1. Application in high temperature industry. Nano - aerogel insulation felt is the best choice for equipment that requires insulation while also requiring small volume and light weight. Such as steel ladles, torpedo cans, tundish and the like in the metallurgical industry, the expansion increment of the equipment can be realized by utilizing the nano aerogel thermal insulation felt on the premise of not changing the steel structure, and meanwhile, good thermal insulation effect can be achieved. In a steel plant 100t ladle, nano aerogel insulation felt was used to replace the traditional insulation board. the test results are as follows.
( 1 ) Under the condition that the thickness of the heat insulation material is the same, the temperature of the outer wall of the steel ladle by using the nano aerogel heat insulation felt is reduced by 100 - 130 compared with the temperature of the outer wall of the steel ladle by using the traditional heat insulation board, so that the thermal deformation of the steel ladle shell is effectively reduced.
( 2 ) Under the condition of the same temperature of the outer wall of the ladle, 20 mm thick nano aerogel insulation felt can replace 30 mm thick traditional insulation board, realize the expansion of the ladle
( 3 ) Using nano aerogel insulation felt, the temperature of molten steel in the ladle is obviously slow, which is beneficial to the stability of the temperature of molten steel.
( 4 ) It has good chemical stability, no decomposition, no deterioration and no pulverization after repeated use.
2. The development and application prospect of nano aerogel insulation felt. Because that production proces of the nano aerogel thermal insulation felt adopts hydraulic compression mol, fiber composite aerogel thermal insulation products with different shapes can be produce by adopting different grinding tools according to requirements, and the nano aerogel thermal insulation felt is applied to different fields. At that same time, accord to the requirements of different temperature, heat insulation materials used at different temperatures are produce. The material for producing the nano aerogel thermal insulation felt does not contain harmful substances, is an environment-friendly material, and can be applied to thermal insulation of household appliance products. Due to the good thermal insulation performance of the nano aerogel thermal insulation felt, the thickness of the thermal insulation material can be greatly reduced in use, so that household appliance products are smaller and more energy - saving. Compared with the traditional thermal insulation material, the porous nano aerogel thermal insulation material with excellent performance at the temperature of 350 - 1000 deg c has lighter weight, smaller volume and thinner thickness. The development of flexible aerogel thermal insulation felt can be applied to heat insulation systems such as pipelines, aircraft, automobiles and the like. Aerogel composite thermal insulation materials can be used in aerospace, petrochemical and other important fields due to their super thermal insulation properties. In a word, the development and application of aerogel insulation composites will have a broad prospect. At present, aerogel thermal insulation materials are expensive. with the development of modern preparation technology, the cost is further reduced, and its application field will be more and more extensive. The development and application of aerogel thermal insulation materials with different fields, different forms and different properties will be the future development direction.