Method for zero discharge treatment of desulfurization wastewater suitable for multiple working conditions
US12409414B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2022 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Mar 4, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23J2219/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A desulfurization wastewater zero discharge treatment method and system suitable for multiple working conditions. A tail flue of a boiler and a bottom outlet of a wastewater drying tower are both communicated with an inlet of a dust collector; an outlet of the dust collector is communicated with flue gas inlets of a wastewater concentration tower and a desulfurization absorption tower; the wastewater concentration tower is communicated with the desulfurization absorption tower; the desulfurization absorption tower is communicated with a chimney; the desulfurization absorption tower is communicated with a gypsum cyclone; the gypsum cyclone is communicated with a filtrate water tank; the gypsum cyclone is communicated with a gypsum dewatering machine; the gypsum dewatering machine is communicated with a gas liquid separating tank; and a flue gas port of the tail flue of the boiler is communicated with the flue gas inlet of the wastewater drying tower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.