Quantitative dosing device for sewage treatment

The utility model relates to the technical field of sewage treatment, in particular to a quantitative medicament feeding device for sewage treatment, which comprises a mixing box, a treatment mixing mechanism is arranged on the mixing box and used for grinding medicaments and fully reacting the medicaments with sewage, and the treatment mixing mechanism comprises a mounting frame fixedly mounted at the bottom of the mixing box. A grinding box is fixedly mounted at the top of the mixing box, a medicament filling hopper is arranged at the top of the grinding box, and a grinding block is fixedly mounted on the inner side of the grinding box. According to the quantitative medicament feeding device for sewage treatment, through the arrangement of the treatment mixing mechanism, when sewage is treated, blocky medicaments can be ground into fine powder through mutual cooperation of all structures on a mixing box, and the fine powder is quantitatively put into the mixing box to be mixed with the sewage; therefore, th