Method and device for quickly separating silicon-calcium slag

The invention discloses a method and a device for quickly separating silicon-calcium slag. The device comprises a high-pressure storehouse, a filter and a discharging system, wherein the high-pressure storehouse is a high-pressure sealed system, the filter is arranged in the system and mainly comprises a pulp storing groove and a rotating mechanism, a plurality of ring-shaped filtering discs are arranged on the rotating mechanism in series, the rotating mechanism is formed by concentrically arranging a plurality of fan-shaped filtering plates, the rotating mechanism and the fan-shaped filtering plates are hollow and are internally communicated with one another, and the pulp storing groove is arranged under the rotating mechanism; the discharging system comprises a backward blowpipe and a material falling groove, wherein the material falling groove is connected with the material falling groove, the material falling groove is connected with an air-entrapping pipe of the high-pressure storehouse and is communicated with the place where the ring-shaped filtering discs are placed above the material falling groove through a distribution head. After the method and the device are adopted, the water content of the separated silicon-calcium slag reaches 15%, and the suspended matter content in the filter liquor is less than 5g/L, so that the solid-liquid separation effect can be greatly improved.