减少锤式破碎机鼓风量的探讨

• 作 者: 刘丙丁 刘广占
• 机 构: 沈阳重型机械研究所,沈阳重型机械研究所,
• 出 处: 矿山机械
• 发表日期: 1984年11期
• 关键词: 鼓风量 锤式破碎机 空气流 粉尘污染 破碎室 质量交换 进料口 空气运动 物料 产品性能

凡是用锤子的旋转运动来破碎物料的破碎机,在运行中都不可避免地带动空气运动。运动的空气如果不局限在机壳内,要与机壳外的空气进行质量交换,就产生鼓风。当鼓风量和风速达到一定值,并且被破碎的物料又提供了足够的粉尘时,就会对环境产生严重的粉尘污染。比如电厂碎煤,煤尘对破碎室的粉尘污染有时竞超过国家工业卫生标准的300～600倍。因此,对此类破碎机,提高其产品性能的目标之一,就是减少它们的鼓风量。

Any crusher that uses a rotating motion of a hammer to crush the material will inevitably drive the air movement during operation. If the movement of the air is not confined to the case, the air must be exchanged with the outside of the case to create a blast. When the blast volume and wind speed reach a certain value, and the crushed material provides enough dust, it will cause serious dust pollution to the environment. For example, coal-fired power plant, coal dust on the crushing chamber of the dust sometimes competing for more than 300 ~ 600 times the national industrial hygiene standards. Therefore, one of the goals for such crushers to improve the performance of their products is to reduce their blast volume.