The transportation of dangerous goods is an indispensable link in the process of economic development. In recent years, with the rapid development of China's economy, especially the increasing proportion of petrochemical industry, the demand for transportation services has also increased. Therefore, the transportation of dangerous goods in China is gradually showing a trend of prosperity.

       Dangerous goods trailer is a kind of transportation tool often used in the transportation of dangerous goods. Generally, it is a special vehicle with open top of cargo compartment, front exhaust pipe and fireproof flower device.

      Generally, there are nine types of dangerous goods:

      Explosives, gases, flammable liquids, flammable solids, oxidants, organic peroxides, toxic and infectious substances, radioactive substances, corrosive substances, miscellaneous hazardous substances and articles.

       In the past, ordinary trailers could also be used to transport dangerous goods, but now the relevant control is becoming more and more strict. Vehicles that do not meet the regulations are not allowed to transport dangerous goods. The reason is that everything is for safety.

       So, what's the difference between dangerous goods trailer and ordinary Trailer?

1. Disc brake and ABS system. Disc brake must be installed on the front axle of dangerous goods trailer, and ABS system must be installed on the whole vehicle, so as to ensure braking performance, achieve anti lock function and improve safety.

2. Exhaust pipe. The engine exhaust pipe of dangerous goods Trailer shall be in front, and an exhaust spark arrester shall be installed at the tail end of the exhaust pipe to cool the motor vehicle exhaust gas.

3. Vehicle speed. The driving speed of dangerous goods Trailer shall not exceed 80 km / h.

4. Emergency cut-off device. Usually, the oil tank truck will be installed. It is a safety device installed at the liquid and gas interfaces such as LPG or LPG tank truck. In case of medium leakage, the valve can close automatically to stop the leakage in an emergency.

5. Warning signs. Dangerous goods transport trailers must be painted with safety notices, explosives diamond signs, hazard indicators and orange "explosion" words, so that other personnel can identify and find them in time.

6. Electrostatic conductive rubber tow belt. The trailer of dangerous goods needs to be equipped with static conductive rubber towing belt on the vehicle underframe, which can lead static electricity to the earth, keep the box at the zero position all the time, and prevent the generation of static sparks.

In addition, dangerous goods transport trailers should also be equipped with tachograph, cargo compartment ventilation design, ion smoke fire detector, electrostatic conductive rubber plate, anti explosion container, etc., which is much higher than ordinary trailers.

     The reason why the requirements are so strict is for safety. Safety is the most important thing in the transportation of dangerous goods. Therefore, in the selection of accessories, dangerous goods trailers must also use products with more reliable load-bearing, braking and safety performance. Darong group is the first enterprise to mass produce integrated axle in Liangshan special vehicle production base. Compared with the traditional three joint axle, the integrated axle independently developed by Darong group has stronger load-bearing capacity and higher bending and torsion resistance. High strength alloy seamless steel pipe is selected as the raw material of Darong axle, and 15 high standard production processes fully stimulate the comprehensive mechanical properties of raw materials such as strength, toughness, ductility and fatigue resistance. Darong car bridge culvert cover disc, drum, concave, low plate, three wire six axis and other products have rich types, which can fully meet the use needs of customers. In terms of price, Darong axle focuses on the cost-effective route, which aims to let customers use more affordable prices and higher quality axles.