公开(公告)号：US06892892B2

公开(公告)日：2005-05-17

申请号：US10389920

申请日：2003-03-18

Applicant: Hongxiao Wang

Inventor： Hongxiao Wang

IPC: B01D29/23 ,  B01D39/20 ,  B01J49/00 ,  B01D29/00

CPC classification number: B01D29/23 ,  B01D39/2075 ,  B01D39/2093 ,  B01D2201/02 ,  B01J49/09

Abstract: A frustum filter used for separation of cation and anion exchange resins, which is used in condensate water polishing system or apparatus, wherein said frustum filter comprises a microporous filtering net body (1) which is formed by sintering a mixture of silicon carbide grains and a binder, said net body being provided with a plurality of micropores, the diameter of said micropores being in a range of 50-300 micron, said filtering net body (1) being shaped as an inverted truncated cone and its maximum diameter being in a range of 50-200 cm, the angle between a inner tapered face and a horizontal plane being in a range of 15°-30° and the thickness of said filtering net body being in a range of 2 cm-14 cm. Some reinforcing steel bars which have the property of high temperature resistance are embedded in said filtering net body(1) in advance. A steel ring (6) welded at the housing (2) is fixed on the external circumference of said filtering net body (1). This invention has the following advantages: it can distribute evenly water and has high strength; it can not be blocked easily and will not create dead zones when filtration; the product of the invention has high strength and cannot be deformed easily over the prior art; it also has the properties of strong acid fastness, strong alkali fastness, high temperature resistance, oxidation resistance.

Abstract translation: 用于分离阳离子和阴离子交换树脂的截头锥形过滤器，其用于冷凝水抛光系统或设备中，其中所述截头锥形过滤器包括微孔过滤网体（1），其通过烧结碳化硅颗粒和 粘合剂，所述网体设置有多个微孔，所述微孔的直径在50-300微米的范围内，所述过滤网本体（1）成形为倒圆锥体，其最大直径在一定范围内 为50-200cm，内锥面与水平面之间的角度为15°-30°，所述过滤网体的厚度为2cm〜14cm的范围。 具有耐温性的一些钢筋预先嵌入所述过滤网体（1）中。 焊接在壳体（2）上的钢环（6）固定在所述过滤网体（1）的外周上。 本发明具有以下优点：均匀分布均匀，强度高; 过滤时不能容易地堵塞，不会产生死区; 本发明的产品具有很高的强度，并且不能比现有技术容易地变形; 它具有耐酸牢度好，耐碱牢度好，耐高温，抗氧化等特点。