The fog gun vehicle is mainly composed of swing arm spraying device, liquid storage tank, self-carrying vehicle and control system. Its working principle is mainly based on the interaction between hydraulic system and electronic control system, that is, mobile spraying equipment injects spraying liquid into the liquid storage tank of the liquid distribution station and goes to the spraying point by itself; When the train passes, the photoelectric detection system begins to identify the traction locomotive. After the traction locomotive passes, it sends a signal, and the controller controls the transmission hydraulic system to rotate the liquid distribution pipe orthogonal to the carriage, and at the same time starts the liquid pump to start spraying. And adjust the flow of the liquid pump to meet the design spraying standard. The photoelectric detection system sends a signal to PLC between the train hooks, and controls the stepper motor or servo motor to rotate the shielding roller to stop spraying and spraying through the transmission connection device. The fog gun truck uses high-pressure equipment. After the tap water is professionally purified, a strong working pressure is formed in the high-pressure unit, and water mist particles of about 5-50μm are formed through special nozzles, and a large number of tiny fog particles gather and float in the air, forming a white fog effect. Under the action of evaporation, it can quickly absorb the heat in the air, quickly and effectively absorb the heat to reduce the surrounding temperature and increase the air humidity. It is mostly used to cool the cowshed, pigsty and chicken coop to cope with the occurrence of thermal stress.

Atomization spray dust removal: after mixing special foam dust suppression liquid with water in a certain proportion, compressed air is sprayed on the outside and above the barn in the pasture to form a large number of foam particle groups, so that the whole pasture is covered with seamless foam.

Through interception, inertial collision, diffusion, adhesion to foam and other functions, the dust in the air gathers from small particles into large particles, and finally settles down with the broken foam droplets, which fundamentally prevents the dust source from spreading outward and achieves the purpose of atomizing and spraying dust removal. Atomization spray deodorization, which can be used as deodorization by adding deodorizing liquid medicine to the water tank of multifunctional dust suppression vehicle. Spraying deodorant liquid can make drug molecules fully contact and react with odor molecules in the air with the diffusion of mist particles, and effectively remove odor waste gas. Atomization and spray disinfection: add disinfectant into water, use an atomizer to form atomized particles with a diameter of about 10μm, and uniformly suspend them in the air to disinfect farms/pastures. Atomized particles with a diameter of 10μm can not only be suspended in the air for a long time, but also be fully contacted and adsorbed with germs and dust, and can also be prevented from being inhaled into the respiratory tract by livestock. Prevention and control of pasture diseases and insect pests: add pesticides into water, use an atomizer to form atomized particles with a diameter of about 30-50μm, and uniformly suspend them in the air to prevent and control farm/pasture diseases and insect pests. Atomized particles with a diameter of 30-50μm can not only be suspended in the air for a long time to kill and drive mosquitoes and flies, but also avoid being inhaled into the respiratory tract by livestock and poultry, causing unnecessary losses. The multifunctional dust suppression vehicle has two functions: spraying and spraying. In the process of watering, just adjust the frequency conversion device to the spraying position for watering. It can be used to water pasture, planted crops, pasture vegetation, trees and so on. In plantations or pastures, it is a relatively powerful device. The liquid fertilizer is applied to planting crops, and the liquid fertilizer (foliar fertilizer) is added into water, and the diluted fertilizer is formed into particles with a diameter of about 50- 150μm by an atomizer, which are evenly sprayed on crop leaves to promote crop growth. The fog gun truck can also spray pesticides, but it should be cleaned in time after use to avoid harm to people and livestock and poultry when it is used for other purposes. Aiming at the environmental pollution caused by excessive dust in coal yards, thermal power plants, iron and steel mines, coking plants, yards, docks, factories and workshops. And there is no need to spray a large amount of water like a spray gun. The water is atomized through nozzles with different shapes and atomization angles and condenses with dust to achieve the purpose of eliminating dust and purifying the environment.