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随着我国基础设施建设的持续发展和对环境保护的重视，现有的天然砂资源已不能满足工程需要，使用人工砂已成为今后的发展趋势。 传统砂石料工厂的人工砂生产通常采用国产棒磨机加工，再通过洗砂机洗砂和脱水而得。因此，生产出来的人工砂堆在成品料场通常需要5～7天的自然脱水
With the continuous development of infrastructure construction in our country and the emphasis on environmental protection, the existing natural sand resources can no longer meet the needs of the project, and the use of artificial sand has become the development trend in the future. Artificial sand production in traditional sand stone factories is usually processed by domestic rod mills and then sand washing and dehydration by sand washers. Therefore, the produced artificial sand heap usually takes 5 to 7 days of natural dehydration in the finished product yard.