pellets or other solid granulates from small pieces of organic material, said plant comprising devices for feeding, processing, drying, compressing, cooling and discharging the material. At least some of said devices are arranged in containers that can be individually transported and can be modularly combined to form at least a substantial portion of the plant.