Prevention and control of electrostatic hazards in warehouses
The following steps are generally used in storage to prevent and control the hazards of static electricity.
1. The material should be controlled to prevent static electricity. For example, for flammable liquids, limit the flow rate in the pipeline, control the loading and unloading mode, prevent mixing of different oils and solvents, and prevent water and air entrainment in the liquid.
2. Take measures to dissipate the generated static electricity as soon as possible to avoid accumulation. For example, installing a good grounding device on the equipment, increasing the relative humidity of the workplace, laying a conductive floor on the ground, and spraying conductive paint on some tools are all conducive to static discharge.
3. Add a certain amount of counter-charge to the charged body to neutralize the charge on the charged body to avoid the static voltage rising. This type of method is used if an inductive electrostatic neutralizer is used.
4. In some cases, static electricity accumulation is unavoidable, static voltage rises rapidly and even electrostatic discharge sparks may occur. Measures should be taken to prevent fire and explosion accidents even though they are discharged. For example, the space of the flammable liquid storage tank is filled with an inert gas such as nitrogen, a control alarm device is installed, and a high-efficiency exhaust device is used to make the flammable gas or dust in the air reach the explosion limit.
5. In places where fire and explosion hazards exist, such as chemical dangerous goods storage places, workers wear conductive shoes and static-conducting overalls, etc., to eliminate static electricity from the human body in time, is also an effective measure to prevent static hazards.