Novel super heat conduction ceramic film composite material and preparation method thereof

Abstract

The invention discloses a novel super heat conduction ceramic film composite material and a preparation method thereof, and belongs to the technical field of wave absorption function materials. The composite material is prepared from the following raw materials in parts by weight: 20 to 25 parts of fast soluble sodium silicate, 28 to 32 parts of crystal silicon, 4 to 8 parts of nanometer magnesia,13 to 17 parts of carbon fiber, 2 to 5 parts of boron fiber, 2 to 5 parts of silicic acid fiber, 8 to 12 parts of aluminum oxide powder and 23 to 28 parts of deionized water. The obtained material covers the surface of metal to isolate the metal from external media so as to block external high-temperature oxygen and corrosive substances; the metal pipe wall is effectively protected; the wave absorption performance is obvious; infrared radiation is generated; a good energy saving effect is achieved; the material is applied to the field of boilers; the energy is saved; the environment is protected; the operation of the boiler is safe; the boiler friction pipe blasting is reduced; the boiler hearth coking is reduced; the service life of the boiler is prolonged.

Description

technical field [0001] The invention relates to the technical field of wave-absorbing functional materials, in particular to a new superconducting heat-conducting porcelain film composite material and a preparation method thereof. Background technique [0002] With the continuous development of society, the types of boilers are also increasing rapidly, such as coal-fired boilers in power plants, fluidized bed boilers, cracking furnaces in Sinopec, steam injection boilers in PetroChina, vacuum heating furnaces, etc. The wear and corrosion of these boilers also revealed the degree of damage to the surface of the water wall of the boiler. During the operation, due to the variety and quality of the fuel, the high temperature corrosion and wear of the boiler caused the tube wall to be significantly thinned, and a tube burst accident occurred. Seriously affect the safe operation of the boiler, and the thermal efficiency of the boiler will also be significantly reduced after long-t...

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Problems solved by technology

The wear and corrosion of these boilers also revealed the degree of damage to the surface of the water wall of the boiler. During the operation, due to the variety and quality of the fuel, the high temperature corrosion and wear of the boiler caused the tube wall to be significantly thinned, and a tube burst accident occurred. Seriously affect the safe operation of the boiler, and the thermal efficiency of the boiler will also be significantly reduced after long-term use, especially when the flue gas with a large concentration directly washes the tube wall, the pyrite powder in the fuel will stick together with the unburned fuel. On the pipe wall, it is decomposed by heat to generate elemental sulfur and iron sulfide. Hydrogen sulfide and sulfur dioxide adhere to the pipe wall, which will sulfide the metal pipe wall and severely corrode the metal pipe wall.