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Article source: http://www.tatxjx.cn/wxpzx/79.html In-depth discussion: 15618993814 As autumn arrives, the temperature difference between day and night increases, and the humidity is low with a dry climate; this makes it very easy for static electricity to accumulate in both the human body and equipment, thereby leading to safety accidents related to the handling of hazardous chemicals. The editor shares with you some basic knowledge on storing hazardous materials in autumn. 1. Basic measures (1) Controlling combustibles: Warehouses that store flammable and explosive hazardous materials should be built with fire-resistant materials to prevent the spread of flames ； Reduce the concentrations of flammable gases, vapors, and dust in the storage area to levels that do not exceed the maximum allowable concentrations ； Items with interacting properties should be stored separately. (2) Isolate from air: Some chemically flammable substances are stored by isolating them from air; for example, sodium is stored in kerosene, phosphorus is stored in dry water, and carbon disulfide is stored under an airtight water seal. (3) Eliminate the source of ignition: Eliminate the source of ignition by isolating it, controlling temperature, providing grounding, installing explosion-proof lights, and blocking sunlight, in order to prevent combustible materials from catching fire due to open flames or increased temperatures. 2. Open-flame measures Control sources of ignition at maintenance or construction sites, including open flames, impact friction, spontaneous heating, electric sparks, static electricity sparks, etc ； The use of open flames is prohibited in storage areas where there is a risk of fire or explosion ； In cases where open-flame operations such as electric or gas welding are necessary due to special circumstances, a fire work permit must be obtained ； Remove flammable and combustible materials from the area where welding will take place ； Equip with fire-fighting equipment. Personnel carrying out hot work must hold a valid license to do so. 3. Friction and impact control: Ensure proper lubrication during the operation of auxiliary equipment and pumps, and remove any combustible debris that may accumulate promptly ； When transporting metal containers containing flammable gases or liquids, it is necessary to prevent them from colliding with each other; they must not be thrown to avoid sparks or container ruptures that could lead to fires and explosions. People entering and leaving the area must not wear shoes with nails. During loading, unloading, and handling, do so gently to avoid vibration, impact, friction, heavy pressure, and tipping. 4. Natural heat control Oil-soaked rags, oil-cotton yarns, etc., which can cause fires, should be placed in metal containers, kept in safe locations, and cleaned up promptly. 5. Spark control Low-voltage electrical equipment is primarily used within the warehouse area, and this often results in short-term arc discharges and weak sparks at the contacts. Such phenomena pose a risk to flammable gases, volatile liquid vapors, and explosive dusts that require low ignition energy; therefore, electrical equipment and its wiring must be of explosion-proof type. 6. Static spark control Some people may think that static electricity is a minor issue and don’t pay it much attention. That’s completely wrong! In the most severe cases, static electricity can cause flammable materials to catch fire or explode, especially with flammable gases or vapors that require little ignition energy. In areas where gasoline, benzene, hydrogen, and similar substances are present, special attention must be paid to the hazards posed by static electricity. Personnel entering and leaving such areas should wear anti-static clothing; when transporting substances through pipes, the flow rate must be controlled. Tankers used for transporting bulk chemicals should have reliable static grounding systems, and the resistance of these grounding connections should be monitored and alerts issued if it exceeds certain limits. The entire system should be designed to either prevent the generation of static electricity or to quickly discharge any static that does occur. 7. Other fire source controls Avoid direct sunlight and implement appropriate cooling measures ； Indoor warehouses should avoid using high-power lighting fixtures that emit intense heat for extended periods; instead, cold light sources should be used ； Open flames are strictly prohibited within the reservoir area ； The use of handling tools that may generate sparks is prohibited ； The use of non-explosion-proof mobile phones is strictly prohibited. 8. Preventing the spread of flames and explosion waves The function of a flame arrestor is to prevent flames from entering equipment, containers, and pipes, or to stop flames from spreading within such equipment and pipes. Common flame arrestor devices include safety water seals, flame arresters, and check valves. Transport vehicles entering flammable and explosive storage areas must undergo inspections for the \"three certificates,\" be equipped with fire shields, and carry small fire-fighting equipment. For pressurized storage facilities, pressure relief devices are important safety mechanisms for preventing fires and explosions; these include safety valves, rupture discs, and vent pipes. 9. Other precautions When storing unstable olefins and dienes, measures should be taken to prevent self-polymerization, as this process releases heat and increases the risk of fire and explosion. Indicating devices such as pressure gauges (for liquefied gas storage, etc.), thermometers, level gauges, and high-level alarms (for flammable liquid storage tanks) can be used to conduct regular inspections, calibrations, and tests. In addition, the tank area should also be equipped with lightning protection and anti-static devices, which should be inspected once a year. 10. Emergency Equipment Automatic gas detection systems, fire alarm devices, and fire suppression sprinklers should be installed in areas prone to fires and explosions (since most liquid chemicals are lighter than water, using water to extinguish fires can cause the fire to spread). These devices need to be regularly inspected, tested, and calibrated, and the rescue equipment used must have explosion-proof properties.