Device for using high-temperature converter gas and increasing heat value and use method of device

A converter gas, high temperature technology, applied in the field of steelmaking converter gas utilization, can solve the problems of safety hazards, low CO concentration, high-temperature converter gas chemical reaction heat application effect is not very good, etc., to achieve the effect of simple and easy method

Inactive Publication Date: 2018-10-26
ANGANG STEEL CO LTD
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two methods of converter gas purification, cooling, and CO enrichment have solved the problems of high temperature converter gas, high temperature, dust, and low CO concentration. However, there are still certain problems. N 2 As a carrier gas, it affects the purity of the purified converter gas. At the same time, the gas reaction is too intense, which brings safety hazards, and the use of CO 2 CO e

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
  • Device for using high-temperature converter gas and increasing heat value and use method of device
  • Device for using high-temperature converter gas and increasing heat value and use method of device
  • Device for using high-temperature converter gas and increasing heat value and use method of device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The converter gas generated from the converter reaches the carbon loss reactor 4 through the movable hood 2 and the fixed flue 3. The initial converter gas flow rate is 11.5m / s, the flue gas temperature measured by infrared temperature is 1552°C, and the CO concentration in the converter flue gas 53%, then carbon loss reaction occurs in the carbon loss reactor 4, the length of the carbon loss reactor 4 is 11.2m, the degree of 8 built-in cokes is 40mm, the diameter of the carbon loss reactor 4 is 3m, and the temperature is reduced to 850°C. Then it is discharged through the water-cooled elbow 5 and subjected to subsequent dust removal treatment. The flue gas at the outlet was analyzed, the CO concentration in the outlet flue gas rose to 82%, and the CO 2 The concentration dropped to 2.1%.

Embodiment 2

[0027] The converter gas generated from the converter reaches the carbon loss reactor 4 through the movable hood 2 and the fixed flue 3. The initial converter gas flow rate is 17m / s, the flue gas temperature measured by infrared temperature is 1583°C, and the CO in the converter flue gas 2 Concentration is 53%, and carbon loss reaction takes place in carbon loss reactor 4 then, and this carbon loss reactor 4 is long 12m, and built-in coke, machine-pressed charcoal average size are 53mm, and carbon loss reactor 4 diameter is 2m, and temperature drops to 912°C, and then discharged through the water-cooled elbow 5 for subsequent dust removal treatment. The flue gas at the outlet was analyzed, and the concentration of CO in the flue gas at the outlet rose to 81%. 2 The concentration dropped to 3.2%.

Embodiment 3

[0029] The converter gas generated from the converter reaches the carbon loss reactor 4 through the movable hood 2 and the fixed flue 3. The initial converter gas flow rate is 20 m / s, the flue gas temperature measured by infrared temperature is 1534 °C, and the CO concentration in the converter flue gas is 55%, and then a carbon loss reaction occurs in the carbon loss reactor 4, the carbon loss reactor is 14m long, the average size of the built-in semi-coke is 44mm, the diameter of the carbon loss reactor 4 is 5m, the temperature is reduced to 875 ° C, and then The water-cooled elbow 5 is discharged and subjected to subsequent dust removal treatment. The flue gas at the outlet was analyzed, the CO concentration in the outlet flue gas rose to 88%, and the CO 2 The concentration drops to 4.5%.

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 a device for using high-temperature converter gas and increasing the heat value. The device comprises a movable flue gas hood, a fixed flue, a carbon loss reactor, a water-cooling elbow and a dust removal tank; the movable flue gas hood is arranged above a converter; one end of the fixed flue is connected with the movable flue gas hood; the other end of the fixed flue is connected with the carbon loss reactor; the lower end of the carbon loss reactor is connected with the water-cooling elbow; the dust removal tank is arranged below the water-cooling elbow; a flue gas analysis meter is arranged at the tail of the water-cooling elbow; the carbon loss reactor is filled with one or more of coke, machine-pressed charcoal and semi-coke with the lumpiness not lower than 10 mm; and valves are mounted at the upper end and the lower end of the carbon loss reactor. A method is simple and easy to implement, the carbon loss reactor, is arranged on the basis of an original gasification cooling pipeline, the temperature of the high-temperature converter gas is reduced from 1,500-1,600 DEG C to 800-950 DEG C by the aid of the carbon loss reaction absorbing a large quantityof heat, meanwhile, CO is enriched, the content of CO in the converter gas is increased from 50%-70% to more than 80%, and subsequent application is facilitated.

Description

technical field [0001] The invention relates to the technical field of steelmaking converter gas utilization, in particular to a device for utilizing high-level converter gas and increasing the calorific value of the gas and a method for using the gas. Background technique [0002] During converter steelmaking, the 1500°C high-temperature flue gas generated is cooled to 850°C--1000°C by the gasification cooling flue and then enters the evaporative cooler. After coarse dust removal, it enters the electrostatic precipitator for fine dust removal. The working principle of the traditional steam dust removal is: the working principle of the evaporative cooler in the converter gas dry purification recovery system is to send water and gas to a specific two-phase flow nozzle in a certain proportion, and atomize it into fine steam-water mixture particles. Spray directly into the evaporative cooler, absorb heat and evaporate quickly, so that the high-temperature flue gas is cooled ra...

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): C21C5/40
CPCC21C5/40C21C2100/02Y02P10/25
Inventor 廖相巍任伟李金莲王亮韩子文张立国张伟王再义童晓宇邓伟
Owner ANGANG STEEL CO 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