Sintering furnace for composite reinforcing material used for production of silicon aerogel thermal insulation felt

Abstract

The invention relates to a sintering furnace for a composite reinforcing material used for production of silicon aerogel thermal insulation felt. The sintering furnace comprises a sintering furnace body, the sintering furnace body comprises a furnace door and is internally provided with sintering brackets, heating pipes and graphite pieces, heat dissipation plates are embedded into the graphite pieces, each sintering bracket comprises a rotary support table, the rotary support tables are parallelly arranged at equal intervals through connecting rods, fan plates are arranged on the connecting rods, and each rotary support table comprises a framework and a supporting orifice plate. The sintering furnace has a simple structure. The graphite pieces can absorb excess heat, the heat can be conducted to the inside of a sintering chamber through the heat dissipation plates, and a thermal insulation function is achieved. The rotary support tables can increase the sintering amount and sinteringarea. Through the use of an electric turntable, the sintering brackets rotate at a constant speed. Through combination with the fan plates, the heat energy is uniformly distributed, the sintering furnace has the advantages of increasing the heat energy utilization and achieving energy saving, thermal insulation and uniform heat energy distribution, the sintering uniformity is ensured correspondingly, the sintering rate of the reinforcing material is increased indirectly, and the sintering effect of the reinforcing material is improved indirectly.

Description

technical field [0001] The invention relates to the field of airgel production and application, in particular to a sintering furnace for composite reinforcing materials used in the production of silicon airgel insulation blankets. Background technique [0002] Airgel is a product obtained by drying the solvent in the gel while maintaining the integrity of the gel skeleton structure. It is an amorphous low-density material with a nanoporous structure. Silica airgel, also known as "blue smoke" and "solid smoke", is the lightest solid material known so far, and it is also the material with the best thermal insulation performance so far. It is known as "the magic material that changes the world" ". [0003] Silica airgel generally has the phenomenon of low strength, high brittleness, and particle shedding. Therefore, in the production of silica airgel, certain reinforcing materials are generally added to improve its strength and brittleness defects. A small amount of composite...

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Problems solved by technology

[0003] Silica airgel generally has the phenomenon of low strength, high brittleness, and particle shedding. Therefore, in the production of silica airgel, certain reinforcing materials are generally added to improve its strength and brittleness defects.

A small amount of composite materials in the current reinforcement materials need to be sintered before use. However, the current sintering furnaces cannot fully meet the sintering requirements of the reinforcement materials. The main disadvantages are uneven distribution of heat energy, long sintering time, and poor sintering effect. Well, the sintered reinforced material not only has unstable quality, but also has high cost and high energy consumption

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