The invention relates to a flow-washing-type battery material dryer free of a screen cloth. The flow-washing-type battery material dryer free of the screen cloth is characterized in that the dryer comprises a support, a spiral material feeder, a first
flange plate, a discharging
pipe, an air cylinder, a material dropping plate, a sealing
piston, a weighing device, a second
flange plate, a Venturi branched tube, an
airflow tank, a return air tank, a feeding
pipe, a
cyclone air outlet
pipe, an air return pipe, a
vacuum pumping pipe, a
reflux tank, a Venturi tube and a third
flange plate; the
airflow tank comprises an upper
airflow tank section and a lower airflow tank section, and the upper airflow tank section and the lower airflow tank section communicate with each other; the
reflux tank is arranged at the outer side of the upper portion of the upper airflow tank section in a sleeving mode; the upper end of a space between the
reflux tank and the upper airflow tank section is closed, and the lower end of the space is opened; and the reflux tank is of a cylinder structure with the cross section circle variable. According to the flow-washing-type battery material dryer, the return air tank, the reflux tank, the airflow tank and the Venturi tube are sequentially nested from outside to inside, so that the heat preservation effect of the dryer is made good; and moreover, heat is transmitted between the multiple
layers of the pipes, after all
layers of pipe walls are heated by hot air, the heat can be radiated outwards from the pipe walls, and
powder drying is accelerated.