Concentrated sulfuric acid mixing device for sulfuric acid production system

The utility model discloses a concentrated sulfuric acid mixing device for a sulfuric acid production system, which comprises an acid mixing pipe and an acid inlet pipe connected to the side wall of the acid mixing pipe, a water seal end cover is arranged at the top of the acid mixing pipe, a closed water seal cover is arranged at the top of the water seal end cover, a water adding pipe is arranged above the water seal cover, and an acid outlet pipe is arranged at the lower end of the acid mixing pipe. A degassing pipe is arranged on the side wall above the acid mixing pipe, a spraying pipe is arranged in the middle of the water seal end cover in a penetrating manner, the spraying pipe is a bottom closed pipe with a plurality of water outlet holes uniformly formed in the side wall of the lower end, the bottom of the spraying pipe extends to the bottom of the acid mixing pipe, and an acid outlet of the acid outlet pipe extends below the acid liquid level of the concentrated sulfuric acid circulating tank. The