Air diffuser and flushing method thereof
US6843470B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2001 |
| Grant date | Jan 18, 2005 |
| Priority date | — |
| Expiry date | Nov 26, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/70
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An air diffuser (2) having a diffuser tube (5) immersed sidewardly in a tank (1), a flushing pipe (9) opening at its tip an outlet (11) at an upper position of the diffuser tube, and a flushing valve (12) disposed in the flushing pipe (9). The diffuser tube (5) is made up of a main pipe (6) communicated at its basal end to an air supply source (8) and communicated at its tip to the flushing pipe (9), and a plurality of branch pipes (7) being communicated to the main pipe (6) and opening at their tip as a blowhole (10) at a lower position of the main pipe (6). During air diffusion, air is supplied from the air supply source (8) with tile flushing valve (12) closed, and the air is diffused from the blowholes (10). During flushing, air is supplied from the air supply source (8) with the flushing valve (12) opened and an intra-tank mixed liquor is sucked from the openings of the diffuser tube (5), thereby flushing the inside of the diffuser tube (5) with the sucked intra-tank mixed liquor. The intra-tank mixed liquor is then joined with air to come off together from the outlet (11) of the flushing pipe (9). Air diffusion from the blowholes (10) and the flushing of the diffuser tube (5)…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.