1, 8 kg portable dry powder fire extinguisher
Extraction of fire extinguishers upside down to the scene twice, pull out the safety plug, one hand holding the nozzle at the root of the flame, one hand press the press can. Fire fighting should be abandoned at one time; Outdoor use should stand in the fire source on the tuyere, from near to far, right and left sweep, advance forward, do not let the flame back channelling.
Portable 1211 fire extinguisher
Pull out the safety pin first, and then one hand to open pressure, the other hand hold the handle of the trumpet spray bucket, hold open pressure to eject. (at present, the country gradually restricted the use, mainly because halogenated alkane pollution to the atmosphere, harmful to human health.) The carbon dioxide fire extinguisher is now replacing the 1211 fire extinguisher, which is used in the same way as the 1211 fire extinguisher. But when using carbon dioxide, you must be careful not to hold the nozzle or touch the mouth to prevent frostbite.
3. 35kg wheeled dry powder fire extinguisher
Two people operate, one person to remove the spray gun, and expand the hose, and then put his hand on the trigger; The other pulls out the safety pin on the opening mechanism and quickly turns on the opening mechanism of the fire extinguisher.
4. Foam fire extinguisher
The foam extinguisher consists of aluminum sulfate, sodium bicarbonate and liquorice. When extinguishing the fire, put the foam extinguisher upside down, the foam can be ejected, covering the fire to achieve the purpose of extinguishing the fire. Suitable for extinguishing fire of barrel oil, pipeline and ground. Not suitable for fire of electrical equipment and precision metal products.
5. Carbon tetrachloride fire extinguisher
Carbon tetrachloride gasification is colorless transparent, non - conductive, density than air gas. Put out the fire, put the fuselage upside down, nozzle downward, screw open the hand valve, can spray to the flame to extinguish. Suitable for extinguishing the fire of electrical equipment and valuable instruments and equipment. Carbon tetrachloride toxicity, users to stand in the tuyere. In the room, after the fire should be timely ventilation.
6. Carbon dioxide fire extinguisher
Carbon dioxide is a non-conducting gas, denser than air and liquid at high pressure in cylinders. When extinguishing the fire, just flip the switch, carbon dioxide is sprayed on the fire with the state of airflow, isolating the air and extinguishing the flame. It is suitable for small area fire in precision instrument, electrical equipment and oil laboratory. Carbon dioxide from liquid to gas, a lot of heat absorption, the temperature is very low (can reach -80℃), to avoid frostbite. Meanwhile, carbon dioxide is toxic and should be avoided as much as possible.