Continuous sodium silicate pressurized dissolving method

The invention relates to a continuous sodium silicate pressurized dissolving method which comprises the following specific steps: (1) shattering sodium silicate in a molten state by quenching in a quenching bin when meeting water so as to form particles with the particle size of less than 1.5cm, continuously feeding sodium silicate particles into a dissolution kettle by virtue of a star-like rotary valve; (2) continuously pumping the water in the quenching bin into the dissolution kettle by virtue of a pump, and introducing steam into the kettle by virtue of a steam pipe of the dissolution kettle, wherein the sodium silicate particles are fully contacted with hot water in the kettle under the stirring effect in the kettle; and (3) fully dissolving the sodium silicate particles, delivering the particles into a re-dissolution kettle by virtue of a slurry pump, rapidly dissolving the sodium silicate particles in the re-dissolution kettle, and extracting the sodium silicate to be delivered into a liquid sodium silicate storage tank. The problems such as energy waste, intermittent operation, high labor intensity, high investment cost and the like existing in the conventional sodium silicate dissolving process are solved.