How to install anti-static facilities in methyl methacrylate workplaces?

How to install anti-static facilities in methyl methacrylate workplaces?

In the chemical industry, methyl methacrylate (Methyl Methacrylate, referred to as MMA) is an important chemical raw material, widely used in plastics, coatings, adhesives and other fields. Due to its flammable and volatile characteristics, MMA has a high risk of fire and explosion during production and storage. Especially in the workplace, the accumulation and discharge of static electricity is one of the important causes of accidents. Therefore, the installation and maintenance of anti-static facilities has become a key link to ensure operational safety. This paper will analyze the installation methods and precautions of anti-static facilities in methyl methacrylate workplaces in detail.

Why should 1. install anti-static facilities?

During the storage and use of methyl methacrylate, due to its high volatility and flammability, the accumulation of static electricity can easily cause sparks, leading to fire or explosion accidents. Especially in a dry environment, static charge is more likely to accumulate. Therefore, the workplace must take effective anti-static measures to ensure that the electrostatic charge can be exported or neutralized in time to avoid the danger caused by electrostatic accumulation.

According to the "Explosion-proof Electrical Equipment for Explosive Atmospheres" (GB 15577) and "Regulations on the Safety Management of Hazardous Chemicals" (GB 13348) and other relevant standards, chemical companies have the responsibility to take necessary anti-static measures to ensure the safety of the workplace. These standards clearly specify the design, installation and maintenance requirements of anti-static facilities to minimize the risk of accidents caused by static electricity.

Installation steps of 2. anti-static facilities

1. ground treatment and anti-static floor construction
   the ground of the workplace is one of the main sources of static electricity accumulation, so the anti-static treatment of the ground is very important. In the installation of anti-static facilities, the first need to deal with the ground to ensure that it has good conductivity. Common methods include:

• anti-static floor coating: Select anti-static floor coatings with good conductive properties, and carry out layered coating according to the product instructions during construction to ensure the continuity and conductivity of the coating.
• Laying conductive floor mat: Laying conductive materials on the ground, such as conductive floors or anti-static ground mats, can effectively reduce the resistivity of the ground and prevent static electricity accumulation.
• Grounding treatment: In the ground construction process, grounding terminals need to be set to ensure that static electricity can be quickly released through ground conductive materials.

1. Grounding of equipment and installation of anti-static device
   all equipment in contact with MMA (such as mixers, transmission pipes, storage tanks, etc.) must be reliably grounded. Specific steps are as follows:

• equipment grounding design: The metal part of the equipment should be connected to the grounding terminal through a special grounding wire to ensure that the equipment is in an "equipotential" state to avoid static electricity accumulation.
• Installation of static grounding device: Install electrostatic grounding devices at key locations of the equipment (such as the inlet and outlet of the conveying pipeline) to ensure that static electricity can be exported in time during material conveying.
• Ground resistance detection: Regularly check the resistance value of the grounding device to ensure that the grounding system is in good condition. According to relevant standards, the grounding resistance shall be less than 100 Ω.

1. Installation and Commissioning of Static Eliminator
   in the workplace, the static eliminator is another important anti-static equipment. By generating positive and negative ions, the static eliminator is able to neutralize the electrostatic charge in the air, further reducing the risk of electrostatic discharge. Note the following points when installing the static eliminator:

• installation location selection: The static eliminator should be installed in an area prone to static electricity, such as equipment entrance, material conveying area, etc.
• Commissioning and calibration: The ion balance of the static eliminator must be professionally debugged to ensure the balance of positive and negative ion output and avoid secondary static problems caused by ion imbalance.
• Regular maintenance: The static eliminator needs regular cleaning and maintenance to ensure its normal operation.

Maintenance and Management of 3. Anti-static Facilities

1. periodic inspection and testing
   the performance of anti-static facilities will be affected by environmental changes or equipment aging. Therefore, enterprises should regularly inspect and test anti-static facilities, including:

• check the integrity of the ground conductive layer to make sure that there is no damage or peeling.
• Measure the grounding resistance of the equipment to ensure that it meets the requirements of the standard.
• Check whether the ion output of the static eliminator is balanced, and replace the damaged parts in time.

1. Cleaning and maintenance
   the cleaning and maintenance of anti-static facilities is an important link to ensure its long-term effectiveness. For example:

• anti-static floor needs to be cleaned regularly to avoid dirt coverage affecting conductive properties.
• The ionization needle and filter of the static eliminator need to be cleaned or replaced regularly to ensure its output efficiency.

1. Personnel training and awareness raising
   the consciousness and operation specification of operators directly affect the effect of anti-static facilities. Enterprises should regularly conduct anti-static knowledge training for employees, including:

• electrostatic hazards and preventive measures.
• The use of anti-static facilities and precautions.
• Emergency handling process in case of emergency.

4. Summary

the installation of anti-static facilities in methyl methacrylate workplaces is a systematic project, which needs to be comprehensively considered from the ground treatment, equipment grounding, static elimination and other aspects. Through scientific design, standardized installation and strict maintenance management, the risk of accidents caused by static electricity can be effectively reduced to ensure the safety of the workplace. For chemical enterprises, the installation of anti-static facilities is not only a regulatory requirement, but also an important guarantee for the safety of enterprises.