Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Integral blast furnace combined circulation method

A combined cycle, blast furnace technology

Inactive Publication Date: 2003-08-06
CENT IRON & STEEL RES INST +1
View PDF0 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Energy-saving technologies such as blast furnace gas power generation, blast furnace gas residual pressure recovery (TRT), and blast furnace hot blast stove waste heat recovery have been widely used. However, the application of these technologies is independent of each other and lacks a unified plan. The confinement of the target failed to change the iron-centered appearance of the blast furnace (Zhao Pei, Jiang Hanhua, "Analysis of Iron and Steel Metallurgy Energy Technology", Beijing: Metallurgical Industry Press, 2002)
[0006] Recently, IGCC-Integrated Gasification Combined Cycle (IGCC-Integrated Gasification Combined Cycle) has been developed internationally. It combines coal gasification technology with efficient combined cycle power generation technology. As a result, the power generation efficiency of coal is significantly improved. X and NO X The emissions are greatly reduced, and its disadvantage is that the cost of power generation is relatively high, and it is difficult to promote it on a large scale (Duan Liqiang, Lin Rumou, Jin Hongguang, Cai Ruixian

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
  • Integral blast furnace combined circulation method
  • Integral blast furnace combined circulation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Adopt the method described in the present invention, in the blast furnace of 300 cubic meters and its subsidiary figure 1On the corresponding supporting device shown, according to its technological process, three overall blast furnace combined cycle tests were carried out, namely, blast furnace iron smelting, gas and steam combined cycle power generation, and oxygen production were carried out simultaneously and interactively cycled. The composition, gas volume and gas outlet temperature of the crude gas produced by blast furnace ironmaking are shown in Table 1. The crude gas becomes clean gas after dedusting at medium temperature, and then it is cooled down. The dust content of the dedusted gas and the temperature of the cooled gas are listed in Table 3. After the clean gas cools down, part of it enters the hot blast stove, and the other part enters the gas compressor, and then enters the combustion chamber of the gas turbine for combustion. The high-temperature and hi...

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 present invention mainly relates to blast furnace ironmaking, power generation and oxygen generation. It is characterized by that in the blast furnace ironmaking system the oxygen-making system and combined circulation power generation system are integrated. The gas produced by smelting iron with blast furnace is undergone the processes of removing dust, cooling and compression and fed into combustino chamber of gas turbine to make combustion , then the high temp. gas produced by combustion is expanded, and can be used for driving gas turbine and making it apply work to drive power generator to generate power, and the high-temp. waste gas discharged by gas turbine and combustion waste gas of air-stove can be fed into waste heat boiler, and the produced steam can be used for driving steam turbine and making it apply work to drive power generator to generate power.

Description

technical field [0001] The invention belongs to the field of metallurgy and energy, and mainly relates to blast furnace ironmaking, power generation and oxygen production. Background technique [0002] Although some achievements have been made in the development of non-blast furnace ironmaking technology in the world, according to the forecast of metallurgical experts, blast furnace will still play a leading role in ironmaking production for a long time to come. The continuous advancement of blast furnace technology represented by oxygen-enriched coal injection and fine materials has further consolidated the status of blast furnaces. [0003] In order to save precious coking coal resources and reduce environmental pollution in the coking process, the international community attaches great importance to the development and promotion of blast furnace oxygen-enriched coal injection technology. Instead, increase the amount of coal injection by increasing the blast temperature, ...

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): C21B5/00
Inventor 尹建威蔡宁生齐渊洪李宇红张春霞李振山
Owner CENT IRON & STEEL RES INST
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
Eureka Blog
Learn More
PatSnap group products