The problems in the construction process of the lining furnace construction: The temperature difference between the construction environment in winter and the construction site is too large. The construction temperature cannot guarantee the construction requirements of +5e or more. Even if the bottom carbon block in the tank is heated ahead of time before the construction, there is no protection against the cold during the construction and the construction quality requirements cannot be guaranteed. Due to the old process of filling the gypsum after the side carbon block is used for building, the side carbon blocks are generally damp, and the freezing phenomenon occurs in winter, which poses a hidden danger when the roasting starts.

The quality of the cold paste used for construction is unstable, and the softening point fluctuates widely, which brings difficulties to the construction. At the time of Zhagu, the temperature of the paste was too low to cause desertification, and it was not true. On the other hand, if the paste temperature is too high, the anti-slurry phenomenon will occur and it will not be true. Both of these phenomena make the cold paste and the carbon block not well combined, and easily produce cracks and delamination. In severe cases, the calcination start process aluminizing and the electrolyte eventually melts the cathode steel rod, causing early damage of the electrolytic cell. Delaying the selective absorption of sodium ions at low temperatures and the formation of carbon and sodium compounds in the carbon materials at the low temperature can prevent delamination at the bottom of the carbon block at the beginning of the start-up period and cause early damage.

In the process of solidification, helium and helium leaks occur. The so-called excessive enthalpy is over-consolidation caused by excessive wind pressure. The large particles in the paste are crushed to produce new granule surfaces. These new granule surfaces have no adhesive. Penetration, infiltration, can not be bonded by other pastes. This not only reduces the strength of the paste after sintering, but also increases the specific resistance. What's more serious is the poor adhesion between the layers, resulting in delamination. As a result, the penetration rate of the electrolyte and the aluminum liquid is increased, and the melting rod and the leakage furnace are severe. Early damage to the cell. Leakage is due to work mistakes, a certain individual carbon block joints are not sturdy, or a layer is not sturdy, will seriously affect the quality of construction, resulting in early damage electrolytic tank.

Light Stabilizer

Light Stabilizer,Silane Adhesive,Organic Pharmaceutical Synthesis Intermediates,Cas 2530-85-0 In Stock

Henan Tianfu Chemical Co.,Ltd , https://www.tianfuchem.com