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本装置能把湿新砂和湿再生砂连续烘干、冷却、输送,是自硬砂生产线上的重要设备。现在已在上海市印刷机铸造厂有机脂自硬砂生产线上使用,效果较好,既满足生产要求又节省燃料。目前国内湿新砂或湿再生砂的烘干方法很多,常用的有长卧式烘砂滚筒、三行程烘砂滚筒和热气流烘砂装置等。这些烘砂设备,都有一定的缺点。卧式烘砂滚筒和三行程烘砂滚筒所烘干的砂,虽然含水量可小于1％,但砂温比较高。当要求砂温不许太高时,不得不再用冷却设备,将砂进行冷却。这样设备较多,投资较大,占
The device can dry wet fresh sand and wet reclaimed sand continuously, and can be used for cooling and conveying. It is an important equipment in the production line of hard sand. Now in Shanghai printing machine foundry organic fat hard sand production line, the effect is better, both to meet the production requirements and save fuel. At present, there are many drying methods for wet fresh sand or wet recycled sand, commonly used are long horizontal sand drying drum, three-stroke sand drying drum and hot air sand drying device. These sandblasting equipment, there are certain shortcomings. Horizontal sand drying drum and drying sand drying drum trip, although the moisture content of less than 1%, but the sand temperature is relatively high. When asked for sand temperature must not be too high, had to use cooling equipment, sand cooling. Such equipment is more investment, accounting for