The Development of Multi Stage Separation Ball Mill for Producing Recycled Aggregate

Han-Sol Lee; Myouing-yuol Yu; Hoon Lee

doi:10.7844/kirr.2021.30.5.17

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2021 Vol.30, Issue 5 Preview Page Next Page

Research Paper

The Development of Multi Stage Separation Ball Mill for Producing Recycled Aggregate 순환 골재 생산을 위한 다단 박리형 볼밀 시스템 개발

31 October 2021. pp. 17-24

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Abstract

Natural aggregate regular exploitation has led to environmental and resource depletion issues; consequently, construction waste has become an important raw material in the supply of aggregate smoothly. The recycled aggregate produced in the most of recycled aggregate processing company in Korea has a high adhesion ratio of cement paste and mortar, which affects the water absorption ratio and density. Therefore, the quality of recycled aggregate needs to be improved. In this study, we improved the quality of recycled aggregate through the use of a multistage separation ball mill. This ball mill has a sieve which protects the ball mix and improves the motion. Products produced by using multistage separation ball mill were compared with various quality standard for utilization as recycle aggregate. Finally, we confirmed that the multistage separation ball mill can efficiently separate cement paste and mortar from natural aggregate and that it is suitable for the production of recycled aggregates.

Keywords

Recycled aggregate

multi stage separation ball mill

crushing

천연골재의 지속적인 개발은 환경 및 자원고갈 문제를 발생시키기 때문에 건설폐기물은 원활한 골재 수급을 위한 중요한 원료이다. 대부분의 순환골재 처리업체에서 생산되는 순환 골재는 시멘트 페이스트 및 모르타르 부착률이 상대적으로 높아 흡수율과 밀도에 영향을 미친다. 따라서 본 연구에서는 순환 골재의 품질을 개선하기 위해 볼의 혼합 방지와 움직임을 개선할 수 있는 체가 적용된 다단 박리형 볼밀을 활용하였다. 생산된 제품을 순환 골재로 사용하기 위해 품질 조건 만족 여부를 확인하였다. 최종적으로 다단 박리형 볼밀은 시멘트 페이스트와 모르타르를 효율적으로 단체 분리할 수 있었으며, 순환골재 생산에 적합한 장비임을 확인하였다.

키워드

순환골재

파분쇄

다단 박리용 볼밀

References

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Information

Publisher :The Korean Institute of Resources Recycling
Publisher(Ko) :한국자원리싸이클링학회
Journal Title :Resources Recycling
Journal Title(Ko) :자원리싸이클링
Volume : 30
No :5
Pages :17-24
Received Date : 2021-08-18
Revised Date : 2021-09-23
Accepted Date : 2021-09-27
DOI :https://doi.org/10.7844/kirr.2021.30.5.17

Resources Recycling ISSN:2765-3439(Print) 2765-3447(Online) 자원리싸이클링

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