The invention provides a device for recovering high-temperature
molten slag heat. The device is used for recovering the heat of the
molten slag flowing out of a high-temperature
smelting furnace. Thedevice comprises a
molten slag conveying device, the molten
slag conveying device is used for conveying the molten
slag flowing out of the high-temperature
smelting furnace to a molten
slag tank; themolten slag tank is used for containing the molten slag flowing out of the high-temperature
smelting furnace, and conveying the molten slag into a lead-
liquid tank connected with the molten slag tank;a
heat transfer tube is arranged at the bottom of the lead-
liquid tank, a
heat resistance agent is used for connecting the
heat transfer tube and the lead-
liquid tank into a whole, and a
heat transfer medium is arranged in the
heat transfer tube; a
solid slag liquid conveying device is used for conveying the
solid molten slag cooled by the lead-liquid tank out; and a protective gas device is arranged above the molten slag tank and the lead-liquid tank, and a heat exchange device is connected with the
heat transfer tube arranged at the bottom of the lead-liquid tank, and is used for conveyingthe heat transfer medium into the heat exchange device. According to the device for recovering the high-temperature molten slag heat, rapid absorption of the residual temperature of the high-temperature molten slag can be realized, moreover, environment
pollution is avoided, the structure is simple, and the cost is low.