Joint production process of crude fuel hot charging and total heat oxygen blast furnace and vertical furnace
A technology of combined production and raw materials, applied in blast furnaces, shaft furnaces, blast furnace details, etc., can solve the problems of less bosh gas, poor pre-reduction of charge, and insufficient furnace heat in all-oxygen blast furnaces, so as to improve fuel utilization. , high emission, good quality effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0014] The combined production process of hot charging of raw materials and fuel, full thermal oxygen blast furnace and shaft furnace, the steps are:
[0015] 1) Preparations for raw material thermal charging, full thermal oxygen blast furnace and shaft furnace combined production system:
[0016] The combined production system of raw material and fuel hot charging, full thermal oxygen blast furnace and shaft furnace includes a blast furnace 1 and a gas-based shaft furnace 15; The input port is connected, the heat exchanger 3 (the heat exchanger 3 uses air as the heat exchange medium, the hot air from the heat exchanger 3 passes through the combustion air pipe 4 to the heater 13, and is used as combustion air, and the combustion air pipe 4 goes is the combustion-supporting air after heat exchange) the air output port is connected with the combustion-supporting air input port of the heater 13 by the combustion-supporting air pipe 4, and the blast furnace gas output port of the ...
Embodiment 2
[0029] Basically the same as Example 1, the difference is:
[0030] The hot charging temperatures of coke, sinter and pellets are 600°C, 700°C and 800°C respectively.
[0031] According to theoretical calculation, 3000m 3 The blast furnace uses pellets and sintered ore as raw materials, and 750°C pure oxygen (volume purity of more than 80%) is blown in from the tuyere. Its production technical indicators are as follows:
[0032] Oxygen consumption: 300Nm 3 / tHM,
[0033] Focal ratio: 150Kg / tHM,
[0034] Coal ratio: 370Kg / tHM,
[0035] Furnace top gas volume: 840Nm 3 / tHM,
[0036] Furnace top gas volume: 840Nm 3 / tHM,
[0037] Furnace top gas composition (volume): CO: 45.28%, CO 2 :35.75%, H 2 :8.35%, H 2 O: 7.1%, Others: 3.52%,
[0038] Shaft furnace fuel (volume) H 2 / CO:1.2:1,
[0039] Shaft furnace output: 750000t / a.
Embodiment 3
[0041] Basically the same as Example 1, the difference is:
[0042] The hot charging temperatures of coke, sinter and pellets are 800°C, 600°C and 700°C respectively.
[0043] According to theoretical calculation, 5000m 3 The blast furnace uses pellets and sintered ore as raw materials, and 850°C pure oxygen (volume purity of more than 80%) is blown in from the tuyere. Its production technical indicators are as follows:
[0044] Oxygen consumption: 290Nm 3 / tHM,
[0045] Focal ratio: 140Kg / tHM,
[0046] Coal ratio: 400Kg / tHM,
[0047] Furnace top gas volume: 820Nm 3 / tHM,
[0048] Top gas composition (volume): CO: 46.15%, CO 2 :33.75%, H 2 :8.35%, H 2 O: 9.1%, other 2.65%,
[0049] Shaft furnace fuel (volume) H 2 / CO: 1.1:1,
[0050] Shaft furnace output: 1200000t / a.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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