Briefly describe the precautions for handling hazardous chemical fires

1. For wet and flammable fires, dry powder and carbon dioxide should be used.

to extinguish fires, but contains aluminum, potassium, magnesium and other individual hazardous chemicals.

The use of carbon dioxide is ineffective. It should be noted that water, foam, acid and alkali fire extinguishers should never be used to extinguish fires. If it is a solid wet and flammable material, cover the fire with cement, dry powder, dry sand, etc.

2. For the fire caused by compression and karmic fire gas, it is possible to use water extinguishing, dry powder and carbon dioxide to extinguish the fire.

3. For the fire of the first object, the hanging water flow is used to extinguish the fire, and it should be noted that it must not be covered with sand.

4. For flammable liquids.

fires can usually be extinguished with mist water. However, it is better to extinguish the fire with foam, carbon dioxide and dry powder.

5. Targeting radioactivity.

For fires, water should be used quickly to extinguish the fire, or foam, dry powder, and carbon dioxide should be used to extinguish the fire.

6. For oxidant (organic oxide) fires, foam, carbon dioxide, dry powder, soil, etc. should be used to extinguish the fire. Dry ice can also be used.

Liquid nitrogen and other low-temperature treatment.

7. For the fire of flammable solids and spontaneously combustible hazardous chemicals, it is necessary to spray mist water above and around the burning area, and all the surrounding fire sources must be extinguished. Dry sand and dry powder (without pressure spray) can also be used to extinguish the fire.

8. For the fire of poisonous and corrosive products, low-pressure water flow (mist water) should be used as much as possible, and corrosive and poisonous products should be avoided from splashing. If you encounter acid and alkali corrosives, it is best to dilute them with a neutralizer to neutralize them. If it is a fire with a large amount of sulfuric acid, it is necessary to extinguish the fire with dry powder, carbon dioxide, etc., so that the fire product and concentrated sulfuric acid will be ignited. Apart.

Dear, hello, I am happy to answer for you: what emergency rescue should be taken in the event of leakage and fire accidents in the Zhengmeng Zheng toxic chemical warehouseAnswer: Leakage source control 1) Stop all operations and close the relevant valves; 2) After the pipeline leaks, the ** valve should be closed in time; 3) After the leakage of the iron drum, the leakage port is facing up, and the liquid in the drum is transferred to other empty drums, and the lid is closed. (2) The leakage treatment site should be drained, covered, absorbed, and treated in a timely manner, so that the leakage can be safely and reliably disposed of, and the occurrence of secondary accidents should be prevented.

There are three main methods for the disposal of leakage: 1) DrainageFor the liquid that spreads and spreads everywhere, it is difficult to collect and deal with it for a while, and the method of drainage is used to drain the leaking liquid to a safe place. 2) Cover and absorb the liquid with a small amount of leakage, and the fire sand can be used to cover and absorb the leaked liquid.

3) Waste disposalAfter the emergency rescue, the liquid waste generated can be discarded only after being disposed of by a professional company or after harmless treatment. (4) Precautions: 1) Personnel entering the site must be equipped with necessary personal protective equipment for missing holes; 2) Set up an on-site cordon, and strictly prohibit irrelevant personnel from entering the scene; 3) Cut off the fire source, strictly prohibit fire, and use tools that do not produce sparks to prevent fire and accidents.

1. Quickly close the upstream and downstream valves of the fire site, and cut off all materials entering the fire accident site; 2. Before the fire expands to the point that it is uncontrollable, mobile fire extinguishers or other fire-fighting equipment and equipment on site should be used to extinguish the initial fire and control the fire source.

Article 8 of the Fire Protection Law of the People's Republic of China Local people at all levels shall incorporate fire protection planning including fire safety layout, fire stations, fire water supply, fire communications, fire truck access, fire fighting equipment and other contents into urban and rural planning, and be responsible for organizing and implementing them.

If the urban and rural fire safety layout does not meet the fire safety requirements, it shall be adjusted and improved; If the public fire-fighting facilities and fire-fighting equipment are insufficient or do not meet the actual needs, they shall be added, reconstructed, configured or technologically transformed.

The requirements for emergency treatment of hazardous chemicals are: ().

a.Take targeted protective measures for emergency personnel (correct pointing to the big answer) bFire extinguishers should not act alone (correct answer).

c.The exit should be kept clear so that you can evacuate at any time (correct answer only) dExtinguish the fire at all costs.

Legal analysis: 1. Quickly close the upstream and downstream valves of the fire site, and cut off everything that enters the fire accident site; 2. Before the fire expands to the point that it is uncontrollable, mobile fire extinguishers or other fire-fighting equipment and equipment on site should be used to extinguish the initial fire and control the fire source.

Legal basis: Fire Protection Law of the People's Republic of China Article 8 Local people at all levels shall include fire safety layout, fire stations, fire water supply, fire communications, fire truck access, fire equipment and other contents of the fire protection planning into urban and rural planning, and be responsible for organizing the implementation.

The urban and rural fire safety layout does not refer to the stove meeting the fire safety requirements, and it should be adjusted and improved; If the public fire-fighting facilities and fire-fighting equipment are insufficient or do not meet the actual needs, they shall be added, reconstructed, configured or technologically transformed.