Device and method for on-line detection of reagent dosage in beneficiation production process

The invention discloses a device and method for online detection of reagent dosage in the beneficiation production process in the technical field of flotation reagents, and the device comprises a mobile terminal, a controller and a mixing box, and the mobile terminal is electrically connected with the controller; the top of the mixing box is fixedly connected with multiple pesticide storage boxes; transition boxes are fixedly connected to the tops of the medicine storage boxes; the top of the transition box communicates with a water pump; a measuring assembly for measuring the flow of the medicament is arranged at the joint of the transition box and the medicament storage box; the method comprises the following steps: firstly, determining types and proportioning parameters of reagents according to mineral-dressing mineral components and total amount; secondly, the amount of liquid medicine passing through one electromagnetic valve every minute is detected according to a flow meter, and the opening time of one