Furnace-protecting material for blast furnaces and preparation and application methods thereof
A blast furnace protection and raw material technology, applied in the blast furnace, blast furnace details, blast furnace parts, etc., can solve the problems of high TiO2, affecting the smooth slag discharge of the blast furnace, and the burden of the spray gun of the coal injection system, so as to reduce the titanium content and reduce the protection of the furnace Cost, the effect of reducing the blast furnace coke ratio
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0030] 1. Set the mass percentage as: TiO 2 40%, TFe25%, Al 2 o 3 1.5%, SiO 2 4.5%, S <0.07%, FeO 38% titanium concentrate powder is dried and screened, and the titanium concentrate powder with a particle size of <0.075mm is sent to the silo of the blast furnace coal injection system, and the rest that do not meet the particle size requirements The titanium concentrate powder is sent to the grinder to prepare titanium concentrate powder with a particle size of <0.075mm, and then sent to the hopper of the blast furnace coal injection system.
[0031] 2. Mix 7.5% of CDQ powder and 54.5% of coal powder into a mixture, heat to remove water, and grind and separate. In order to improve the combustion rate of coal powder and CDQ powder and reduce the content of unburned powder, it is required to grind coal powder and CDQ powder Finally, the particle size <0.075mm should be between 70% and 80%. Among them: CDQ powder (mass percentage): moisture 1%, ash 2%, volatile matter 4%, S...
Embodiment 2
[0037] 1. The mass percentage is TiO 2 35%, TFe25%, Al 2 o 3 1.5%, SiO 24.5%, S <0.07%, FeO 38% titanium concentrate powder is dried and screened, and the titanium concentrate powder with a particle size of <0.075mm is sent to the silo of the blast furnace coal injection system, and the rest that do not meet the particle size requirements The titanium concentrate powder is sent to the grinder to prepare titanium concentrate powder with a particle size of <0.075mm, and then sent to the hopper of the blast furnace coal injection system.
[0038] 2. Mix 8% of CDQ powder and 57% of coal powder into a mixture, heat to remove water, and grind and separate. In order to improve the combustion rate of coal powder and CDQ powder and reduce the content of unburned powder, it is required to grind coal powder and CDQ powder Finally, the particle size <0.075mm should be between 70% and 80%. Among them: CDQ powder (mass percentage): moisture content is 1.5%, ash content is 2%, volatile...
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