在成批、大量的砂型铸造生产中,回用旧砂温度过高,直接影响了铸件的质量。因此,铸造热砂的冷却,就成为铸造生产中的一个关键问题。近年来,由于化学自硬砂和水玻璃砂等工艺的发展,对型砂需要严格控制,特别是对新砂、再生砂的水分和烘干后温度均有要求。所以,新砂与再生砂烘干后的冷却问题,现有设 In batch, a large number of sand casting production, the reuse of the old sand temperature is too high, a direct impact on the quality of the casting. Therefore, the cooling of the foundry sand becomes a key issue in the casting production. In recent years, due to the development of the chemical self-hardening sand and sodium silicate sand, the sand needs to be strictly controlled, especially for the fresh water and the regenerated sand and the temperature after drying. Therefore, the new sand and recycled sand drying problem, the existing set