Pulse electric field activated dry-type calcium-spraying flue gas desulfurization method and apparatus

A pulsed electric field and desulfurization device technology, applied in the field of environmental engineering, can solve the problems of insufficient utilization of desulfurizers, lower Ca/S ratio, and high operating costs, achieve simple and easy installation and actual operation, reduce residence time, and energy consumption. low effect

Inactive Publication Date: 2009-05-20
JIANGSU UNIV
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of low desulfurization rate, high Ca/S ratio, insufficient utilization rate of desulfurizer and high operating cost in charged dry absorbent injection desulfurization technology (CDSI), and provide Pulse electric field a

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
  • Pulse electric field activated dry-type calcium-spraying flue gas desulfurization method and apparatus
  • Pulse electric field activated dry-type calcium-spraying flue gas desulfurization method and apparatus
  • Pulse electric field activated dry-type calcium-spraying flue gas desulfurization method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] Describe the specific embodiment of the present invention in detail below in conjunction with technical scheme and accompanying drawing description

[0041] The pulse electric field activation dry calcium spray flue gas desulfurization process in the pipeline is as follows: figure 1 Shown, the desulfurizer Ca(OH) 2 In the injection feeding unit, spray it into the flue gas conveying pipeline 4 after the primary dust collector 1 (before the secondary dust collector 5) at high speed and contain SO 2 The flue gas is mixed, and then the Ca(OH) 2 with SO in flue gas 2 The reaction produces CaSO 3 and a small amount of CaSO 4 The particulate matter is then removed by the secondary dust removal equipment at the rear, so as to achieve the removal of SO in the flue gas 2 the goal of.

[0042] step 1: figure 1 , figure 2 The high-voltage pulse plasma power source 11 applies a high-voltage pulse voltage to the needle-shaped discharge electrodes 13, 14, and 15 in the pipeli...

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

PropertyMeasurementUnit
Granularityaaaaaaaaaa
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention relates to a pulsed electric field dry type calcium-spraying flue gas desulfurization method and a device, which belong to the technical field of environmental engineering. In the method, Ca(OH)2 is used as a desulphurizer, is sprayed into a flue gas conveying pipe (in front of the second level dust collector) behind the first level dust collector at a high speed in a spraying unit and is mixed with the flue gas containing SO2; under the action of a high pressure pulsed electric field applied in the flue gas conveying pipe, the Ca(OH)2 reacts with the SO2 in the flue gas to generate CaSO3 and small amount of CaSO4 particulate matters; and then the CaSO3 and the CaSO4 particulate matters are removed by the second level dust collector so as to achieve the aim of removing the SO2 from the flue gas. The pulsed electric field dry type calcium-spraying flue gas desulfurization system in the conveying pipe is helpful to clean out superfine dust (PM10, the grain size is less than or equal to 10mu m). The high pressure pulsed electric field applied in the flue gas conveying pipe plays a role of predischarging the superfine dust and is advantageous for the purification through the second level electrostatic dust collector, thus the dust purifying efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of environmental engineering, in particular to a pulse electric field activated dry-type calcium-spraying flue gas desulfurization method and device in a conveying pipeline. Background technique [0002] The flue gas of industrial boilers such as coal-fired power plants contains a large amount of SO 2 , not only pollute the atmospheric environment, but also form acid rain, which seriously damages the ecological environment. Therefore, to remove SO from flue gas 2 , to solve the pollution of the atmospheric environment and the acid rain problem, has attracted worldwide attention and attention, and has become one of the global environmental problems that need to be solved urgently. [0003] A lot of research work has been done on flue gas desulfurization technology (FGD) at home and abroad. According to the type of desulfurizer and the dry and wet state of the final product, according to the characteristics ...

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
IPC IPC(8): B01D53/81B01D53/50
Inventor 吴春笃依成武储金宇欧红香陈志刚汪松美
Owner JIANGSU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap