Alkali powder feeder for hydroxamic acid salt preparation

The invention relates to the technical field of flotation collecting agent synthesis, in particular to a powdered alkali feeder for hydroxamic acid salt preparation. The invention provides a powdered alkali feeder for hydroxamic acid salt preparation, which can automatically adjust the addition amount of powdered alkali according to the temperature of a methanol solution of hydroxylamine salt in a mixing barrel. The invention discloses a powdered alkali feeder for preparing hydroxamic acid salt. The powdered alkali feeder comprises a rack, a mixing barrel, an alkali adding barrel, a stirring motor, a stirring rod and the like, the upper portion of the rack is connected with a mixing barrel and an alkali adding barrel used for containing powdered alkali, the alkali adding barrel is located above the mixing barrel, the lower portion of the rack is connected with a stirring motor, and a stirring rod is rotationally connected into the mixing barrel. The feeding frame is extruded by the stirring rod to intermitten