Conical Gasifier Mixing Head for Vortex Biomass Dispersion
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Solution Overview
Problem
Existing gasification reactors face challenges in homogeneously dispersing and agitating biomass particles in oxidizing gas, leading to unsatisfactory conversion efficiency and increased costs due to the need for fine particle preparation and separation.
Innovation Solution
A mixing device with a conical injection head and internal cylindrical walls creates a vortex mixing zone, ensuring homogeneous dispersion and agitation of particles in oxidizing gas, using a cylindrical-conical gas flow path to achieve efficient mixing and thermochemical reactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If biomass particles are ground into small particles or dispersed into fine droplets for entrained flow reactors, then fuel conversion efficiency and power generation are improved, but fuel preparation complexity and cost increase
Solution Approach 1:
The invention changes the physical parameters of the fuel particles by controlling their size distribution and morphology through the injection system design. The conical injection head creates specific flow patterns that naturally disperse particles without requiring extensive pre-grinding, thus improving conversion efficiency while reducing preparation complexity
Solution Approach 2:
The invention uses pneumatic principles by injecting fuel particles through a conical injection head using gas flow. The cylindro-conical gas flow channel creates a vortex that aerodynamically disperses particles, eliminating the need for mechanical grinding and reducing fuel preparation complexity while maintaining high conversion efficiency
2Device complexity
If biomass particles are not homogeneously dispersed and agitated in oxidizing gas, then fuel preparation complexity is reduced, but conversion efficiency becomes unsatisfactory
Solution Approach 1:
The invention uses curved surfaces in the conical injection head and cylindro-conical gas flow channel to create vortex flow patterns. The curved geometry naturally agitates and homogeneously disperses particles through rotational motion, achieving high conversion efficiency without complex preparation systems
Solution Approach 2:
The invention replaces mechanical mixing and agitation systems with aerodynamic vortex flow generated by the conical injection geometry. Gas flow dynamics naturally disperse and mix particles, eliminating the need for mechanical stirrers or complex agitation mechanisms while maintaining high conversion efficiency
3Device complexity
If unreacted fuel particles are not separated, then device complexity is reduced, but process cost increases due to unsatisfactory conversion efficiency
Solution Approach 1:
The invention enables the system to self-optimize conversion by creating flow conditions where particles naturally react completely before exiting. The vortex flow and extended residence time in the combustion chamber allow thorough combustion, reducing unreacted particles without requiring complex separation systems
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 device enhances conversion efficiency by ensuring uniform mixing and agitation of particles, facilitating rapid thermochemical reactions and producing high-quality synthesis gas with reduced operational costs.
Implementation Method 1
the connecting wall is positioned between the internal cylindrical wall and the truncated conical base, and has a cylindro-conical connecting face bordering the cylindro-conical gas flow channel and extending to the internal cylindrical wall, to create a vortex mixing zone
Data Source
Figure 1
Figure 2~3
Figure 4A~4C
AI summary
The invention relates to a particle and oxidizing gas mixing device, comprising a conical injection head for creating a cylindro-conical gas stream with an apex angle ranging from 60° to 120°, resulting in a corollary bursting of the oxidizing particle mixture. The invention also relates to equipment comprising the mixing device according to the invention, equipped with a particle delivery system and an adapter ferrule. The invention further relates to apparatus comprising a gasifier assembled with a mixing device according to the invention. Finally, the invention relates to a pyrogasification process employing apparatus according to the invention.