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    Home > Coatings News > Paints and Coatings Market > Safety factors affecting powder coatingand and coating operations

    Safety factors affecting powder coatingand and coating operations

    • Last Update: 2020-03-04
    • Source: Internet
    • Author: User
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    since the introduction of powder coating and coating technology, to solve the problem of solvent-based coating toxic, flammable and explosive, but there are still many problems, still a long way from rooting out these problemsIn order to prevent the occurrence of these problems to the greatest extent, it is necessary to make a careful analysis of the factors affecting the health and safety of powder coatings and coating operations, so as to find effective methods of prevention and controlThe main factors are:, dust leakageaffect dust leakage factors are many, mainly the following situations:(1) equipment factors
    for the coating operation plant, it is mainly related to the size of the powder chamber, form, recycling system design, recovery air volume, pipeline direction, equipment layout and other factors(2) whether the quality of workersequipment is operating according to operating procedures, whether the workers maintain, clean and replace the filter bags in a timely manner, and whether the amount of powder sprayed and the air pressure are properly controlled may be affected(3) system designa single device performance is good, can not ensure that the dust does not leak at all, which is closely related to the system designWhen the powder booth, baking, workshop door and window location, plant ventilation, local climate direction and other treatment is not right, may become an important cause of dust leakage, powder combustion explosion elementscause powder combustion explosion factors are many, mainly the following aspects:(i) dust concentration exceeds the lower limit
    due to the above reasons, resulting in the powder spray room or workshop dust concentration exceeds the lower limit of the explosion, thus forming the main condition of powder combustion explosion, if there is a moderate source of fire, it is very likely to produce combustion and explosion(ii) powder and paint workshop mixed powder spray and paint workshop mixed in a workshop Two sets of equipment side by side or threaded on a line, sometimes using solvent-based paint, sometimes using powder spray system, resulting in the paint volatile flammable gas pervading the entire workshop, and the powder system leakage dust also floated in the workshop, forming a powder mixing environment, with a greater risk of combustion explosion (3) the source of the fire caused by the powder burning fire source many, mainly the following cases: 1, one of the most dangerous is open fire If welding, oxygen cutting, lighter fire, match spot smoking, candle fire, etc occur in the hazardous area of the powder site, it may cause a combustion explosion 2, the hot source in the powder danger zone, the appearance of red steel, non-explosive lamps suddenly broken, resistance wire suddenly power, infrared plate power and other hot sources, may cause powder combustion 3, electrostatic discharge in the powder room, when the dust concentration reaches the lower limit of the explosion, if the powder gun and the workpiece or powder booth suddencontact appear static fire, or motor, electrical fire, will also cause powder combustion
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