内混式鼓风喷嘴污泥雾化的工业规模实验研究

IF 2.7 3区工程技术 Q3 ENGINEERING, CHEMICAL

Drying Technology Pub Date : 2023-07-15 DOI:10.1080/07373937.2023.2235412

Chulin Yu, Yulin Cui, Binfeng Liu, Yu Li, Rui Wang, Chunlong He, Jun Yu Li, Qiang He

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Industrial-scale experimental study of internal-mixing air-blast nozzle for sludge atomization

Abstract The atomization of sewage sludge is a key step in its drying process. This study conducts an industrial-scale experimental study to investigate the performance of a self-developed internal-mixing air-blast nozzle for atomizing sewage sludge. The size of atomized droplets is calculated using image processing technology. Using the specific size and characteristic size of the droplets, the droplet distribution and the droplet motion behavior in spray field are investigated at various air-to-liquid mass flow rate ratio (ALR). The larger the ALR, the smaller the atomization droplets. By installing outlet diffusers and impaction pins, the atomization angle can be increased and the distribution of droplets in the spray field can be improved. The outlet diffuser with an outlet angle of 90° and the square impaction pin exhibit optimal effect. Experiments with real scale and industrial grade have a significant reference value for industrial applications of sludge atomization.

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来源期刊

Drying Technology 工程技术-工程：化工

CiteScore

7.40

自引率

15.20%

发文量

133

审稿时长

2 months

期刊介绍： Drying Technology explores the science and technology, and the engineering aspects of drying, dewatering, and related topics. Articles in this multi-disciplinary journal cover the following themes: -Fundamental and applied aspects of dryers in diverse industrial sectors- Mathematical modeling of drying and dryers- Computer modeling of transport processes in multi-phase systems- Material science aspects of drying- Transport phenomena in porous media- Design, scale-up, control and off-design analysis of dryers- Energy, environmental, safety and techno-economic aspects- Quality parameters in drying operations- Pre- and post-drying operations- Novel drying technologies. This peer-reviewed journal provides an archival reference for scientists, engineers, and technologists in all industrial sectors and academia concerned with any aspect of thermal or nonthermal dehydration and allied operations.