公开(公告)号：US07297263B2

公开(公告)日：2007-11-20

申请号：US11461993

申请日：2006-08-02

申请人： David Nelson ,  Edward R. Rinker

发明人： David Nelson ,  Edward R. Rinker

IPC分类号： B01D39/16 ,  C02F1/28

CPC分类号： B01J20/28004 ,  C02F1/28 ,  C02F1/281 ,  C02F1/283 ,  C02F1/285 ,  C02F2307/04 ,  C02F2307/06

摘要： Water treatment devices that include filtration media with specified grain size distributions are provided. In one arrangement, the device contains a volume of grains such that between about 1 and 15 vol % of the grains have a grain size in a range between a first grain size and a second grain size, a first portion of the grains have grain sizes smaller than the first grain size, and a second portion of the grains have grain sizes larger than the second grain size. The first grain size can be between about 50 and 100 μm and the second grain size can be between about 100 and 150 μm. In other arrangements, the first grain size can be between about 70 and 90 μm and the second grain size can be between about 100 and 130 μm. The difference between the first grain size and the second grain size can be at least 20 μm. In other arrangements, the difference between the first grain size and the second grain size can be at least 10 μm.

摘要翻译： 提供包括具有特定粒度分布的过滤介质的水处理装置。 在一种布置中，该装置包含一定体积的晶粒，使得约1至15体积％的晶粒具有在第一晶粒尺寸和第二晶粒尺寸之间的范围内的晶粒尺寸，晶粒的第一部分具有晶粒尺寸 小于第一晶粒尺寸，并且第二部分晶粒具有大于第二晶粒尺寸的晶粒尺寸。 第一粒度可以在约50-100um之间，第二粒度可以在约100和150μm之间。 在其他布置中，第一粒度可以在约70和90μm之间，第二粒度可以在约100和130μm之间。 第一颗粒尺寸和第二颗粒尺寸之间的差可以至少为20μm。 在其他布置中，第一晶粒尺寸和第二晶粒尺寸之间的差可以至少为10um。