Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Coal-fired flue gas treatment apparatus and method by baking soda dry desulfurization

A technology of dry desulfurization and flue gas treatment, which is applied in the direction of combustion method, combustion product treatment, separation method, etc. It can solve the problems of poor desulfurization effect of baking soda and achieve good desulfurization effect

Inactive Publication Date: 2019-04-12
CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a coal-fired gas flue gas treatment device and method using baking soda dry desulfurization, aiming to solve the problem that the existing coal-fired gas flue gas using baking soda has a poor desulfurization effect

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
  • Coal-fired flue gas treatment apparatus and method by baking soda dry desulfurization
  • Coal-fired flue gas treatment apparatus and method by baking soda dry desulfurization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] see figure 1 as well as figure 2 , the embodiment of the present invention provides a coal-fired gas flue gas treatment device using baking soda dry desulfurization, mainly for the flue gas treatment of coal-fired gas combustion, and the coal-fired gas is specifically blast furnace gas, converter gas and coke oven gas etc., the processing device includes a gas-fired boiler 1, the gas is introduced into the gas-fired boiler 1 for combustion to generate...

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 relates to coal-fired flue gas treatment, and provides coal-fired flue gas treatment apparatus by baking soda dry desulfurization. The coal-fired flue gas treatment apparatus comprises acoal-fired gas boiler; a flue gas outlet of the coal-fired boiler communicates with a chimney through a flue gas purification treatment assembly; a coal economizer and an air preheater are arranged in the coal-fired boiler; the coal-fired flue gas treatment apparatus also comprises a baking soda adding device; and the baking soda adding device comprises a baking soda bin and a spraying pipe, wherein a feeding port of the spraying pipe communicates with the baking soda bin, a discharging port of the spraying pipe communicates with a flue of the coal-fired gas boiler, and the discharging port is positioned between a flue gas outlet of the coal economizer and a flue gas outlet of the coal-fired gas boiler. The invention further provides a coal-fired flue gas treatment method by baking soda dry desulfurization. According to the invention, baking soda is sprayed into the flue of the coal-fired gas boiler, the baking soda can be effectively decomposed by high temperature in the flue of thecoal-fired gas boiler, and sodium carbonate generated after decomposition can fully reacts with sulfur dioxide in the flue gas under a proper temperature condition, so that a purpose of desulfurization is achieved, and baking soda desulfurization efficiency can be guaranteed.

Description

technical field [0001] The invention relates to coal-fired gas flue gas treatment, in particular to a coal-fired gas flue gas treatment device and method using baking soda dry desulfurization. Background technique [0002] In recent years, many iron and steel enterprises have begun to gradually strengthen the recovery of surplus gas resources (such as blast furnace gas, converter gas, coke oven gas, etc.) for use in gas-fired boiler generator sets. According to the National Pollutant Emission Standard GB13223-2011 "Emission Standard of Air Pollutants for Thermal Power Plants", the emission concentration of sulfur dioxide from gas-fueled boilers or gas turbine units is not higher than 35mg / Nm 3 , so the flue gas desulfurization treatment of gas-fired boilers is particularly important. Although the use of baking soda dry desulfurization is currently disclosed, it is difficult for baking soda desulfurizers to effectively carry out chemical reactions in the flue to adsorb sulfu...

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): B01D53/83B01D53/50F23J15/02F23J15/00
CPCB01D53/508B01D2251/606F23J15/003F23J15/02F23J2215/20
Inventor 雷宇霆罗强余永江唐美琼刘立新韩汉平
Owner CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com