Prevention of electrostatic hazards of packaging materials in storage
The following methods are generally used to prevent and control the hazards caused by static electricity in the storage of packaged goods:
1. The packaging should be controlled to avoid static electricity as much as possible. For example, when handling flammable liquids, it is necessary to limit the violent shaking in the packaging drum, control its loading and unloading methods, prevent the leakage and mixing of different oil products, and prevent water and air in the steel drum.
2. Take measures to dissipate the generated static electricity as soon as possible to avoid accumulation. For example, install good grounding devices on handling tools, increase the relative humidity in the workplace, lay conductive floors on the ground, and spray conductive paint on certain tools.
3. Add a certain amount of counter-charge to the charged body to avoid the increase of static voltage (such as inductive electrostatic neutralizer).
4. In some cases, the accumulation of static electricity is inevitable, and the rapid rise of static voltage may even produce static sparks. At this time, measures must be taken to prevent an explosion accident despite the discharge. For example, fill the flammable liquid storage space with inert gas, install an alarm device, and use an exhaust device to prevent the flammable gas or dust in the air from reaching the explosion limit.
5. In places with fire and explosion hazards, such as storage places for dangerous chemical products, workers should wear conductive shoes and electrostatic overalls, and eliminate the static electricity of the human body in time.
