Periclase-magnesium aluminate spinel refractory material for rotary cement kiln and preparation method thereof
A technology of magnesia-alumina spinel and cement rotary kiln, which is applied in the field of refractory materials for cement rotary kiln, can solve the problems of not being widely used and poor performance of hanging kiln skin, and achieve good thermal shock stability and good performance of hanging kiln skin , the effect of high temperature strength
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0020] A periclase-magnesia-alumina-spinel refractory material for cement rotary kiln and its preparation method: 15-18wt% of periclase-magnesia-alumina-spinel composite material with a particle size of 5-3mm, 30-33wt% % of periclase-magnesium aluminum spinel composite material with a particle size of 3~1mm, 15~17wt% of periclase-magnesium aluminum spinel composite material with a particle size of 1~0.088mm, 15~18wt% The periclase-magnesia-aluminum spinel composite material whose particle size is less than 0.088mm, 15~20wt% magnesia and 3~5wt% magnesia-alumina spinel are mixed to obtain a mixture, and the mixture 3~ 5wt% sulfurous acid pulp waste liquor, stirred evenly, and machine-pressed under a pressure of 180-250MPa. The molded body is dried at 110°C for 8-24 hours, and finally fired at 1550-1650°C for 4-9 hours to obtain periclase-magnesia-alumina-spinel refractories for cement rotary kilns.
[0021] In this embodiment: the phase composition of the periclase-magnesium al...
Embodiment 2
[0024] A periclase-magnesia-alumina-spinel refractory material for cement rotary kiln and its preparation method: 17-19wt% of periclase-magnesia-alumina-spinel composite material with a particle size of 5-3mm, 32-34wt% % of periclase-magnesium aluminum spinel composite material with a particle size of 3~1mm, 16~18wt% of periclase-magnesium aluminum spinel composite material with a particle size of 1~0.088mm, 18~22wt% The periclase-magnesia-alumina-spinel composite material whose particle size is less than 0.088mm, the magnesia of 10~15wt% and the magnesium-alumina spinel of 2~4wt% are mixed to obtain a mixture, and the mixture is added with 4~ 6wt% magnesium chloride aqueous solution, stirred evenly, and machine-pressed under the pressure of 150~200MPa. The molded body is dried at 110°C for 10-30 hours, and finally fired at 1500-1600°C for 9-15 hours to obtain periclase-magnesia-aluminum spinel refractories for cement rotary kilns.
[0025] In this embodiment: the phase compo...
Embodiment 3
[0028] A periclase-magnesia-alumina-spinel refractory material for a cement rotary kiln and a preparation method thereof: 35-40wt% of a periclase-magnesia-alumina-spinel composite material with a particle size of 3-1mm, 30-35wt% Periclase-magnesium-aluminum spinel composite materials with a particle size of 1~0.088mm, 15~20wt% of periclase-magnesium-aluminum spinel composite materials with a particle size of less than 0.088mm, 4~10wt% Magnesia and 0.5-3wt% magnesium-aluminum spinel are mixed to obtain a mixture, and 1-3wt% magnesium chloride aqueous solution and 2-5wt% sulfurous acid pulp waste liquid are added to the mixture and stirred evenly. Under the machine press molding. The molded green body is dried at 110°C for 20-36 hours, and finally fired at 1520-1620°C for 6-10 hours to obtain periclase-magnesia-aluminum-spinel refractories for cement rotary kilns.
[0029] In this embodiment: the phase composition of the periclase-magnesium aluminum spinel composite material is...
PUM
Property | Measurement | Unit |
---|---|---|
particle size | aaaaa | aaaaa |
particle diameter | aaaaa | aaaaa |
particle diameter | 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