Intelligent control system of automatic optimizing combustion of hot-blast stove

An intelligent control system, a technology of hot blast stove, applied in the control of combustion, furnace, blast furnace, etc., can solve the problems of inability to change the air-fuel ratio, unsatisfactory application effect, limited life of oxygen measuring instruments, etc., to improve the level of combustion control, energy The effect of full utilization and high combustion efficiency

Inactive Publication Date: 2010-10-27
WISDRI ENG & RES INC LTD
View PDF4 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The proportional extreme value adjustment method cannot change the air-fuel ratio in time when the calorific value of the gas changes, and it is not easy to achieve the best combustion of the hot blast stove
The flue gas oxygen content cascade proportional control method uses the ratio adjustment as a rough adjustment, and the oxygen content feedback control in the flue gas as a fine ad

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
  • Intelligent control system of automatic optimizing combustion of hot-blast stove
  • Intelligent control system of automatic optimizing combustion of hot-blast stove
  • Intelligent control system of automatic optimizing combustion of hot-blast stove

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] The ratio of combustion air to mixed gas (ie, air-fuel ratio) is an important parameter in the combustion process of hot blast stoves. If the mixed gas is excessive, the combustion is insufficient. The excess gas is discharged into the atmosphere with the combustion exhaust gas, which is not only a waste but also a pollution to the atmosphere; if the mixed gas is insufficient, the top temperature of the hot blast stove cannot be guaranteed to reach the set point. Value, that is, the heat stored in the hot blast stove is insufficient to meet the normal production of the blast furnace. Therefore, how to maximize the combustion rate of coal gas under the premise of ensuring the normal production of the blast furnace is of great significance, which requires the best air-fuel ratio control. But under no circumstances should the gas be excessive. In other words, the air at the optimal air-fuel ratio is still excessive.

[0019] The rise rate of the initial vault temperature an...

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 intelligent control system of an automatic optimizing combustion of a hot-blast stove, comprising a mixed gas flow regulator (FIC-101), a vault temperature regulator (TIC-101), a combustion-supporting air flow regulator (FIC-102), a heating load regulator (QX-102), a waste gas temperature regulator (TIC-102) and an air-fuel ratio fuzzy controller. The invention can improve the combustion control level of the hot-blast stove, has high combustion efficiency, fully utilizes energy and has strong energy storage capability.

Description

Technical field [0001] The invention is used for the combustion control of the hot blast stove system of the iron-making blast furnace in the metallurgical industry. Background technique [0002] The hot blast stove is an important supporting equipment in the blast furnace ironmaking production process. Its main function is to heat the blast to the required temperature and provide high temperature hot blast to the blast furnace. The blast furnace is generally supplied by 3 to 4 hot blast stoves alternately, and the working process of each hot blast stove is a repeated process of burning and blowing. After the gas and combustion air are mixed in the burner, they are burned in the combustion chamber to produce high-temperature flue gas. The checker brick of the regenerator is the carrier of heat transfer. It absorbs heat during combustion, and transfers heat to cold air during air supply, thereby heating the cold air. [0003] In order to save energy and realize the stable and opti...

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): F23N5/00C21B9/00
Inventor 周磊马智慧
Owner WISDRI ENG & RES INC LTD
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