Reasons for fire and explosion accidents in chemical dangerous goods transport vehicles
Violation of safety management regulations, illegal loading and unloading caused by fire. Chemical dangerous goods should be operated in strict accordance with the operating procedures during the loading and unloading process. Use tools and machinery that meet the safety requirements. If the operating procedures are violated, rough operations such as dragging and rolling, or use of unqualified tools and equipment, Cause a fire or explosion.
Mixing chemicals with conflicting properties leads to fire and explosion accidents. Chemically contradictory articles are strictly prohibited from being mixed together, especially some highly reductive oxidants and organic peroxides. If flammable or combustible materials are encountered, the reducing agent may cause a severe chemical reaction, causing combustion or explosion. .
Poor car conditions lead to fire caused by sick work. Chemical dangerous goods transport vehicles require drivers to have higher driving skills. The vehicle status must be approved by the local vehicle inspection agency, the vehicle conditions are running well, and the fire safety requirements are met before the chemical dangerous goods business can be transported. However, some units and individuals are eager to smoke, in order to run fast, use unqualified vehicles to transport, resulting in misfortune.
Static electricity causes a fire. Flammable liquids, especially petroleum products, are almost all organic compounds. The molecular composition contains a large number of carbon atoms and hydrogen atoms. It is a non-electrolyte. Most of them are not ionizable. The electrical resistivity is extremely high. It is easy to accumulate static electricity when flowing and shaking. Electrostatic discharge A spark is generated that causes a fire. On May 30 last year, Tianjin Jindong Xinxing Dangerous Goods Yard, when the train tank was directly filled into the car tank, the static sparks generated caused the fire to catch fire, burned the car tanker 3 cars, burned two slots. Tanker.
A traffic accident has caused a fire. Some car drivers violate the "Fire Safety Supervision and Management Measures for Flammable and Explosive Chemical Hazardous Materials" and traffic regulations in the process of transporting chemical products, drive a car, open a "hero car", force a car, overtake or fatigue drive, with Driving a car, causing a fire after a traffic accident. On November 5, 1992, a Yellow River tanker in the Dagang Oilfield No. 2 Oil Production Plant collided with the Shengli Oilfield Power Supply Company, a liberation trailer, near the West Liuqiao of Guangrao County. It burned 7 tons of gasoline and a car. .
Lack of understanding of the performance of chemical hazardous materials creates a fire accident. There are about 2,000 kinds of common chemical dangerous goods. The main physical and chemical properties and hazard characteristics are different. The safety measures adopted during transportation are different. If the escorts and drivers lack the understanding of the dangerous characteristics of the physical and chemical properties of chemicals. It is very easy to cause a fire accident. On May 17, 1992, a unit used a car to transport sulfuric acid. The sulfuric acid overflowed onto the car body and a chemical reaction occurred. The driver and the escort thought that the sulfuric acid would not burn without any treatment. As a result, the chemical reaction between sulfuric acid and the car body was generated. The hydrogen gas caused a deflagration in the case of an open fire, burning a car, and 1.5 tons of sulfuric acid.
For the transport of chemical dangerous goods, the following safety measures should be taken:
1. Strengthen fire safety training. The escorts and pilots should be proficient in the physical and chemical properties and characteristics of chemical dangerous goods, bearing in mind the common sense of transportation safety. The escorts and drivers of chemical dangerous goods transport vehicles must undergo fire safety training and be proficient in the physical and chemical properties of the dangerous goods transported. , fire hazard and fire-fighting common sense, qualified by the public security fire department, holding the "fire-fighting training certificate" issued by the public security fire department and the "cargo certificate issued by the traffic management department" can engage in the transport of dangerous goods.
2. The vehicle is in good condition and meets fire safety requirements. Vehicles transporting chemical dangerous goods belong to special transportation vehicles. They should have the annual inspection certificate of the local traffic management department, the vehicle is in good condition, the equipment is complete, and the local public security fire supervision agency has passed the test, which is in compliance with the "flammable and explosive chemical dangerous goods." Article 19 of the Fire Safety Supervision and Administration Measures stipulates that it holds the "Important Certificate of Inflammable and Explosive Chemicals" issued by the public security fire department.
3. It is strictly forbidden to mix goods. Inflammable and explosive chemicals that are incompatible with chemical properties, safety protection and fire-fighting methods are strictly prohibited from being mixed and should be shipped separately to avoid friction, impact and violent shaking. Chemicals that are prone to explosions or produce toxic gases when exposed to heat should be transported at night and insulated and cooled. Chemicals that are prone to cause explosions or toxic gases, such as diethyl zinc, triethyl aluminum, calcium carbide, etc., should not be transported on rainy days.
4. Fireworks and open fires are strictly prohibited. During the transportation of chemical dangerous goods, the transport personnel shall not smoke and use open flames. Unrelated personnel shall not ride the vehicle. They shall drive and park according to the prescribed routes. It is forbidden to stay in public places, crowded places and places where sparks are easy to spark. Such as bazaars, downtown areas, cinemas, gymnasiums, boiler rooms, electrical welding sites, etc.
5. Concentrate, be cautious, and drive at medium speed. Drivers transporting dangerous goods should strictly abide by the relevant provisions of the "Road Traffic Management Regulations" during transportation, concentrate on caution, and do not drive fast cars or hero cars. It is necessary to maintain sufficient energy, drive without a disease, drive without fatigue, drive without alcohol, and avoid traffic accidents.
6. Strict inspection of items. Chemicals that are not tightly packed, damaged, name, label, and mark are not obvious, and tanks that do not meet safety requirements, and gas cylinders that do not have a bottle cap, may not be shipped, and gently handle during the canning process to prevent collision, drag and Dumped.
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