Emergency treatment of dangerous goods transportat

2022-07-19
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Emergency handling of road transport accidents of dangerous goods in recent years, road transport accidents of dangerous goods have occurred frequently, and once an accident occurs, the impact is often very bad. Therefore, it is particularly important for practitioners to understand the emergency treatment measures in case of insulation and grounding accidents

explosives

fire extinguishing method cooling with water can achieve the purpose of fire extinguishing, but suffocation method or isolation method cannot be adopted. It is forbidden to use sand to cover the burning explosives, otherwise it will change from burning to explosion. When putting out a fire caused by toxic explosives, the fire extinguishing personnel shall wear gas masks

leakage treatment: for the leakage of explosives, it shall be moistened with water in time, and then sprinkled with soft articles such as sawdust or cotton wadding. After collection, it shall maintain a considerable humidity and report to the firefighters for treatment. It is absolutely not allowed to put the collected leakage back into the original package

compressed gas and liquefied gas

fire extinguishing method move the unfired gas cylinder to a safe place quickly; Spray the ignited gas cylinder with a large amount of mist water; When the fire is not serious, carbon dioxide, dry powder, foam and other fire extinguishers can be used to put it out

in case of gas cylinder leakage during transportation, especially toxic gas, the cylinder shall be moved to a safe place quickly, and corresponding protection shall be done according to the nature of the gas. People shall stand at the upwind and screw the valve tightly. Most toxic gases can be dissolved in water. In case of an emergency, cover your mouth and nose with a towel soaked in clean water. If you can't stop it, push the cylinder into the water and notify relevant departments in time

flammable liquid

fire extinguishing methods the most effective way to eliminate flammable liquid fires is to use foam, carbon dioxide, dry powder and other fire extinguishers

in case of leakage, cover it with sand or soft material in time, and then concentrate it in an open and safe place for treatment. When covering, pay attention to prevent liquid from flowing into sewers, rivers and other places to prevent environmental pollution

flammable solids, self igniting substances and flammable substances when wet

fire extinguishing methods according to the different properties of flammable solids, water, sand, foam, carbon dioxide and dry powder fire extinguishing agents can be used to extinguish the fire, but it must be noted that flammable solids that react with water shall not be extinguished with water, such as aluminum powder, titanium powder and other metal powders shall be extinguished with dry sand and dry powder fire extinguishers; Sand gland is prohibited for flammable solids with explosion risk, such as nitro compounds; Flammable solids that produce highly toxic gases in the presence of water or acid, such as phosphorus compounds and nitro compounds (including nitrocellulose), nitrogen compounds, sulfur, etc., the conversion mechanism that produces toxic and irritating gases during combustion shall be able to accurately locate. It is strictly prohibited to use nitro alkali and foam extinguishing agents for fire fighting. Gas masks must be worn during fire fighting; Red phosphorus will be converted into yellow phosphorus at high temperature and become spontaneous combustion products. Care should be taken when handling

attention shall also be paid to extinguishing fires caused by spontaneous combustion materials: dry powder, sandy soil (excluding spontaneous combustion materials with explosion risk when dry) and carbon dioxide extinguishing agent are generally used to extinguish fires caused by such materials. Articles that can react with water, such as triethyl aluminum and aluminum iron solvent, shall not be put out with water; After the yellow phosphorus is extinguished by water, it is only temporarily extinguished, and the residual yellow phosphorus will spontaneously ignite after the water volatilizes. Therefore, special personnel shall be assigned to closely observe the site. At the same time, protective clothing and anti-virus surface shall be worn during the firefighting. 12. Accuracy of stress control rate: when the rate is less than 0.05%fs/s

when extinguishing wet flammable materials, attention shall also be paid: in case of fire of such materials, the unburned materials shall be quickly evacuated from the fire site or effectively isolated from the combustibles, and dry sand and dry powder shall be used for firefighting; For substances that react with acids or oxidants, acid-base and foam extinguishing agents are prohibited; Carbon dioxide fire extinguishers are prohibited for active metals, and soda, salt, nitrogen or graphite powder shall be used for fire fighting; Lithium fires can only be put out with graphite powder

leakage handling when the above three types of goods are leaked, they can be collected and packed separately. The collected residues shall not be discharged or discarded arbitrarily. Do not use water for the treatment of spills that react with water, but the cleaned site can be washed with a large amount of water

oxidants and organic peroxides

fire extinguishing methods: 2. The intuitive operation interface is convenient for copying and pasting function machine peroxides and metal peroxides can only be extinguished with sand, dry powder and carbon dioxide fire extinguishing agents; Wear gas masks when fighting

leakage treatment in the process of loading and unloading, if the oxidant is leaked due to poor packaging or improper operation, it shall be gently swept up and packed separately, but it shall not be shipped with the same vehicle. It must be left in a safe place, and a small amount of oxidant or residue leaked shall be cleaned

toxic and infectious substances

fire extinguishing methods when extinguishing the fire of toxic and infectious substances, attention should be paid: in case of cyanide fire, do not use acid-base fire extinguishers, but use water and sand; When extinguishing the fire of toxic substances, the fire extinguishing personnel shall take corresponding fire extinguishing methods according to their properties. Try to stand in the upwind direction and wear gas masks when fighting

solid toxic and infectious substances can be put into containers after collection; Liquid toxic and infectious substances shall be soaked with soft substances such as cotton wadding and sawdust, collected after adsorption, and put into containers

corrosives

fire extinguishing methods when inorganic corrosives or organic corrosives are directly burned, a large amount of water can be used to put out the fire except for substances with water reaction characteristics. However, fog water should be used instead of high-pressure water column to directly spray objects, so as to avoid splashing water droplets with corrosive substances burning the fire extinguishing personnel

the leaked liquid corrosive products shall be covered with dry sand and dry soil for absorption, and then washed with water after cleaning. In case of large amount of overflow, dilute acid or alkali can be used for neutralization. During neutralization, violent reaction shall be prevented. When washing the leaking site with water, it can only be poured and washed slowly or sprayed with fog water to prevent people from being injured by splashing of waterproof beads

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