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Distributed energy system based on blast furnace ironmaking

A distributed energy, blast furnace ironmaking technology, applied in blast furnaces, blast furnace details, blast furnace parts and other directions, can solve problems affecting the development and progress of the iron and steel industry, energy waste and other issues

Active Publication Date: 2017-06-30
HUATIAN ENG & TECH CORP MCC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, iron and steel plants have been focusing on the optimization and upgrading of each production process itself, and the improvement of the capacity and scale of process equipment. waste, and even affected the development and progress of the steel industry

Method used

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  • Distributed energy system based on blast furnace ironmaking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 As shown, the distributed energy system based on blast furnace ironmaking in this embodiment includes blast furnace 1, gas purification device 2, gas turbine 3, gas cabinet 4, gas compressor 5, combustion chamber 6, air compressor 7, gas turbine 8, Waste heat boiler 9, first flue gas-water heat exchanger 10, first chimney 11, transmission clutch 12, blast furnace blower 13, first gear box 14, electric motor 15, second gear box 16, steam turbine 17, generator 18 , condenser 19, condensate pump 20, hot water absorption refrigeration unit 21, air dehumidification device 22, circulating water pump 23, hot blast stove 24, second flue gas-water heat exchanger 25, second chimney 26, blast furnace Slag waste heat recovery device 27, hot water main pipe 28. in:

[0029] The blast furnace 1 is connected to the gas purification device 2, the gas turbine 3, the gas cabinet 4, and the gas compressor 5 sequentially through the gas pipeline. The gas purification dev...

Embodiment 2

[0047] The distributed energy system based on blast furnace ironmaking in this embodiment provides a specific waste heat boiler structure on the basis of Embodiment 1.

[0048] The waste heat boiler 9 includes a low-pressure section economizer 901, a low-pressure section drum 902, a low-pressure section evaporator 903, a feed water pump 904, a high-pressure section economizer 905, a low-pressure section superheater 906, a high-pressure section drum 907, a high-pressure High-pressure section evaporator 908, high-pressure section superheater 909 and corresponding connecting pipes, wherein, the high-pressure section superheater 909, high-pressure section evaporator 908, low-pressure section superheater 906, high-pressure section economizer 905, and low-pressure section evaporator 903 , and low-pressure section economizer 901 are arranged in sequence along the flue gas flow in the waste heat boiler. Between the low-pressure section drum 902 and the low-pressure section evaporator ...

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Abstract

The invention discloses a distributed energy system based on blast furnace ironmaking, which is mainly designed based on the joint supply of various energy forms such as cold, heat, electricity and work according to the actual energy consumption of the blast furnace ironmaking area. The invention utilizes the gas residual pressure to drive the blast furnace blower to do work through the gas turbine, utilizes the combustion chemical energy of the blast furnace gas through the gas turbine and combines the steam turbine to jointly drive the gas compressor and the air compressor, and the excess work is converted into electric energy; water is used as the The heat exchange medium recovers the sensible heat of the blast furnace slag, the waste heat of the flue gas of the hot blast stove and the waste heat of the exhaust gas of the gas turbine waste heat boiler to produce high-temperature hot water. The source improves the comprehensive energy utilization rate of the system and realizes the optimization of the thermodynamic performance of the system.

Description

technical field [0001] The invention relates to a distributed energy system based on blast furnace ironmaking. Background technique [0002] "Energy, environment, and development" are the three major themes facing human beings today. Rational development and utilization of energy is an important guarantee for environmental friendliness and sustainable human development. In the past 30 years of rapid economic development, the environmental pollution and ecological problems caused by the coal-based energy structure have caused great pressure on my country's sustainable development. The mining, transportation and utilization of coal will cause damage to land resources, damage to water resources and air pollution. How to improve the energy consumption structure and minimize environmental pollution is the key issue facing the sustainable development strategy. [0003] In response to global climate change, my country plans to reduce carbon dioxide emissions per unit of GDP by 40...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B7/00C21B9/00
CPCC21B7/00C21B9/00
Inventor 江文豪张学超姚群
Owner HUATIAN ENG & TECH CORP MCC
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