Coke dry quenching furnace castable used for in-suit generation of aluminium nitride, and preparation method thereof
A CDQ, in-situ generation technology, applied in the field of castables, can solve the problems of low strength, poor wear resistance, short service life, etc., and achieve good wear resistance and thermal shock stability, medium and high temperature Excellent mechanical properties and the effect of improving the mechanical properties at medium and high temperature
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0032] A castable for dry quenching coke ovens that generates aluminum nitride in situ and a preparation method thereof. With 60~65wt% mullite, 15~20wt% silicon carbide, 5~8wt% aluminum powder, 4~6wt% α-alumina micropowder, 2~4wt% silicon micropowder and 4~6wt% Calcium aluminate cement is used as raw material, and 0.1-0.3wt% of catalyst, 0.2-0.5wt% of water-proofing agent and 0.1-0.3wt% of water-reducing agent are used as additives. According to the above percentage content, firstly premix aluminum powder, aluminum-silicon alloy powder, catalyst and waterproofing agent to obtain a premix; then mix the premix, water reducer and other raw materials, and stir evenly to obtain the original Castables for dry quenching coke ovens that generate aluminum nitride.
[0033] Add 4~6wt% water of the above-mentioned raw materials to the castable for CDQ coke oven with in-situ generation of aluminum nitride prepared in this embodiment, mix evenly, vibrate casting, curing at room temperatur...
Embodiment 2
[0035]A castable for dry quenching coke ovens that generates aluminum nitride in situ and a preparation method thereof. With 55~60wt% mullite, 20~25wt% silicon carbide, 4~7wt% aluminum powder, 0.1~2wt% aluminum silicon alloy powder, 4~6wt% α-alumina fine powder, 2~4wt% % silica powder and 4~6wt% calcium aluminate cement as raw materials, with 0.1~0.3wt% catalyst, 0.2~0.5wt% water repelling agent and 0.1~0.3wt% water reducing agent as additives. According to the above percentage content, firstly premix aluminum powder, aluminum-silicon alloy powder, catalyst and waterproofing agent to obtain a premix; then mix the premix, water reducer and other raw materials, and stir evenly to obtain the original Castables for dry quenching coke ovens that generate aluminum nitride.
[0036] Add 4~6wt% water of the above-mentioned raw materials to the castable for CDQ coke oven with in-situ generation of aluminum nitride prepared in this embodiment, mix evenly, vibrate casting, curing at roo...
Embodiment 3
[0038] A castable for dry quenching coke ovens that generates aluminum nitride in situ and a preparation method thereof. With 50~55wt% mullite, 25~30wt% silicon carbide, 4~7wt% aluminum powder, 1~2wt% elemental silicon powder, 4~6wt% α-alumina micropowder, 2~4wt% Silica powder and 4~6wt% calcium aluminate cement are used as raw materials, and 0.1~0.3wt% catalyst, 0.2~0.5wt% water repelling agent and 0.1~0.3wt% water reducer are used as additives. According to the above percentage content, firstly premix aluminum powder, aluminum-silicon alloy powder, catalyst and waterproofing agent to obtain a premix; then mix the premix, water reducer and other raw materials, and stir evenly to obtain the original Castables for dry quenching coke ovens that generate aluminum nitride.
[0039] Add 4-7wt% water of the above-mentioned raw materials to the castable for CDQ coke ovens prepared in this example to generate aluminum nitride in situ, mix evenly, vibrate cast molding, maintain at roo...
PUM
Property | Measurement | Unit |
---|---|---|
Bulk density | aaaaa | aaaaa |
Flexural strength | aaaaa | aaaaa |
Compressive strength | aaaaa | aaaaa |
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