Patent ID: 8747524

Claim:
A method for separating out molten dust in high temperature gas, comprising the steps of: passing the high temperature gas carrying molten dust through an adhesive separator, so that the molten dust adhering to an inner sidewall of the adhesive separator and being separated from the high temperature gas, the molten dust adhering to the inner sidewall flowing down along the inner sidewall and discharging via a drain outlet in a bottom portion of the adhesive separator due to the gravity force; conveying the cleaned high temperature gas to a heat exchanger directly or right after further reacting with/heating materials for cooling and discharging; using heat recycled by the heat exchanger to heat gas supplied to the adhesive separator; and supplying the gas heated by the heat exchanger into the adhesive separator directly or after further reaction, heat absorbed from the heat exchanger alone or together with heat generated in the further reaction keeping temperature of the gas flowing out of the adhesive separator higher than the melting point of the dust.