Gas-Permeable Processing Tank for Uniform Particulate Drying
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Solution Overview
Problem
In particulate material processing, hollow inverted-cone-shaped processing tanks made of gas-permeable materials face issues with uniform gas flow, leading to prolonged processing times due to hot air flowing to the external periphery, resulting in inefficient drying and processing.
Innovation Solution
The processing tank is designed with a lower gas-permeable section for radial gas diffusion and an upper less permeable section to prevent disproportionate gas flow, combined with a closing member to ensure uniform gas distribution, a gas-permeable funnel for reduced stagnation, and a dispersing member to level the material, reducing processing time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If the entire hollow inverted-cone-shaped processing tank is made of gas-permeable material, then gas permeability is improved, but gas flow uniformity deteriorates because hot air flows to the external periphery where the particulate material layer thickness is small
Solution Approach 1:
The processing tank is divided into a lower gas-permeable section and an upper lower-permeability section. The lower section allows radial gas diffusion to reduce processing time, while the upper section prevents disproportionate gas flow to the periphery, ensuring uniform gas distribution throughout the particulate material layer.
2Object-generated harmful factors
If the processing tank is made gas-permeable, then gas permeability is improved, but processing time increases due to hot air flowing to the external periphery
Solution Approach 1:
The processing tank is divided into a lower gas-permeable section and an upper lower-permeability section. The lower section allows radial gas diffusion to reduce processing time, while the upper section prevents disproportionate gas flow to the periphery, ensuring uniform gas distribution throughout the particulate material layer.
3Object-generated harmful factors
If the upper part of the processing tank is gas-permeable, then gas permeability is improved, but gas flow uniformity deteriorates
Solution Approach 1:
The processing tank is divided into a lower gas-permeable section and an upper lower-permeability section. The lower section allows radial gas diffusion to reduce processing time, while the upper section prevents disproportionate gas flow to the periphery, ensuring uniform gas distribution throughout the particulate material layer.
4Object-generated harmful factors
If the entire processing tank is gas-permeable, then gas permeability is improved, but processing uniformity deteriorates due to stagnation regions
Solution Approach 1:
The processing tank is divided into a lower gas-permeable section and an upper lower-permeability section. The lower section allows radial gas diffusion to reduce processing time, while the upper section prevents disproportionate gas flow to the periphery, ensuring uniform gas distribution throughout the particulate material layer.
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 configuration significantly reduces processing time by ensuring uniform gas flow and distribution, enhancing efficiency and quality by minimizing irregular processing and stagnation regions.
Implementation Method 1
At least the lower part of the processing tank is made of a gas-permeable material that allows the process gas for processing the particulate material to pass through
Implementation Method 2
the process gas diffuses in radial fashion around the lower part of the particulate material layer
Data Source
AI summary
A particulate material processing apparatus has a vessel and a processing tank. The vessel has a charging port for charging a particulate material into the vessel. The processing tank receives the particulate material charged from the charging port. The processing tank is shaped so as to narrow towards the bottom. At least the lower part of the processing tank is made of a gas-permeable material that allows the process gas for processing the particulate material to pass through. The upper part of the processing tank has lower gas permeability than the lower part of the processing tank.