It is used to spray water solution of liquid or powdery medicament onto the target of prevention and cure in the form of droplets, mainly divided into sprayer, sprayer and ultra-low volume sprayer. Commonly used are manual sprayer, stretcher-type Power Sprayer, knapsack-type power sprayer, sprayer with tractor, orchard-type air-blast sprayer and hand-held motor ultra-low volume sprayer, etc. .
The sprayer or sprayer is to use the liquid pump or the air pump to pressurize the medicine liquid, through the spray Rod, the sprayer or the spray gun atomizes the medicine liquid to spray the droplet which the diameter is 150 ~ 400 microns. The mist sprayer uses the high-speed air flow generated by the fan to crush the liquid into 50-150 microns in diameter to obtain better adhesion and spray uniformity. The ultra-low volume sprayer uses a high concentration liquid medicine without or with only a small amount of water. Under the action of Centrifugal force of high speed rotating (8000 ~ 10000 RPM / Min) atomizing disk, the liquid medicine is finely broken into 70 ~ 90 microns in diameter, drifting with the wind and falling evenly on the prevention and control targets, with less dosage, prevention and control effect of good characteristics. The atomizing disk can be powered by a zinc-air or dry battery (hand-held electric) , or mounted on a farm plane by a specially built wind wheel that spins at high speeds during flight. The sprayer can also be changed into an ultra-low volume sprayer with an atomizing disk for ultra-low volume sprayer on the common power sprayer.
