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    • 6. 发明授权
    • Method and apparatus for filtering gases containing fine particles and
cleaning a filter cloth of collected particles
    • 用于过滤含有微粒子的气体和清洁收集颗粒的滤布的方法和装置
    • US4486201A
    • 1984-12-04
    • US437684
    • 1982-10-29
    • Haruo Noguchi
    • Haruo Noguchi
    • B01D46/00B01D46/04B01D46/24B01D46/52
    • B01D46/2411B01D46/0043B01D46/0068B01D46/0079B01D46/521
    • A filter cake cleaning method in a process for filtering gases containing fine particles, as well as a device for practicing the filter cake cleaning method. A filter cake adhering to a filter cloth is cleaned off by passing an overall amplified high-speed gas flow along the primary or outer side of the filter cloth parallel to the filter cloth surface on which the filter cake forms, the surface serving as the wall of a gas passage. A device emits a jetted stream into a collecting vessel at an open space upstream of a gas passage for entraining gas existing in the collecting vessel and for forming the overall amplified high pressure gas, and is controlled by a single automatic open/close valve. A device provided on the secondary or inner side of the filter cloth for jetting backwashing air can be used in conjunction with the above cleaning operation to enhance the cleaning effect.
    • 在用于过滤含有微粒的气体的过程中的滤饼清洁方法以及用于实施滤饼清洁方法的装置。 粘附在滤布上的滤饼通过使滤布平行于滤饼形成的滤布表面的整个放大的高速气流沿着滤布的主面或外侧被清除,表面用作壁 的气体通道。 一种装置在气体通道上游的开放空间将收集容器发射到收集容器中,用于夹带存在于收集容器中的气体并形成整个放大的高压气体,并由单个自动开/关阀控制。 设置在滤布的二次侧或内侧的用于喷射反洗空气的装置可以与上述清洁操作一起使用,以增强清洁效果。