TWI689361B
[Problem] To reclaim molding sand that has been discharged from green sand casting equipment, using only dry mechanical reclamation. [Solution] A method comprising a step of measuring a water content and a magnetized matter content of molding sand discharged from green sand casting equipment; a step...
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Zusammenfassung: | [Problem] To reclaim molding sand that has been discharged from green sand casting equipment, using only dry mechanical reclamation. [Solution] A method comprising a step of measuring a water content and a magnetized matter content of molding sand discharged from green sand casting equipment; a step of comparing the measured water content with a first control value, and if the water content exceeds the first control value, drying the molding sand until the water content becomes equal to or less than the first control value; a step of comparing the measured magnetized matter content with a second control value, and if the magnetized matter content exceeds the second control value, magnetically separating the molding sand until the magnetized matter content becomes equal to or less than the second control value; thereafter, a step of reclaiming the molding sand by dry mechanical reclamation until a loss-on-ignition becomes equal to or less than a third control value; and a step of classifying the molding sand u |
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