公开(公告)号：US5364528A

公开(公告)日：1994-11-15

申请号：US16278

申请日：1993-02-11

申请人： Lothar Schwarz ,  Guenther Kuntz

发明人： Lothar Schwarz ,  Guenther Kuntz

IPC分类号： B01D29/50 ,  B01D29/00 ,  B01D29/11 ,  B01D29/52

CPC分类号： B01D29/114 ,  B01D2201/307

摘要： A filter apparatus is described, in which there are in the interior of a filter housing (7) a multiplicity of filter elements (1) which are suspended on the filter cover (3) and in which the inner bores of the filter cartridges are connected to the outlet nozzle (6) via a system of channels. Against the wall of the filter housing (7) there bears a film bag (2), the upper end of which is welded to an O-ring (4), which is seated in an annular groove on the flange of the filter housing, with the diameters of O-ring and film bag being identical. Furthermore, volume displacers (16, 17, 25), which extend in the axial direction over the entire length of the filter housing, are provided between filter bag (2) and inner wall of the filter housing as well as in the inner space of the filter cartridges. When a filter is changed, these volume displacers are, for example, inflated with compressed air, as a result of which the volume of residual filtrate is considerably reduced, so that less loss of dispersion occurs. The arrangement described permits an easy filter change and offers advantages in the disposal of the residues (2).

摘要翻译： 描述了一种过滤装置，其中在过滤器壳体（7）的内部存在多个过滤器元件（1），所述多个过滤器元件（1）悬挂在过滤器盖（3）上，并且过滤器滤芯的内孔连接 通过通道系统到出口喷嘴（6）。 在过滤器壳体（7）的壁上，带有一个薄膜袋（2），其上端焊接在O形环（4）上，该O形环位于过滤器壳体的凸缘上的环形槽中， O形圈和薄膜袋的直径相同。 此外，在过滤器壳体（2）和过滤器壳体的内壁之间以及在过滤器壳体的内部空间中以及在过滤器壳体的内部空间中以及在过滤器壳体的内部空间中，在过滤器壳体的整个长度上沿轴向方向延伸的容积置换器（16,17,25） 滤芯。 当过滤器改变时，这些体积置换器例如用压缩空气充气，结果残留滤液的体积显着减少，从而发生较少的分散损失。 所描述的布置允许容易的过滤器改变并且在处理残余物（2）中提供优点。

公开(公告)号：US5436070A

公开(公告)日：1995-07-25

申请号：US311031

申请日：1994-09-26

申请人： Wolf-Dieter Schroer ,  Attila Vass ,  Juergen Sauter ,  Juergen Schmidt ,  Guenther Kuntz

发明人： Wolf-Dieter Schroer ,  Attila Vass ,  Juergen Sauter ,  Juergen Schmidt ,  Guenther Kuntz

IPC分类号： G11B5/708 ,  C09D5/23 ,  G11B5/70 ,  G11B5/702 ,  G11B5/712 ,  G11B5/714 ,  G11B5/73 ,  G11B5/842 ,  G11B5/00

CPC分类号： G11B5/714 ,  G11B5/70 ,  G11B5/7013 ,  G11B5/702 ,  G11B5/7022 ,  G11B5/712 ,  G11B5/842 ,  Y10S428/90 ,  Y10T428/25 ,  Y10T428/256 ,  Y10T428/26 ,  Y10T428/2991 ,  Y10T428/2998

摘要： A magnetic dispersion comprising finely divided iron power or iron alloy powder having a BET value of more than 35 m.sup.2 /g dispersed in a polymeric binder and organic solvent, whose filterability is markedly improved, is obtained by using certain low molecular weight phosphoric esters of the general formula I or II ##STR1## combined with a dispersion-active compound which contains at least one polar group capable of adsorption on the magnetic pigment. The polar group of the dispersion-active compound can be an acid or alkaline or amphoteric group or a group capable of hydrogen bonding or polarization. The dispersion-active compound can be a polycondensate, a polyaddition product or a chain growth copolymer which can also be used in the magnetic dispersion combined with customary other polymeric binders.

摘要翻译： 通过使用某些低分子量磷酸酯，可以获得包含分散在聚合物粘合剂中的BET值大于35m 2 / g的细分铁粉或铁合金粉末的磁性分散体，其过滤性明显改善， 通式I或II与含有至少一个能够在磁性颜料上吸附的极性基团的分散体活性化合物组合。 分散活性化合物的极性基团可以是酸或碱性或两性基团或能够键合或极化的基团。 分散体活性化合物可以是缩聚物，加聚产物或链增长共聚物，其也可以用于与常规其它聚合物粘合剂组合的磁性分散体中。