Aluminum sulfate reaction kettle device utilizing waste heat

The utility model discloses an aluminum sulfate reaction kettle device utilizing waste heat. The aluminum sulfate reaction kettle device comprises a shell assembly, a transmission assembly, a heat absorption assembly, a circulating assembly and a mixing assembly, wherein the shell assembly comprises a bottom plate, supporting legs, a kettle body, a kettle cover, a feeding end, a discharging end and a conveying pipe, the supporting legs are fixedly connected to the top of the bottom plate, the kettle body is welded to the tops of the supporting legs, and the kettle cover is connected to a flange at the top of the kettle body; when a user introduces sulfuric acid and aluminum hydroxide into the kettle body; the two chemical agents are fused by the mixing assembly; a large amount of heat is generated in the reaction process; enabling the temperature of the liquid in the reaction kettle to reach 140 DEG C; at the moment, liquid in the water tank is guided into the liquid guide pipe throughthe circulating pump, th