What are the requirements for explosion-proof cabinet?
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1. Introduction of explosion-proof cabinet
Explosion-proof cabinet, also known as safety cabinet, fire cabinet, explosion-proof safety cabinet, dangerous goods storage, fire cabinet, flammable and explosive liquid storage cabinet, is classified storage of dangerous chemicals fire and security products.
Explosion-proof cabinet is a special industrial safety cabinet for storing inflammable and explosive articles, inflammable and explosive articles and weak corrosive articles, and also a special fire and explosion-proof storage tank designed according to the safety of industrial production.
At the same time, it can prevent the liquid overflow of dangerous chemicals, prevent fire, fire and explosion accidents, and play a fire and explosion-proof role.
High quality explosion-proof cabinet should obtain CE certification, OSHABIA standard and NFPA standard, explosion-proof test analysis report, fire resistance test analysis report and other relevant certification.
2. Characteristics of explosion-proof cabinet
The main results are as follows:
1) Explosion-proof cabinet adopts double steel structure, both inside and outside by pickling, phosphating treatment, epoxy resin electrostatic spraying treatment, can burn more than 2 hours more than 1000 degrees, but the internal temperature is not more than 200 degrees, can completely keep the products in the box, to achieve complete fireproof effect.
Explosion-proof cabinet is not easy to deform, not easy to absorb moisture, rust, corrosion, safety and stability, become an indispensable safety products in modern industry.
2) In the event of a fire, the special materials in the cabinet can block the fire source to better prevent the development and spread of fire.
(3) there is a special ground wire in the cabinet, which can output all the static electricity generated in the cabinet to better prevent static electricity from causing fire.
3. Small size, better storage of dangerous goods, flexible, convenient and comfortable placement.
Explosion-proof cabinet safety management
1) exhaust
Explosion-proof cabinets have dual exhaust ports, built-in fire extinguishers (with plugs), and are usually located on either side of the cabinet, one side high and one side low. According to the relevant safety specifications, if there is no exhaust, the exhaust port should be sealed by plug; If the safety cabinet needs to be vented for any reason, it should be vented in phase. Closing the safety standard setting shall not affect the performance of the explosion-proof safety cabinet.
2) the ground
Fire safety cabinets should be designed to be antistatic. When purchasing chemical fire and explosion cabinets, antistatic conductors should be equipped. The function of such antistatic wires is to eliminate and guide static electricity and prevent fires caused by static sparks.
Explosion-proof cabinet grounding is divided into internal grounding and external grounding.
External grounding: Install grounding screws and ground cables at specially arranged contact points in the explosion-proof cabinet, and connect the other end of the grounding cable with the grounding bus or grounding rod.
Internal grounding: When liquids are distributed and collected in explosion-proof cabinets, it is important to pump liquids out of drums or funnel waste into drums while ensuring electrical conductivity between metals. For paint products, you can scrape off the paint to expose the metal for connection. Some ground clamps are designed with cone tips pierced with paint. Shake the clip until the tip of the clip pierces the coating in contact with the metal part.
4. Precautions in the use of explosion-proof cabinet
The ground where explosion-proof safety cabinet is placed should be flat.
If multiple explosion-proof safety cabinets are placed together, the distance between each cabinet should not be less than 15 cm.
Explosion-proof safety cabinet should be far away from fire or other heating and cooling instruments and equipment, as well as splashing chemical liquid or slag.
There is a static conductance terminal post in the lower left corner of the cabinet. When properly placed, it should be connected with the static grounding wire to timely guide the static electricity accumulation in the cabinet.
Items placed on cabinet laminate should not exceed the laminate bearing limit. If the laminate has multiple layers, larger or heavier items should be placed on the lower laminate, while smaller or lighter items should be placed on the upper laminate.
If the explosion-proof safety cabinet is placed in an enclosed narrow space or in an area where volatilization of flammable liquids is strictly limited, the ventilation system should be connected to the vent of the cabinet to eliminate the accumulation of flammable liquids in the cabinet due to volatilization.
If there is insufficient lighting at night or at night, if necessary, place items or other operations in cabinets, turn on surrounding lights or carry explosion-proof flashlights to operate.
It is strictly prohibited to light candles, alcohol lamps or lighters near the cabinet to avoid burning and explosion.
Do not smoke, throw fireworks or throw away other burning objects in the place where cabinets are stored.
After opening the door, pay attention to the lock, do not open the cabinet door for a long time, to avoid fire into the cabinet.
Always take care to protect any locks installed on cabinets from being hit or otherwise damaged.
The cabinet is usually protected from collision, scratch or corrosive chemical liquid splashing on the cabinet, so as not to damage the cabinet or damage the coating on the cabinet.
Do not place strong corrosive chemicals in explosion-proof safety cabinets. Do not place strong corrosive chemicals and flammable chemicals in the same cabinet. Purchase special strong corrosive chemicals cabinets for classified storage.
Any lock device installed on the cabinet needs special personnel to be responsible for management, strictly prohibit non-management personnel to open at will.
It is recommended that the manager of the key be pre-supplied with an extra set of keys in case the key is damaged or accidentally lost for use.
