Suppression of Coating Formation in Cement Silo

시멘트 사일로의 적분생성억제

  • 양승혁 (한국산업안전공단) ;
  • 이병곤 (충북대학교 안전공학과)
  • Published : 2003.06.01


The object of this research is to prevent the industrial accidents which frequently occurred in breaking the coating in cement silo. Research was conducted to identify the cause of the coating formation, and the model experiment of aeration system was done to investigate the effect of moisture air on the coating formation. The results show that dehumidification of supply air in aeration system is the most important factor to suppress the coating formation, and the refrigerated low pressure air dryer applicable to the aeration system of cement silo was newly designed and developed. When this air dryer is applied to the cement silo, 88% of the moisture component of supply air can be reduced. Therefore the cleaning cycle extends over twice, and it contributes to the decrease of industrial accidents and cleaning cost.


cement silo;coating


  1. Krupp Polysius Service Manual, 'Problems in cement storage',
  2. J. Skalny, I. Jawed, H. Taylor, 'Studies on hydration of cement,' World Cem. Tech., 1978
  3. H. C. Alsyed Nielsen 'How to Avoid lumping of cement in silo' Rock product No.2, pp. 72, 1980
  4. K. H. Lagerdorf, 'Measurements of coating formation in cement silo' ZKG, No.9, pp. 443, 1980
  5. Von S. Sprung, 'Effect of storage condition on the properties of cement' ZKG, No.6, pp. 305, 1978
  6. 신규연, 김창범, '분쇄온도 및 저장조건이 시멘트 품질에 미치는 영향,' 시멘트 포럼, 양회협회, pp. 112-118, 1992
  7. 戶崎重弘, 空氣調和設備技術百科, 1985호