Solid Particle Pneumatic Conveying With Gas-Phase Equilibrium Control
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Solution Overview
Problem
Conventional pneumatic conveying methods struggle with maintaining the quality of solid particles that can undergo dissociation equilibrium reactions, as dissociation during transport leads to altered matter clogging the conveying path, limiting path selection and increasing costs.
Innovation Solution
Conveying solid particles using a gas flow containing the gas component that can dissociate from the particles, suppressing dissociation through controlled equilibrium reactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional pneumatic conveying methods are used for solid particles capable of dissociation equilibrium reactions, then the conveying process can be simplified, but particle dissociation occurs leading to altered matter that clogs the conveying path
Solution Approach 1:
The patent applies the inert atmosphere principle by introducing a gas component into the conveying system that shifts the dissociation equilibrium of solid particles toward the undissociated state. This gas creates a chemical environment that suppresses dissociation reactions, preventing the formation of altered matter that would clog the conveying path, thereby maintaining system reliability while using a relatively simple pneumatic conveying setup
2Ease of manufacture
If solid particles capable of dissociation are conveyed using conventional methods, then conveying cost can be reduced by using pneumatic conveying, but particle quality deteriorates due to dissociation and clogging
Solution Approach 1:
The patent applies parameter changes by modifying the chemical composition parameter of the gas phase in the conveying system. By introducing a specific gas component and controlling its concentration, the dissociation equilibrium of solid particles is shifted, maintaining particle quality while enabling cost-effective pneumatic conveying throughout the transport path
3Stability of the object's composition
If solid particles are conveyed using a conveyor instead of pneumatic conveying to prevent dissociation, then particle quality is maintained, but conveying path selection is limited and costs increase
Solution Approach 1:
The patent enables versatile pneumatic conveying path selection by creating an inert-like chemical environment through the introduction of a gas component that suppresses dissociation. This allows the use of flexible pneumatic conveying paths rather than being constrained to mechanical conveyor systems, maintaining both particle quality and conveying adaptability
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
Enables flexible path selection and significantly reduces conveying costs by preventing particle dissociation and clogging, maintaining particle quality.
Implementation Method 1
solid particles which contain a solid material capable of undergoing a dissociation equilibrium reaction that dissociates at least one type of gas component
Data Source
Figure 1
AI summary
The present invention provides a method for pneumatically conveying solid particles, wherein the solid particles comprise a solid material that is capable of undergoing a dissociation equilibrium reaction that dissociates at least one type of gas component, and the solid particles are conveyed by a gas flow containing the gas component. It is preferable that an average particle size of the solid particles is from 0.1 to 1.0 mm. Furthermore, it is also preferable that the solid particles are conveyed by the gas flow in a state of any of a floating flow, a fluidized flow, and a plug flow. Furthermore, it is also preferable that the solid particles comprise a solid material that is capable of undergoing a dissociation equilibrium reaction that dissociates at least one type of gas component and at least one type of solid component, and the solid particles are conveyed in a conveying pipe by the gas flow, and the solid particles or the solid component stuck to an inner surface of the conveying pipe is removed by the gas flow.