Alkali liquor evaporation equipment for caustic soda electrolysis preparation

The invention is applicable to the technical field related to caustic soda preparation, and provides alkali liquor evaporation equipment for caustic soda electrolysis preparation, which comprises a bottom plate, the upper end of the bottom plate is fixedly connected with a supporting side plate, an evaporation box body is arranged above the bottom plate, and the evaporation box body is fixedly connected with the supporting side plate through a first connecting rod; a scraping assembly is arranged on the supporting side plate and the evaporation box body in a matched mode, the scraping assembly comprises a power unit and a scraping unit, through the arrangement of the scraping unit, the main frame body moves under the driving of a third connecting rod, under the action of a second curved surface, a first moving block moves towards the outer side, and in the upward moving process of the main frame body, the scraping unit is driven to move; the side wall of the evaporation box is scraped, after the first moving