Measuring system for particle moving trajectory of spray drier based on image method

Abstract

The invention discloses a measuring system for the particle moving trajectory of a spray drier based on an image method. The measuring system comprises a laser source device, a CCD camera, aluminum powder colloid and a spray drying device, wherein the laser source device is located at the circle center of the bottom of a cylinder of a drying chamber and used for irradiating a certain cross section of a fluid in the drying chamber; and the CCD camera is located out of the drying chamber and used for recording the position of the tracer particle aluminum powder on the fluid cross section irradiated by the laser source device. The system provided by the invention employs the Tyndall effect exerted in irradiation of the colloid with laser as a basic principle and traces and measures the moving trajectory of atomized liquid drops in the spray drying device by using the CCD camera and particle tracing technology base on the image method; the system is used for research on the moving state of a solvent for a to-be-dried material and of dried powder in the spray drying device and facilitates further optimization of the flow of feed liquid and the structure of the spray drying device; and the system is more accurate and more automatic compared with traditional trajectory measurement.

Description

technical field [0001] The invention relates to an image method-based measurement system for particle running track of a spray dryer, which belongs to the technical field of physical measurement. Background technique [0002] Spray drying is the most common drying technology in the industry to dry liquid into powder. It has a history of more than 100 years. However, there are still many problems in the practical application of spray drying, such as the problem of sticking to the wall of the drying tower. The material liquid used for drying materials is a material containing organic solvents, and the material cannot be exposed to air. At present, people's research on the spray drying system mainly focuses on the research on the overall circulation drying system, but few people are involved in the drying process of the raw material liquid in the drying chamber, the atomized droplets and the running track of the dried material. Measuring the trajectory of the particles in the ...

AI Technical Summary

Problems solved by technology

[0002] Spray drying is the most common drying technology in the industry to dry liquid into powder. It has a history of more than 100 years. However, there are still many problems in the practical application of spray drying, such as the problem of sticking to the wall of the drying tower. The material liquid used for drying materials is a material containing organic solvents, and the material cannot be exposed to air

At present, people's research on the spray drying system is mainly concentrated on the research of the overall circulation drying system, but few people are involved in the drying process of the raw material liquid in the drying chamber, the atomized droplets and the running track of the dried material.

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