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    • 21. 发明公开
    • CERAMIC FILTER
    • KERAMIKFILTER
    • EP1607131A1
    • 2005-12-21
    • EP04722038.9
    • 2004-03-19
    • NGK INSULATORS, LTD.
    • YAMADA, Tomohiro, NGK INSULATORS, LTD.
    • B01D39/20B01D46/00
    • B01D63/066B01D39/2068B01D46/2451B01D46/2455B01D46/2459B01D46/2466B01D46/247B01D65/003B01D69/046B01D2046/2492B01D2046/2496B01D2313/04Y10T428/24149Y10T428/24157
    • A ceramic filter (1), comprising a porous body (2) and filtration membranes (5), wherein the cross section shapes of a plurality of main flow passages (3) in a direction perpendicular to the flow direction of fluid to be purified or purified fluid are aligned in rows with a specified pattern and the cross section shape of a specific partition wall part (18) in the direction perpendicular to the flow direction of the fluid to be purified or the purified fluid is so formed as to be encompassed by a shape defined by two parallel lines apart at a specified distance from each other. The cross section shape of a first specific main flow (3a) in the direction perpendicular to the flow direction of the fluid to be purified or the purified fluid is formed in a polygon of a heptagon or more arranged in a specified state, θ 1 , θ 2 , θ 3 , and θ 4 are within the range of 110 to 160°, and A and B satisfy the requirement of 0.3B ≤ A ≤ 0.7B. Thus, a yield can be increased without causing a defect such as a crack in the filtration membranes.
    • 一种陶瓷过滤器(1),包括多孔体(2)和过滤膜(5),其中多个主流道(3)在垂直于要净化的流体的流动方向的方向上的截面形状 精制流体以规定的图案排成行,并且特定分隔壁部分(18)在与待净化流体的流动方向垂直的方向上的横截面形状或净化流体被形成为包围在 由彼此间隔一定距离的两条平行线限定的形状。 在与要净化的流体的流动方向垂直的方向上的第一特定主流(3a)的横截面形状或净化流体形成为以规定状态排列的七边形或更多个的多边形, 2号,3号,3号,4号,在110〜160度范围内,A,B满足0.3B≤A≤0.7B的要求。 因此,可以增加产率而不会引起过滤膜中的裂纹等缺陷。
    • 28. 发明公开
    • PROCESS FOR PRODUCING CERAMIC POROUS MEMBRANE
    • VERFAHREN ZUR HERSTELLUNG EINERPORÖSENKERAMIKMEMBRAN
    • EP1985598A1
    • 2008-10-29
    • EP07714019.2
    • 2007-02-09
    • NGK INSULATORS, LTD.
    • TANAKA, Kei
    • C04B41/85
    • C04B41/87B01D63/066B01D67/0048B01D69/04B01D69/046B01D71/024B01D71/027B01D2323/42C04B35/46C04B35/624C04B41/009C04B41/4537C04B2111/00801C04B41/4515C04B41/457C04B41/4582C04B41/5041C04B41/5035C04B35/10C04B35/00C04B35/185C04B35/48C04B38/00
    • There is disclosed a method of manufacturing a ceramic porous membrane in which a uniform porous membrane having less coarse and large pores and less defects and having a small membrane thickness can be obtained with less membrane formation times. There is disclosed a method of manufacturing a ceramic porous membrane in which a ceramic porous membrane is formed on inner wall surfaces of through holes of a cylindrical or lotus root-like porous base member. A porous base member 1 is installed so as to arrange the through holes of the base member in a vertical direction, a ceramic sol liquid 5 having a temperature difference of 50°C or less between the ceramic sol liquid and the porous base member 1 is supplied to the inner wall surface of the porous base member 1, the liquid supply is stopped at a stage where the ceramic sol liquid 5 is in excess of an upper end portion of the porous base member 1, and the ceramic sol liquid 5 is extracted from the downside of the porous base member 1. Subsequently, after the ceramic sol liquid 5 is completely extracted, a pressure difference is created so that a pressure on the side of an outer peripheral surface of the porous base member 1 is lower than that on the side of the inner wall surface of the porous base member 1.
    • 公开了一种制造陶瓷多孔膜的方法,其中可以获得具有较少的粗孔和较大的孔以及较少的缺陷并且具有较小的膜厚度的均匀的多孔膜,而较少的膜形成时间。 公开了一种制造陶瓷多孔膜的方法,其中陶瓷多孔膜形成在圆柱形或莲藕状多孔基材的通孔的内壁表面上。 安装多孔基材1以使基材的通孔沿垂直方向布置,陶瓷溶胶液和多孔基材1之间的温差为50℃以下的陶瓷溶胶液5为 供给到多孔基材1的内壁面,在陶瓷溶胶液5超过多孔性基材1的上端部的阶段停止液体供给,并且提取陶瓷溶胶液5 接着,在陶瓷溶胶液5完全抽出之后,产生压力差,使得多孔基材1的外周面的压力低于多孔基材1的外周面的压力 多孔基材1的内壁表面的一侧。