The invention relates to the fields of research and development of
new materials and new structures, and concretely relates to a preparation method of a gel bead. A preparation device of the gel beadscomprises a cavity, an
airflow cover, an air outlet
pipe, a
nozzle, a
syringe pump,
liquid storage tanks, an air inlet tube, a flow meter, a
thermostat and a liquid conveying tube. A liquid
raw material for gel beads to be prepared is placed in the first
liquid storage tank, and the
thermostat is turned on to maintain the temperature in the chamber at 30 DEG C; the flow rate of the flow meter isadjusted to 2 L / min to make air sequentially go through the second
liquid storage tank and the air outlet tube from the air inlet tube and be downwards blown out from the
airflow cover; a liquid in the first liquid
storage pool is transported to the
nozzle by the
syringe pump, and the liquid forms a drop at the lower end of the
nozzle; a part of air in the
airflow cover enters a main tube throughfour slits at the nozzle, and generates a pulling force to the liquid drops at the lower end of the nozzle; and the
liquid drop at the lower end of the nozzle is separated from the nozzle, drips intoan oily liquid in the third
liquid storage tank, and moves downwards under the action of gravity, and the
liquid drop gradually solidifies in the dripping process to form the gel bead.