| 摘要 |
PROBLEM TO BE SOLVED: To provide a dust flocculating passage of a simple structure capable of promoting the flocculation of particles in dust by increasing the number of particle collisions, thereby to reduce the particle number and to enlarge the apparent particle diameter. SOLUTION: The dust flocculating passage 10 comprises a passage 11 for a gas to pass therethrough, a wall 12 for forming the passage 11, and vortex generating means for generating vortexes in the gas flowing in the passage 11. The vortex generating means is so arranged on the inner face of the wall 12 as to give a heterogeneous velocity distribution to the gas flow near the wall 12. The vortex generating means includes either a turning portion 13 having a wall portion protruding from the inner face of the wall 12 into the passage 11 so as to turn the gas flow in the passage 11, or protrusions from the inner face of the wall 12 so as to make heterogeneous the velocity of the passing gas. COPYRIGHT: (C)2008,JPO&INPIT
|
