Proper use of fire extinguishers
Dry fire extinguisher (MFZ) 2-3kg effective range range 2.5m, 4-5kg, range 4m, time 8-9 seconds. 8kg range of 5m, time 12 seconds. (MFTZ) 35-50kg cart with an effective range of 8m and time of 20 seconds. 70kg cart range 9m, time 25 seconds.
The powder cart is used, the fire extinguisher trolley quickly pushed to the fire nearby, pull out the spray hose and straightening, pull out the pin and open the valve handle straight, at the bottom of flames, the pink mist swept key flame, pay attention to cut off the fire, flame control to move forward from the near to the distant fire.
Dry powder storage type fire extinguisher (portable) is driven by nitrogen as the power to dry out the powder in the canister. Suitable for fighting petroleum products, paint and organic solvent fire. It can suppress the chain reaction of fire and extinguish fire. Also suitable for extinguishing liquid, gas, electrical fire (dry powder has more than 50 thousand volts of electrical insulation performance). Some can also fight solid fires. Dry powder fire extinguishers can not fight light metal fires. When in use, first pull out the safety pin (some pull up the pull ring), and then press the press, the dry powder can be ejected. Fire should be close to the flame injection; dry powder injection time is short, before spraying, choose good jet target, because dry powder is easy to drift away, unfavorable against the wind jet. Attention to the maintenance of fire extinguishers, should be placed in a good, dry and ventilated place. Each year to check whether the two dry powder caking, if the block should be replaced in a timely manner; once a year to check the weight of the drug, if less than the required weight or watch the pressure gauge, the following pressure drop, should be promptly filled.
A fire extinguisher is a portable fire extinguisher that can be used to save fires and control the spread. Different kinds of fire extinguishers are suitable for different kinds of fire, and their structures and methods of use are also different. There are many kinds of fire extinguishers, such as foam extinguisher, carbon dioxide fire extinguisher, dry powder fire extinguisher and 1211 fire extinguisher.
