8868体育

Why are nano heat shields so popular ?[2016/8/31]

The energy consumption of iron and steel production accounts for about 10 % of the total energy consumption in China. energy conservation in iron and steel industry will bring fundamental benefits to the cause of energy conservation and environmental protection in the whole society. Heat insulation material is an important component of steel production equipment, which has a great impact on equipment energy consumption. Nano thermal insulation board is considered as the best known thermal insulation effect of high temperature materials, has been gradually accepted and applied in steel-making equipment, greatly reduce the surface temperature of equipment, significantly reduce the heat loss of equipment, improve product quality, improve production efficiency, reduce the production cost of steel. The thermal insulation effect of the nano thermal insulation board is 2 - 10 times of that of the traditional thermal insulation material, and the nano thermal insulation board is a novel material which is developed based on the microporous thermal insulation principle and mainly comprises superfine silicon dioxide powder with the diameter of 7 - 20 nm, a mixed thermal radiation shielding material, high-strength superfine fiber, high-temperature shrinkage resistant material and the like, and is pressed by a special process. The surface of the product is covered with glass fiber cloth, aluminum foil, plastic film, etc., and the common forms are flat plate type, felt type, roller shutter type, block type, etc. Flat type for flat wall or arc is not too big furnace wall, felt type can be used for steel ladle and other space has strict restrictions on equipment, roller shutter type is mainly used for piping system.

Annual output 4000 tons of nano aerogel insulation felt production line[2016/8/31]

Compared with conventional thermal insulation materials, nano aerogel thermal insulation felt has many advantages, such as superior thermal insulation performance, good high temperature resistance, unique flame burn-through resistance, stable chemical performance, strong hydrophobicity, low density, light weight, good sound insulation and shock absorption effect, good flexibility of product form, environmental protection and non-toxicity and so on. in the world, only a few countries such as the United States and Germany have production capacity.

Comparison of thermal insulation effect between nano - thermal insulation board and other thermal insulation materials[2016/8/31]

With the development of nanotechnology, high thermal insulation performance of nano-thermal insulation board came out, and has been widely used in foreign countries. In 2006, the thermal conductivity of nano thermal insulation board was developed in China, which is equivalent to that of foreign products and can be produced in batch. In this paper, we introduce the thermal insulation principle of nano thermal insulation board and compare the thermal insulation effect with other thermal insulation materials.

Application analysis of nano heat insulation board in steel ladle[2016/8/25]

Because the structure of refractory lining of steel ladle is different at present, whether it is brick - to - brick knot, brick - to - material knot or whole knot structure, the temperature drop of molten steel is still relatively large although there are cover heat preservation measures

Why is the thermal insulation effect of nano thermal insulation board so good[2016/8/25]

The nano heat insulation board adopts special nano inorganic refractory powder, the contact between the nano particles is extremely small point contact, the thermal resistance of the point contact is very large, so that the conductive heat transfer effect of the material is very small, and the conductive heat transfer coefficient of the nano microporous heat insulation material is very small.

Characteristics of nano aerogel thermal insulation felt aerogel[2016/8/25]

The characteristics of nano aerogel insulation felt is mainly determined by the characteristics of aerogel, so what are the characteristics of aerogel, here small series summarizes two points:

Preparation of nano aerogel insulation felt[2016/8/25]

Application example of nano aerogel insulation felt[2016/8/25]

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.

Tangshan medium and heavy plate co., ltd approved the heat preservation effect after using nano heat insulation board.[2016/8/25]

In order to further improve the insulation effect of 120 t steel ladle, the steel plant of Tangshan medium and heavy plate co., ltd. adopted the new type of nano heat insulation board of Germany, and successively carried out a series of comparative tests in the steel ladle, tundish and converter lining, and confirmed the insulation effect of the whole steel-making system after using the nano heat insulation board.

Why use nano heat shield in steelmaking process[2016/8/25]

1 ) After the nano heat insulation board is used in the converter, the shell temperature is reduced by 48 deg c, and the tapping temperature of the converter is increased by 7 deg c on average, so that sufficient conditions are prepared for lowering the tapping temperature of the converter; Under the same smelting condition, the addition of cold materials such as ore increased from 30.11 kg / t to 32.23 kg / t, and the addition of cold materials per ton steel increased by 2.12 kg.