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On Application Of Aerogel Insulation Blanket In 120t Ladle

In order to solve the problem of the large temperature drop of molten steel, now 120 tons ladle using aerogel insulation blanket has the following effects: reduce the ladle shell temperature; reduce heat radiation by molten steel ladle refractories; reducing process energy consumption of LF furnace; installation, demolition convenient, reduces the labor intensity of repairing personnel.

Ladle is an indispensable equipment in the production process of steelmaking process. Its service life and insulation performance directly affect the direct process of steelmaking process, the quality and productivity of products. With the deepening of the strategy of western development, users' demand for products is getting higher and higher. Every steel plant has introduced LF, CAS and RH refining equipment. Meanwhile, refining process not only prolonged the transportation time of molten steel, increased the operation process of molten steel, increased the temperature drop of molten steel during converter tapping and continuous casting, but also decreased the temperature of molten steel directly, which would directly affect the continuous operation of continuous casting and other processes. The permanent layer of ladle is generally made of castable. However, the thermal conductivity of these refractories is large, and the temperature of the outer wall of the cladding even reaches 240 degrees, which is an important heat loss point for the temperature drop of molten steel. The steel shell is at a high temperature for a long time, which also greatly affects the service life of the ladle steel shell. In order to solve this problem, it is decided to introduce the ladle reflector with nanometer adiabatic technology to the 120T ladle.

On Application Of Aerogel Insulation Blanket In 120t Ladle

In order to solve the problem of the large temperature drop of molten steel, now 120 tons ladle using aerogel insulation blanket has the following effects: reduce the ladle shell temperature; reduce heat radiation by molten steel ladle refractories; reducing process energy consumption of LF furnace; installation, demolition convenient, reduces the labor intensity of repairing personnel.

The effect of using aerogel insulation felt:

(1) the ladle with aerogel insulation felt the target of reducing the shell temperature of 50 degrees centigrade, and the average temperature drop reached 60.5 degrees C.

(2) the use of the ladle with aerogel insulation felt reduced the energy consumption coefficient of the refining LF furnace, and played a role in reducing the energy consumption of the process.

(3) no molten metal shell of ladle leakage steel and nodulation phenomenon, even if the internal part of refractory steel permeating, terminating the surface of the reflecting plate;

(4) after a ladle service, it is easy to dismantle and be easy to install when overhauling, which reduces the labor intensity of the repair staff of the ladle.

The aerogel insulation blanket in the use of 120 tons ladle effectively alleviated the molten steel temperature drop problem, play the following functions: one is to reduce the temperature of the ladle shell, thereby reducing the heat radiation through the molten steel ladle refractories; the two is to reduce the energy consumption of LF furnace; three is the installation and removal of convenient, reduces the labor intensity of repairing personnel.