在阿尔泰拖拉机厂沸腾床式分选装置的使用经验和对车间废砂研究的基础上,罗勃佐夫拖拉机设计研究院设计了型砂和芯砂的旧砂再生装置。再生砂可代替单一粘土型砂的新砂使用。由落芯后的芯砂经筛砂机筛除的砂块和热清理工部的清除物组成的废砂,沿废物输送带1(图1),进入中间斗2,而后沿输送带3送 Based on the experience with the use of the ebullated bed separator in the Altai Tractor Plant and the research on the spent wastes in the workshop, the Robertson Tractor Design and Research Institute has designed the old sand reclamation unit for molding sand and core sand. Recycled sand can replace the use of a single clay sand new sand. The scoured sand consisting of screened sand core and scavenged material of the thermal cleaning department from the core sand after the falling of the core passes through the waste conveyor belt 1 (FIG. 1), enters the middle hopper 2, and then passes along the conveyor belt 3