If you are outdoors, you should choose the windward direction.
If the external pressure storage dry powder fire extinguisher is used, the author should hold the spray tightly with one hand and lift the opening bail on the gas cylinder with the other hand.
If the cylinder is opened by handwheel, loosen it counterclockwise, turn it to the highest position, and then lift the fire extinguisher.
When the dry powder is ejected, it is quickly aimed at the root of the flame.
If the dry powder fire extinguisher used is built-in gas cylinder or pressure storage type, the author should first unplug the safety pin on the opening handle, then hold the nozzle at the front end of the hose, press the opening handle with the other hand, and open the fire extinguisher to extinguish the fire.
When using a hose fire extinguisher or a pressure storage fire extinguisher, be sure to hold down the handle with one hand and never let go, otherwise it will be interrupted.
2. How to use the carbon dioxide fire extinguisher to extinguish the fire? Just lift or carry the fire extinguisher to the fire site. When it is about 5 meters away from the combustible materials, pull out the safety pin of the fire extinguisher, and hold the handle at the root of the horn in one hand and the pressure handle of the switch valve in the other.
For carbon dioxide fire extinguishers without hoses, place the horn on the upper plate at 70-90 degrees.
When using, you can't directly grasp the outer wall of the horn or the metal connecting pipe with your hands to prevent your hands from being frostbitten.
When putting out a fire, when the combustible liquid burns in a flowing state, the user aims the carbon dioxide extinguishing agent jet at the flame from near to far.
If combustible liquid burns in the container, the user should raise the horn.
From the upper part of one side of the container to the combustion container.
However, the carbon dioxide jet can not directly impact the surface of combustible liquid, which prevents combustible liquid from being washed out of the container, expands the fire and brings difficulties to fire fighting.