What are the cleaning standards for methyl methacrylate transport tanker?

Cleaning standards and precautions for methyl methacrylate transport tanker

Methyl Methacrylate (MMA) is an important chemical raw material, which is widely used in the production of plastics, coatings, adhesives and so on. Due to its flammable and volatile characteristics, there is a high safety risk during transportation. Therefore, the cleaning work of methyl methacrylate transport tanker must strictly follow the relevant standards and specifications to ensure the safety and environmental protection during the cleaning process. This article will analyze the cleaning standards and precautions of methyl methacrylate transport tanker in detail.

1. Methyl Methacrylate Transport Tank Cleaning Safety Standard

When cleaning the methyl methacrylate transport tank, the first task is to ensure the safety of the operator. MMA is a flammable liquid, and its vapor may mix with air to form an explosive mixture, so a comprehensive safety assessment and preparation must be carried out before cleaning.

1. Gas Detection and Ventilation Before cleaning the tanker, professional testing equipment must be used to detect the gas in the tanker to ensure that the concentration of combustible gas inside is lower than the lower explosive limit. Good ventilation should be maintained during the cleaning process to avoid danger due to gas accumulation. Forced ventilation equipment can be used to exhaust the gas in the tank car to ensure that the concentration of combustible gas in the air is controlled within a safe range.

2. Safety protection measures Operators must wear personal protective equipment (PPE) that meets the requirements, including chemical protective clothing, gas masks, protective gloves, protective shoes, goggles, etc. The cleaning site should be equipped with fire extinguishing equipment, such as dry powder fire extinguishers or carbon dioxide fire extinguishers, to deal with possible fire or explosion accidents.

3. No Fireworks Tank car cleaning site is strictly prohibited to carry fire or smoking, so as to avoid burning or explosion accidents. Use explosion-proof tools during cleaning and ensure that all electrical equipment meets explosion-proof requirements.

2. methyl methacrylate transport tanker cleaning environmental standards

Methyl methacrylate is a toxic and harmful substance, and the waste liquid and exhaust gas generated during the cleaning process may cause pollution to the environment. Therefore, when cleaning the tanker, environmental protection standards must be strictly observed to ensure that the impact of the cleaning process on the environment is minimized.

1. waste liquid treatment The waste liquid generated during tank cleaning shall be properly collected and sent to a qualified hazardous waste treatment unit for treatment. It is forbidden to discharge waste liquid directly into sewers or the environment to avoid pollution to water bodies and soil.

2. Cleaning agent selection In the choice of cleaning agents, should be preferred to use environmentally friendly cleaning agents, avoid the use of environmentally harmful chemicals. The choice of cleaning agent should comply with the relevant national environmental regulations, and ensure that the cleaning agent will not react with MMA to produce new hazardous substances.

3. Exhaust gas treatment Exhaust gases containing MMA vapors may be produced during the cleaning process, which must be treated before emission. Activated carbon adsorption, catalytic combustion and other methods can be used to treat exhaust gas to ensure that exhaust emissions meet national environmental standards.

3. methyl methacrylate transport tank cleaning process

The process of cleaning the methyl methacrylate transport tank usually includes emptying the tank, ventilation, mechanical cleaning, chemical cleaning and final inspection and acceptance.

1. Empty tanker Before cleaning, the MMA in the tank must be completely emptied and no residue or sediment left. Empty the tank car should be thoroughly emptied to avoid the residual liquid or gas on the subsequent cleaning work.

2. Mechanical cleaning Mechanical cleaning refers to the use of high-pressure water guns, brushes and other tools to physically clean the interior of the tank to remove dirt and residue on the surface. Mechanical cleaning can effectively reduce the use of chemical cleaning agents and reduce the burden on the environment.

3. chemical cleaning Chemical cleaning is a chemical reaction to the interior of the tank by using a cleaning agent to remove stubborn residues. The choice of cleaning agent should be based on the chemical properties of MMA to ensure that the cleaning agent will not react with MMA, and the cleaning agent should have good biodegradability to reduce the impact on the environment.

4. Inspection and Acceptance After the cleaning is completed, the tank car should be fully inspected to ensure that the interior is clean and free of residues and odors. The inspection shall include visual inspection and gas detection to ensure that there is no hazardous gas residue in the tanker and the cleaning standard is met.

4. Conclusion

The cleaning of methyl methacrylate transport tanker involves many aspects such as safety, environmental protection and operation, and must strictly comply with relevant standards and specifications. Through scientific and reasonable cleaning process and strict safety and environmental protection measures, the risk in the cleaning process can be effectively reduced, and the safety of personnel and environment can be guaranteed. Choosing the appropriate cleaning agent and treatment method can significantly improve the cleaning efficiency and extend the service life of the tank. In the future, with the increasingly stringent environmental regulations, cleaning technology will continue to improve, providing strong support for the sustainable development of the chemical industry.