LED explosion-proof lamp is a kind of explosion-proof lamp. Its principle is the same as that of explosion-proof lamp, except that the lamp bead is an LED lamp bead, which refers to various measures taken to prevent the ignition of surrounding explosive mixtures such as explosive gas environment, explosive dust environment, gas gas, etc. luminaires with specific measures. One of the very important explosion-proof principles of explosion-proof lamps is to limit the temperature of the surface of the casing, the surface of parts or the surface of electronic components in contact with explosive gases and explosive dust, and to limit the temperature of the electrical contact surface to be lower than its minimum ignition temperature or ignition temperature.
The following are common safety measures in powder coating workshops:
Safety measures in powder coating workshop
Powder coatings are flammable substances, with the danger of burning and dust explosion. In addition, dust is easy to cause scattering, which is harmful to people's health.
Dust explosion is a place where the powder coating and air are mixed, and the concentration of xian under explosion (it varies with the type of coating, generally 20-50g/m3, such as the lower explosion limit concentration of epoxy resin powder is 30g/m3) or more, It can only be produced when there is an ignition source with a minimum ignition energy (10mJ-40mJ, and the ignition energy of epoxy resin powder is 15mJ). In order to prevent dust explosion, first eliminate the ignition source generated by the oil powder spraying equipment, and control the dust concentration and dust scattering. specific measure:
1 Due to the use of high-voltage electricity on electrostatic painting equipment, the insulation of spray guns and cables must be checked regularly.
2 During spraying, the spray gun should not be too close, let alone the grounded conductor.
3. The spray booth, air duct, recycling device, transport chain, hanger, and other metal machinery and equipment must be well grounded.
4. Coated objects, hanging tools, etc. should not be dropped in the painting room.
5. The coating film attached to the transport chain and the hanger should be cleaned regularly to ensure that the coated object is well grounded.
6 Coating operators wear conductive shoes and dust masks
7 In places with explosion hazard, electrical components and equipment should comply with the electrical regulations of the area. Electrical appliances, switch boxes, etc. should be dust-removing type, and powder should not enter.
From the above safety measures, it can be seen that the lighting and electrical equipment of the powder coating workshop must also meet the needs of on-site safety protection. Ordinary lighting fixtures cannot meet this standard. Only the use of LED explosion-proof lights can achieve explosion-proof, dust-proof, waterproof and anti-static. These requirements can effectively ensure the safety of the scene.
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