How to use portable fire extinguishers

How to use the portable fire extinguisher: When using it, bring the handle of the portable fire extinguisher or the shoulder fire extinguisher to the fire. At a distance of about 5 meters from the burning place, put down the fire extinguisher, first pull out the safety pin, hold the opening handle in one hand, and hold the other hand in the nozzle at the front end of the spray hose. If the fire extinguisher does not have a spray hose, hold the open handle in one hand and the bottom ring on the bottom of the fire extinguisher with the other hand. First align the nozzle with the burner and firmly open the pressure roller to spray the fire extinguisher. When the flammable liquid is burned in a flowing state, the user should aim at the root of the flame from near to far and sweep left and right, and advance rapidly until the flame is completely extinguished. If the flammable liquid burns in the container, it should be swayed to the left and right sides of the flame. When the flame is driven out of the container, the jet will follow the flame until the flame is extinguished. However, it should be noted that the jet cannot be directly sprayed on the surface of the combustion liquid to prevent the force of the fire extinguishing agent from rushing the flammable liquid out of the container to expand the fire, which makes the fire extinguishing difficult. If the initial fire of the flammable solid substance is extinguished, the jet will be sprayed at the most violent place. When the flame is extinguished, measures should be taken to prevent it from re-igniting.