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

Outside-furnace denitration system and method for breaking constraints of chemical bonds

A chemical bond and denitrification technology, which is applied in the field of flue gas denitrification treatment, can solve the problems of low out-of-stock efficiency and achieve the effects of increased Brownian motion speed, large molecular potential energy, and increased molecular potential energy

Pending Publication Date: 2019-08-13
启明星宇节能科技股份有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention proposes an out-of-furnace denitrification system and method that breaks the shackles of chemical bonds, aiming to solve the problem of low denitrification efficiency of the existing destocking system

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
  • Outside-furnace denitration system and method for breaking constraints of chemical bonds
  • Outside-furnace denitration system and method for breaking constraints of chemical bonds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] a): Add a denitration agent with a concentration ratio of 20% to the interior of the denitration agent storage tank 2, and add ammonia water to the interior of the steam boiler 3 at the same time, start the steam boiler 3 to produce high-temperature and high-pressure water vapor and high-temperature ammonia at a temperature of 190°C , the denitration agent, the high temperature and high pressure water vapor and the high temperature ammonia gas are transported to the inside of the denitration agent nozzle 4 through the denitrification agent delivery pump 21 and the steam delivery pump 31 respectively;

[0053] b): The denitrification agent nozzle 4 sprays the denitrification agent, high temperature and high pressure water vapor and high temperature ammonia into the interior of the denitrification agent inlet pipe 11 and the interior of the denitrification agent outlet pipe 12 at the same time. 3 The flue gas 5 of the coal-fired boiler enters the interior of the buffer tan...

Embodiment 2

[0056] a): Add a denitration agent with a concentration ratio of 20% to the interior of the denitration agent storage tank 2, and add ammonia water to the interior of the steam boiler 3 at the same time, start the steam boiler 3 to produce high-temperature and high-pressure water vapor and high-temperature ammonia at a temperature of 200°C , the denitrification agent, high temperature and high pressure water vapor and high temperature ammonia gas are transported to the interior of the denitrification agent nozzle 4 through the denitrification agent transfer pump 21 and the steam transfer pump 31 respectively;

[0057] b): The denitrification agent nozzle 4 injects the denitrification agent, high temperature and high pressure water vapor and high temperature ammonia into the interior of the denitrification agent inlet pipe 11 and the interior of the denitrification agent outlet pipe 12 at the same time. 3 The flue gas 5 of the coal-fired boiler is passed into the interior of the...

Embodiment 3

[0060] a): Add a denitration agent with a concentration ratio of 20% to the interior of the denitration agent storage tank 2, and add ammonia water to the interior of the steam boiler 3 at the same time, start the steam boiler 3 to produce high-temperature and high-pressure water vapor and high-temperature ammonia at a temperature of 210°C , the denitrification agent, high temperature and high pressure water vapor and high temperature ammonia gas are transported to the interior of the denitrification agent nozzle 4 through the denitrification agent transfer pump 21 and the steam transfer pump 31 respectively;

[0061] b): The denitration agent nozzle 4 sprays the denitration agent, high temperature and high pressure water vapor and high temperature ammonia gas into the denitration agent inlet pipe 11 and the denitration agent outlet pipe 12 at the same time, and at the same time, 150000m3 of coal-fired boiler flue gas 5 is discharged from the buffer tank 1 The inlet channel lea...

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 provides an outside-furnace denitration system and method for breaking constraints of chemical bonds. The system comprises a buffering tank, a denitrifying agent storing tank, a steam boiler and a denitrifying agent spraying nozzle, wherein the denitrifying agent storing tank is connected with the buffering tank, the steam boiler is connected with the buffering tank and used for manufacturing high-temperature high-pressure vapor and high-temperature ammonia gas, the inlet end of the denitrifying agent spraying nozzle is connected with the denitrifying agent storing tank and the steam boiler, the outlet end of the denitrifying agent spraying nozzle is connected with the buffering tank, and the denitrifying agent spraying nozzle is used for receiving a denitrifying agent and spraying the denitrifying agent into the buffering tank through a denitrifying spraying nozzle central pipe and receiving the high-temperature high-pressure vapor and high-temperature ammonia gas and spraying the high-temperature high-pressure vapor and high-temperature ammonia gas into the buffering tank through a denitrifying spraying nozzle outer layer so that the denitrifying agent can be atomized by the high-temperature high-pressure vapor into high-temperature high-pressure fine mist when being sprayed out and the fine mist can make sufficient contact with smoke of a coal-fired boiler forchemical reduction reaction. By means of the outside-furnace denitration system and method for breaking the constraints of the chemical bonds, the problem that an existing denitration system is low indenitration efficiency is solved.

Description

technical field [0001] The invention relates to the technical field of flue gas denitrification treatment, in particular to an out-of-furnace denitrification system and method that breaks the bondage of chemical bonds. Background technique [0002] Coal-fired boilers are widely used in the north. Coal-fired boilers emit a large amount of flue gas during use. The pollutants in the flue gas mainly come from the SO produced by the combustion of coal powder and coke powder. 2 , CO and NO X , These pollutants enter the ambient air to cause pollution, and catalytic reduction or activated carbon adsorption catalytic method is often used for denitrification. [0003] However, the efficiency of the traditional denitrification system is only about 78%, resulting in an increase in the consumption of denitrification agents. At the same time, the phenomenon of ammonia escape is very serious. 3 ;Sulfur dioxide 35mg / m 3 ; Nitrogen oxide 50mg / m 3 ), traditional SNR and SNCR denitrificat...

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): B01D53/78B01D53/56B01D53/79
CPCB01D53/78B01D53/56B01D53/79B01D2258/0283
Inventor 张久明
Owner 启明星宇节能科技股份有限公司
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