Pretreatment Method for Utilization of Coal Ash Landfilled in Ash Ponds

• Main Authors: CHOHYEON, KANG YOUNG YEUL, KIM MIN JUNG, UM NAMIL, HONG SOO YEON, YOON YOUNG SAM, CHOI JA HYUNG, JEON TAE WAN, YOON CHEOL WOO
• Format: Patent
• Language: English; Korean
• Published: 26.05.2023
• Subjects: DISPOSAL OF SOLID WASTE; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL; PERFORMING OPERATIONS; RECLAMATION OF CONTAMINED SOIL SOIL; SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS; SEPARATING SOLIDS FROM SOLIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS; SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS; SEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, ORSIFTING OR BY USING GAS CURRENTS; SORTING; TRANSPORTING

The present invention relates to a pretreatment method for utilization of landfilled coal ash (coal ash buried in a landfill near a coal-fired power plant), and more specifically, to a pretreatment method for utilization of landfilled coal ash, capable of utilizing coal ash with high utilization through simple separation processes of screening, float-sink, floatation, grinding, and magnetic separation. 본 발명은 매립-석탄재(석탄화력발전소 인근 매립지에 매립된 석탄재)의 활용을 위한 전처리 방법에 관한 것으로서, 보다 상세하게는 스크리닝(screening), 비중선별(float-sink), 부유선별(floatation), 분쇄(grinding) 및 자력선별(magnetic separation)의 간단한 분리공정을 통하여 높은 활용도로 석탄재를 활용할 수 있는 매립-석탄재의 전처리 방법에 관한 것이다.