2. It has been proved that superfine dry powder fire extinguishing agent is the one with the lowest fire extinguishing concentration, the highest fire extinguishing efficiency and the fastest fire extinguishing speed among the identified fire extinguishing agents at home and abroad. The fire extinguishing efficiency per unit volume is 2-3 times that of halon extinguishing agent, 6- 10 times that of ordinary dry powder extinguishing agent, 10 times that of heptafluoropropane extinguishing agent and 15 times that of carbon dioxide. It has zero ozone depletion potential (ODP) and zero greenhouse effect potential (GWP), and is non-irritating to human skin, non-corrosive and non-toxic to protected objects. After fire extinguishing, the residue is easy to clean, and it will not cause poisoning or suffocation in the fire. At the same time, the storage period can reach 10 year without frequent replacement and maintenance.
3. The fire-extinguishing bomb is easy to use and powerful, but improper operation will lead to failure of detonation, loss of due function and even injury; In particular, the existing fire-fighting bombs on the market are mixed in quality and quality. Some ordinary ABC dry powder fire-extinguishing bombs are unfair and inefficient, and because of their inherent defects such as moisture absorption and caking, the proportion of "dumb bombs" is very large after being stored for a certain period of time, which not only affects the fire extinguishing, but also leaves potential safety hazards. According to Shenzhen Business Daily, (March 26th, 2005), "The fire-fighting bomb picked up from the mountain blew up three fingers" and "After the Da Nan Shan fire was put out, Cao, who came to Shenzhen from Sichuan, picked up the remaining two fire-fighting bombs from the mountain and took them back to the shack at the foot of the mountain and dismantled them with a vise. Unfortunately, the second incendiary bomb blew off three of his fingers with a bang. Cao, who has no money for treatment, is still lying in the shack. The three hospitalized wounded injured in the mountain fire were also injured by improper use of fire-fighting bombs. "
4. Therefore, how to choose a safe, environmentally-friendly and efficient fire-fighting bomb correctly is a professional knowledge that users (especially forestry departments) must master; At present, the fire-fighting bombs on the market are mainly dry powder, and other types of fire-fighting bombs can be completely ignored because of their low fire-fighting efficiency. Among dry powder fire-extinguishing bombs, ultra-fine dry powder fire-extinguishing bombs are favored for their great power, light weight, safety and environmental protection. The fire-extinguishing bomb produced by Wuhan Green Fire Equipment Co., Ltd. has two initiation modes for users to choose from. One is the pull-out type (also called active type), which explodes after the cable is forcibly pulled out for seven seconds; The other is the ignition type (also called passive type), which can be used simply by tearing off the cover, taking out the superconducting thermosensitive wire and throwing it into the fire. When fighting forest fires, because there are many people trained in the use of fire-fighting bombs and few professionals, we should choose the ignited ultra-fine dry powder fire-fighting bombs. As long as the success rate of this kind of fire extinguisher is almost 100%, it can be selected according to the site conditions when it is used in other aspects of fire fighting, such as some narrow places or fire spots where throwing is not allowed, the fire will cause the fire extinguisher to roll and it is not easy to be ignited by flames, so it is suitable to use the pull-out fire extinguisher.
5. The correct use of fire-fighting bombs is not only related to the fire-fighting efficiency, but also related to the personal safety of users. Although the manufacturer of fire-fighting bombs has printed instructions on the trademark of fire-fighting bombs, no one has time to read the instructions when using them. In addition, the quality problems of some products sometimes cause harm to users. According to Jinling Evening News (April 5, 2005), the fire-fighting bomb exploded in the hand of a ranger: "At 3: 40 pm that day, a forest fire broke out in the southeast corner of Liuhe Pingshan Forest Farm. /kloc-more than 0/00 forest rangers also went up the mountain with fire extinguishers and fire bombs to put out the fire at the first time. When the firemen climbed to the top of the mountain with the team members of Class Two, the fire spread around by the wind, and the flame jumped more than 20 meters high. Fang and his colleagues immediately threw fire bombs. When he opened the fuse of the second fire extinguisher and was ready to throw it out, the smoking fire extinguisher suddenly exploded in his right hand, and the flying debris hit his left hand at the same time. Fang immediately fainted to the ground and was immediately sent to Liuhe People's Hospital for rescue. "
6. When using a fire extinguisher to put out the fire, the user must be trained in how to throw the fire extinguisher before putting out the fire. For example, when using a fire extinguisher, the fire extinguisher must be thrown within a delay of seven seconds, otherwise it may hurt yourself or your companions; Ignited fire extinguishers should pay attention to avoid fire sources before being thrown out (ignited fire extinguishers should pay more attention to fire prevention than pull fire extinguishers when being stored), and more importantly, the quality of products should be investigated and compared when buying fire extinguishers before they can be used safely.