流体床的干燥器袋是很难清洗的设备之一，经常用于特定的产品。
Fluid bed dryer bags are another example of equipment that is difficult to clean and is often dedicated to a specific product.
本发明给出了一个用有着特殊结构的气体鼓泡流体床，对石棉粗精矿或含石棉产物进行精选的方法。
This invention relates to a method to sort coarse clean asbestos ore of asbestos-containing products with a gas-bubbling fluidized bed having a special structure.
下泄热交换器将流体的温度降到合适的定值，这个温度下，净化床工作允许。
The letdown heat exchanger reduces letdown fluid temperature to a value that is compatible with the ion exchanger resin.
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