Fluidized bed bottom spray coating machine 120L

Fluidized bed bottom spray coating machine 120L At present, for the bottom spray coating device for solid preparations, most of them use wuster coating device, the device mainly has two shortcomings: the coating nozzle and the airflow distribution plate are fixed, when the gun jam occurs, the equipment needs to be stopped, and the pharmaceutical particles are poured out and then cleared, which is quite troublesome to operate and cannot guarantee the coating effect
.

Pharmaceutical particles in the guide cylinder in a bubbling state of motion, once the pharmaceutical particles into the guide cylinder, the lower part of the particles will always be in the lower position of the guide cylinder, so that it is necessary to through a long coating operation to achieve uniform
coating of the particles.

A kind of fluidized bed bottom spray coating device, which can realize online gun clearing and easy to operate; The particles in the deflector tube show a spiral movement, which makes the particle coating effect better, the coating time is greatly shortened, and the coating efficiency is greatly improved
.

Fluidized bed underspray coating device, comprising a fluidized bed body having a hollow cavity, the fluidized bed body comprises the upper part of the body, the lower part of the body, the upper part of the fluidized bed body is provided with pharmaceutical particles; Characterized in that the upper part of the fluidized bed body in the hollow cavity is vertically provided with a guide cylinder, the axial side of the guide cylinder is provided with a guide cylinder lifting mechanism, the guide cylinder lifting mechanism is indirectly connected to the operating handwheel by penetration from the outer wall of the upper part of the body and vertically connected to the operating handwheel; The bottom of the deflector cylinder is provided with an airflow distribution plate located between the upper part of the fluidized bed body and the lower part of the fluidized bed body, and the airflow distribution plate is provided with an airflow hole through the inner cavity of the deflector cylinder in the center, and is connected to the lower part of the body positioning; The fluidized bed body is provided with a nozzle mount in the hollow cavity of the lower part of the fluidized bed body, and the top of the nozzle mount is connected to the airflow distribution plate; The airflow distribution plate is equipped with a briquet set up close to the inner wall of its airflow hole; The briquet is provided with a conical center hole coaxially through the air hole of the guide cylinder and the airflow distribution plate, and the bottom surface and the upper part of the nozzle mount are provided with a interception net; The outer wall of the lower part of the fluidized bed body is provided with a nozzle base, and the nozzle base is provided with a coated nozzle head penetrated from its outer end into the nozzle mount; The nozzle of the coated nozzle is facing the tapered center hole of the briquet and protruding from the top surface
of the interception net.