산업용 시멘트 소성로의 다단사이클론 예열기와 예소성로 내부 유동장 수치해석

• 영문명: Numerical analysis of flow field inside the multistage cyclone preheater and pre-calciner of an industrial cement kiln
• 발행기관: 한국환경에너지공학회
• 저자명: 이구회(Gu-Hoe Lee) 송민정(Min-Jeong Song) 장지원(Ji-Won Jang) 오세천(Sea-Cheon Oh) 김우태(Woo-Tae Kim)
• 간행물 정보: 『환경에너지공학』제17권 제2호, 1~9쪽, 전체 9쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2022.12.31

영문 초록

The turbulent flow field inside an industrial cement kiln was calculated via the finite volume method. The calculation domain includes multistage cyclone preheater, pre-calciner, and a part of rotary kiln. The primary air is supplied through a rotary cement kiln which is connected to the pre-calciner. The steady state velocity field showed that a strong circulating flow pattern was formed in the first and second stage cyclone preheaters. To analyze the blocking effect of solid particles in the pipes attached the cyclone bottom part, the case without the connecting pipes was compared with the reference case with the connecting pipes. As the blockage ratio changes depending on the operating conditions, the simulation results for the two cases provide valuable information for the two extreme situations where the reference case represents non-blocking and the modified case represents complete blocking. To simulate the variable blocking effect of solid particles in the connecting pipes, a part of pipes was filled with porous medium. The effect of viscous resistance of the porous medium on the flow field was numerically investigated.

목차

1. 서 론

2. 연구 방법

3. 결과 및 토의

4. 결 론

키워드

Multistage Cyclone Preheater Pre-calciner Rotary Cement Kiln