Preparation method of mineral insulated cable porcelain column

The invention discloses a preparation method of a mineral insulated cable porcelain column. According to the method, cellulose with 600-800 polymerization degree is used as a raw material and then subjected to alkalization and etherification under certain technological conditions to obtain an adhesion agent with 50-80mPa*s viscosity. The adhesion agent has appropriate viscosities so that the calcination temperature of the porcelain column can be reduced to 750 DEG C in the later period of porcelain column manufacturing, and energy consumption is greatly reduced; and the adhesion agent can be dissolved in water at normal temperatures, and energy consumption for dissolving the adhesion agent is saved. The preparation method is used for preparing magnesium oxide of the porcelain column, the energy consumption during magnesium oxide producing is reduced, and the production costs of the magnesium oxide is around 2/3 of those of electric smelting magnesium oxide. According to the magnesium oxide porcelain column pr