公开(公告)号：KR1020020065044A

公开(公告)日：2002-08-13

申请号：KR1020010005381

申请日：2001-02-05

Applicant: 박재구

Inventor： 박재구 ,  정영 ,  이정식 ,  박제현 ,  이태경 ,  정혜영 ,  김현중 ,  이광희

IPC: C04B38/10 ,  B01D39/20

CPC classification number: C04B38/10 ,  B01D39/2093 ,  C04B35/6261 ,  C04B35/63 ,  C04B41/50 ,  C04B2111/00793 ,  C04B2111/40

Abstract: PURPOSE: A method of manufacturing a porous ceramic filter for dust collection is provided, which is characterized in that on the surface of a filter substrate having a porosity of 80% and an average pore size of 100-200 μm, a filtering layer having the porosity of 30% and an average pore size of 1-10 μm is coated so that it is possible to increase air-permeability while having improved filtering performance. CONSTITUTION: The method of porous ceramic filter for dust collection includes the steps of (S10) mixing 100 parts by weight of inorganic powder together with 20-35 parts by weight of distilled water and 3-8 parts by weight of viscosity controller; (S20) ball-milling above mixture so as to prepare a slurry having an average diameter of 5μm and a viscosity of 80 to 2000 cp; (S30) adding 0.15-1.50 parts by weight of a foaming agent in the slurry and then agitating the mixture at over 1200 rpm until the volume of slurry foam becomes quadruple in comparison with initial slurry volume; (S40) adding 1-3 parts by weight of a gelation agent such as aqueous epoxy resin in the foamy slurry, followed by slow agitation at 600 rpm; (S50) dry-forming of the gelled slurry in the form of filter; (S60) dipping the obtained filter in the slurry of 2nd step so as to form a coat thereon; and then (S70) calcining the coated filter in a furnace up to 1100 to 1600deg.C at a rate of 1-3deg.C/min.

Abstract translation: 目的：提供一种制造用于集尘的多孔陶瓷过滤器的方法，其特征在于，在孔隙率为80％，平均孔径为100-200μm的过滤器基材的表面上，具有 涂覆30％的孔隙率和1-10μm的平均孔径，使得可以提高透气性同时具有改进的过滤性能。 构成：用于集尘的多孔陶瓷过滤器的方法包括以下步骤：（S10）将100重量份的无机粉末与20-35重量份的蒸馏水和3-8重量份的粘度控制器混合; （S20）在混合物上进行球磨，以制备平均直径为5μm，粘度为80至2000cp的浆料; （S30）在浆料中加入0.15-1.50重量份的发泡剂，然后以1200rpm的速度搅拌混合物，直到浆料泡沫的体积与初始浆料体积相比变为4倍; （S40）在泡沫状浆料中加入1-3重量份凝胶剂如水性环氧树脂，然后以600rpm缓慢搅拌; （S50）以过滤器的形式干燥成型胶凝浆料; （S60）将获得的过滤器浸渍在第二步骤的浆料中，以在其上形成涂层; 然后（S70）以1-3℃/分钟的速度在1100至1600℃的炉中煅烧涂布的过滤器。

公开(公告)号：KR2019940007469U

公开(公告)日：1994-04-15

申请号：KR2019920018254

申请日：1992-09-23

Applicant: 박재구

Inventor： 박재구

IPC: B60J3/00