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Ceramic material, ceramic heat exchange tube as well as preparation method thereof and ceramic reboiler
The invention discloses a ceramic material, a ceramic heat exchange tube as well as a preparation method and a ceramic reboiler. The ceramic material comprises the following components in percentage by mass: 5-10% of metallic silicon, 60-70% of silicon carbide, 10-15% of silicon dioxide, 10-15% of binding clay and 0.2-1% of lignin. The ceramic heat exchange tube disclosed by the invention has normal temperature compression strength of 35-50MPa, can resist a pressure of 0.7-0.9MPa under the working condition that the temperature is lower than 300 DEG C and heating oil flows in the tube, cannot have a seepage condition, is strong in corrosion resistance, and has good corrosion resistance to high-temperature gases and liquid of hydrochloric acid, sulfuric acid and the like; silicon dioxide is used for forming an enamel layer to seal air holes, thereby solving the problem of seepage of a common SiC material; and the ceramic heat exchange tube has the advantages of high-temperature resistance, quick heat conduction, corrosion resistance and seepage resistance, is durable in various environments, and is long in service life and suitable for popularization and application.
Ceramic material, ceramic heat exchange tube as well as preparation method thereof and ceramic reboiler
The invention discloses a ceramic material, a ceramic heat exchange tube as well as a preparation method and a ceramic reboiler. The ceramic material comprises the following components in percentage by mass: 5-10% of metallic silicon, 60-70% of silicon carbide, 10-15% of silicon dioxide, 10-15% of binding clay and 0.2-1% of lignin. The ceramic heat exchange tube disclosed by the invention has normal temperature compression strength of 35-50MPa, can resist a pressure of 0.7-0.9MPa under the working condition that the temperature is lower than 300 DEG C and heating oil flows in the tube, cannot have a seepage condition, is strong in corrosion resistance, and has good corrosion resistance to high-temperature gases and liquid of hydrochloric acid, sulfuric acid and the like; silicon dioxide is used for forming an enamel layer to seal air holes, thereby solving the problem of seepage of a common SiC material; and the ceramic heat exchange tube has the advantages of high-temperature resistance, quick heat conduction, corrosion resistance and seepage resistance, is durable in various environments, and is long in service life and suitable for popularization and application.
Ceramic material, ceramic heat exchange tube as well as preparation method thereof and ceramic reboiler
ZHAI YANJUN (author)
2015-04-22
Patent
Electronic Resource
English
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