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气流再生旧砂是一种再生效果较好的干法再生形式。与湿法相比,具有不耗水,不存在污泥、污水的处理困难,再生砂不需要烘干等优点。气流再生与机械再生相比,具有设备结构简单,无传动部分,易损件少,维修方便,砂粒破碎少等优点。因此国外美、苏、日等国家采用较多。国外采用的传统竖吹式,存在对旧砂水分要求严格,动力消耗多,占地面积大等缺点。我们于1984年开始研制较大型气流横吹式再生机,经过反复试验研究、设计制造、调试改进和生产考验,终于研制成功5吨/时气流横吹式再生机。1985年12月由云南省机械工业厅组织召开了全国性鉴定会。现已由东川市机械厂生产供应,加以推广使用。
Regeneration of old sand is a good regeneration of dry regeneration form. Compared with the wet method, the utility model has the advantages of no water consumption, no sludge, difficult treatment of sewage, no need of drying of recycled sand, and the like. Compared with the mechanical regeneration, the airflow regeneration has the advantages of simple equipment structure, no transmission part, few wearing parts, convenient maintenance and less sand crushing. Therefore, foreign countries such as the United States, the Soviet Union and Japan have adopted more. The traditional vertical blowing abroad, there are strict requirements on the water of old sand, power consumption, large area and other shortcomings. We began to develop a larger air-flow horizontal-type regenerator in 1984. After repeated experimental studies, design and manufacturing, commissioning and production tests, we succeeded in developing a 5-ton / hour air-flow horizontal-type regenerator. December 1985 by the Yunnan Provincial Machinery Industry Office organized a national appraisal. Now Dongchuan City Machinery Factory production supply, to promote the use.