Within the finishing industry, you will find a real link between safety and quality-especially when it comes to spray booths, which can run the potential risk of causing fire if not properly maintained. Equipment for dust collection is strategically created to meet specific needs in terms of performance, such as airflow velocity; fan, filter and burner capacity; and safety related to fire prevention and operator wellbeing.
However, when the manufacturer ships the equipment, installation, operator training and maintenance get to be the responsibility in the finisher. Therefore, it is recommended to give both Automobile Baking Booth and associated processes a comprehensive review for fire safety hazards and other incidents that could occur.
Dust Collection – There are 2 sides of dust collection: quality and safety. A high quality finish is the direct consequence of adequate removing of airborne particles that may contaminate finished surfaces. This contamination causes rejects or rework of product which leads to lost profits.
It’s not simply surface finish that particle build-up could affect, though. Otherwise cleaned, particles can migrate to locations where operators might not have proper breathing protection, and fire turns into a real hazard. Sufficient airflow is essential.
The very best reasons for fire in dust collection systems include: static electricity discharge, exothermic reaction because of chemical reaction of collected dust,
cutting or welding too close to the area.
In essence to gather the dust using a well-designed dust collection system that incorporates a smart layout and balanced air replacement. As suggested through the National Fire Prevention Association (NFPA): “Air flow must be carefully considered.” Criteria for dust collection processes usually include air velocity inside the booth of 125 to 150 FPM. If properly filtered, this air could be recycled back into the facility. Fresh air dilution ratios for any facility should also consider heat, off-gases, and odors from ancillary processes including sanding or grinding.
Additionally, doors or pressurized plenums may be used to contain dust. An investment in containment will be reflected in less cash invested in cleaning and correcting finish rejects.
Spray Finishing Systems and Booths – Automotive Paint Both have numerous their very own specific requirements for safety and quality. First, sufficient and laminar airflow is needed so the exhaust can capture overspray and pull it towards the filtration systems, which may be either a dry filter or even a water wash. To remove particulate through the air, the right filter media or chamber is important. Then, the fresh air supply needs to be not only clean, but in addition in the correct temperature. Modern-day coatings could also require humidity control. And of course, all equipment needs to be properly grounded.
The very best fire prevention may start with knowledge of what can cause a fire in a spray booth. In a conventional system, leading causes of fire include:
using spark-producing equipment including cutting, welding or grinding close to the spray area; friction, in most cases brought on by overheated bearings on the exhaust fan, or by rubbing of exhaust fan blades against overspray deposits on the wall of the duct; arcing electrical equipment;
spontaneous combustion; and discharge of static electricity.
In electrostatic spray operations, main reasons for fire include: ungrounded or improperly grounded objects in the spray area, failure to totally discharge equipment before cleaning, pinhole leaks in the paint tubing towards the spray gun, other causes much like conventional systems such as smoking, cutting and welding.
Most of these situations are entirely preventable, and a number of them relate to maintenance in the spray booth, a problem called out in Chapter 10 of the NFPA 33: Standard for Spray Application Using Flammable or Combustible Materials. The section covers general maintenance requirements, removal of combustible deposits, maintaining high-pressure hoses, waste containers, clothing and cleaning operations amongst other very good information.
When spray booths and finishing equipment are installed, they fulfill the criteria for a quality job the first time through. It’s as much as the store to maintain the device clean to ensure that it meets that perfect, first-time performance each and every time. The system should allow for: proper airflow to get overspray to the filters rather than on the booth floor, and proper filtration to keep contaminants out from the air but additionally to prevent overspray buildup on the fan or perhaps in the exhaust duct.
For excellent prevention standards, keep Europe Spray Booth, modify the booth filters regularly, check the fan and stack for buildup, guard against static electricity and study the NFPA 33.
Paint Curing or Drying Ovens – Infrared and convection ovens employed for paint curing or drying are another obvious fire hazard inside the shop. Again, the best advice is to remember to keep the area clean and provide adequate intake air. Remove combustible deposits, and also to eliminate the risk of spontaneous combustion, make sure you possess the correct exhaust volume and purge time. Keep solvent load within the oven beneath the “Lower Flammability Level,” and purge the oven before startup.
The same things to consider for airborne contaminants needs to be applied to oven maintenance. Filtered recirculating air or filtered air seals could be critical, and both should be considered.
Airflow for ovens must have sufficient exhaust to evacuate solvent vapors and smoke. Also, analyze product conveyance and design the airflow in the oven to lower stirring or tracking in dirt. Intake and mkmozc filters can be purchased in many temperature ranges to match any process.
Ovens, when employed for the things they are created are for, are a very safe operation as most solvents are evaporated and other airborne contaminants and combustible deposits shouldn’t be present. It’s very dangerous each time a convection oven is used for other means, like to evaporate solvents by the drum-load, harden booth filters or ‘treat’ other waste deposits.
SD Longxiang with a professional team for designing and manufacturing spray booth, we try to support the products and service packages for every customer with their customized request, we are not only supply the products, we supply are designer for your painting and spraying works, we supply the solution that helps you work smarter, save time and money and achieve outstanding results, now and in the future.
Shandong Longxiang Machinery Co., Ltd.
Address: Longyao Industrial Park, Xinzhai Township, Zhangqiu district, Jinan city, Shandong, China
E-mail: [email protected]