Unlock instant, AI-driven research and patent intelligence for your innovation.

Co-processing system for sulfur dioxide in exhaust gas, dust and wastewater of thermal power plant

A technology for sulfur dioxide and co-processing, which is applied in gas treatment, chemical instruments and methods, and the use of liquid separation agents to achieve the effect of reducing water consumption, energy consumption and investment.

Pending Publication Date: 2017-07-07
CHINA HUADIAN ENG +1
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The system adopts a two-stage desulfurization process combining semi-dry method and wet method, which solves the problems of flue gas desulfurization, dust removal and wastewater discharge in thermal power plants. The process is simple, the technology is reliable, the investment is small, the operating cost and energy consumption are low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Co-processing system for sulfur dioxide in exhaust gas, dust and wastewater of thermal power plant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 of the present invention: as figure 1 As shown, this kind of sulfur dioxide, dust and wastewater collaborative treatment system includes a primary absorption tower 1, a dust collector 4, a secondary absorption tower 6, a secondary absorbent slurry tank 7, a wastewater collection tank 8, and a primary desulfurizer silo 9 and chimney11. The primary absorption tower 1 is a semi-dry desulfurization tower, and the top outlet of the primary absorption tower 1 is connected with the dust collector 4, the secondary absorption tower 6, and the chimney 11 in sequence through the flue. A Venturi device 2 is also provided at the bottom of the primary absorption tower 1, and the boiler air preheater 10 is connected to the Venturi device 2 through a flue. A humidification water inlet 15 and a primary absorbent inlet 16 are provided on the side of the primary absorption tower 1 . The humidification water inlet 15 of the primary absorption tower 1 is provided with a rotar...

Embodiment 2

[0031] Embodiment 2: as figure 1 As shown, the co-processing system of flue gas sulfur dioxide, dust and wastewater in thermal power plants includes a primary absorption tower 1, a dust collector 4, a secondary absorption tower 6, a secondary absorbent slurry tank 7, a wastewater collection tank 8, and a primary desulfurization Agent silo 9 and chimney 11. The primary absorption tower 1 is a semi-dry desulfurization tower. The side of the primary absorption tower 1 is provided with a humidifying water inlet 15 and a primary absorbent inlet 16. The humidifying water inlet 15 is connected to the waste water collection tank 8 through a pipeline, and the primary absorbent inlet 16 It is connected to the primary desulfurizer silo 9 through pipelines. The primary desulfurizer silo 9 stores the primary absorbent slaked lime powder and is transported into the primary absorption tower 1 through the fluidization wind through the primary absorbent inlet 16 . The top outlet of the prima...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a co-processing system for sulfur dioxide in exhaust gas, dust and wastewater of a thermal power plant and belongs to the technical field of exhaust gas treatment of the thermal power plant. A humidifying water inlet (15) and a first-level absorbent inlet (16) are formed in a side wall of a first-level absorbing tower (1) in a system; the humidifying water inlet (15) is connected with a wastewater collecting tank (8) through a pipeline; the first-level absorbent inlet (16) is connected with a first-level desulfurizer bin (9) through the pipeline; the top of the first-level absorbing tower (1) is connected with a dust remover (4), a second-level absorbing tower (6) and a chimney (11) in turn through a flue; the middle part of the second-level absorbing tower (6) is connected with a second-level absorbent slurry tank (7) through a pipeline; the bottom of the second-level absorbing tower (6) is connected with the wastewater collecting tank (8) through a pipeline. A desulfuration technology combining semi-dry process and wet process is adopted by the system, the problems of exhaust gas desulfurization, de-dusting and wastewater draining of the thermal power plant are solved, the structure is simple and the energy consumption and the running cost are reduced.

Description

technical field [0001] The invention relates to a system for synergistic treatment of sulfur dioxide, dust and waste water in flue gas of a thermal power plant, and belongs to the technical field of flue gas treatment in thermal power plants. Background technique [0002] At present, for the control of sulfur dioxide in the flue gas of thermal power plants, the string tower technology in wet desulfurization is mostly used; for dust emission, low-temperature dust removal technology is mostly used to reduce the flue gas temperature and improve the dust collector technology. Judging from the operation effect, although the goal of ultra-clean emission has been achieved, there are still the following problems in the operation process: [0003] 1) Wet desulfurization technology has the problems of high energy consumption, complex process, and single desulfurization adjustment method, especially in the process of wet desulfurization, which produces a large amount of desulfurization...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/75B01D53/78B01D53/80B01D53/50B01D50/00B01D47/10
CPCB01D47/10B01D50/00B01D53/50B01D53/502B01D53/75B01D53/78B01D53/80B01D2251/604B01D2251/404B01D2258/0283B01D2257/302B01D2257/2047B01D2257/2045
Inventor 刘德林王云汪洋付丽辉
Owner CHINA HUADIAN ENG